dlls/wined3d/pixelshader.c - wine - Git at Google

 /*
  * shaders implementation
  *
  * Copyright 2002-2003 Jason Edmeades
  * Copyright 2002-2003 Raphael Junqueira
  * Copyright 2004 Christian Costa
  * Copyright 2005 Oliver Stieber
  * Copyright 2006 Ivan Gyurdiev
  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
  *
  * 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
  */

 #include "config.h"

 #include <math.h>
 #include <stdio.h>

 #include "wined3d_private.h"

 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);

 #define GLINFO_LOCATION ((IWineD3DDeviceImpl *) This->baseShader.device)->adapter->gl_info

 static HRESULT  WINAPI IWineD3DPixelShaderImpl_QueryInterface(IWineD3DPixelShader *iface, REFIID riid, LPVOID *ppobj) {
     TRACE("iface %p, riid %s, ppobj %p\n", iface, debugstr_guid(riid), ppobj);

     if (IsEqualGUID(riid, &IID_IWineD3DPixelShader)
             || IsEqualGUID(riid, &IID_IWineD3DBaseShader)
             || IsEqualGUID(riid, &IID_IWineD3DBase)
             || IsEqualGUID(riid, &IID_IUnknown))
     {
         IUnknown_AddRef(iface);
         *ppobj = iface;
         return S_OK;
     }

     WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));

     *ppobj = NULL;
     return E_NOINTERFACE;
 }

 static ULONG  WINAPI IWineD3DPixelShaderImpl_AddRef(IWineD3DPixelShader *iface) {
     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
     ULONG refcount = InterlockedIncrement(&This->baseShader.ref);

     TRACE("%p increasing refcount to %u\n", This, refcount);

     return refcount;
 }

 static ULONG  WINAPI IWineD3DPixelShaderImpl_Release(IWineD3DPixelShader *iface) {
     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
     ULONG refcount = InterlockedDecrement(&This->baseShader.ref);

     TRACE("%p decreasing refcount to %u\n", This, refcount);

     if (!refcount)
     {
         shader_cleanup((IWineD3DBaseShader *)iface);
         HeapFree(GetProcessHeap(), 0, This);
     }

     return refcount;
 }

 /* *******************************************
    IWineD3DPixelShader IWineD3DPixelShader parts follow
    ******************************************* */

 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetParent(IWineD3DPixelShader *iface, IUnknown** parent){
     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;

     *parent = This->parent;
     IUnknown_AddRef(*parent);
     TRACE("(%p) : returning %p\n", This, *parent);
     return WINED3D_OK;
 }

 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetDevice(IWineD3DPixelShader* iface, IWineD3DDevice **pDevice){
     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
     IWineD3DDevice_AddRef(This->baseShader.device);
     *pDevice = This->baseShader.device;
     TRACE("(%p) returning %p\n", This, *pDevice);
     return WINED3D_OK;
 }


 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetFunction(IWineD3DPixelShader* impl, VOID* pData, UINT* pSizeOfData) {
   IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)impl;
   TRACE("(%p) : pData(%p), pSizeOfData(%p)\n", This, pData, pSizeOfData);

   if (NULL == pData) {
     *pSizeOfData = This->baseShader.functionLength;
     return WINED3D_OK;
   }
   if (*pSizeOfData < This->baseShader.functionLength) {
     /* MSDN claims (for d3d8 at least) that if *pSizeOfData is smaller
      * than the required size we should write the required size and
      * return D3DERR_MOREDATA. That's not actually true. */
     return WINED3DERR_INVALIDCALL;
   }

   TRACE("(%p) : GetFunction copying to %p\n", This, pData);
   memcpy(pData, This->baseShader.function, This->baseShader.functionLength);

   return WINED3D_OK;
 }

 static void pshader_set_limits(IWineD3DPixelShaderImpl *This)
 {
     DWORD shader_version = WINED3D_SHADER_VERSION(This->baseShader.reg_maps.shader_version.major,
             This->baseShader.reg_maps.shader_version.minor);

