/*
 * IWineD3D implementation
 *
 * Copyright 2002-2004 Jason Edmeades
 * Copyright 2003-2004 Raphael Junqueira
 * Copyright 2004 Christian Costa
 * Copyright 2005 Oliver Stieber
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

/* Compile time diagnostics: */

#ifndef DEBUG_SINGLE_MODE
/* Set to 1 to force only a single display mode to be exposed: */
#define DEBUG_SINGLE_MODE 0
#endif


#include "config.h"
#include <assert.h>
#include "wined3d_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d);
WINE_DECLARE_DEBUG_CHANNEL(d3d_caps);

/* Extension detection */
static const struct {
    const char *extension_string;
    GL_SupportedExt extension;
    DWORD version;
} EXTENSION_MAP[] = {
    /* APPLE */
    {"GL_APPLE_client_storage",             APPLE_CLIENT_STORAGE,           0                           },
    {"GL_APPLE_fence",                      APPLE_FENCE,                    0                           },
    {"GL_APPLE_flush_render",               APPLE_FLUSH_RENDER,             0                           },
    {"GL_APPLE_ycbcr_422",                  APPLE_YCBCR_422,                0                           },

    /* ATI */
    {"GL_ATI_separate_stencil",             ATI_SEPARATE_STENCIL,           0                           },
    {"GL_ATI_texture_env_combine3",         ATI_TEXTURE_ENV_COMBINE3,       0                           },
    {"GL_ATI_texture_mirror_once",          ATI_TEXTURE_MIRROR_ONCE,        0                           },
    {"GL_ATI_envmap_bumpmap",               ATI_ENVMAP_BUMPMAP,             0                           },

    /* ARB */
    {"GL_ARB_draw_buffers",                 ARB_DRAW_BUFFERS,               0                           },
    {"GL_ARB_fragment_program",             ARB_FRAGMENT_PROGRAM,           0                           },
    {"GL_ARB_fragment_shader",              ARB_FRAGMENT_SHADER,            0                           },
    {"GL_ARB_half_float_pixel",             ARB_HALF_FLOAT_PIXEL,           0                           },
    {"GL_ARB_imaging",                      ARB_IMAGING,                    0                           },
    {"GL_ARB_multisample",                  ARB_MULTISAMPLE,                0                           }, /* needs GLX_ARB_MULTISAMPLE as well */
    {"GL_ARB_multitexture",                 ARB_MULTITEXTURE,               0                           },
    {"GL_ARB_occlusion_query",              ARB_OCCLUSION_QUERY,            0                           },
    {"GL_ARB_pixel_buffer_object",          ARB_PIXEL_BUFFER_OBJECT,        0                           },
    {"GL_ARB_point_parameters",             ARB_POINT_PARAMETERS,           0                           },
    {"GL_ARB_point_sprite",                 ARB_POINT_SPRITE,               0                           },
    {"GL_ARB_texture_border_clamp",         ARB_TEXTURE_BORDER_CLAMP,       0                           },
    {"GL_ARB_texture_compression",          ARB_TEXTURE_COMPRESSION,        0                           },
    {"GL_ARB_texture_cube_map",             ARB_TEXTURE_CUBE_MAP,           0                           },
    {"GL_ARB_texture_env_add",              ARB_TEXTURE_ENV_ADD,            0                           },
    {"GL_ARB_texture_env_combine",          ARB_TEXTURE_ENV_COMBINE,        0                           },
    {"GL_ARB_texture_env_dot3",             ARB_TEXTURE_ENV_DOT3,           0                           },
    {"GL_ARB_texture_float",                ARB_TEXTURE_FLOAT,              0                           },
    {"GL_ARB_texture_mirrored_repeat",      ARB_TEXTURE_MIRRORED_REPEAT,    0                           },
    {"GL_ARB_texture_non_power_of_two",     ARB_TEXTURE_NON_POWER_OF_TWO,   0                           },
    {"GL_ARB_vertex_blend",                 ARB_VERTEX_BLEND,               0                           },
    {"GL_ARB_vertex_buffer_object",         ARB_VERTEX_BUFFER_OBJECT,       0                           },
    {"GL_ARB_vertex_program",               ARB_VERTEX_PROGRAM,             0                           },
    {"GL_ARB_vertex_shader",                ARB_VERTEX_SHADER,              0                           },
    {"GL_ARB_shader_objects",               ARB_SHADER_OBJECTS,             0                           },

    /* EXT */
    {"GL_EXT_blend_minmax",                 EXT_BLEND_MINMAX,               0                           },
    {"GL_EXT_fog_coord",                    EXT_FOG_COORD,                  0                           },
    {"GL_EXT_framebuffer_blit",             EXT_FRAMEBUFFER_BLIT,           0                           },
    {"GL_EXT_framebuffer_object",           EXT_FRAMEBUFFER_OBJECT,         0                           },
    {"GL_EXT_paletted_texture",             EXT_PALETTED_TEXTURE,           0                           },
    {"GL_EXT_point_parameters",             EXT_POINT_PARAMETERS,           0                           },
    {"GL_EXT_secondary_color",              EXT_SECONDARY_COLOR,            0                           },
    {"GL_EXT_stencil_two_side",             EXT_STENCIL_TWO_SIDE,           0                           },
    {"GL_EXT_stencil_wrap",                 EXT_STENCIL_WRAP,               0                           },
    {"GL_EXT_texture3D",                    EXT_TEXTURE3D,                  MAKEDWORD_VERSION(1, 2)     },
    {"GL_EXT_texture_compression_s3tc",     EXT_TEXTURE_COMPRESSION_S3TC,   0                           },
    {"GL_EXT_texture_env_add",              EXT_TEXTURE_ENV_ADD,            0                           },
    {"GL_EXT_texture_env_combine",          EXT_TEXTURE_ENV_COMBINE,        0                           },
    {"GL_EXT_texture_env_dot3",             EXT_TEXTURE_ENV_DOT3,           0                           },
    {"GL_EXT_texture_sRGB",                 EXT_TEXTURE_SRGB,               0                           },
    {"GL_EXT_texture_filter_anisotropic",   EXT_TEXTURE_FILTER_ANISOTROPIC, 0                           },
    {"GL_EXT_texture_lod",                  EXT_TEXTURE_LOD,                0                           },
    {"GL_EXT_texture_lod_bias",             EXT_TEXTURE_LOD_BIAS,           0                           },
    {"GL_EXT_vertex_shader",                EXT_VERTEX_SHADER,              0                           },
    {"GL_EXT_vertex_weighting",             EXT_VERTEX_WEIGHTING,           0                           },

    /* NV */
    {"GL_NV_half_float",                    NV_HALF_FLOAT,                  0                           },
    {"GL_NV_fence",                         NV_FENCE,                       0                           },
    {"GL_NV_fog_distance",                  NV_FOG_DISTANCE,                0                           },
    {"GL_NV_fragment_program",              NV_FRAGMENT_PROGRAM,            0                           },
    {"GL_NV_fragment_program2",             NV_FRAGMENT_PROGRAM2,           0                           },
    {"GL_NV_register_combiners",            NV_REGISTER_COMBINERS,          0                           },
    {"GL_NV_register_combiners2",           NV_REGISTER_COMBINERS2,         0                           },
    {"GL_NV_texgen_reflection",             NV_TEXGEN_REFLECTION,           0                           },
    {"GL_NV_texture_env_combine4",          NV_TEXTURE_ENV_COMBINE4,        0                           },
    {"GL_NV_texture_shader",                NV_TEXTURE_SHADER,              0                           },
    {"GL_NV_texture_shader2",               NV_TEXTURE_SHADER2,             0                           },
    {"GL_NV_texture_shader3",               NV_TEXTURE_SHADER3,             0                           },
    {"GL_NV_occlusion_query",               NV_OCCLUSION_QUERY,             0                           },
    {"GL_NV_vertex_program",                NV_VERTEX_PROGRAM,              0                           },
    {"GL_NV_vertex_program1_1",             NV_VERTEX_PROGRAM1_1,           0                           },
    {"GL_NV_vertex_program2",               NV_VERTEX_PROGRAM2,             0                           },
    {"GL_NV_vertex_program3",               NV_VERTEX_PROGRAM3,             0                           },
    {"GL_NV_depth_clamp",                   NV_DEPTH_CLAMP,                 0                           },

    /* SGI */
    {"GL_SGIS_generate_mipmap",             SGIS_GENERATE_MIPMAP,           0                           },
};

/**********************************************************
 * Utility functions follow
 **********************************************************/

/* Adapters */
static int numAdapters = 0;
static struct WineD3DAdapter Adapters[1];

/* lookup tables */
int minLookup[MAX_LOOKUPS];
int maxLookup[MAX_LOOKUPS];
DWORD *stateLookup[MAX_LOOKUPS];

DWORD minMipLookup[WINED3DTEXF_ANISOTROPIC + 1][WINED3DTEXF_LINEAR + 1];


/**
 * Note: GL seems to trap if GetDeviceCaps is called before any HWND's created
 * ie there is no GL Context - Get a default rendering context to enable the
 * function query some info from GL
 */

static int             wined3d_fake_gl_context_ref = 0;
static BOOL            wined3d_fake_gl_context_foreign;
static BOOL            wined3d_fake_gl_context_available = FALSE;
static HDC             wined3d_fake_gl_context_hdc = NULL;
static HWND            wined3d_fake_gl_context_hwnd = NULL;

static CRITICAL_SECTION wined3d_fake_gl_context_cs;
static CRITICAL_SECTION_DEBUG wined3d_fake_gl_context_cs_debug =
{
    0, 0, &wined3d_fake_gl_context_cs,
    { &wined3d_fake_gl_context_cs_debug.ProcessLocksList,
      &wined3d_fake_gl_context_cs_debug.ProcessLocksList },
    0, 0, { (DWORD_PTR)(__FILE__ ": wined3d_fake_gl_context_cs") }
};
static CRITICAL_SECTION wined3d_fake_gl_context_cs = { &wined3d_fake_gl_context_cs_debug, -1, 0, 0, 0, 0 };

static void WineD3D_ReleaseFakeGLContext(void) {
    HGLRC glCtx;

    EnterCriticalSection(&wined3d_fake_gl_context_cs);

    if(!wined3d_fake_gl_context_available) {
        TRACE_(d3d_caps)("context not available\n");
        LeaveCriticalSection(&wined3d_fake_gl_context_cs);
        return;
    }

    glCtx = pwglGetCurrentContext();

    TRACE_(d3d_caps)("decrementing ref from %i\n", wined3d_fake_gl_context_ref);
    if (0 == (--wined3d_fake_gl_context_ref) ) {
        if(!wined3d_fake_gl_context_foreign && glCtx) {
            TRACE_(d3d_caps)("destroying fake GL context\n");
            pwglMakeCurrent(NULL, NULL);
            pwglDeleteContext(glCtx);
        }
        if(wined3d_fake_gl_context_hdc)
            ReleaseDC(wined3d_fake_gl_context_hwnd, wined3d_fake_gl_context_hdc);
        wined3d_fake_gl_context_hdc = NULL; /* Make sure we don't think that it is still around */
        if(wined3d_fake_gl_context_hwnd)
            DestroyWindow(wined3d_fake_gl_context_hwnd);
        wined3d_fake_gl_context_hwnd = NULL;
        wined3d_fake_gl_context_available = FALSE;
    }
    assert(wined3d_fake_gl_context_ref >= 0);

    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
}

static BOOL WineD3D_CreateFakeGLContext(void) {
    HGLRC glCtx = NULL;

    EnterCriticalSection(&wined3d_fake_gl_context_cs);

    TRACE("getting context...\n");
    if(wined3d_fake_gl_context_ref > 0) goto ret;
    assert(0 == wined3d_fake_gl_context_ref);

    wined3d_fake_gl_context_foreign = TRUE;

    glCtx = pwglGetCurrentContext();
    if (!glCtx) {
        PIXELFORMATDESCRIPTOR pfd;
        int iPixelFormat;

        wined3d_fake_gl_context_foreign = FALSE;

        /* We need a fake window as a hdc retrieved using GetDC(0) can't be used for much GL purposes */
        wined3d_fake_gl_context_hwnd = CreateWindowA("WineD3D_OpenGL", "WineD3D fake window", WS_OVERLAPPEDWINDOW,        10, 10, 10, 10, NULL, NULL, NULL, NULL);
        if(!wined3d_fake_gl_context_hwnd) {
            ERR("HWND creation failed!\n");
            goto fail;
        }
        wined3d_fake_gl_context_hdc = GetDC(wined3d_fake_gl_context_hwnd);
        if(!wined3d_fake_gl_context_hdc) {
            ERR("GetDC failed!\n");
            goto fail;
        }

        /* PixelFormat selection */
        ZeroMemory(&pfd, sizeof(pfd));
        pfd.nSize      = sizeof(pfd);
        pfd.nVersion   = 1;
        pfd.dwFlags    = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
        pfd.iPixelType = PFD_TYPE_RGBA;
        pfd.cColorBits = 32;
        pfd.iLayerType = PFD_MAIN_PLANE;

        iPixelFormat = ChoosePixelFormat(wined3d_fake_gl_context_hdc, &pfd);
        if(!iPixelFormat) {
            /* If this happens something is very wrong as ChoosePixelFormat barely fails */
            ERR("Can't find a suitable iPixelFormat\n");
            goto fail;
        }
        DescribePixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, sizeof(pfd), &pfd);
        SetPixelFormat(wined3d_fake_gl_context_hdc, iPixelFormat, &pfd);

        /* Create a GL context */
        glCtx = pwglCreateContext(wined3d_fake_gl_context_hdc);
        if (!glCtx) {
            WARN_(d3d_caps)("Error creating default context for capabilities initialization\n");
            goto fail;
        }

        /* Make it the current GL context */
        if (!pwglMakeCurrent(wined3d_fake_gl_context_hdc, glCtx)) {
            WARN_(d3d_caps)("Error setting default context as current for capabilities initialization\n");
            goto fail;
        }
    }

  ret:
    TRACE("incrementing ref from %i\n", wined3d_fake_gl_context_ref);
    wined3d_fake_gl_context_ref++;
    wined3d_fake_gl_context_available = TRUE;
    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
    return TRUE;
  fail:
    if(wined3d_fake_gl_context_hdc)
        ReleaseDC(wined3d_fake_gl_context_hwnd, wined3d_fake_gl_context_hdc);
    wined3d_fake_gl_context_hdc = NULL;
    if(wined3d_fake_gl_context_hwnd)
        DestroyWindow(wined3d_fake_gl_context_hwnd);
    wined3d_fake_gl_context_hwnd = NULL;
    if(glCtx) pwglDeleteContext(glCtx);
    LeaveCriticalSection(&wined3d_fake_gl_context_cs);
    return FALSE;
}

/* Adjust the amount of used texture memory */
long WineD3DAdapterChangeGLRam(IWineD3DDeviceImpl *D3DDevice, long glram){
    UINT Adapter = D3DDevice->adapterNo;

    Adapters[Adapter].UsedTextureRam += glram;
    TRACE("Adjusted gl ram by %ld to %d\n", glram, Adapters[Adapter].UsedTextureRam);
    return Adapters[Adapter].UsedTextureRam;
}

/**********************************************************
 * IUnknown parts follows
 **********************************************************/

static HRESULT WINAPI IWineD3DImpl_QueryInterface(IWineD3D *iface,REFIID riid,LPVOID *ppobj)
{
    IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;

    TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IWineD3DBase)
        || IsEqualGUID(riid, &IID_IWineD3DDevice)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }
    *ppobj = NULL;
    return E_NOINTERFACE;
}

static ULONG WINAPI IWineD3DImpl_AddRef(IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    ULONG refCount = InterlockedIncrement(&This->ref);

    TRACE("(%p) : AddRef increasing from %d\n", This, refCount - 1);
    return refCount;
}

static ULONG WINAPI IWineD3DImpl_Release(IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    ULONG ref;
    TRACE("(%p) : Releasing from %d\n", This, This->ref);
    ref = InterlockedDecrement(&This->ref);
    if (ref == 0) {
        HeapFree(GetProcessHeap(), 0, This);
    }

    return ref;
}

/* Set the shader type for this device, depending on the given capabilities,
 * the device type, and the user preferences in wined3d_settings */

static void select_shader_mode(
    WineD3D_GL_Info *gl_info,
    WINED3DDEVTYPE DeviceType,
    int* ps_selected,
    int* vs_selected) {

    if (wined3d_settings.vs_mode == VS_NONE) {
        *vs_selected = SHADER_NONE;
    } else if (gl_info->supported[ARB_VERTEX_SHADER] && wined3d_settings.glslRequested) {
        /* Geforce4 cards support GLSL but for vertex shaders only. Further its reported GLSL caps are
         * wrong. This combined with the fact that glsl won't offer more features or performance, use ARB
         * shaders only on this card. */
        if(gl_info->vs_nv_version && gl_info->vs_nv_version < VS_VERSION_20)
            *vs_selected = SHADER_ARB;
        else
            *vs_selected = SHADER_GLSL;
    } else if (gl_info->supported[ARB_VERTEX_PROGRAM]) {
        *vs_selected = SHADER_ARB;
    } else {
        *vs_selected = SHADER_NONE;
    }

    if (wined3d_settings.ps_mode == PS_NONE) {
        *ps_selected = SHADER_NONE;
    } else if (gl_info->supported[ARB_FRAGMENT_SHADER] && wined3d_settings.glslRequested) {
        *ps_selected = SHADER_GLSL;
    } else if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
        *ps_selected = SHADER_ARB;
    } else {
        *ps_selected = SHADER_NONE;
    }
}