     This->baseShader.limits.attributes = 0;
     This->baseShader.limits.address = 0;
     This->baseShader.limits.packed_output = 0;

     switch (shader_version)
     {
         case WINED3D_SHADER_VERSION(1,0):
         case WINED3D_SHADER_VERSION(1,1):
         case WINED3D_SHADER_VERSION(1,2):
         case WINED3D_SHADER_VERSION(1,3):
             This->baseShader.limits.temporary = 2;
             This->baseShader.limits.constant_float = 8;
             This->baseShader.limits.constant_int = 0;
             This->baseShader.limits.constant_bool = 0;
             This->baseShader.limits.texcoord = 4;
             This->baseShader.limits.sampler = 4;
             This->baseShader.limits.packed_input = 0;
             This->baseShader.limits.label = 0;
             break;

         case WINED3D_SHADER_VERSION(1,4):
             This->baseShader.limits.temporary = 6;
             This->baseShader.limits.constant_float = 8;
             This->baseShader.limits.constant_int = 0;
             This->baseShader.limits.constant_bool = 0;
             This->baseShader.limits.texcoord = 6;
             This->baseShader.limits.sampler = 6;
             This->baseShader.limits.packed_input = 0;
             This->baseShader.limits.label = 0;
             break;

         /* FIXME: temporaries must match D3DPSHADERCAPS2_0.NumTemps */
         case WINED3D_SHADER_VERSION(2,0):
             This->baseShader.limits.temporary = 32;
             This->baseShader.limits.constant_float = 32;
             This->baseShader.limits.constant_int = 16;
             This->baseShader.limits.constant_bool = 16;
             This->baseShader.limits.texcoord = 8;
             This->baseShader.limits.sampler = 16;
             This->baseShader.limits.packed_input = 0;
             break;

         case WINED3D_SHADER_VERSION(2,1):
             This->baseShader.limits.temporary = 32;
             This->baseShader.limits.constant_float = 32;
             This->baseShader.limits.constant_int = 16;
             This->baseShader.limits.constant_bool = 16;
             This->baseShader.limits.texcoord = 8;
             This->baseShader.limits.sampler = 16;
             This->baseShader.limits.packed_input = 0;
             This->baseShader.limits.label = 16;
             break;

         case WINED3D_SHADER_VERSION(4,0):
             FIXME("Using 3.0 limits for 4.0 shader\n");
             /* Fall through */

         case WINED3D_SHADER_VERSION(3,0):
             This->baseShader.limits.temporary = 32;
             This->baseShader.limits.constant_float = 224;
             This->baseShader.limits.constant_int = 16;
             This->baseShader.limits.constant_bool = 16;
             This->baseShader.limits.texcoord = 0;
             This->baseShader.limits.sampler = 16;
             This->baseShader.limits.packed_input = 12;
             This->baseShader.limits.label = 16; /* FIXME: 2048 */
             break;

         default:
             This->baseShader.limits.temporary = 32;
             This->baseShader.limits.constant_float = 32;
             This->baseShader.limits.constant_int = 16;
             This->baseShader.limits.constant_bool = 16;
             This->baseShader.limits.texcoord = 8;
             This->baseShader.limits.sampler = 16;
             This->baseShader.limits.packed_input = 0;
             This->baseShader.limits.label = 0;
             FIXME("Unrecognized pixel shader version %u.%u\n",
                     This->baseShader.reg_maps.shader_version.major,
                     This->baseShader.reg_maps.shader_version.minor);
     }
 }

 static HRESULT WINAPI IWineD3DPixelShaderImpl_SetFunction(IWineD3DPixelShader *iface,
         const DWORD *pFunction, const struct wined3d_shader_signature *output_signature)
 {
     IWineD3DPixelShaderImpl *This =(IWineD3DPixelShaderImpl *)iface;
     unsigned int i, highest_reg_used = 0, num_regs_used = 0;
     shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
     const struct wined3d_shader_frontend *fe;
     HRESULT hr;

     TRACE("(%p) : pFunction %p\n", iface, pFunction);

     fe = shader_select_frontend(*pFunction);
     if (!fe)
     {
         FIXME("Unable to find frontend for shader.\n");
         return WINED3DERR_INVALIDCALL;
     }
     This->baseShader.frontend = fe;
     This->baseShader.frontend_data = fe->shader_init(pFunction, output_signature);
     if (!This->baseShader.frontend_data)
     {
         FIXME("Failed to initialize frontend.\n");
         return WINED3DERR_INVALIDCALL;
     }