/** Select the number of report maximum shader constants based on the selected shader modes */
static void select_shader_max_constants(
    int ps_selected_mode,
    int vs_selected_mode,
    WineD3D_GL_Info *gl_info) {

    switch (vs_selected_mode) {
        case SHADER_GLSL:
            /* Subtract the other potential uniforms from the max available (bools, ints, and 1 row of projection matrix) */
            gl_info->max_vshader_constantsF = gl_info->vs_glsl_constantsF - (MAX_CONST_B / 4) - MAX_CONST_I - 1;
            break;
        case SHADER_ARB:
            /* We have to subtract any other PARAMs that we might use in our shader programs.
             * ATI seems to count 2 implicit PARAMs when we use fog and NVIDIA counts 1,
             * and we reference one row of the PROJECTION matrix which counts as 1 PARAM. */
            gl_info->max_vshader_constantsF = gl_info->vs_arb_constantsF - 3;
            break;
        default:
            gl_info->max_vshader_constantsF = 0;
            break;
    }

    switch (ps_selected_mode) {
        case SHADER_GLSL:
            /* Subtract the other potential uniforms from the max available (bools & ints), and 2 states for fog.
             * In theory the texbem instruction may need one more shader constant too. But lets assume
             * that a sm <= 1.3 shader does not need all the uniforms provided by a glsl-capable card,
             * and lets not take away a uniform needlessly from all other shaders.
             */
            gl_info->max_pshader_constantsF = gl_info->ps_glsl_constantsF - (MAX_CONST_B / 4) - MAX_CONST_I - 2;
            break;
        case SHADER_ARB:
            /* The arb shader only loads the bump mapping environment matrix into the shader if it finds
             * a free constant to do that, so only reduce the number of available constants by 2 for the fog states.
             */
            gl_info->max_pshader_constantsF = gl_info->ps_arb_constantsF - 2;
            break;
        default:
            gl_info->max_pshader_constantsF = 0;
            break;
    }
}

/**********************************************************
 * IWineD3D parts follows
 **********************************************************/

#define GLINFO_LOCATION (*gl_info)
static inline BOOL test_arb_vs_offset_limit(WineD3D_GL_Info *gl_info) {
    GLuint prog;
    BOOL ret = FALSE;
    const char *testcode =
        "!!ARBvp1.0\n"
        "PARAM C[66] = { program.env[0..65] };\n"
        "ADDRESS A0;"
        "ARL A0.x, 0.0;\n"
        "MOV result.position, C[A0.x + 65];\n"
        "END\n";

    while(glGetError());
    GL_EXTCALL(glGenProgramsARB(1, &prog));
    if(!prog) {
        ERR("Failed to create an ARB offset limit test program\n");
    }
    GL_EXTCALL(glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prog));
    GL_EXTCALL(glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
                                  strlen(testcode), testcode));
    if(glGetError() != 0) {
        TRACE("OpenGL implementation does not allow indirect addressing offsets > 63\n");
        TRACE("error: %s\n", debugstr_a((const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)));
        ret = TRUE;
    } else TRACE("OpenGL implementation allows offsets > 63\n");

    GL_EXTCALL(glBindProgramARB(GL_VERTEX_PROGRAM_ARB, 0));
    GL_EXTCALL(glDeleteProgramsARB(1, &prog));
    checkGLcall("ARB vp offset limit test cleanup\n");

    return ret;
}

static DWORD ver_for_ext(GL_SupportedExt ext)
{
    unsigned int i;
    for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
        if(EXTENSION_MAP[i].extension == ext) {
            return EXTENSION_MAP[i].version;
        }
    }
    return 0;
}

BOOL IWineD3DImpl_FillGLCaps(WineD3D_GL_Info *gl_info) {
    const char *GL_Extensions    = NULL;
    const char *WGL_Extensions   = NULL;
    const char *gl_string        = NULL;
    const char *gl_string_cursor = NULL;
    GLint       gl_max;
    GLfloat     gl_floatv[2];
    int         major = 1, minor = 0;
    BOOL        return_value = TRUE;
    int         i;
    HDC         hdc;
    unsigned int vidmem=0;

    TRACE_(d3d_caps)("(%p)\n", gl_info);

    ENTER_GL();

    gl_string = (const char *) glGetString(GL_RENDERER);
    if (NULL == gl_string)
	gl_string = "None";
    strcpy(gl_info->gl_renderer, gl_string);

    gl_string = (const char *) glGetString(GL_VENDOR);
    TRACE_(d3d_caps)("Filling vendor string %s\n", gl_string);
    if (gl_string != NULL) {
        /* Fill in the GL vendor */
        if (strstr(gl_string, "NVIDIA")) {
            gl_info->gl_vendor = VENDOR_NVIDIA;
        } else if (strstr(gl_string, "ATI")) {
            gl_info->gl_vendor = VENDOR_ATI;
        } else if (strstr(gl_string, "Intel(R)") || 
		   strstr(gl_info->gl_renderer, "Intel(R)")) {
            gl_info->gl_vendor = VENDOR_INTEL;
        } else if (strstr(gl_string, "Mesa")) {
            gl_info->gl_vendor = VENDOR_MESA;
        } else {
            gl_info->gl_vendor = VENDOR_WINE;
        }
    } else {
        gl_info->gl_vendor = VENDOR_WINE;
    }


    TRACE_(d3d_caps)("found GL_VENDOR (%s)->(0x%04x)\n", debugstr_a(gl_string), gl_info->gl_vendor);

    /* Parse the GL_VERSION field into major and minor information */
    gl_string = (const char *) glGetString(GL_VERSION);
    if (gl_string != NULL) {

        switch (gl_info->gl_vendor) {
        case VENDOR_NVIDIA:
            gl_string_cursor = strstr(gl_string, "NVIDIA");
            if (!gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            gl_string_cursor = strstr(gl_string_cursor, " ");
            if (!gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            while (*gl_string_cursor == ' ') {
                ++gl_string_cursor;
            }

            if (!*gl_string_cursor) {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            major = atoi(gl_string_cursor);
            while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                ++gl_string_cursor;
            }

            if (*gl_string_cursor++ != '.') {
                ERR_(d3d_caps)("Invalid nVidia version string: %s\n", debugstr_a(gl_string));
                break;
            }

            minor = atoi(gl_string_cursor);
            minor = major*100+minor;
            major = 10;

            break;

        case VENDOR_ATI:
            major = minor = 0;
            gl_string_cursor = strchr(gl_string, '-');
            if (gl_string_cursor) {
                int error = 0;
                gl_string_cursor++;

                /* Check if version number is of the form x.y.z */
                if (*gl_string_cursor > '9' && *gl_string_cursor < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+2) > '9' && *(gl_string_cursor+2) < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+4) > '9' && *(gl_string_cursor+4) < '0')
                    error = 1;
                if (!error && *(gl_string_cursor+1) != '.' && *(gl_string_cursor+3) != '.')
                    error = 1;

                /* Mark version number as malformed */
                if (error)
                    gl_string_cursor = 0;
            }

            if (!gl_string_cursor)
                WARN_(d3d_caps)("malformed GL_VERSION (%s)\n", debugstr_a(gl_string));
            else {
                major = *gl_string_cursor - '0';
                minor = (*(gl_string_cursor+2) - '0') * 256 + (*(gl_string_cursor+4) - '0');
            }
            break;

	case VENDOR_INTEL:
        case VENDOR_MESA:
            gl_string_cursor = strstr(gl_string, "Mesa");
            gl_string_cursor = strstr(gl_string_cursor, " ");
            while (*gl_string_cursor && ' ' == *gl_string_cursor) ++gl_string_cursor;
            if (*gl_string_cursor) {
                char tmp[16];
                int cursor = 0;

                while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                    tmp[cursor++] = *gl_string_cursor;
                    ++gl_string_cursor;
                }
                tmp[cursor] = 0;
                major = atoi(tmp);

                if (*gl_string_cursor != '.') WARN_(d3d_caps)("malformed GL_VERSION (%s)\n", debugstr_a(gl_string));
                ++gl_string_cursor;

                cursor = 0;
                while (*gl_string_cursor <= '9' && *gl_string_cursor >= '0') {
                    tmp[cursor++] = *gl_string_cursor;
                    ++gl_string_cursor;
                }
                tmp[cursor] = 0;
                minor = atoi(tmp);
            }
            break;

        default:
            major = 0;
            minor = 9;
        }
        gl_info->gl_driver_version = MAKEDWORD_VERSION(major, minor);
        TRACE_(d3d_caps)("found GL_VERSION  (%s)->%i.%i->(0x%08x)\n", debugstr_a(gl_string), major, minor, gl_info->gl_driver_version);
    }

    TRACE_(d3d_caps)("found GL_RENDERER (%s)->(0x%04x)\n", debugstr_a(gl_info->gl_renderer), gl_info->gl_card);

    /*
     * Initialize openGL extension related variables
     *  with Default values
     */
    memset(&gl_info->supported, 0, sizeof(gl_info->supported));
    gl_info->max_buffers        = 1;
    gl_info->max_textures       = 1;
    gl_info->max_texture_stages = 1;
    gl_info->max_fragment_samplers = 1;
    gl_info->max_vertex_samplers = 0;
    gl_info->max_combined_samplers = 0;
    gl_info->max_sampler_stages = 1;
    gl_info->ps_arb_version = PS_VERSION_NOT_SUPPORTED;
    gl_info->ps_arb_max_temps = 0;
    gl_info->ps_arb_max_instructions = 0;
    gl_info->vs_arb_version = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_arb_max_temps = 0;
    gl_info->vs_arb_max_instructions = 0;
    gl_info->vs_nv_version  = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_ati_version = VS_VERSION_NOT_SUPPORTED;
    gl_info->vs_glsl_constantsF = 0;
    gl_info->ps_glsl_constantsF = 0;
    gl_info->vs_arb_constantsF = 0;
    gl_info->ps_arb_constantsF = 0;

    /* Retrieve opengl defaults */
    glGetIntegerv(GL_MAX_CLIP_PLANES, &gl_max);
    gl_info->max_clipplanes = min(WINED3DMAXUSERCLIPPLANES, gl_max);
    TRACE_(d3d_caps)("ClipPlanes support - num Planes=%d\n", gl_max);

    glGetIntegerv(GL_MAX_LIGHTS, &gl_max);
    gl_info->max_lights = gl_max;
    TRACE_(d3d_caps)("Lights support - max lights=%d\n", gl_max);

    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max);
    gl_info->max_texture_size = gl_max;
    TRACE_(d3d_caps)("Maximum texture size support - max texture size=%d\n", gl_max);

    glGetFloatv(GL_POINT_SIZE_RANGE, gl_floatv);
    gl_info->max_pointsizemin = gl_floatv[0];
    gl_info->max_pointsize = gl_floatv[1];
    TRACE_(d3d_caps)("Maximum point size support - max point size=%f\n", gl_floatv[1]);

    glGetIntegerv(GL_AUX_BUFFERS, &gl_max);
    gl_info->max_aux_buffers = gl_max;
    TRACE_(d3d_caps)("Offscreen rendering support - number of aux buffers=%d\n", gl_max);

    /* Parse the gl supported features, in theory enabling parts of our code appropriately */
    GL_Extensions = (const char *) glGetString(GL_EXTENSIONS);
    TRACE_(d3d_caps)("GL_Extensions reported:\n");

    if (NULL == GL_Extensions) {
        ERR("   GL_Extensions returns NULL\n");
    } else {
        while (*GL_Extensions != 0x00) {
            const char *Start;
            char        ThisExtn[256];
            size_t      len;

            while (isspace(*GL_Extensions)) GL_Extensions++;
            Start = GL_Extensions;
            while (!isspace(*GL_Extensions) && *GL_Extensions != 0x00) {
                GL_Extensions++;
            }

            len = GL_Extensions - Start;
            if (len == 0 || len >= sizeof(ThisExtn))
                continue;

            memcpy(ThisExtn, Start, len);
            ThisExtn[len] = '\0';
            TRACE_(d3d_caps)("- %s\n", ThisExtn);

            for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
                if (!strcmp(ThisExtn, EXTENSION_MAP[i].extension_string)) {
                    TRACE_(d3d_caps)(" FOUND: %s support\n", EXTENSION_MAP[i].extension_string);
                    gl_info->supported[EXTENSION_MAP[i].extension] = TRUE;
                    break;
                }
            }
        }
        /* Now work out what GL support this card really has */
#define USE_GL_FUNC(type, pfn, ext, replace) { \
            DWORD ver = ver_for_ext(ext); \
            if(gl_info->supported[ext]) gl_info->pfn = (type) pwglGetProcAddress(#pfn); \
            else if(ver && ver <= gl_info->gl_driver_version) gl_info->pfn = (type) pwglGetProcAddress(#replace); \
            else gl_info->pfn = NULL; \
        }
        GL_EXT_FUNCS_GEN;
#undef USE_GL_FUNC

#define USE_GL_FUNC(type, pfn, ext, replace) gl_info->pfn = (type) pwglGetProcAddress(#pfn);
        WGL_EXT_FUNCS_GEN;
#undef USE_GL_FUNC

        /* Now mark all the extensions supported which are included in the opengl core version. Do this *after*
         * loading the functions, otherwise the code above will load the extension entry points instead of the
         * core functions, which may not work
         */
        for (i = 0; i < (sizeof(EXTENSION_MAP) / sizeof(*EXTENSION_MAP)); ++i) {
            if (gl_info->supported[EXTENSION_MAP[i].extension] == FALSE &&
                EXTENSION_MAP[i].version <= gl_info->gl_driver_version && EXTENSION_MAP[i].version) {
                TRACE_(d3d_caps)(" GL CORE: %s support\n", EXTENSION_MAP[i].extension_string);
                gl_info->supported[EXTENSION_MAP[i].extension] = TRUE;
            }
        }

        if (gl_info->supported[APPLE_FENCE]) {
            /* GL_NV_fence and GL_APPLE_fence provide the same functionality basically.
             * The apple extension interacts with some other apple exts. Disable the NV
             * extension if the apple one is support to prevent confusion in other parts
             * of the code
             */
            gl_info->supported[NV_FENCE] = FALSE;
        }
        if (gl_info->supported[ARB_TEXTURE_CUBE_MAP]) {
            TRACE_(d3d_caps)(" IMPLIED: NVIDIA (NV) Texture Gen Reflection support\n");
            gl_info->supported[NV_TEXGEN_REFLECTION] = TRUE;
        }
        if (gl_info->supported[NV_TEXTURE_SHADER2]) {
            /* GL_ATI_envmap_bumpmap won't play nice with texture shaders, so disable it
             * Won't occur in any real world situation though
             */
            gl_info->supported[ATI_ENVMAP_BUMPMAP] = FALSE;
        }
        if (gl_info->supported[ARB_DRAW_BUFFERS]) {
            glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &gl_max);
            gl_info->max_buffers = gl_max;
            TRACE_(d3d_caps)("Max draw buffers: %u\n", gl_max);
        }
        if (gl_info->supported[ARB_MULTITEXTURE]) {
            glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_max);
            gl_info->max_textures = min(MAX_TEXTURES, gl_max);
            TRACE_(d3d_caps)("Max textures: %d\n", gl_info->max_textures);

            if (gl_info->supported[NV_REGISTER_COMBINERS]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_GENERAL_COMBINERS_NV, &tmp);
                gl_info->max_texture_stages = min(MAX_TEXTURES, tmp);
            } else {
                gl_info->max_texture_stages = min(MAX_TEXTURES, gl_max);
            }
            TRACE_(d3d_caps)("Max texture stages: %d\n", gl_info->max_texture_stages);

            if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_fragment_samplers = min(8, tmp);
            } else {
                gl_info->max_fragment_samplers = max(gl_info->max_fragment_samplers, gl_max);
            }
            TRACE_(d3d_caps)("Max fragment samplers: %d\n", gl_info->max_fragment_samplers);

            if (gl_info->supported[ARB_VERTEX_SHADER]) {
                GLint tmp;
                glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_vertex_samplers = tmp;
                glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, &tmp);
                gl_info->max_combined_samplers = tmp;

                /* Loading GLSL sampler uniforms is much simpler if we can assume that the sampler setup
                 * is known at shader link time. In a vertex shader + pixel shader combination this isn't
                 * an issue because then the sampler setup only depends on the two shaders. If a pixel
                 * shader is used with fixed function vertex processing we're fine too because fixed function
                 * vertex processing doesn't use any samplers. If fixed function fragment processing is
                 * used we have to make sure that all vertex sampler setups are valid together with all
                 * possible fixed function fragment processing setups. This is true if vsamplers + MAX_TEXTURES
                 * <= max_samplers. This is true on all d3d9 cards that support vtf(gf 6 and gf7 cards).
                 * dx9 radeon cards do not support vertex texture fetch. DX10 cards have 128 samplers, and
                 * dx9 is limited to 8 fixed function texture stages and 4 vertex samplers. DX10 does not have
                 * a fixed function pipeline anymore.
                 *
                 * So this is just a check to check that our assumption holds true. If not, write a warning
                 * and reduce the number of vertex samplers or propably disable vertex texture fetch.
                 */
                if(gl_info->max_vertex_samplers &&
                   MAX_TEXTURES + gl_info->max_vertex_samplers > gl_info->max_combined_samplers) {
                    FIXME("OpenGL implementation supports %u vertex samplers and %u total samplers\n",
                          gl_info->max_vertex_samplers, gl_info->max_combined_samplers);
                    FIXME("Expected vertex samplers + MAX_TEXTURES(=8) > combined_samplers\n");
                    gl_info->max_vertex_samplers = max(0, gl_info->max_combined_samplers - MAX_TEXTURES);
                }
            } else {
                gl_info->max_combined_samplers = gl_info->max_fragment_samplers;
            }
            TRACE_(d3d_caps)("Max vertex samplers: %u\n", gl_info->max_vertex_samplers);
            TRACE_(d3d_caps)("Max combined samplers: %u\n", gl_info->max_combined_samplers);
        }
        if (gl_info->supported[ARB_VERTEX_BLEND]) {
            glGetIntegerv(GL_MAX_VERTEX_UNITS_ARB, &gl_max);
            gl_info->max_blends = gl_max;
            TRACE_(d3d_caps)("Max blends: %u\n", gl_info->max_blends);
        }
        if (gl_info->supported[EXT_TEXTURE3D]) {
            glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE_EXT, &gl_max);
            gl_info->max_texture3d_size = gl_max;
            TRACE_(d3d_caps)("Max texture3D size: %d\n", gl_info->max_texture3d_size);
        }
        if (gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC]) {
            glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max);
            gl_info->max_anisotropy = gl_max;
            TRACE_(d3d_caps)("Max anisotropy: %d\n", gl_info->max_anisotropy);
        }
        if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) {
            gl_info->ps_arb_version = PS_VERSION_11;
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &gl_max));
            gl_info->ps_arb_constantsF = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM float constants: %d\n", gl_info->ps_arb_constantsF);
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, &gl_max));
            gl_info->ps_arb_max_temps = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM native temporaries: %d\n", gl_info->ps_arb_max_temps);
            GL_EXTCALL(glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, &gl_max));
            gl_info->ps_arb_max_instructions = gl_max;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_PROGRAM native instructions: %d\n", gl_info->ps_arb_max_instructions);
        }
        if (gl_info->supported[ARB_VERTEX_PROGRAM]) {
            gl_info->vs_arb_version = VS_VERSION_11;
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &gl_max));
            gl_info->vs_arb_constantsF = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM float constants: %d\n", gl_info->vs_arb_constantsF);
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, &gl_max));
            gl_info->vs_arb_max_temps = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM native temporaries: %d\n", gl_info->vs_arb_max_temps);
            GL_EXTCALL(glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, &gl_max));
            gl_info->vs_arb_max_instructions = gl_max;
            TRACE_(d3d_caps)("Max ARB_VERTEX_PROGRAM native instructions: %d\n", gl_info->vs_arb_max_instructions);

            gl_info->arb_vs_offset_limit = test_arb_vs_offset_limit(gl_info);
        }
        if (gl_info->supported[ARB_VERTEX_SHADER]) {
            glGetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, &gl_max);
            gl_info->vs_glsl_constantsF = gl_max / 4;
            TRACE_(d3d_caps)("Max ARB_VERTEX_SHADER float constants: %u\n", gl_info->vs_glsl_constantsF);
        }
        if (gl_info->supported[ARB_FRAGMENT_SHADER]) {
            glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, &gl_max);
            gl_info->ps_glsl_constantsF = gl_max / 4;
            TRACE_(d3d_caps)("Max ARB_FRAGMENT_SHADER float constants: %u\n", gl_info->ps_glsl_constantsF);
            glGetIntegerv(GL_MAX_VARYING_FLOATS_ARB, &gl_max);
            gl_info->max_glsl_varyings = gl_max;
            TRACE_(d3d_caps)("Max GLSL varyings: %u (%u 4 component varyings)\n", gl_max, gl_max / 4);
        }
        if (gl_info->supported[EXT_VERTEX_SHADER]) {
            gl_info->vs_ati_version = VS_VERSION_11;
        }
        if (gl_info->supported[NV_VERTEX_PROGRAM3]) {
            gl_info->vs_nv_version = VS_VERSION_30;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM2]) {
            gl_info->vs_nv_version = VS_VERSION_20;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM1_1]) {
            gl_info->vs_nv_version = VS_VERSION_11;
        } else if (gl_info->supported[NV_VERTEX_PROGRAM]) {
            gl_info->vs_nv_version = VS_VERSION_10;
        }
        if (gl_info->supported[NV_FRAGMENT_PROGRAM2]) {
            gl_info->ps_nv_version = PS_VERSION_30;
        } else if (gl_info->supported[NV_FRAGMENT_PROGRAM]) {
            gl_info->ps_nv_version = PS_VERSION_20;
        }

    }
    checkGLcall("extension detection\n");

    /* In some cases the number of texture stages can be larger than the number
     * of samplers. The GF4 for example can use only 2 samplers (no fragment
     * shaders), but 8 texture stages (register combiners). */
    gl_info->max_sampler_stages = max(gl_info->max_fragment_samplers, gl_info->max_texture_stages);

    /* We can only use ORM_FBO when the hardware supports it. */
    if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && !gl_info->supported[EXT_FRAMEBUFFER_OBJECT]) {
        WARN_(d3d_caps)("GL_EXT_framebuffer_object not supported, falling back to PBuffer offscreen rendering mode.\n");
        wined3d_settings.offscreen_rendering_mode = ORM_PBUFFER;
    }

    /* MRTs are currently only supported when FBOs are used. */
    if (wined3d_settings.offscreen_rendering_mode != ORM_FBO) {
        gl_info->max_buffers = 1;
    }

    /* Below is a list of Nvidia and ATI GPUs. Both vendors have dozens of different GPUs with roughly the same
     * features. In most cases GPUs from a certain family differ in clockspeeds, the amount of video memory and
     * in case of the latest videocards in the number of pixel/vertex pipelines.
     *
     * A Direct3D device object contains the PCI id (vendor + device) of the videocard which is used for
     * rendering. Various games use this information to get a rough estimation of the features of the card
     * and some might use it for enabling 3d effects only on certain types of videocards. In some cases
     * games might even use it to work around bugs which happen on certain videocards/driver combinations.
     * The problem is that OpenGL only exposes a rendering string containing the name of the videocard and
     * not the PCI id.
     *
     * Various games depend on the PCI id, so somehow we need to provide one. A simple option is to parse
     * the renderer string and translate this to the right PCI id. This is a lot of work because there are more
     * than 200 GPUs just for Nvidia. Various cards share the same renderer string, so the amount of code might
     * be 'small' but there are quite a number of exceptions which would make this a pain to maintain.
     * Another way would be to query the PCI id from the operating system (assuming this is the videocard which
     * is used for rendering which is not always the case). This would work but it is not very portable. Second
     * it would not work well in, let's say, a remote X situation in which the amount of 3d features which can be used
     * is limited.
     *
     * As said most games only use the PCI id to get an indication of the capabilities of the card.
     * It doesn't really matter if the given id is the correct one if we return the id of a card with
     * similar 3d features.
     *
     * The code below checks the OpenGL capabilities of a videocard and matches that to a certain level of
     * Direct3D functionality. Once a card passes the Direct3D9 check, we know that the card (in case of Nvidia)
     * is at least a GeforceFX. To give a better estimate we do a basic check on the renderer string but if that
     * won't pass we return a default card. This way is better than maintaining a full card database as even
     * without a full database we can return a card with similar features. Second the size of the database
     * can be made quite small because when you know what type of 3d functionality a card has, you know to which
     * GPU family the GPU must belong. Because of this you only have to check a small part of the renderer string
     * to distinguishes between different models from that family.
     *
     * The code also selects a default amount of video memory which we will use for an estimation of the amount
     * of free texture memory. In case of real D3D the amount of texture memory includes video memory and system
     * memory (to be specific AGP memory or in case of PCIE TurboCache/HyperMemory). We don't know how much
     * system memory can be addressed by the system but we can make a reasonable estimation about the amount of
     * video memory. If the value is slightly wrong it doesn't matter as we didn't include AGP-like memory which
     * makes the amount of addressable memory higher and second OpenGL isn't that critical it moves to system
     * memory behind our backs if really needed.
     * Note that the amout of video memory can be overruled using a registry setting.
     */
    switch (gl_info->gl_vendor) {
        case VENDOR_NVIDIA:
            /* Both the GeforceFX, 6xxx and 7xxx series support D3D9. The last two types have more
             * shader capabilities, so we use the shader capabilities to distinguish between FX and 6xxx/7xxx.
             */
            if(WINE_D3D9_CAPABLE(gl_info) && (gl_info->vs_nv_version == VS_VERSION_30)) {
                /* Geforce8 - highend */
                if (strstr(gl_info->gl_renderer, "8800")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8800GTS;
                    vidmem = 320; /* The 8800GTS uses 320MB, a 8800GTX can have 768MB */
                }
                /* Geforce8 - midend */
                else if(strstr(gl_info->gl_renderer, "8600") ||
                        strstr(gl_info->gl_renderer, "8700"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8600GT;
                    vidmem = 256;
                }
                /* Geforce8 - lowend */
                else if(strstr(gl_info->gl_renderer, "8300") ||
                        strstr(gl_info->gl_renderer, "8400") ||
                        strstr(gl_info->gl_renderer, "8500"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_8300GS;
                    vidmem = 128; /* 128-256MB for a 8300, 256-512MB for a 8400 */
                }
                /* Geforce7 - highend */
                else if(strstr(gl_info->gl_renderer, "7800") ||
                        strstr(gl_info->gl_renderer, "7900") ||
                        strstr(gl_info->gl_renderer, "7950") ||
                        strstr(gl_info->gl_renderer, "Quadro FX 4") ||
                        strstr(gl_info->gl_renderer, "Quadro FX 5"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_7800GT;
                    vidmem = 256; /* A 7800GT uses 256MB while highend 7900 cards can use 512MB */
                }
                /* Geforce7 midend / Geforce6 highend */
                else if(strstr(gl_info->gl_renderer, "6800") ||
                        strstr(gl_info->gl_renderer, "7600") ||
                        strstr(gl_info->gl_renderer, "7700"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6800;
                    vidmem = 128; /* The 6800 uses 128-256MB, the 7600 uses 256-512MB */
                }
                /* Geforce6 - midend */
                else if(strstr(gl_info->gl_renderer, "6600") ||
                        strstr(gl_info->gl_renderer, "6610") ||
                        strstr(gl_info->gl_renderer, "6700"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6600GT;
                    vidmem = 128; /* A 6600GT has 128-256MB */
                }
                /* Geforce6/7 lowend */
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE_6200; /* Geforce 6100/6150/6200/7300/7400/7500 */
                    vidmem = 64; /* */
                }
            } else if(WINE_D3D9_CAPABLE(gl_info)) {
                /* GeforceFX - highend */
                if (strstr(gl_info->gl_renderer, "5800") ||
                    strstr(gl_info->gl_renderer, "5900") ||
                    strstr(gl_info->gl_renderer, "5950") ||
                    strstr(gl_info->gl_renderer, "Quadro FX"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5800;
                    vidmem = 256; /* 5800-5900 cards use 256MB */
                }
                /* GeforceFX - midend */
                else if(strstr(gl_info->gl_renderer, "5600") ||
                        strstr(gl_info->gl_renderer, "5650") ||
                        strstr(gl_info->gl_renderer, "5700") ||
                        strstr(gl_info->gl_renderer, "5750"))
                {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5600;
                    vidmem = 128; /* A 5600 uses 128-256MB */
                }
                /* GeforceFX - lowend */
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5200; /* GeforceFX 5100/5200/5250/5300/5500 */
                    vidmem = 64; /* Normal FX5200 cards use 64-256MB; laptop (non-standard) can have less */
                }
            } else if(WINE_D3D8_CAPABLE(gl_info)) {
                if (strstr(gl_info->gl_renderer, "GeForce4 Ti") || strstr(gl_info->gl_renderer, "Quadro4")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE4_TI4200; /* Geforce4 Ti4200/Ti4400/Ti4600/Ti4800, Quadro4 */
                    vidmem = 64; /* Geforce4 Ti cards have 64-128MB */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE3; /* Geforce3 standard/Ti200/Ti500, Quadro DCC */
                    vidmem = 64; /* Geforce3 cards have 64-128MB */
                }
            } else if(WINE_D3D7_CAPABLE(gl_info)) {
                if (strstr(gl_info->gl_renderer, "GeForce4 MX")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE4_MX; /* MX420/MX440/MX460/MX4000 */
                    vidmem = 64; /* Most Geforce4MX GPUs have at least 64MB of memory, some early models had 32MB but most have 64MB or even 128MB */
                }
                else if(strstr(gl_info->gl_renderer, "GeForce2 MX") || strstr(gl_info->gl_renderer, "Quadro2 MXR")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE2_MX; /* Geforce2 standard/MX100/MX200/MX400, Quadro2 MXR */
                    vidmem = 32; /* Geforce2MX GPUs have 32-64MB of video memory */
                }
                else if(strstr(gl_info->gl_renderer, "GeForce2") || strstr(gl_info->gl_renderer, "Quadro2")) {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE2; /* Geforce2 GTS/Pro/Ti/Ultra, Quadro2 */
                    vidmem = 32; /* Geforce2 GPUs have 32-64MB of video memory */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_GEFORCE; /* Geforce 256/DDR, Quadro */
                    vidmem = 32; /* Most Geforce1 cards have 32MB, there are also some rare 16 and 64MB (Dell) models */
                }
            } else {
                if (strstr(gl_info->gl_renderer, "TNT2")) {
                    gl_info->gl_card = CARD_NVIDIA_RIVA_TNT2; /* Riva TNT2 standard/M64/Pro/Ultra */
                    vidmem = 32; /* Most TNT2 boards have 32MB, though there are 16MB boards too */
                }
                else {
                    gl_info->gl_card = CARD_NVIDIA_RIVA_TNT; /* Riva TNT, Vanta */
                    vidmem = 16; /* Most TNT boards have 16MB, some rare models have 8MB */
                }
            }
            break;
        case VENDOR_ATI:
            if(WINE_D3D9_CAPABLE(gl_info)) {
                /* Radeon R6xx HD2900 - highend */
                if (strstr(gl_info->gl_renderer, "HD 2900")) {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2900;
                    vidmem = 512; /* HD2900 uses 512-1024MB */
                }
                /* Radeon R6xx HD2600- midend */
                else if (strstr(gl_info->gl_renderer, "HD 2600")) {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2600;
                    vidmem = 256; /* HD2600 uses 256-512MB */
                }
                /* Radeon R6xx HD2300/HD2400 - lowend */
                else if (strstr(gl_info->gl_renderer, "HD 2300") ||
                         strstr(gl_info->gl_renderer, "HD 2400"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_HD2300;
                    vidmem = 128; /* HD2300 uses at least 128MB, HD2400 uses 256MB */
                }
                /* Radeon R5xx */
                else if (strstr(gl_info->gl_renderer, "X1600") ||
                         strstr(gl_info->gl_renderer, "X1650") ||
                         strstr(gl_info->gl_renderer, "X1800") ||
                         strstr(gl_info->gl_renderer, "X1900") ||
                         strstr(gl_info->gl_renderer, "X1950"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_X1600;
                    vidmem = 128; /* X1600 uses 128-256MB, >=X1800 uses 256MB */
                }
                /* Radeon R4xx + X1300/X1400/X1450/X1550/X2300 (lowend R5xx) */
                else if(strstr(gl_info->gl_renderer, "X700") ||
                        strstr(gl_info->gl_renderer, "X800") ||
                        strstr(gl_info->gl_renderer, "X850") ||
                        strstr(gl_info->gl_renderer, "X1300") ||
                        strstr(gl_info->gl_renderer, "X1400") ||
                        strstr(gl_info->gl_renderer, "X1450") ||
                        strstr(gl_info->gl_renderer, "X1550"))
                {
                    gl_info->gl_card = CARD_ATI_RADEON_X700;
                    vidmem = 128; /* x700/x8*0 use 128-256MB, >=x1300 128-512MB */
                }
                /* Radeon R3xx */ 
                else {
                    gl_info->gl_card = CARD_ATI_RADEON_9500; /* Radeon 9500/9550/9600/9700/9800/X300/X550/X600 */
                    vidmem = 64; /* Radeon 9500 uses 64MB, higher models use up to 256MB */
                }
            } else if(WINE_D3D8_CAPABLE(gl_info)) {
                gl_info->gl_card = CARD_ATI_RADEON_8500; /* Radeon 8500/9000/9100/9200/9300 */
                vidmem = 64; /* 8500/9000 cards use mostly 64MB, though there are 32MB and 128MB models */
            } else if(WINE_D3D7_CAPABLE(gl_info)) {
                gl_info->gl_card = CARD_ATI_RADEON_7200; /* Radeon 7000/7100/7200/7500 */
                vidmem = 32; /* There are models with up to 64MB */
            } else {
                gl_info->gl_card = CARD_ATI_RAGE_128PRO;
                vidmem = 16; /* There are 16-32MB models */
            }
            break;
        case VENDOR_INTEL:
            if (strstr(gl_info->gl_renderer, "915GM")) {
                gl_info->gl_card = CARD_INTEL_I915GM;
            } else if (strstr(gl_info->gl_renderer, "915G")) {
                gl_info->gl_card = CARD_INTEL_I915G;
            } else if (strstr(gl_info->gl_renderer, "865G")) {
                gl_info->gl_card = CARD_INTEL_I865G;
            } else if (strstr(gl_info->gl_renderer, "855G")) {
                gl_info->gl_card = CARD_INTEL_I855G;
            } else if (strstr(gl_info->gl_renderer, "830G")) {
                gl_info->gl_card = CARD_INTEL_I830G;
            } else {
                gl_info->gl_card = CARD_INTEL_I915G;
            }
            break;
        case VENDOR_MESA:
        case VENDOR_WINE:
        default:
            /* Default to generic Nvidia hardware based on the supported OpenGL extensions. The choice 
             * for Nvidia was because the hardware and drivers they make are of good quality. This makes
             * them a good generic choice.
             */
            gl_info->gl_vendor = VENDOR_NVIDIA;
            if(WINE_D3D9_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCEFX_5600;
            else if(WINE_D3D8_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCE3;
            else if(WINE_D3D7_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_GEFORCE;
            else if(WINE_D3D6_CAPABLE(gl_info))
                gl_info->gl_card = CARD_NVIDIA_RIVA_TNT;
            else
                gl_info->gl_card = CARD_NVIDIA_RIVA_128;
    }
    TRACE("FOUND (fake) card: 0x%x (vendor id), 0x%x (device id)\n", gl_info->gl_vendor, gl_info->gl_card);

    /* If we have an estimate use it, else default to 64MB;  */
    if(vidmem)
        gl_info->vidmem = vidmem*1024*1024; /* convert from MBs to bytes */
    else
        gl_info->vidmem = WINE_DEFAULT_VIDMEM;