     /* First pass: trace shader */
     if (TRACE_ON(d3d_shader)) shader_trace_init(fe, This->baseShader.frontend_data, pFunction);

     /* Initialize immediate constant lists */
     list_init(&This->baseShader.constantsF);
     list_init(&This->baseShader.constantsB);
     list_init(&This->baseShader.constantsI);

     /* Second pass: figure out which registers are used, what the semantics are, etc.. */
     hr = shader_get_registers_used((IWineD3DBaseShader *)This, fe,
             reg_maps, NULL, This->input_signature, NULL,
             pFunction, GL_LIMITS(pshader_constantsF));
     if (FAILED(hr)) return hr;

     pshader_set_limits(This);

     for (i = 0; i < MAX_REG_INPUT; ++i)
     {
         if (This->input_reg_used[i])
         {
             ++num_regs_used;
             highest_reg_used = i;
         }
     }

     /* Don't do any register mapping magic if it is not needed, or if we can't
      * achieve anything anyway */
     if (highest_reg_used < (GL_LIMITS(glsl_varyings) / 4)
             || num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
     {
         if (num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
         {
             /* This happens with relative addressing. The input mapper function
              * warns about this if the higher registers are declared too, so
              * don't write a FIXME here */
             WARN("More varying registers used than supported\n");
         }

         for (i = 0; i < MAX_REG_INPUT; ++i)
         {
             This->input_reg_map[i] = i;
         }

         This->declared_in_count = highest_reg_used + 1;
     }
     else
     {
         This->declared_in_count = 0;
         for (i = 0; i < MAX_REG_INPUT; ++i)
         {
             if (This->input_reg_used[i]) This->input_reg_map[i] = This->declared_in_count++;
             else This->input_reg_map[i] = ~0U;
         }
     }

     This->baseShader.load_local_constsF = FALSE;

     TRACE("(%p) : Copying the function\n", This);

     This->baseShader.function = HeapAlloc(GetProcessHeap(), 0, This->baseShader.functionLength);
     if (!This->baseShader.function) return E_OUTOFMEMORY;
     memcpy(This->baseShader.function, pFunction, This->baseShader.functionLength);

     return WINED3D_OK;
 }

 void pixelshader_update_samplers(struct shader_reg_maps *reg_maps, IWineD3DBaseTexture * const *textures)
 {
     WINED3DSAMPLER_TEXTURE_TYPE *sampler_type = reg_maps->sampler_type;
     unsigned int i;

     if (reg_maps->shader_version.major != 1) return;

     for (i = 0; i < max(MAX_FRAGMENT_SAMPLERS, MAX_VERTEX_SAMPLERS); ++i)
     {
         /* We don't sample from this sampler */
         if (!sampler_type[i]) continue;

         if (!textures[i])
         {
             ERR("No texture bound to sampler %u, using 2D\n", i);
             sampler_type[i] = WINED3DSTT_2D;
             continue;
         }

         switch (IWineD3DBaseTexture_GetTextureDimensions(textures[i]))
         {
             case GL_TEXTURE_RECTANGLE_ARB:
             case GL_TEXTURE_2D:
                 /* We have to select between texture rectangles and 2D textures later because 2.0 and
                  * 3.0 shaders only have WINED3DSTT_2D as well */
                 sampler_type[i] = WINED3DSTT_2D;
                 break;

             case GL_TEXTURE_3D:
                 sampler_type[i] = WINED3DSTT_VOLUME;
                 break;

             case GL_TEXTURE_CUBE_MAP_ARB:
                 sampler_type[i] = WINED3DSTT_CUBE;
                 break;

             default:
                 FIXME("Unrecognized texture type %#x, using 2D\n",
                         IWineD3DBaseTexture_GetTextureDimensions(textures[i]));
                 sampler_type[i] = WINED3DSTT_2D;
         }
     }
 }