    /* Load all the lookup tables
    TODO: It may be a good idea to make minLookup and maxLookup const and populate them in wined3d_private.h where they are declared */
    minLookup[WINELOOKUP_WARPPARAM] = WINED3DTADDRESS_WRAP;
    maxLookup[WINELOOKUP_WARPPARAM] = WINED3DTADDRESS_MIRRORONCE;

    minLookup[WINELOOKUP_MAGFILTER] = WINED3DTEXF_NONE;
    maxLookup[WINELOOKUP_MAGFILTER] = WINED3DTEXF_ANISOTROPIC;


    for (i = 0; i < MAX_LOOKUPS; i++) {
        stateLookup[i] = HeapAlloc(GetProcessHeap(), 0, sizeof(*stateLookup[i]) * (1 + maxLookup[i] - minLookup[i]) );
    }

    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_WRAP   - minLookup[WINELOOKUP_WARPPARAM]] = GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_CLAMP  - minLookup[WINELOOKUP_WARPPARAM]] = GL_CLAMP_TO_EDGE;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_BORDER - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_BORDER_CLAMP] ? GL_CLAMP_TO_BORDER_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_BORDER - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_BORDER_CLAMP] ? GL_CLAMP_TO_BORDER_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_MIRROR - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ARB_TEXTURE_MIRRORED_REPEAT] ? GL_MIRRORED_REPEAT_ARB : GL_REPEAT;
    stateLookup[WINELOOKUP_WARPPARAM][WINED3DTADDRESS_MIRRORONCE - minLookup[WINELOOKUP_WARPPARAM]] =
             gl_info->supported[ATI_TEXTURE_MIRROR_ONCE] ? GL_MIRROR_CLAMP_TO_EDGE_ATI : GL_REPEAT;

    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_NONE        - minLookup[WINELOOKUP_MAGFILTER]]  = GL_NEAREST;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_POINT       - minLookup[WINELOOKUP_MAGFILTER]] = GL_NEAREST;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_LINEAR      - minLookup[WINELOOKUP_MAGFILTER]] = GL_LINEAR;
    stateLookup[WINELOOKUP_MAGFILTER][WINED3DTEXF_ANISOTROPIC - minLookup[WINELOOKUP_MAGFILTER]] =
             gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR : GL_NEAREST;


    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_NONE]     = GL_LINEAR;
    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_POINT]    = GL_LINEAR;
    minMipLookup[WINED3DTEXF_NONE][WINED3DTEXF_LINEAR]   = GL_LINEAR;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_NONE]    = GL_NEAREST;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_POINT]   = GL_NEAREST_MIPMAP_NEAREST;
    minMipLookup[WINED3DTEXF_POINT][WINED3DTEXF_LINEAR]  = GL_NEAREST_MIPMAP_LINEAR;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_NONE]   = GL_LINEAR;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_POINT]  = GL_LINEAR_MIPMAP_NEAREST;
    minMipLookup[WINED3DTEXF_LINEAR][WINED3DTEXF_LINEAR] = GL_LINEAR_MIPMAP_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_NONE]   = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ?
    GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_POINT]  = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR;
    minMipLookup[WINED3DTEXF_ANISOTROPIC][WINED3DTEXF_LINEAR] = gl_info->supported[EXT_TEXTURE_FILTER_ANISOTROPIC] ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR;

/* TODO: config lookups */

    /* Make sure there's an active HDC else the WGL extensions will fail */
    hdc = pwglGetCurrentDC();
    if (hdc) {
        WGL_Extensions = GL_EXTCALL(wglGetExtensionsStringARB(hdc));
        TRACE_(d3d_caps)("WGL_Extensions reported:\n");

        if (NULL == WGL_Extensions) {
            ERR("   WGL_Extensions returns NULL\n");
        } else {
            while (*WGL_Extensions != 0x00) {
                const char *Start;
                char ThisExtn[256];
                size_t len;

                while (isspace(*WGL_Extensions)) WGL_Extensions++;
                Start = WGL_Extensions;
                while (!isspace(*WGL_Extensions) && *WGL_Extensions != 0x00) {
                    WGL_Extensions++;
                }

                len = WGL_Extensions - Start;
                if (len == 0 || len >= sizeof(ThisExtn))
                    continue;

                memcpy(ThisExtn, Start, len);
                ThisExtn[len] = '\0';
                TRACE_(d3d_caps)("- %s\n", ThisExtn);

                if (!strcmp(ThisExtn, "WGL_ARB_pbuffer")) {
                    gl_info->supported[WGL_ARB_PBUFFER] = TRUE;
                    TRACE_(d3d_caps)("FOUND: WGL_ARB_pbuffer support\n");
                }
            }
        }
    }
    LEAVE_GL();

    return return_value;
}
#undef GLINFO_LOCATION

/**********************************************************
 * IWineD3D implementation follows
 **********************************************************/

static UINT     WINAPI IWineD3DImpl_GetAdapterCount (IWineD3D *iface) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    TRACE_(d3d_caps)("(%p): Reporting %d adapters\n", This, numAdapters);
    return numAdapters;
}

static HRESULT  WINAPI IWineD3DImpl_RegisterSoftwareDevice(IWineD3D *iface, void* pInitializeFunction) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    FIXME("(%p)->(%p): stub\n", This, pInitializeFunction);
    return WINED3D_OK;
}

static HMONITOR WINAPI IWineD3DImpl_GetAdapterMonitor(IWineD3D *iface, UINT Adapter) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    if (Adapter >= IWineD3DImpl_GetAdapterCount(iface)) {
        return NULL;
    }

    TRACE_(d3d_caps)("(%p)->(%d)\n", This, Adapter);
    return MonitorFromPoint(Adapters[Adapter].monitorPoint, MONITOR_DEFAULTTOPRIMARY);
}

/* FIXME: GetAdapterModeCount and EnumAdapterModes currently only returns modes
     of the same bpp but different resolutions                                  */

/* Note: dx9 supplies a format. Calls from d3d8 supply WINED3DFMT_UNKNOWN */
static UINT     WINAPI IWineD3DImpl_GetAdapterModeCount(IWineD3D *iface, UINT Adapter, WINED3DFORMAT Format) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter: %d, Format: %s)\n", This, Adapter, debug_d3dformat(Format));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return 0;
    }

    /* TODO: Store modes per adapter and read it from the adapter structure */
    if (Adapter == 0) { /* Display */
        int i = 0;
        int j = 0;

        if (!DEBUG_SINGLE_MODE) {
            DEVMODEW DevModeW;

            ZeroMemory(&DevModeW, sizeof(DevModeW));
            DevModeW.dmSize = sizeof(DevModeW);
            while (EnumDisplaySettingsExW(NULL, j, &DevModeW, 0)) {
                j++;
                switch (Format)
                {
                    case WINED3DFMT_UNKNOWN:
                        /* This is for D3D8, do not enumerate P8 here */
                        if (DevModeW.dmBitsPerPel == 32 ||
                            DevModeW.dmBitsPerPel == 16) i++;
                        break;
                    case WINED3DFMT_X8R8G8B8:
                        if (DevModeW.dmBitsPerPel == 32) i++;
                        break;
                    case WINED3DFMT_R5G6B5:
                        if (DevModeW.dmBitsPerPel == 16) i++;
                        break;
                    case WINED3DFMT_P8:
                        if (DevModeW.dmBitsPerPel == 8) i++;
                        break;
                    default:
                        /* Skip other modes as they do not match the requested format */
                        break;
                }
            }
        } else {
            i = 1;
            j = 1;
        }

        TRACE_(d3d_caps)("(%p}->(Adapter: %d) => %d (out of %d)\n", This, Adapter, i, j);
        return i;
    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }
    return 0;
}

/* Note: dx9 supplies a format. Calls from d3d8 supply WINED3DFMT_UNKNOWN */
static HRESULT WINAPI IWineD3DImpl_EnumAdapterModes(IWineD3D *iface, UINT Adapter, WINED3DFORMAT Format, UINT Mode, WINED3DDISPLAYMODE* pMode) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter:%d, mode:%d, pMode:%p, format:%s)\n", This, Adapter, Mode, pMode, debug_d3dformat(Format));

    /* Validate the parameters as much as possible */
    if (NULL == pMode ||
        Adapter >= IWineD3DImpl_GetAdapterCount(iface) ||
        Mode    >= IWineD3DImpl_GetAdapterModeCount(iface, Adapter, Format)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* TODO: Store modes per adapter and read it from the adapter structure */
    if (Adapter == 0 && !DEBUG_SINGLE_MODE) { /* Display */
        DEVMODEW DevModeW;
        int ModeIdx = 0;
        int i = 0;
        int j = 0;

        ZeroMemory(&DevModeW, sizeof(DevModeW));
        DevModeW.dmSize = sizeof(DevModeW);

        /* If we are filtering to a specific format (D3D9), then need to skip
           all unrelated modes, but if mode is irrelevant (D3D8), then we can
           just count through the ones with valid bit depths */
        while ((i<=Mode) && EnumDisplaySettingsExW(NULL, j++, &DevModeW, 0)) {
            switch (Format)
            {
                case WINED3DFMT_UNKNOWN:
                    /* This is D3D8. Do not enumerate P8 here */
                    if (DevModeW.dmBitsPerPel == 32 ||
                        DevModeW.dmBitsPerPel == 16) i++;
                    break;
                case WINED3DFMT_X8R8G8B8:
                    if (DevModeW.dmBitsPerPel == 32) i++;
                    break;
                case WINED3DFMT_R5G6B5:
                    if (DevModeW.dmBitsPerPel == 16) i++;
                    break;
                case WINED3DFMT_P8:
                    if (DevModeW.dmBitsPerPel == 8) i++;
                    break;
                default:
                    /* Modes that don't match what we support can get an early-out */
                    TRACE_(d3d_caps)("Searching for %s, returning D3DERR_INVALIDCALL\n", debug_d3dformat(Format));
                    return WINED3DERR_INVALIDCALL;
            }
        }

        if (i == 0) {
            TRACE_(d3d_caps)("No modes found for format (%x - %s)\n", Format, debug_d3dformat(Format));
            return WINED3DERR_INVALIDCALL;
        }
        ModeIdx = j - 1;

        /* Now get the display mode via the calculated index */
        if (EnumDisplaySettingsExW(NULL, ModeIdx, &DevModeW, 0)) {
            pMode->Width        = DevModeW.dmPelsWidth;
            pMode->Height       = DevModeW.dmPelsHeight;
            pMode->RefreshRate  = WINED3DADAPTER_DEFAULT;
            if (DevModeW.dmFields & DM_DISPLAYFREQUENCY)
                pMode->RefreshRate = DevModeW.dmDisplayFrequency;

            if (Format == WINED3DFMT_UNKNOWN)
            {
                switch (DevModeW.dmBitsPerPel)
                {
                    case 8:
                        pMode->Format = WINED3DFMT_P8;
                        break;
                    case 16:
                        pMode->Format = WINED3DFMT_R5G6B5;
                        break;
                    case 32:
                        pMode->Format = WINED3DFMT_X8R8G8B8;
                        break;
                    default:
                        pMode->Format = WINED3DFMT_UNKNOWN;
                        ERR("Unhandled bit depth (%u) in mode list!\n", DevModeW.dmBitsPerPel);
                }
            } else {
                pMode->Format = Format;
            }
        } else {
            TRACE_(d3d_caps)("Requested mode out of range %d\n", Mode);
            return WINED3DERR_INVALIDCALL;
        }

        TRACE_(d3d_caps)("W %d H %d rr %d fmt (%x - %s) bpp %u\n", pMode->Width, pMode->Height,
                pMode->RefreshRate, pMode->Format, debug_d3dformat(pMode->Format),
                DevModeW.dmBitsPerPel);

    } else if (DEBUG_SINGLE_MODE) {
        /* Return one setting of the format requested */
        if (Mode > 0) return WINED3DERR_INVALIDCALL;
        pMode->Width        = 800;
        pMode->Height       = 600;
        pMode->RefreshRate  = 60;
        pMode->Format       = (Format == WINED3DFMT_UNKNOWN) ? WINED3DFMT_X8R8G8B8 : Format;
    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }

    return WINED3D_OK;
}

static HRESULT WINAPI IWineD3DImpl_GetAdapterDisplayMode(IWineD3D *iface, UINT Adapter, WINED3DDISPLAYMODE* pMode) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p}->(Adapter: %d, pMode: %p)\n", This, Adapter, pMode);

    if (NULL == pMode ||
        Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    if (Adapter == 0) { /* Display */
        int bpp = 0;
        DEVMODEW DevModeW;

        ZeroMemory(&DevModeW, sizeof(DevModeW));
        DevModeW.dmSize = sizeof(DevModeW);

        EnumDisplaySettingsExW(NULL, ENUM_CURRENT_SETTINGS, &DevModeW, 0);
        pMode->Width        = DevModeW.dmPelsWidth;
        pMode->Height       = DevModeW.dmPelsHeight;
        bpp                 = DevModeW.dmBitsPerPel;
        pMode->RefreshRate  = WINED3DADAPTER_DEFAULT;
        if (DevModeW.dmFields&DM_DISPLAYFREQUENCY)
        {
            pMode->RefreshRate = DevModeW.dmDisplayFrequency;
        }

        switch (bpp) {
        case  8: pMode->Format       = WINED3DFMT_R3G3B2;   break;
        case 16: pMode->Format       = WINED3DFMT_R5G6B5;   break;
        case 24: pMode->Format       = WINED3DFMT_X8R8G8B8; break; /* Robots needs 24bit to be X8R8G8B8 */
        case 32: pMode->Format       = WINED3DFMT_X8R8G8B8; break; /* EVE online and the Fur demo need 32bit AdapterDisplatMode to return X8R8G8B8 */
        default: pMode->Format       = WINED3DFMT_UNKNOWN;
        }

    } else {
        FIXME_(d3d_caps)("Adapter not primary display\n");
    }

    TRACE_(d3d_caps)("returning w:%d, h:%d, ref:%d, fmt:%s\n", pMode->Width,
          pMode->Height, pMode->RefreshRate, debug_d3dformat(pMode->Format));
    return WINED3D_OK;
}

/* NOTE: due to structure differences between dx8 and dx9 D3DADAPTER_IDENTIFIER,
   and fields being inserted in the middle, a new structure is used in place    */
static HRESULT WINAPI IWineD3DImpl_GetAdapterIdentifier(IWineD3D *iface, UINT Adapter, DWORD Flags,
                                                   WINED3DADAPTER_IDENTIFIER* pIdentifier) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    TRACE_(d3d_caps)("(%p}->(Adapter: %d, Flags: %x, pId=%p)\n", This, Adapter, Flags, pIdentifier);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* Return the information requested */
    TRACE_(d3d_caps)("device/Vendor Name and Version detection using FillGLCaps\n");
    strcpy(pIdentifier->Driver, Adapters[Adapter].driver);
    strcpy(pIdentifier->Description, Adapters[Adapter].description);

    /* Note dx8 doesn't supply a DeviceName */
    if (NULL != pIdentifier->DeviceName) strcpy(pIdentifier->DeviceName, "\\\\.\\DISPLAY"); /* FIXME: May depend on desktop? */
    /* Current Windows drivers have versions like 6.14.... (some older have an earlier version) */
    pIdentifier->DriverVersion->u.HighPart = MAKEDWORD_VERSION(6, 14);
    pIdentifier->DriverVersion->u.LowPart = Adapters[Adapter].gl_info.gl_driver_version;
    *(pIdentifier->VendorId) = Adapters[Adapter].gl_info.gl_vendor;
    *(pIdentifier->DeviceId) = Adapters[Adapter].gl_info.gl_card;
    *(pIdentifier->SubSysId) = 0;
    *(pIdentifier->Revision) = 0;

    /*FIXME: memcpy(&pIdentifier->DeviceIdentifier, ??, sizeof(??GUID)); */
    if (Flags & WINED3DENUM_NO_WHQL_LEVEL) {
        *(pIdentifier->WHQLLevel) = 0;
    } else {
        *(pIdentifier->WHQLLevel) = 1;
    }

    return WINED3D_OK;
}

static BOOL IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(const WineD3D_PixelFormat *cfg, WINED3DFORMAT Format) {
    short redSize, greenSize, blueSize, alphaSize, colorBits;

    if(!cfg)
        return FALSE;

    if(!getColorBits(Format, &redSize, &greenSize, &blueSize, &alphaSize, &colorBits)) {
        ERR("Unable to check compatibility for Format=%s\n", debug_d3dformat(Format));
        return FALSE;
    }

    if(cfg->redSize < redSize)
        return FALSE;

    if(cfg->greenSize < greenSize)
        return FALSE;

    if(cfg->blueSize < blueSize)
        return FALSE;

    if(cfg->alphaSize < alphaSize)
        return FALSE;

    return TRUE;
}

static BOOL IWineD3DImpl_IsPixelFormatCompatibleWithDepthFmt(const WineD3D_PixelFormat *cfg, WINED3DFORMAT Format) {
    short depthSize, stencilSize;

    if(!cfg)
        return FALSE;

    if(!getDepthStencilBits(Format, &depthSize, &stencilSize)) {
        ERR("Unable to check compatibility for Format=%s\n", debug_d3dformat(Format));
        return FALSE;
    }

    if(cfg->depthSize < depthSize)
        return FALSE;

    if(cfg->stencilSize < stencilSize)
        return FALSE;

    return TRUE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDepthStencilMatch(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType,
                                                   WINED3DFORMAT AdapterFormat,
                                                   WINED3DFORMAT RenderTargetFormat,
                                                   WINED3DFORMAT DepthStencilFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    int nCfgs;
    WineD3D_PixelFormat *cfgs;
    int it;

    WARN_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%x,%s), AdptFmt:(%x,%s), RendrTgtFmt:(%x,%s), DepthStencilFmt:(%x,%s))\n",
           This, Adapter,
           DeviceType, debug_d3ddevicetype(DeviceType),
           AdapterFormat, debug_d3dformat(AdapterFormat),
           RenderTargetFormat, debug_d3dformat(RenderTargetFormat),
           DepthStencilFormat, debug_d3dformat(DepthStencilFormat));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        TRACE("(%p) Failed: Atapter (%u) higher than supported adapters (%u) returning WINED3DERR_INVALIDCALL\n", This, Adapter, IWineD3D_GetAdapterCount(iface));
        return WINED3DERR_INVALIDCALL;
    }

    cfgs = Adapters[Adapter].cfgs;
    nCfgs = Adapters[Adapter].nCfgs;
    for (it = 0; it < nCfgs; ++it) {
        if (IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], RenderTargetFormat)) {
            if (IWineD3DImpl_IsPixelFormatCompatibleWithDepthFmt(&cfgs[it], DepthStencilFormat)) {
                TRACE_(d3d_caps)("(%p) : Formats matched\n", This);
                return WINED3D_OK;
            }
        }
    }
    WARN_(d3d_caps)("unsupported format pair: %s and %s\n", debug_d3dformat(RenderTargetFormat), debug_d3dformat(DepthStencilFormat));

    return WINED3DERR_NOTAVAILABLE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDeviceMultiSampleType(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, 
                                                       WINED3DFORMAT SurfaceFormat,
                                                       BOOL Windowed, WINED3DMULTISAMPLE_TYPE MultiSampleType, DWORD*   pQualityLevels) {

    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%x,%s), SurfFmt:(%x,%s), Win?%d, MultiSamp:%x, pQual:%p)\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          SurfaceFormat, debug_d3dformat(SurfaceFormat),
          Windowed,
          MultiSampleType,
          pQualityLevels);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* TODO: Store in Adapter structure */
    if (pQualityLevels != NULL) {
        static int s_single_shot = 0;
        if (!s_single_shot) {
            FIXME("Quality levels unsupported at present\n");
            s_single_shot = 1;
        }
        *pQualityLevels = 1; /* Guess at a value! */
    }

    if (WINED3DMULTISAMPLE_NONE == MultiSampleType) return WINED3D_OK;
    return WINED3DERR_NOTAVAILABLE;
}

static HRESULT WINAPI IWineD3DImpl_CheckDeviceType(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE CheckType,
                                            WINED3DFORMAT DisplayFormat, WINED3DFORMAT BackBufferFormat, BOOL Windowed) {

    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    int nCfgs = 0;
    WineD3D_PixelFormat *cfgs;
    int it;
    HRESULT hr = WINED3DERR_NOTAVAILABLE;

    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, CheckType:(%x,%s), DispFmt:(%x,%s), BackBuf:(%x,%s), Win?%d): stub\n",
          This,
          Adapter,
          CheckType, debug_d3ddevicetype(CheckType),
          DisplayFormat, debug_d3dformat(DisplayFormat),
          BackBufferFormat, debug_d3dformat(BackBufferFormat),
          Windowed);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        WARN_(d3d_caps)("Adapter >= IWineD3D_GetAdapterCount(iface), returning WINED3DERR_INVALIDCALL\n");
        return WINED3DERR_INVALIDCALL;
    }

    cfgs = Adapters[Adapter].cfgs;
    nCfgs = Adapters[Adapter].nCfgs;
    for (it = 0; it < nCfgs; ++it) {
        if (IWineD3DImpl_IsPixelFormatCompatibleWithRenderFmt(&cfgs[it], DisplayFormat)) {
            hr = WINED3D_OK;
            TRACE_(d3d_caps)("OK\n");
            break ;
        }
    }

    if(hr != WINED3D_OK)
        ERR("unsupported format %s\n", debug_d3dformat(DisplayFormat));

    if(hr != WINED3D_OK)
        TRACE_(d3d_caps)("returning something different from WINED3D_OK\n");

    return hr;
}

#define GLINFO_LOCATION Adapters[Adapter].gl_info
static HRESULT WINAPI IWineD3DImpl_CheckDeviceFormat(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, 
                                              WINED3DFORMAT AdapterFormat, DWORD Usage, WINED3DRESOURCETYPE RType, WINED3DFORMAT CheckFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    TRACE_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%u,%s), AdptFmt:(%u,%s), Use:(%u,%s,%s), ResTyp:(%x,%s), CheckFmt:(%u,%s))\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          AdapterFormat, debug_d3dformat(AdapterFormat),
          Usage, debug_d3dusage(Usage), debug_d3dusagequery(Usage),
          RType, debug_d3dresourcetype(RType),
          CheckFormat, debug_d3dformat(CheckFormat));

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    if (Usage & WINED3DUSAGE_QUERY_FILTER) {
        switch (CheckFormat) {
            /* Filtering not supported */
            case WINED3DFMT_R32F:
            case WINED3DFMT_A32B32G32R32F:
                TRACE_(d3d_caps)("[FAILED]\n");
                return WINED3DERR_NOTAVAILABLE;
            default:
                break;
        }
    }

    if (Usage & WINED3DUSAGE_AUTOGENMIPMAP) {
        if(!GL_SUPPORT(SGIS_GENERATE_MIPMAP)) {
            TRACE_(d3d_caps)("[FAILED] - No mipmap generation support\n");
            return WINED3DERR_NOTAVAILABLE;
        }
    }

    if(RType == WINED3DRTYPE_VOLUMETEXTURE) {
        if(!GL_SUPPORT(EXT_TEXTURE3D)) {
            TRACE_(d3d_caps)("[FAILED] - No volume texture support\n");
            return WINED3DERR_NOTAVAILABLE;
        }
        /* Filter formats that need conversion; For one part, this conversion is unimplemented,
         * and volume textures are huge, so it would be a big performance hit. Unless we hit an
         * app needing one of those formats, don't advertize them to avoid leading apps into
         * temptation. The windows drivers don't support most of those formats on volumes anyway,
         * except of R32F.
         */
        switch(CheckFormat) {
            case WINED3DFMT_P8:
            case WINED3DFMT_A4L4:
            case WINED3DFMT_R32F:
            case WINED3DFMT_R16F:
            case WINED3DFMT_X8L8V8U8:
            case WINED3DFMT_L6V5U5:
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;

            case WINED3DFMT_Q8W8V8U8:
            case WINED3DFMT_V16U16:
            if(!GL_SUPPORT(NV_TEXTURE_SHADER)) {
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;
            }
            break;

            case WINED3DFMT_V8U8:
            if(!GL_SUPPORT(NV_TEXTURE_SHADER) || !GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
                TRACE_(d3d_caps)("[FAILED] - No converted formats on volumes\n");
                return WINED3DERR_NOTAVAILABLE;
            }
            break;

            case WINED3DFMT_DXT1:
            case WINED3DFMT_DXT2:
            case WINED3DFMT_DXT3:
            case WINED3DFMT_DXT4:
            case WINED3DFMT_DXT5:
                /* The GL_EXT_texture_compression_s3tc spec requires that loading an s3tc
                 * compressed texture results in an error. While the D3D refrast does
                 * support s3tc volumes, at least the nvidia windows driver does not, so
                 * we're free not to support this format.
                 */
                TRACE_(d3d_caps)("[FAILED] - DXTn does not support 3D textures\n");
                return WINED3DERR_NOTAVAILABLE;

            default:
                /* Do nothing, continue with checking the format below */
                break;
        }
    }
    /* TODO: Check support against more of the WINED3DUSAGE_QUERY_* constants
     * See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/IDirect3D9__CheckDeviceFormat.asp
     * and http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/D3DUSAGE_QUERY.asp */
    if (Usage & WINED3DUSAGE_QUERY_VERTEXTEXTURE) {
        if (!GL_LIMITS(vertex_samplers)) {
            TRACE_(d3d_caps)("[FAILED]\n");
            return WINED3DERR_NOTAVAILABLE;
        }

        switch (CheckFormat) {
            case WINED3DFMT_A32B32G32R32F:
                if (!GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
                    TRACE_(d3d_caps)("[FAILED]\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;

            default:
                TRACE_(d3d_caps)("[FAILED]\n");
                return WINED3DERR_NOTAVAILABLE;
        }
    }

    if(Usage & WINED3DUSAGE_DEPTHSTENCIL) {
        switch (CheckFormat) {
            /* In theory we could do all formats, just fetch them accordingly should the buffer be locked.
             * Windows supports only those 3, and enumerating the other formats confuses applications
             */
            case WINED3DFMT_D24S8:
            case WINED3DFMT_D24X8:
            case WINED3DFMT_D16:
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            case WINED3DFMT_D16_LOCKABLE:
            case WINED3DFMT_D24FS8:
            case WINED3DFMT_D32F_LOCKABLE:
            case WINED3DFMT_D24X4S4:
            case WINED3DFMT_D15S1:
            case WINED3DFMT_D32:
                TRACE_(d3d_caps)("[FAILED]. Disabled because not enumerated on windows\n");
                return WINED3DERR_NOTAVAILABLE;
            default:
                TRACE_(d3d_caps)("[FAILED]\n");
                return WINED3DERR_NOTAVAILABLE;
        }
    } else if(Usage & WINED3DUSAGE_RENDERTARGET) {
        switch (CheckFormat) {
            case WINED3DFMT_R8G8B8:
            case WINED3DFMT_A8R8G8B8:
            case WINED3DFMT_X8R8G8B8:
            case WINED3DFMT_R5G6B5:
            case WINED3DFMT_X1R5G5B5:
            case WINED3DFMT_A1R5G5B5:
            case WINED3DFMT_A4R4G4B4:
            case WINED3DFMT_R3G3B2:
            case WINED3DFMT_X4R4G4B4:
            case WINED3DFMT_A8B8G8R8:
            case WINED3DFMT_X8B8G8R8:
            case WINED3DFMT_P8:
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            case WINED3DFMT_R16F:
            case WINED3DFMT_A16B16G16R16F:
                if (!GL_SUPPORT(ARB_HALF_FLOAT_PIXEL) || !GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
                    TRACE_(d3d_caps)("[FAILED]\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            case WINED3DFMT_A32B32G32R32F:
               if (!GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
                    TRACE_(d3d_caps)("[FAILED]\n");
                    return WINED3DERR_NOTAVAILABLE;
                }
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            default:
                TRACE_(d3d_caps)("[FAILED]\n");
                return WINED3DERR_NOTAVAILABLE;
        }
    } else if(Usage & WINED3DUSAGE_QUERY_LEGACYBUMPMAP) {
        if(GL_SUPPORT(NV_REGISTER_COMBINERS) && GL_SUPPORT(NV_TEXTURE_SHADER2)) {
            switch (CheckFormat) {
                case WINED3DFMT_V8U8:
                    TRACE_(d3d_caps)("[OK]\n");
                    return WINED3D_OK;
                /* TODO: Other bump map formats */
                default:
                    TRACE_(d3d_caps)("[FAILED]\n");
                    return WINED3DERR_NOTAVAILABLE;
            }
        }
        if(GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
            switch (CheckFormat) {
                case WINED3DFMT_V8U8:
                    TRACE_(d3d_caps)("[OK]\n");
                    return WINED3D_OK;
                default:
                    TRACE_(d3d_caps)("[FAILED]\n");
                    return WINED3DERR_NOTAVAILABLE;
            }
        }
        TRACE_(d3d_caps)("[FAILED]\n");
        return WINED3DERR_NOTAVAILABLE;
    }

    if (GL_SUPPORT(EXT_TEXTURE_COMPRESSION_S3TC)) {
        switch (CheckFormat) {
        case WINED3DFMT_DXT1:
        case WINED3DFMT_DXT2:
        case WINED3DFMT_DXT3:
        case WINED3DFMT_DXT4:
        case WINED3DFMT_DXT5:
          TRACE_(d3d_caps)("[OK]\n");
          return WINED3D_OK;
        default:
            break; /* Avoid compiler warnings */
        }
    }

    /* Check for supported sRGB formats (Texture loading and framebuffer) */
    if (GL_SUPPORT(EXT_TEXTURE_SRGB) && (Usage & WINED3DUSAGE_QUERY_SRGBREAD)) {
        switch (CheckFormat) {
            case WINED3DFMT_A8R8G8B8:
            case WINED3DFMT_X8R8G8B8:
            case WINED3DFMT_A4R4G4B4:
            case WINED3DFMT_L8:
            case WINED3DFMT_A8L8:
            case WINED3DFMT_DXT1:
            case WINED3DFMT_DXT2:
            case WINED3DFMT_DXT3:
            case WINED3DFMT_DXT4:
            case WINED3DFMT_DXT5:
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;

            default:
                TRACE_(d3d_caps)("[FAILED] Gamma texture format %s not supported.\n", debug_d3dformat(CheckFormat));
                return WINED3DERR_NOTAVAILABLE;
        }
    }

    if (GL_SUPPORT(ARB_TEXTURE_FLOAT)) {

        BOOL half_pixel_support = GL_SUPPORT(ARB_HALF_FLOAT_PIXEL);

        switch (CheckFormat) {
            case WINED3DFMT_R16F:
            case WINED3DFMT_A16B16G16R16F:
                if (!half_pixel_support) break;
            case WINED3DFMT_R32F:
            case WINED3DFMT_A32B32G32R32F:
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            default:
                break; /* Avoid compiler warnings */
        }
    }

    /* This format is nothing special and it is supported perfectly.
     * However, ati and nvidia driver on windows do not mark this format as
     * supported (tested with the dxCapsViewer) and pretending to
     * support this format uncovers a bug in Battlefield 1942 (fonts are missing)
     * So do the same as Windows drivers and pretend not to support it on dx8 and 9
     * Enable it on dx7. It will need additional checking on dx10 when we support it.
     */
    if(This->dxVersion > 7 && CheckFormat == WINED3DFMT_R8G8B8) {
        TRACE_(d3d_caps)("[FAILED]\n");
        return WINED3DERR_NOTAVAILABLE;
    }

    switch (CheckFormat) {

        /*****
         *  supported: RGB(A) formats
         */
        case WINED3DFMT_R8G8B8: /* Enable for dx7, blacklisted for 8 and 9 above */
        case WINED3DFMT_A8R8G8B8:
        case WINED3DFMT_X8R8G8B8:
        case WINED3DFMT_R5G6B5:
        case WINED3DFMT_X1R5G5B5:
        case WINED3DFMT_A1R5G5B5:
        case WINED3DFMT_A4R4G4B4:
        case WINED3DFMT_R3G3B2:
        case WINED3DFMT_A8:
        case WINED3DFMT_X4R4G4B4:
        case WINED3DFMT_A8B8G8R8:
        case WINED3DFMT_X8B8G8R8:
        case WINED3DFMT_A2R10G10B10:
        case WINED3DFMT_A2B10G10R10:
            TRACE_(d3d_caps)("[OK]\n");
            return WINED3D_OK;

        /*****
         *  supported: Palettized
         */
        case WINED3DFMT_P8:
            TRACE_(d3d_caps)("[OK]\n");
            return WINED3D_OK;

        /*****
         *  Supported: (Alpha)-Luminance
         */
        case WINED3DFMT_L8:
        case WINED3DFMT_A8L8:
        case WINED3DFMT_A4L4:
            TRACE_(d3d_caps)("[OK]\n");
            return WINED3D_OK;

        /*****
         *  Not supported everywhere(depends on GL_ATI_envmap_bumpmap or
         *  GL_NV_texture_shader), but advertized to make apps happy.
         *  Enable some because games often fail when they are not available
         *  and are still playable even without bump mapping
         */
        case WINED3DFMT_V8U8:
        case WINED3DFMT_V16U16:
        case WINED3DFMT_L6V5U5:
        case WINED3DFMT_X8L8V8U8:
        case WINED3DFMT_Q8W8V8U8:
            WARN_(d3d_caps)("[Not supported, but pretended to do]\n");
            return WINED3D_OK;

        /* Those are not advertized by the nvidia windows driver, and not
         * supported natively by GL_NV_texture_shader or GL_ATI_envmap_bumpmap.
         * WINED3DFMT_A2W10V10U10 could be loaded into shaders using the unsigned
         * ARGB format if needed
         */
        case WINED3DFMT_W11V11U10:
        case WINED3DFMT_A2W10V10U10:
            WARN_(d3d_caps)("[FAILED]\n");
            return WINED3DERR_NOTAVAILABLE;

        /*****
         *  DXTN Formats: Handled above
         * WINED3DFMT_DXT1
         * WINED3DFMT_DXT2
         * WINED3DFMT_DXT3
         * WINED3DFMT_DXT4
         * WINED3DFMT_DXT5
         */

        /*****
         *  Odd formats - not supported
         */
        case WINED3DFMT_VERTEXDATA:
        case WINED3DFMT_INDEX16:
        case WINED3DFMT_INDEX32:
        case WINED3DFMT_Q16W16V16U16:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return WINED3DERR_NOTAVAILABLE;

        /*****
         *  Float formats: Not supported right now
         */
        case WINED3DFMT_G16R16F:
        case WINED3DFMT_G32R32F:
        case WINED3DFMT_CxV8U8:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return WINED3DERR_NOTAVAILABLE;

            /* Not supported */
        case WINED3DFMT_G16R16:
        case WINED3DFMT_A16B16G16R16:
        case WINED3DFMT_A8R3G3B2:
            TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
            return WINED3DERR_NOTAVAILABLE;

        /* ATI instancing hack: Although ATI cards do not support Shader Model 3.0, they support
         * instancing. To query if the card supports instancing CheckDeviceFormat with the special format
         * MAKEFOURCC('I','N','S','T') is used. Should a (broken) app check for this provide a proper return value.
         * We can do instancing with all shader versions, but we need vertex shaders.
         *
         * Additionally applications have to set the D3DRS_POINTSIZE render state to MAKEFOURCC('I','N','S','T') once
         * to enable instancing. WineD3D doesn't need that and just ignores it.
         *
         * With Shader Model 3.0 capable cards Instancing 'just works' in Windows.
         */
        case WINEMAKEFOURCC('I','N','S','T'):
            TRACE("ATI Instancing check hack\n");
            if(GL_SUPPORT(ARB_VERTEX_PROGRAM) || GL_SUPPORT(ARB_VERTEX_SHADER)) {
                TRACE_(d3d_caps)("[OK]\n");
                return WINED3D_OK;
            } else {
                TRACE_(d3d_caps)("[FAILED]\n");
                return WINED3DERR_NOTAVAILABLE;
            }

        default:
            break;
    }

    TRACE_(d3d_caps)("[FAILED]\n");
    return WINED3DERR_NOTAVAILABLE;
}

static HRESULT  WINAPI IWineD3DImpl_CheckDeviceFormatConversion(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType,
                                                          WINED3DFORMAT SourceFormat, WINED3DFORMAT TargetFormat) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;

    FIXME_(d3d_caps)("(%p)-> (STUB) (Adptr:%d, DevType:(%u,%s), SrcFmt:(%u,%s), TgtFmt:(%u,%s))\n",
          This,
          Adapter,
          DeviceType, debug_d3ddevicetype(DeviceType),
          SourceFormat, debug_d3dformat(SourceFormat),
          TargetFormat, debug_d3dformat(TargetFormat));
    return WINED3D_OK;
}

/* Note: d3d8 passes in a pointer to a D3DCAPS8 structure, which is a true
      subset of a D3DCAPS9 structure. However, it has to come via a void *
      as the d3d8 interface cannot import the d3d9 header                  */
static HRESULT WINAPI IWineD3DImpl_GetDeviceCaps(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, WINED3DCAPS* pCaps) {

    IWineD3DImpl    *This = (IWineD3DImpl *)iface;
    int vs_selected_mode;
    int ps_selected_mode;

    TRACE_(d3d_caps)("(%p)->(Adptr:%d, DevType: %x, pCaps: %p)\n", This, Adapter, DeviceType, pCaps);

    if (Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    select_shader_mode(&Adapters[Adapter].gl_info, DeviceType, &ps_selected_mode, &vs_selected_mode);

    /* This function should *not* be modifying GL caps
     * TODO: move the functionality where it belongs */
    select_shader_max_constants(ps_selected_mode, vs_selected_mode, &Adapters[Adapter].gl_info);

    /* ------------------------------------------------
       The following fields apply to both d3d8 and d3d9
       ------------------------------------------------ */
    *pCaps->DeviceType              = (DeviceType == WINED3DDEVTYPE_HAL) ? WINED3DDEVTYPE_HAL : WINED3DDEVTYPE_REF;  /* Not quite true, but use h/w supported by opengl I suppose */
    *pCaps->AdapterOrdinal          = Adapter;

    *pCaps->Caps                    = 0;
    *pCaps->Caps2                   = WINED3DCAPS2_CANRENDERWINDOWED |
                                      WINED3DCAPS2_FULLSCREENGAMMA |
                                      WINED3DCAPS2_DYNAMICTEXTURES;
    if(GL_SUPPORT(SGIS_GENERATE_MIPMAP)) {
        *pCaps->Caps2 |= WINED3DCAPS2_CANAUTOGENMIPMAP;
    }
    *pCaps->Caps3                   = WINED3DCAPS3_ALPHA_FULLSCREEN_FLIP_OR_DISCARD;
    *pCaps->PresentationIntervals   = WINED3DPRESENT_INTERVAL_IMMEDIATE  |
                                      WINED3DPRESENT_INTERVAL_ONE;

    *pCaps->CursorCaps              = WINED3DCURSORCAPS_COLOR            |
                                      WINED3DCURSORCAPS_LOWRES;

    *pCaps->DevCaps                 = WINED3DDEVCAPS_FLOATTLVERTEX       |
                                      WINED3DDEVCAPS_EXECUTESYSTEMMEMORY |
                                      WINED3DDEVCAPS_TLVERTEXSYSTEMMEMORY|
                                      WINED3DDEVCAPS_TLVERTEXVIDEOMEMORY |
                                      WINED3DDEVCAPS_DRAWPRIMTLVERTEX    |
                                      WINED3DDEVCAPS_HWTRANSFORMANDLIGHT |
                                      WINED3DDEVCAPS_EXECUTEVIDEOMEMORY  |
                                      WINED3DDEVCAPS_PUREDEVICE          |
                                      WINED3DDEVCAPS_HWRASTERIZATION     |
                                      WINED3DDEVCAPS_TEXTUREVIDEOMEMORY  |
                                      WINED3DDEVCAPS_TEXTURESYSTEMMEMORY |
                                      WINED3DDEVCAPS_CANRENDERAFTERFLIP  |
                                      WINED3DDEVCAPS_DRAWPRIMITIVES2     |
                                      WINED3DDEVCAPS_DRAWPRIMITIVES2EX   |
                                      WINED3DDEVCAPS_RTPATCHES;

    *pCaps->PrimitiveMiscCaps       = WINED3DPMISCCAPS_CULLNONE              |
                                      WINED3DPMISCCAPS_CULLCCW               |
                                      WINED3DPMISCCAPS_CULLCW                |
                                      WINED3DPMISCCAPS_COLORWRITEENABLE      |
                                      WINED3DPMISCCAPS_CLIPTLVERTS           |
                                      WINED3DPMISCCAPS_CLIPPLANESCALEDPOINTS |
                                      WINED3DPMISCCAPS_MASKZ                 |
                                      WINED3DPMISCCAPS_BLENDOP;
                                    /* TODO:
                                        WINED3DPMISCCAPS_NULLREFERENCE
                                        WINED3DPMISCCAPS_INDEPENDENTWRITEMASKS
                                        WINED3DPMISCCAPS_FOGANDSPECULARALPHA
                                        WINED3DPMISCCAPS_SEPARATEALPHABLEND
                                        WINED3DPMISCCAPS_MRTINDEPENDENTBITDEPTHS
                                        WINED3DPMISCCAPS_MRTPOSTPIXELSHADERBLENDING
                                        WINED3DPMISCCAPS_FOGVERTEXCLAMPED */

/* The caps below can be supported but aren't handled yet in utils.c 'd3dta_to_combiner_input', disable them until support is fixed */
#if 0
    if (GL_SUPPORT(NV_REGISTER_COMBINERS))
        *pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_TSSARGTEMP;
    if (GL_SUPPORT(NV_REGISTER_COMBINERS2))
        *pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_PERSTAGECONSTANT;
#endif

    *pCaps->RasterCaps              = WINED3DPRASTERCAPS_DITHER    |
                                      WINED3DPRASTERCAPS_PAT       |
                                      WINED3DPRASTERCAPS_WFOG      |
                                      WINED3DPRASTERCAPS_ZFOG      |
                                      WINED3DPRASTERCAPS_FOGVERTEX |
                                      WINED3DPRASTERCAPS_FOGTABLE  |
                                      WINED3DPRASTERCAPS_STIPPLE   |
                                      WINED3DPRASTERCAPS_SUBPIXEL  |
                                      WINED3DPRASTERCAPS_ZTEST     |
                                      WINED3DPRASTERCAPS_SCISSORTEST   |
                                      WINED3DPRASTERCAPS_SLOPESCALEDEPTHBIAS |
                                      WINED3DPRASTERCAPS_DEPTHBIAS;

    if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
      *pCaps->RasterCaps |= WINED3DPRASTERCAPS_ANISOTROPY    |
                            WINED3DPRASTERCAPS_ZBIAS         |
                            WINED3DPRASTERCAPS_MIPMAPLODBIAS;
    }
    if(GL_SUPPORT(NV_FOG_DISTANCE)) {
        *pCaps->RasterCaps         |= WINED3DPRASTERCAPS_FOGRANGE;
    }
                        /* FIXME Add:
			   WINED3DPRASTERCAPS_COLORPERSPECTIVE
			   WINED3DPRASTERCAPS_STRETCHBLTMULTISAMPLE
			   WINED3DPRASTERCAPS_ANTIALIASEDGES
			   WINED3DPRASTERCAPS_ZBUFFERLESSHSR
			   WINED3DPRASTERCAPS_WBUFFER */

    *pCaps->ZCmpCaps = WINED3DPCMPCAPS_ALWAYS       |
                       WINED3DPCMPCAPS_EQUAL        |
                       WINED3DPCMPCAPS_GREATER      |
                       WINED3DPCMPCAPS_GREATEREQUAL |
                       WINED3DPCMPCAPS_LESS         |
                       WINED3DPCMPCAPS_LESSEQUAL    |
                       WINED3DPCMPCAPS_NEVER        |
                       WINED3DPCMPCAPS_NOTEQUAL;

    *pCaps->SrcBlendCaps  = WINED3DPBLENDCAPS_BLENDFACTOR     |
                            WINED3DPBLENDCAPS_BOTHINVSRCALPHA |
                            WINED3DPBLENDCAPS_BOTHSRCALPHA    |
                            WINED3DPBLENDCAPS_DESTALPHA       |
                            WINED3DPBLENDCAPS_DESTCOLOR       |
                            WINED3DPBLENDCAPS_INVDESTALPHA    |
                            WINED3DPBLENDCAPS_INVDESTCOLOR    |
                            WINED3DPBLENDCAPS_INVSRCALPHA     |
                            WINED3DPBLENDCAPS_INVSRCCOLOR     |
                            WINED3DPBLENDCAPS_ONE             |
                            WINED3DPBLENDCAPS_SRCALPHA        |
                            WINED3DPBLENDCAPS_SRCALPHASAT     |
                            WINED3DPBLENDCAPS_SRCCOLOR        |
                            WINED3DPBLENDCAPS_ZERO;

    *pCaps->DestBlendCaps = WINED3DPBLENDCAPS_BLENDFACTOR     |
                            WINED3DPBLENDCAPS_DESTALPHA       |
                            WINED3DPBLENDCAPS_DESTCOLOR       |
                            WINED3DPBLENDCAPS_INVDESTALPHA    |
                            WINED3DPBLENDCAPS_INVDESTCOLOR    |
                            WINED3DPBLENDCAPS_INVSRCALPHA     |
                            WINED3DPBLENDCAPS_INVSRCCOLOR     |
                            WINED3DPBLENDCAPS_ONE             |
                            WINED3DPBLENDCAPS_SRCALPHA        |
                            WINED3DPBLENDCAPS_SRCCOLOR        |
                            WINED3DPBLENDCAPS_ZERO;
    /* NOTE: WINED3DPBLENDCAPS_SRCALPHASAT is not supported as dest blend factor,
     * according to the glBlendFunc manpage
     *
     * WINED3DPBLENDCAPS_BOTHINVSRCALPHA and WINED3DPBLENDCAPS_BOTHSRCALPHA are
     * legacy settings for srcblend only
     */

    *pCaps->AlphaCmpCaps = WINED3DPCMPCAPS_ALWAYS       |
                           WINED3DPCMPCAPS_EQUAL        |
                           WINED3DPCMPCAPS_GREATER      |
                           WINED3DPCMPCAPS_GREATEREQUAL |
                           WINED3DPCMPCAPS_LESS         |
                           WINED3DPCMPCAPS_LESSEQUAL    |
                           WINED3DPCMPCAPS_NEVER        |
                           WINED3DPCMPCAPS_NOTEQUAL;

    *pCaps->ShadeCaps     = WINED3DPSHADECAPS_SPECULARGOURAUDRGB |
                            WINED3DPSHADECAPS_COLORGOURAUDRGB    |
                            WINED3DPSHADECAPS_ALPHAFLATBLEND     |
                            WINED3DPSHADECAPS_ALPHAGOURAUDBLEND  |
                            WINED3DPSHADECAPS_COLORFLATRGB       |
                            WINED3DPSHADECAPS_FOGFLAT            |
                            WINED3DPSHADECAPS_FOGGOURAUD         |
                            WINED3DPSHADECAPS_SPECULARFLATRGB;

    *pCaps->TextureCaps =  WINED3DPTEXTURECAPS_ALPHA              |
                           WINED3DPTEXTURECAPS_ALPHAPALETTE       |
                           WINED3DPTEXTURECAPS_BORDER             |
                           WINED3DPTEXTURECAPS_MIPMAP             |
                           WINED3DPTEXTURECAPS_PROJECTED          |
                           WINED3DPTEXTURECAPS_PERSPECTIVE;

    if( !GL_SUPPORT(ARB_TEXTURE_NON_POWER_OF_TWO)) {
        *pCaps->TextureCaps |= WINED3DPTEXTURECAPS_POW2 |
                                WINED3DPTEXTURECAPS_NONPOW2CONDITIONAL;
    }

    if( GL_SUPPORT(EXT_TEXTURE3D)) {
        *pCaps->TextureCaps |=  WINED3DPTEXTURECAPS_VOLUMEMAP      |
                                WINED3DPTEXTURECAPS_MIPVOLUMEMAP   |
                                WINED3DPTEXTURECAPS_VOLUMEMAP_POW2;
    }

    if (GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
        *pCaps->TextureCaps |= WINED3DPTEXTURECAPS_CUBEMAP     |
                             WINED3DPTEXTURECAPS_MIPCUBEMAP    |
                             WINED3DPTEXTURECAPS_CUBEMAP_POW2;

    }

    *pCaps->TextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                                WINED3DPTFILTERCAPS_MAGFPOINT        |
                                WINED3DPTFILTERCAPS_MINFLINEAR       |
                                WINED3DPTFILTERCAPS_MINFPOINT        |
                                WINED3DPTFILTERCAPS_MIPFLINEAR       |
                                WINED3DPTFILTERCAPS_MIPFPOINT        |
                                WINED3DPTFILTERCAPS_LINEAR           |
                                WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                                WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                                WINED3DPTFILTERCAPS_MIPLINEAR        |
                                WINED3DPTFILTERCAPS_MIPNEAREST       |
                                WINED3DPTFILTERCAPS_NEAREST;

    if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
        *pCaps->TextureFilterCaps |= WINED3DPTFILTERCAPS_MAGFANISOTROPIC |
                                     WINED3DPTFILTERCAPS_MINFANISOTROPIC;
    }

    if (GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
        *pCaps->CubeTextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                                        WINED3DPTFILTERCAPS_MAGFPOINT        |
                                        WINED3DPTFILTERCAPS_MINFLINEAR       |
                                        WINED3DPTFILTERCAPS_MINFPOINT        |
                                        WINED3DPTFILTERCAPS_MIPFLINEAR       |
                                        WINED3DPTFILTERCAPS_MIPFPOINT        |
                                        WINED3DPTFILTERCAPS_LINEAR           |
                                        WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                                        WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                                        WINED3DPTFILTERCAPS_MIPLINEAR        |
                                        WINED3DPTFILTERCAPS_MIPNEAREST       |
                                        WINED3DPTFILTERCAPS_NEAREST;

        if (GL_SUPPORT(EXT_TEXTURE_FILTER_ANISOTROPIC)) {
            *pCaps->CubeTextureFilterCaps |= WINED3DPTFILTERCAPS_MAGFANISOTROPIC |
                                            WINED3DPTFILTERCAPS_MINFANISOTROPIC;
        }
    } else
        *pCaps->CubeTextureFilterCaps = 0;

    if (GL_SUPPORT(EXT_TEXTURE3D)) {
        *pCaps->VolumeTextureFilterCaps = WINED3DPTFILTERCAPS_MAGFLINEAR       |
                                          WINED3DPTFILTERCAPS_MAGFPOINT        |
                                          WINED3DPTFILTERCAPS_MINFLINEAR       |
                                          WINED3DPTFILTERCAPS_MINFPOINT        |
                                          WINED3DPTFILTERCAPS_MIPFLINEAR       |
                                          WINED3DPTFILTERCAPS_MIPFPOINT        |
                                          WINED3DPTFILTERCAPS_LINEAR           |
                                          WINED3DPTFILTERCAPS_LINEARMIPLINEAR  |
                                          WINED3DPTFILTERCAPS_LINEARMIPNEAREST |
                                          WINED3DPTFILTERCAPS_MIPLINEAR        |
                                          WINED3DPTFILTERCAPS_MIPNEAREST       |
                                          WINED3DPTFILTERCAPS_NEAREST;
    } else
        *pCaps->VolumeTextureFilterCaps = 0;

    *pCaps->TextureAddressCaps =  WINED3DPTADDRESSCAPS_INDEPENDENTUV |
                                  WINED3DPTADDRESSCAPS_CLAMP  |
                                  WINED3DPTADDRESSCAPS_WRAP;

    if (GL_SUPPORT(ARB_TEXTURE_BORDER_CLAMP)) {
        *pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_BORDER;
    }
    if (GL_SUPPORT(ARB_TEXTURE_MIRRORED_REPEAT)) {
        *pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRROR;
    }
    if (GL_SUPPORT(ATI_TEXTURE_MIRROR_ONCE)) {
        *pCaps->TextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRRORONCE;
    }

    if (GL_SUPPORT(EXT_TEXTURE3D)) {
        *pCaps->VolumeTextureAddressCaps =  WINED3DPTADDRESSCAPS_INDEPENDENTUV |
                                            WINED3DPTADDRESSCAPS_CLAMP  |
                                            WINED3DPTADDRESSCAPS_WRAP;
        if (GL_SUPPORT(ARB_TEXTURE_BORDER_CLAMP)) {
            *pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_BORDER;
        }
        if (GL_SUPPORT(ARB_TEXTURE_MIRRORED_REPEAT)) {
            *pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRROR;
        }
        if (GL_SUPPORT(ATI_TEXTURE_MIRROR_ONCE)) {
            *pCaps->VolumeTextureAddressCaps |= WINED3DPTADDRESSCAPS_MIRRORONCE;
        }
    } else
        *pCaps->VolumeTextureAddressCaps = 0;

    *pCaps->LineCaps = WINED3DLINECAPS_TEXTURE |
                       WINED3DLINECAPS_ZTEST;
                      /* FIXME: Add
                        WINED3DLINECAPS_BLEND
                        WINED3DLINECAPS_ALPHACMP
                        WINED3DLINECAPS_FOG */

    *pCaps->MaxTextureWidth  = GL_LIMITS(texture_size);
    *pCaps->MaxTextureHeight = GL_LIMITS(texture_size);

    if(GL_SUPPORT(EXT_TEXTURE3D))
        *pCaps->MaxVolumeExtent = GL_LIMITS(texture3d_size);
    else
        *pCaps->MaxVolumeExtent = 0;

    *pCaps->MaxTextureRepeat = 32768;
    *pCaps->MaxTextureAspectRatio = GL_LIMITS(texture_size);
    *pCaps->MaxVertexW = 1.0;

    *pCaps->GuardBandLeft = 0;
    *pCaps->GuardBandTop = 0;
    *pCaps->GuardBandRight = 0;
    *pCaps->GuardBandBottom = 0;

    *pCaps->ExtentsAdjust = 0;

    *pCaps->StencilCaps =  WINED3DSTENCILCAPS_DECRSAT |
                           WINED3DSTENCILCAPS_INCRSAT |
                           WINED3DSTENCILCAPS_INVERT  |
                           WINED3DSTENCILCAPS_KEEP    |
                           WINED3DSTENCILCAPS_REPLACE |
                           WINED3DSTENCILCAPS_ZERO;
    if (GL_SUPPORT(EXT_STENCIL_WRAP)) {
      *pCaps->StencilCaps |= WINED3DSTENCILCAPS_DECR  |
                             WINED3DSTENCILCAPS_INCR;
    }
    if ( This->dxVersion > 8 &&
        ( GL_SUPPORT(EXT_STENCIL_TWO_SIDE) ||
            GL_SUPPORT(ATI_SEPARATE_STENCIL) ) ) {
        *pCaps->StencilCaps |= WINED3DSTENCILCAPS_TWOSIDED;
    }

    *pCaps->FVFCaps = WINED3DFVFCAPS_PSIZE | 0x0008; /* 8 texture coords */

    *pCaps->TextureOpCaps =  WINED3DTEXOPCAPS_ADD         |
                             WINED3DTEXOPCAPS_ADDSIGNED   |
                             WINED3DTEXOPCAPS_ADDSIGNED2X |
                             WINED3DTEXOPCAPS_MODULATE    |
                             WINED3DTEXOPCAPS_MODULATE2X  |
                             WINED3DTEXOPCAPS_MODULATE4X  |
                             WINED3DTEXOPCAPS_SELECTARG1  |
                             WINED3DTEXOPCAPS_SELECTARG2  |
                             WINED3DTEXOPCAPS_DISABLE;

    if (GL_SUPPORT(ARB_TEXTURE_ENV_COMBINE) ||
        GL_SUPPORT(EXT_TEXTURE_ENV_COMBINE) ||
        GL_SUPPORT(NV_TEXTURE_ENV_COMBINE4)) {
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BLENDDIFFUSEALPHA |
                                WINED3DTEXOPCAPS_BLENDTEXTUREALPHA  |
                                WINED3DTEXOPCAPS_BLENDFACTORALPHA   |
                                WINED3DTEXOPCAPS_BLENDCURRENTALPHA  |
                                WINED3DTEXOPCAPS_LERP               |
                                WINED3DTEXOPCAPS_SUBTRACT;
    }
    if (GL_SUPPORT(ATI_TEXTURE_ENV_COMBINE3) ||
         GL_SUPPORT(NV_TEXTURE_ENV_COMBINE4)) {
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_ADDSMOOTH             |
                                WINED3DTEXOPCAPS_MULTIPLYADD            |
                                WINED3DTEXOPCAPS_MODULATEALPHA_ADDCOLOR |
                                WINED3DTEXOPCAPS_MODULATECOLOR_ADDALPHA |
                                WINED3DTEXOPCAPS_BLENDTEXTUREALPHAPM;
    }
    if (GL_SUPPORT(ARB_TEXTURE_ENV_DOT3))
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_DOTPRODUCT3;

    if (GL_SUPPORT(NV_REGISTER_COMBINERS)) {
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_MODULATEINVALPHA_ADDCOLOR |
                                 WINED3DTEXOPCAPS_MODULATEINVCOLOR_ADDALPHA;
    }

    if(GL_SUPPORT(ATI_ENVMAP_BUMPMAP)) {
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BUMPENVMAP;
    } else if(GL_SUPPORT(NV_TEXTURE_SHADER2)) {
        /* Bump mapping is supported already in NV_TEXTURE_SHADER, but that extension does
         * not support 3D textures. This asks for trouble if an app uses both bump mapping
         * and 3D textures. It also allows us to keep the code simpler by having texture
         * shaders constantly enabled.
         */
        *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BUMPENVMAP;
        /* TODO: Luminance bump map? */
    }
#if 0
    /* FIXME: Add
    *pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BUMPENVMAPLUMINANCE
                             WINED3DTEXOPCAPS_PREMODULATE */
#endif

    *pCaps->MaxTextureBlendStages   = GL_LIMITS(texture_stages);
    *pCaps->MaxSimultaneousTextures = GL_LIMITS(textures);
    *pCaps->MaxUserClipPlanes       = GL_LIMITS(clipplanes);
    *pCaps->MaxActiveLights         = GL_LIMITS(lights);

    *pCaps->MaxVertexBlendMatrices      = GL_LIMITS(blends);
    *pCaps->MaxVertexBlendMatrixIndex   = 0;

    *pCaps->MaxAnisotropy   = GL_LIMITS(anisotropy);
    *pCaps->MaxPointSize    = GL_LIMITS(pointsize);


    *pCaps->VertexProcessingCaps = WINED3DVTXPCAPS_DIRECTIONALLIGHTS |
                                   WINED3DVTXPCAPS_MATERIALSOURCE7   |
                                   WINED3DVTXPCAPS_POSITIONALLIGHTS  |
                                   WINED3DVTXPCAPS_LOCALVIEWER       |
                                   WINED3DVTXPCAPS_VERTEXFOG         |
                                   WINED3DVTXPCAPS_TEXGEN;
                                  /* FIXME: Add 
                                     D3DVTXPCAPS_TWEENING, D3DVTXPCAPS_TEXGEN_SPHEREMAP */

    *pCaps->MaxPrimitiveCount   = 0xFFFFF; /* For now set 2^20-1 which is used by most >=Geforce3/Radeon8500 cards */
    *pCaps->MaxVertexIndex      = 0xFFFFF;
    *pCaps->MaxStreams          = MAX_STREAMS;
    *pCaps->MaxStreamStride     = 1024;

    if (vs_selected_mode == SHADER_GLSL) {
        /* Nvidia Geforce6/7 or Ati R4xx/R5xx cards with GLSL support, support VS 3.0 but older Nvidia/Ati
         * models with GLSL support only support 2.0. In case of nvidia we can detect VS 2.0 support using
         * vs_nv_version which is based on NV_vertex_program.
         * For Ati cards there's no way using glsl (it abstracts the lowlevel info away) and also not
         * using ARB_vertex_program. It is safe to assume that when a card supports pixel shader 2.0 it
         * supports vertex shader 2.0 too and the way around. We can detect ps2.0 using the maximum number
         * of native instructions, so use that here. For more info see the pixel shader versioning code below. */
        if((GLINFO_LOCATION.vs_nv_version == VS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
            *pCaps->VertexShaderVersion = WINED3DVS_VERSION(2,0);
        else
            *pCaps->VertexShaderVersion = WINED3DVS_VERSION(3,0);
        TRACE_(d3d_caps)("Hardware vertex shader version %d.%d enabled (GLSL)\n", (*pCaps->VertexShaderVersion >> 8) & 0xff, *pCaps->VertexShaderVersion & 0xff);
    } else if (vs_selected_mode == SHADER_ARB) {
        *pCaps->VertexShaderVersion = WINED3DVS_VERSION(1,1);
        TRACE_(d3d_caps)("Hardware vertex shader version 1.1 enabled (ARB_PROGRAM)\n");
    } else {
        *pCaps->VertexShaderVersion  = 0;
        TRACE_(d3d_caps)("Vertex shader functionality not available\n");
    }

    *pCaps->MaxVertexShaderConst = GL_LIMITS(vshader_constantsF);

    if (ps_selected_mode == SHADER_GLSL) {
        /* Older DX9-class videocards (GeforceFX / Radeon >9500/X*00) only support pixel shader 2.0/2.0a/2.0b.
         * In OpenGL the extensions related to GLSL abstract lowlevel GL info away which is needed
         * to distinguish between 2.0 and 3.0 (and 2.0a/2.0b). In case of Nvidia we use their fragment
         * program extensions. On other hardware including ATI GL_ARB_fragment_program offers the info
         * in max native instructions. Intel and others also offer the info in this extension but they
         * don't support GLSL (at least on Windows).
         *
         * PS2.0 requires at least 96 instructions, 2.0a/2.0b go upto 512. Assume that if the number
         * of instructions is 512 or less we have to do with ps2.0 hardware.
         * NOTE: ps3.0 hardware requires 512 or more instructions but ati and nvidia offer 'enough' (1024 vs 4096) on their most basic ps3.0 hardware.
         */
        if((GLINFO_LOCATION.ps_nv_version == PS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
            *pCaps->PixelShaderVersion = WINED3DPS_VERSION(2,0);
        else
            *pCaps->PixelShaderVersion = WINED3DPS_VERSION(3,0);
        /* FIXME: The following line is card dependent. -8.0 to 8.0 is the
         * Direct3D minimum requirement.
         *
         * Both GL_ARB_fragment_program and GLSL require a "maximum representable magnitude"
         * of colors to be 2^10, and 2^32 for other floats. Should we use 1024 here?
         *
         * The problem is that the refrast clamps temporary results in the shader to
         * [-MaxValue;+MaxValue]. If the card's max value is bigger than the one we advertize here,
         * then applications may miss the clamping behavior. On the other hand, if it is smaller,
         * the shader will generate incorrect results too. Unfortunately, GL deliberately doesn't
         * offer a way to query this.
         */
        *pCaps->PixelShader1xMaxValue = 8.0;
        TRACE_(d3d_caps)("Hardware pixel shader version %d.%d enabled (GLSL)\n", (*pCaps->PixelShaderVersion >> 8) & 0xff, *pCaps->PixelShaderVersion & 0xff);
    } else if (ps_selected_mode == SHADER_ARB) {
        *pCaps->PixelShaderVersion    = WINED3DPS_VERSION(1,4);
        *pCaps->PixelShader1xMaxValue = 8.0;
        TRACE_(d3d_caps)("Hardware pixel shader version 1.4 enabled (ARB_PROGRAM)\n");
    } else {
        *pCaps->PixelShaderVersion    = 0;
        *pCaps->PixelShader1xMaxValue = 0.0;
        TRACE_(d3d_caps)("Pixel shader functionality not available\n");
    }

    /* ------------------------------------------------
       The following fields apply to d3d9 only
       ------------------------------------------------ */
    if (This->dxVersion > 8) {
        /* d3d9.dll sets D3DDEVCAPS2_CAN_STRETCHRECT_FROM_TEXTURES here because StretchRects is implemented in d3d9 */
        *pCaps->DevCaps2                          = WINED3DDEVCAPS2_STREAMOFFSET;
        /* TODO: VS3.0 needs at least D3DDEVCAPS2_VERTEXELEMENTSCANSHARESTREAMOFFSET */
        *pCaps->MaxNpatchTessellationLevel        = 0;
        *pCaps->MasterAdapterOrdinal              = 0;
        *pCaps->AdapterOrdinalInGroup             = 0;
        *pCaps->NumberOfAdaptersInGroup           = 1;

        if(*pCaps->VertexShaderVersion >= WINED3DVS_VERSION(2,0)) {
            /* OpenGL supports all the formats below, perhaps not always
             * without conversion, but it supports them.
             * Further GLSL doesn't seem to have an official unsigned type so
             * don't advertise it yet as I'm not sure how we handle it.
             * We might need to add some clamping in the shader engine to
             * support it.
             * TODO: WINED3DDTCAPS_USHORT2N, WINED3DDTCAPS_USHORT4N, WINED3DDTCAPS_UDEC3, WINED3DDTCAPS_DEC3N */
            *pCaps->DeclTypes = WINED3DDTCAPS_UBYTE4    |
                                WINED3DDTCAPS_UBYTE4N   |
                                WINED3DDTCAPS_SHORT2N   |
                                WINED3DDTCAPS_SHORT4N;
            if (GL_SUPPORT(NV_HALF_FLOAT)) {
                *pCaps->DeclTypes |=
                                WINED3DDTCAPS_FLOAT16_2 |
                                WINED3DDTCAPS_FLOAT16_4;
            }
        } else
            *pCaps->DeclTypes                         = 0;

        *pCaps->NumSimultaneousRTs = GL_LIMITS(buffers);

            
        *pCaps->StretchRectFilterCaps             = WINED3DPTFILTERCAPS_MINFPOINT  |
                                                    WINED3DPTFILTERCAPS_MAGFPOINT  |
                                                    WINED3DPTFILTERCAPS_MINFLINEAR |
                                                    WINED3DPTFILTERCAPS_MAGFLINEAR;
        *pCaps->VertexTextureFilterCaps           = 0;
        
        if(*pCaps->VertexShaderVersion == WINED3DVS_VERSION(3,0)) {
            /* Where possible set the caps based on OpenGL extensions and if they aren't set (in case of software rendering)
               use the VS 3.0 from MSDN or else if there's OpenGL spec use a hardcoded value minimum VS3.0 value. */
            *pCaps->VS20Caps.Caps                     = WINED3DVS20CAPS_PREDICATION;
            *pCaps->VS20Caps.DynamicFlowControlDepth  = WINED3DVS20_MAX_DYNAMICFLOWCONTROLDEPTH; /* VS 3.0 requires MAX_DYNAMICFLOWCONTROLDEPTH (24) */
            *pCaps->VS20Caps.NumTemps                 = max(32, GLINFO_LOCATION.vs_arb_max_temps);
            *pCaps->VS20Caps.StaticFlowControlDepth   = WINED3DVS20_MAX_STATICFLOWCONTROLDEPTH ; /* level of nesting in loops / if-statements; VS 3.0 requires MAX (4) */

            *pCaps->MaxVShaderInstructionsExecuted    = 65535; /* VS 3.0 needs at least 65535, some cards even use 2^32-1 */
            *pCaps->MaxVertexShader30InstructionSlots = max(512, GLINFO_LOCATION.vs_arb_max_instructions);
        } else if(*pCaps->VertexShaderVersion == WINED3DVS_VERSION(2,0)) {
            *pCaps->VS20Caps.Caps                     = 0;
            *pCaps->VS20Caps.DynamicFlowControlDepth  = WINED3DVS20_MIN_DYNAMICFLOWCONTROLDEPTH;
            *pCaps->VS20Caps.NumTemps                 = max(12, GLINFO_LOCATION.vs_arb_max_temps);
            *pCaps->VS20Caps.StaticFlowControlDepth   = 1;    

            *pCaps->MaxVShaderInstructionsExecuted    = 65535;
            *pCaps->MaxVertexShader30InstructionSlots = 0;
        } else { /* VS 1.x */
            *pCaps->VS20Caps.Caps                     = 0;
            *pCaps->VS20Caps.DynamicFlowControlDepth  = 0;
            *pCaps->VS20Caps.NumTemps                 = 0;
            *pCaps->VS20Caps.StaticFlowControlDepth   = 0;    

            *pCaps->MaxVShaderInstructionsExecuted    = 0;
            *pCaps->MaxVertexShader30InstructionSlots = 0;        
        }

        if(*pCaps->PixelShaderVersion == WINED3DPS_VERSION(3,0)) {
            /* Where possible set the caps based on OpenGL extensions and if they aren't set (in case of software rendering)
               use the PS 3.0 from MSDN or else if there's OpenGL spec use a hardcoded value minimum PS 3.0 value. */
            
            /* Caps is more or less undocumented on MSDN but it appears to be used for PS20Caps based on results from R9600/FX5900/Geforce6800 cards from Windows */
            *pCaps->PS20Caps.Caps                     = WINED3DPS20CAPS_ARBITRARYSWIZZLE     |
                                                        WINED3DPS20CAPS_GRADIENTINSTRUCTIONS |
                                                        WINED3DPS20CAPS_PREDICATION          |
                                                        WINED3DPS20CAPS_NODEPENDENTREADLIMIT |
                                                        WINED3DPS20CAPS_NOTEXINSTRUCTIONLIMIT;
            *pCaps->PS20Caps.DynamicFlowControlDepth  = WINED3DPS20_MAX_DYNAMICFLOWCONTROLDEPTH; /* PS 3.0 requires MAX_DYNAMICFLOWCONTROLDEPTH (24) */
            *pCaps->PS20Caps.NumTemps                 = max(32, GLINFO_LOCATION.ps_arb_max_temps);
            *pCaps->PS20Caps.StaticFlowControlDepth   = WINED3DPS20_MAX_STATICFLOWCONTROLDEPTH; /* PS 3.0 requires MAX_STATICFLOWCONTROLDEPTH (4) */
            *pCaps->PS20Caps.NumInstructionSlots      = WINED3DPS20_MAX_NUMINSTRUCTIONSLOTS; /* PS 3.0 requires MAX_NUMINSTRUCTIONSLOTS (512) */

            *pCaps->MaxPShaderInstructionsExecuted    = 65535;
            *pCaps->MaxPixelShader30InstructionSlots  = max(WINED3DMIN30SHADERINSTRUCTIONS, GLINFO_LOCATION.ps_arb_max_instructions);
        } else if(*pCaps->PixelShaderVersion == WINED3DPS_VERSION(2,0)) {
            /* Below we assume PS2.0 specs, not extended 2.0a(GeforceFX)/2.0b(Radeon R3xx) ones */
            *pCaps->PS20Caps.Caps                     = 0;
            *pCaps->PS20Caps.DynamicFlowControlDepth  = 0; /* WINED3DVS20_MIN_DYNAMICFLOWCONTROLDEPTH = 0 */
            *pCaps->PS20Caps.NumTemps                 = max(12, GLINFO_LOCATION.ps_arb_max_temps);
            *pCaps->PS20Caps.StaticFlowControlDepth   = WINED3DPS20_MIN_STATICFLOWCONTROLDEPTH; /* Minumum: 1 */
            *pCaps->PS20Caps.NumInstructionSlots      = WINED3DPS20_MIN_NUMINSTRUCTIONSLOTS; /* Minimum number (64 ALU + 32 Texture), a GeforceFX uses 512 */

            *pCaps->MaxPShaderInstructionsExecuted    = 512; /* Minimum value, a GeforceFX uses 1024 */
            *pCaps->MaxPixelShader30InstructionSlots  = 0;
        } else { /* PS 1.x */
            *pCaps->PS20Caps.Caps                     = 0;
            *pCaps->PS20Caps.DynamicFlowControlDepth  = 0;
            *pCaps->PS20Caps.NumTemps                 = 0;
            *pCaps->PS20Caps.StaticFlowControlDepth   = 0;
            *pCaps->PS20Caps.NumInstructionSlots      = 0;

            *pCaps->MaxPShaderInstructionsExecuted    = 0;
            *pCaps->MaxPixelShader30InstructionSlots  = 0;
        }
    }

    return WINED3D_OK;
}

static unsigned int glsl_program_key_hash(void *key) {
    glsl_program_key_t *k = (glsl_program_key_t *)key;

    unsigned int hash = k->vshader | k->pshader << 16;
    hash += ~(hash << 15);
    hash ^=  (hash >> 10);
    hash +=  (hash << 3);
    hash ^=  (hash >> 6);
    hash += ~(hash << 11);
    hash ^=  (hash >> 16);

    return hash;
}

static BOOL glsl_program_key_compare(void *keya, void *keyb) {
    glsl_program_key_t *ka = (glsl_program_key_t *)keya;
    glsl_program_key_t *kb = (glsl_program_key_t *)keyb;

    return ka->vshader == kb->vshader && ka->pshader == kb->pshader;
}

/* Note due to structure differences between dx8 and dx9 D3DPRESENT_PARAMETERS,
   and fields being inserted in the middle, a new structure is used in place    */
static HRESULT  WINAPI IWineD3DImpl_CreateDevice(IWineD3D *iface, UINT Adapter, WINED3DDEVTYPE DeviceType, HWND hFocusWindow,
                                           DWORD BehaviourFlags, IWineD3DDevice** ppReturnedDeviceInterface,
                                           IUnknown *parent) {

    IWineD3DDeviceImpl *object  = NULL;
    IWineD3DImpl       *This    = (IWineD3DImpl *)iface;
    HDC hDC;
    int i;

    /* Validate the adapter number. If no adapters are available(no GL), ignore the adapter
     * number and create a device without a 3D adapter for 2D only operation.
     */
    if (IWineD3D_GetAdapterCount(iface) && Adapter >= IWineD3D_GetAdapterCount(iface)) {
        return WINED3DERR_INVALIDCALL;
    }

    /* Create a WineD3DDevice object */
    object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IWineD3DDeviceImpl));
    *ppReturnedDeviceInterface = (IWineD3DDevice *)object;
    TRACE("Created WineD3DDevice object @ %p\n", object);
    if (NULL == object) {
      return WINED3DERR_OUTOFVIDEOMEMORY;
    }

    /* Set up initial COM information */
    object->lpVtbl  = &IWineD3DDevice_Vtbl;
    object->ref     = 1;
    object->wineD3D = iface;
    object->adapter = numAdapters ? &Adapters[Adapter] : NULL;
    IWineD3D_AddRef(object->wineD3D);
    object->parent  = parent;
    list_init(&object->resources);

    if(This->dxVersion == 7) {
        object->surface_alignment = 8;
    } else {
        object->surface_alignment = 4;
    }
    object->posFixup[0] = 1.0; /* This is needed to get the x coord unmodified through a MAD */

    /* Set the state up as invalid until the device is fully created */
    object->state   = WINED3DERR_DRIVERINTERNALERROR;

    TRACE("(%p)->(Adptr:%d, DevType: %x, FocusHwnd: %p, BehFlags: %x, RetDevInt: %p)\n", This, Adapter, DeviceType,
          hFocusWindow, BehaviourFlags, ppReturnedDeviceInterface);

    /* Save the creation parameters */
    object->createParms.AdapterOrdinal = Adapter;
    object->createParms.DeviceType     = DeviceType;
    object->createParms.hFocusWindow   = hFocusWindow;
    object->createParms.BehaviorFlags  = BehaviourFlags;

    /* Initialize other useful values */
    object->adapterNo                    = Adapter;
    object->devType                      = DeviceType;

    select_shader_mode(&GLINFO_LOCATION, DeviceType, &object->ps_selected_mode, &object->vs_selected_mode);
    if (object->ps_selected_mode == SHADER_GLSL || object->vs_selected_mode == SHADER_GLSL) {
        object->shader_backend = &glsl_shader_backend;
        object->glsl_program_lookup = hash_table_create(&glsl_program_key_hash, &glsl_program_key_compare);
    } else if (object->ps_selected_mode == SHADER_ARB || object->vs_selected_mode == SHADER_ARB) {
        object->shader_backend = &arb_program_shader_backend;
    } else {
        object->shader_backend = &none_shader_backend;
    }

    /* set the state of the device to valid */
    object->state = WINED3D_OK;

    /* Get the initial screen setup for ddraw */
    object->ddraw_width = GetSystemMetrics(SM_CXSCREEN);
    object->ddraw_height = GetSystemMetrics(SM_CYSCREEN);
    hDC = GetDC(0);
    object->ddraw_format = pixelformat_for_depth(GetDeviceCaps(hDC, BITSPIXEL) * GetDeviceCaps(hDC, PLANES));
    ReleaseDC(0, hDC);

    for(i = 0; i < PATCHMAP_SIZE; i++) {
        list_init(&object->patches[i]);
    }
    return WINED3D_OK;
}
#undef GLINFO_LOCATION

static HRESULT WINAPI IWineD3DImpl_GetParent(IWineD3D *iface, IUnknown **pParent) {
    IWineD3DImpl *This = (IWineD3DImpl *)iface;
    IUnknown_AddRef(This->parent);
    *pParent = This->parent;
    return WINED3D_OK;
}

ULONG WINAPI D3DCB_DefaultDestroySurface(IWineD3DSurface *pSurface) {
    IUnknown* surfaceParent;
    TRACE("(%p) call back\n", pSurface);

    /* Now, release the parent, which will take care of cleaning up the surface for us */
    IWineD3DSurface_GetParent(pSurface, &surfaceParent);
    IUnknown_Release(surfaceParent);
    return IUnknown_Release(surfaceParent);
}

ULONG WINAPI D3DCB_DefaultDestroyVolume(IWineD3DVolume *pVolume) {
    IUnknown* volumeParent;
    TRACE("(%p) call back\n", pVolume);

    /* Now, release the parent, which will take care of cleaning up the volume for us */
    IWineD3DVolume_GetParent(pVolume, &volumeParent);
    IUnknown_Release(volumeParent);
    return IUnknown_Release(volumeParent);
}

static BOOL implementation_is_apple(WineD3D_GL_Info *gl_info) {
    /* MacOS has various specialities in the extensions it advertises. Some have to be loaded from
     * the opengl 1.2+ core, while other extensions are advertised, but software emulated. So try to
     * detect the Apple OpenGL implementation to apply some extension fixups afterwards.
     *
     * Detecting this isn't really easy. The vendor string doesn't mention Apple. Compile-time checks
     * aren't sufficient either because a Linux binary may display on a macos X server via remote X11.
     * So try to detect the GL implementation by looking at certain Apple extensions. Some extensions
     * like client storage might be supported on other implementations too, but GL_APPLE_flush_render
     * is specific to the MacOS window management, and GL_APPLE_ycbcr_422 is a Quicktime specific, so
     * it the chance that other implementations support it is rather rare since Win32 Quicktime uses
     * DirectDraw, not OpenGL.
     */
    if(gl_info->supported[APPLE_FENCE] &&
       gl_info->supported[APPLE_CLIENT_STORAGE] &&
       gl_info->supported[APPLE_FLUSH_RENDER] &&
       gl_info->supported[APPLE_YCBCR_422]) {
        TRACE_(d3d_caps)("GL_APPLE_fence, GL_APPLE_client_storage, GL_APPLE_flush_render and GL_ycbcr_422 are supported\n");
        TRACE_(d3d_caps)("Activating MacOS fixups\n");
        return TRUE;
    } else {
        TRACE_(d3d_caps)("Apple extensions are not supported\n");
        TRACE_(d3d_caps)("Not activating MacOS fixups\n");
        return FALSE;
    }
}

static void fixup_extensions(WineD3D_GL_Info *gl_info) {
    if(implementation_is_apple(gl_info)) {
        /* MacOS advertises more GLSL vertex shader uniforms than support on hardware, and if more are
         * used it falls back to software. While the compiler can detect if the shader uses all declared
         * uniforms, the optimization fails if the shader uses relative addressing. So any GLSL shader
         * using relative addressing falls back to software.
         *
         * ARB vp gives the correct amount of uniforms, so use it instead of GLSL
         */
        if(gl_info->vs_glsl_constantsF <= gl_info->vs_arb_constantsF) {
            FIXME("GLSL doesn't advertise more vertex shader uniforms than ARB. Driver fixup outdated?\n");
        } else {
            TRACE("Driver claims %u GLSL vs uniforms, replacing with %u ARB vp uniforms\n",
                  gl_info->vs_glsl_constantsF, gl_info->vs_arb_constantsF);
            gl_info->vs_glsl_constantsF = gl_info->vs_arb_constantsF;
        }

        /* MacOS advertises GL_ARB_texture_non_power_of_two on ATI r500 and earlier cards, although
         * these cards only support GL_ARB_texture_rectangle(D3DPTEXTURECAPS_NONPOW2CONDITIONAL).
         * If real NP2 textures are used, the driver falls back to software. So remove the supported
         * flag for this extension
         */
        if(gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] && gl_info->gl_vendor == VENDOR_ATI) {
            if(gl_info->gl_card == CARD_ATI_RADEON_X700 || gl_info->gl_card == CARD_ATI_RADEON_X1600 ||
               gl_info->gl_card == CARD_ATI_RADEON_9500 || gl_info->gl_card == CARD_ATI_RADEON_8500  ||
               gl_info->gl_card == CARD_ATI_RADEON_7200 || gl_info->gl_card == CARD_ATI_RAGE_128PRO) {
                TRACE("GL_ARB_texture_non_power_of_two advertised on R500 or earlier card, removing\n");
                gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] = FALSE;
            }
        }
    }
}

#define PUSH1(att)        attribs[nAttribs++] = (att);
#define GLINFO_LOCATION (Adapters[0].gl_info)
BOOL InitAdapters(void) {
    static HMODULE mod_gl;
    BOOL ret;
    int ps_selected_mode, vs_selected_mode;

    /* No need to hold any lock. The calling library makes sure only one thread calls
     * wined3d simultaneously
     */
    if(numAdapters > 0) return TRUE;

    TRACE("Initializing adapters\n");

    if(!mod_gl) {
#ifdef USE_WIN32_OPENGL
#define USE_GL_FUNC(pfn) pfn = (void*)GetProcAddress(mod_gl, #pfn);
        mod_gl = LoadLibraryA("opengl32.dll");
        if(!mod_gl) {
            ERR("Can't load opengl32.dll!\n");
            return FALSE;
        }
#else
#define USE_GL_FUNC(pfn) pfn = (void*)pwglGetProcAddress(#pfn);
        /* To bypass the opengl32 thunks load wglGetProcAddress from gdi32 (glXGetProcAddress wrapper) instead of opengl32's */
        mod_gl = GetModuleHandleA("gdi32.dll");
#endif
    }

/* Load WGL core functions from opengl32.dll */
#define USE_WGL_FUNC(pfn) p##pfn = (void*)GetProcAddress(mod_gl, #pfn);
    WGL_FUNCS_GEN;
#undef USE_WGL_FUNC

    if(!pwglGetProcAddress) {
        ERR("Unable to load wglGetProcAddress!\n");
        return FALSE;
    }

/* Dynamically load all GL core functions */
    GL_FUNCS_GEN;
#undef USE_GL_FUNC

    /* For now only one default adapter */
    {
        int iPixelFormat;
        int attribs[8];
        int values[8];
        int nAttribs = 0;
        int res;
        WineD3D_PixelFormat *cfgs;
        int attribute;
        DISPLAY_DEVICEW DisplayDevice;
        HDC hdc;

        TRACE("Initializing default adapter\n");
        Adapters[0].monitorPoint.x = -1;
        Adapters[0].monitorPoint.y = -1;

        if (!WineD3D_CreateFakeGLContext()) {
            ERR("Failed to get a gl context for default adapter\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        ret = IWineD3DImpl_FillGLCaps(&Adapters[0].gl_info);
        if(!ret) {
            ERR("Failed to initialize gl caps for default adapter\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }
        ret = initPixelFormats(&Adapters[0].gl_info);
        if(!ret) {
            ERR("Failed to init gl formats\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        hdc = pwglGetCurrentDC();
        if(!hdc) {
            ERR("Failed to get gl HDC\n");
            HeapFree(GetProcessHeap(), 0, Adapters);
            WineD3D_ReleaseFakeGLContext();
            return FALSE;
        }

        Adapters[0].driver = "Display";
        Adapters[0].description = "Direct3D HAL";

        /* Use the VideoRamSize registry setting when set */
        if(wined3d_settings.emulated_textureram)
            Adapters[0].TextureRam = wined3d_settings.emulated_textureram;
        else
            Adapters[0].TextureRam = Adapters[0].gl_info.vidmem;
        Adapters[0].UsedTextureRam = 0;
        TRACE("Emulating %dMB of texture ram\n", Adapters[0].TextureRam/(1024*1024));

        /* Initialize the Adapter's DeviceName which is required for ChangeDisplaySettings and friends */
        DisplayDevice.cb = sizeof(DisplayDevice);
        EnumDisplayDevicesW(NULL, 0 /* Adapter 0 = iDevNum 0 */, &DisplayDevice, 0);
        TRACE("DeviceName: %s\n", debugstr_w(DisplayDevice.DeviceName));
        strcpyW(Adapters[0].DeviceName, DisplayDevice.DeviceName);

        attribute = WGL_NUMBER_PIXEL_FORMATS_ARB;
        GL_EXTCALL(wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, &attribute, &Adapters[0].nCfgs));

        Adapters[0].cfgs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, Adapters[0].nCfgs *sizeof(WineD3D_PixelFormat));
        cfgs = Adapters[0].cfgs;
        PUSH1(WGL_RED_BITS_ARB)
        PUSH1(WGL_GREEN_BITS_ARB)
        PUSH1(WGL_BLUE_BITS_ARB)
        PUSH1(WGL_ALPHA_BITS_ARB)
        PUSH1(WGL_DEPTH_BITS_ARB)
        PUSH1(WGL_STENCIL_BITS_ARB)

        for(iPixelFormat=1; iPixelFormat<=Adapters[0].nCfgs; iPixelFormat++) {
            res = GL_EXTCALL(wglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0, nAttribs, attribs, values));

            if(!res)
                continue;

            /* Cache the pixel format */
            cfgs->iPixelFormat = iPixelFormat;
            cfgs->redSize = values[0];
            cfgs->greenSize = values[1];
            cfgs->blueSize = values[2];
            cfgs->alphaSize = values[3];
            cfgs->depthSize = values[4];
            cfgs->stencilSize = values[5];

            TRACE("iPixelFormat=%d, RGBA=%d/%d/%d/%d, depth=%d, stencil=%d\n", cfgs->iPixelFormat, cfgs->redSize, cfgs->greenSize, cfgs->blueSize, cfgs->alphaSize, cfgs->depthSize, cfgs->stencilSize);
            cfgs++;
        }
        WineD3D_ReleaseFakeGLContext();

        fixup_extensions(&Adapters[0].gl_info);

        select_shader_mode(&Adapters[0].gl_info, WINED3DDEVTYPE_HAL, &ps_selected_mode, &vs_selected_mode);
        select_shader_max_constants(ps_selected_mode, vs_selected_mode, &Adapters[0].gl_info);

    }
    numAdapters = 1;
    TRACE("%d adapters successfully initialized\n", numAdapters);

    return TRUE;
}
#undef PUSH1
#undef GLINFO_LOCATION

/**********************************************************
 * IWineD3D VTbl follows
 **********************************************************/

const IWineD3DVtbl IWineD3D_Vtbl =
{
    /* IUnknown */
    IWineD3DImpl_QueryInterface,
    IWineD3DImpl_AddRef,
    IWineD3DImpl_Release,
    /* IWineD3D */
    IWineD3DImpl_GetParent,
    IWineD3DImpl_GetAdapterCount,
    IWineD3DImpl_RegisterSoftwareDevice,
    IWineD3DImpl_GetAdapterMonitor,
    IWineD3DImpl_GetAdapterModeCount,
    IWineD3DImpl_EnumAdapterModes,
    IWineD3DImpl_GetAdapterDisplayMode,
    IWineD3DImpl_GetAdapterIdentifier,
    IWineD3DImpl_CheckDeviceMultiSampleType,
    IWineD3DImpl_CheckDepthStencilMatch,
    IWineD3DImpl_CheckDeviceType,
    IWineD3DImpl_CheckDeviceFormat,
    IWineD3DImpl_CheckDeviceFormatConversion,
    IWineD3DImpl_GetDeviceCaps,
    IWineD3DImpl_CreateDevice
};