 const IWineD3DPixelShaderVtbl IWineD3DPixelShader_Vtbl =
 {
     /*** IUnknown methods ***/
     IWineD3DPixelShaderImpl_QueryInterface,
     IWineD3DPixelShaderImpl_AddRef,
     IWineD3DPixelShaderImpl_Release,
     /*** IWineD3DBase methods ***/
     IWineD3DPixelShaderImpl_GetParent,
     /*** IWineD3DBaseShader methods ***/
     IWineD3DPixelShaderImpl_SetFunction,
     /*** IWineD3DPixelShader methods ***/
     IWineD3DPixelShaderImpl_GetDevice,
     IWineD3DPixelShaderImpl_GetFunction
 };

 void find_ps_compile_args(IWineD3DPixelShaderImpl *shader, IWineD3DStateBlockImpl *stateblock, struct ps_compile_args *args) {
     UINT i;
     IWineD3DBaseTextureImpl *tex;

     memset(args, 0, sizeof(*args)); /* FIXME: Make sure all bits are set */
     args->srgb_correction = stateblock->renderState[WINED3DRS_SRGBWRITEENABLE] ? 1 : 0;
     args->np2_fixup = 0;

     for(i = 0; i < MAX_FRAGMENT_SAMPLERS; i++) {
         if (!shader->baseShader.reg_maps.sampler_type[i]) continue;
         tex = (IWineD3DBaseTextureImpl *) stateblock->textures[i];
         if(!tex) {
             args->color_fixup[i] = COLOR_FIXUP_IDENTITY;
             continue;
         }
         args->color_fixup[i] = tex->resource.format_desc->color_fixup;

         /* Flag samplers that need NP2 texcoord fixup. */
         if(!tex->baseTexture.pow2Matrix_identity) {
             args->np2_fixup |= (1 << i);
         }
     }
     if (shader->baseShader.reg_maps.shader_version.major >= 3)
     {
         if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed)
         {
             args->vp_mode = pretransformed;
         }
         else if (use_vs(stateblock))
         {
             args->vp_mode = vertexshader;
         } else {
             args->vp_mode = fixedfunction;
         }
         args->fog = FOG_OFF;
     } else {
         args->vp_mode = vertexshader;
         if(stateblock->renderState[WINED3DRS_FOGENABLE]) {
             switch(stateblock->renderState[WINED3DRS_FOGTABLEMODE]) {
                 case WINED3DFOG_NONE:
                     if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed
                             || use_vs(stateblock))
                     {
                         args->fog = FOG_LINEAR;
                         break;
                     }
                     switch(stateblock->renderState[WINED3DRS_FOGVERTEXMODE]) {
                         case WINED3DFOG_NONE: /* Drop through */
                         case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
                         case WINED3DFOG_EXP:    args->fog = FOG_EXP;    break;
                         case WINED3DFOG_EXP2:   args->fog = FOG_EXP2;   break;
                     }
                     break;

                 case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
                 case WINED3DFOG_EXP:    args->fog = FOG_EXP;    break;
                 case WINED3DFOG_EXP2:   args->fog = FOG_EXP2;   break;
             }
         } else {
             args->fog = FOG_OFF;
         }
     }
 }
	/*
	* shaders implementation
	*
	* Copyright 2002-2003 Jason Edmeades
	* Copyright 2002-2003 Raphael Junqueira
	* Copyright 2004 Christian Costa
	* Copyright 2005 Oliver Stieber
	* Copyright 2006 Ivan Gyurdiev
	* Copyright 2007-2008 Stefan Dösinger for CodeWeavers
	*
	* 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
	*/

	#include "config.h"

	#include <math.h>
	#include <stdio.h>

	#include "wined3d_private.h"

	WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);

	#define GLINFO_LOCATION ((IWineD3DDeviceImpl *) This->baseShader.device)->adapter->gl_info

	static HRESULT WINAPI IWineD3DPixelShaderImpl_QueryInterface(IWineD3DPixelShader iface, REFIID riid, LPVOID ppobj) {
	TRACE("iface %p, riid %s, ppobj %p\n", iface, debugstr_guid(riid), ppobj);

	if (IsEqualGUID(riid, &IID_IWineD3DPixelShader)
	\|\| IsEqualGUID(riid, &IID_IWineD3DBaseShader)
	\|\| IsEqualGUID(riid, &IID_IWineD3DBase)
	\|\| IsEqualGUID(riid, &IID_IUnknown))
	{
	IUnknown_AddRef(iface);
	*ppobj = iface;
	return S_OK;
	}

	WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));

	*ppobj = NULL;
	return E_NOINTERFACE;
	}

	static ULONG WINAPI IWineD3DPixelShaderImpl_AddRef(IWineD3DPixelShader *iface) {
	IWineD3DPixelShaderImpl This = (IWineD3DPixelShaderImpl )iface;
	ULONG refcount = InterlockedIncrement(&This->baseShader.ref);

	TRACE("%p increasing refcount to %u\n", This, refcount);

	return refcount;
	}

	static ULONG WINAPI IWineD3DPixelShaderImpl_Release(IWineD3DPixelShader *iface) {
	IWineD3DPixelShaderImpl This = (IWineD3DPixelShaderImpl )iface;
	ULONG refcount = InterlockedDecrement(&This->baseShader.ref);

	TRACE("%p decreasing refcount to %u\n", This, refcount);

	if (!refcount)
	{
	shader_cleanup((IWineD3DBaseShader *)iface);
	HeapFree(GetProcessHeap(), 0, This);
	}

	return refcount;
	}

	/* *******************************************
	IWineD3DPixelShader IWineD3DPixelShader parts follow
	******************************************* */

	static HRESULT WINAPI IWineD3DPixelShaderImpl_GetParent(IWineD3DPixelShader iface, IUnknown* parent){
	IWineD3DPixelShaderImpl This = (IWineD3DPixelShaderImpl )iface;

	*parent = This->parent;
	IUnknown_AddRef(*parent);
	TRACE("(%p) : returning %p\n", This, *parent);
	return WINED3D_OK;
	}

	static HRESULT WINAPI IWineD3DPixelShaderImpl_GetDevice(IWineD3DPixelShader* iface, IWineD3DDevice **pDevice){
	IWineD3DPixelShaderImpl This = (IWineD3DPixelShaderImpl )iface;
	IWineD3DDevice_AddRef(This->baseShader.device);
	*pDevice = This->baseShader.device;
	TRACE("(%p) returning %p\n", This, *pDevice);
	return WINED3D_OK;
	}


	static HRESULT WINAPI IWineD3DPixelShaderImpl_GetFunction(IWineD3DPixelShader* impl, VOID* pData, UINT* pSizeOfData) {
	IWineD3DPixelShaderImpl This = (IWineD3DPixelShaderImpl )impl;
	TRACE("(%p) : pData(%p), pSizeOfData(%p)\n", This, pData, pSizeOfData);

	if (NULL == pData) {
	*pSizeOfData = This->baseShader.functionLength;
	return WINED3D_OK;
	}
	if (*pSizeOfData < This->baseShader.functionLength) {
	/* MSDN claims (for d3d8 at least) that if *pSizeOfData is smaller
	* than the required size we should write the required size and
	* return D3DERR_MOREDATA. That's not actually true. */
	return WINED3DERR_INVALIDCALL;
	}

	TRACE("(%p) : GetFunction copying to %p\n", This, pData);
	memcpy(pData, This->baseShader.function, This->baseShader.functionLength);

	return WINED3D_OK;
	}

	static void pshader_set_limits(IWineD3DPixelShaderImpl *This)
	{
	DWORD shader_version = WINED3D_SHADER_VERSION(This->baseShader.reg_maps.shader_version.major,
	This->baseShader.reg_maps.shader_version.minor);

	This->baseShader.limits.attributes = 0;
	This->baseShader.limits.address = 0;
	This->baseShader.limits.packed_output = 0;

	switch (shader_version)
	{
	case WINED3D_SHADER_VERSION(1,0):
	case WINED3D_SHADER_VERSION(1,1):
	case WINED3D_SHADER_VERSION(1,2):
	case WINED3D_SHADER_VERSION(1,3):
	This->baseShader.limits.temporary = 2;
	This->baseShader.limits.constant_float = 8;
	This->baseShader.limits.constant_int = 0;
	This->baseShader.limits.constant_bool = 0;
	This->baseShader.limits.texcoord = 4;
	This->baseShader.limits.sampler = 4;
	This->baseShader.limits.packed_input = 0;
	This->baseShader.limits.label = 0;
	break;

	case WINED3D_SHADER_VERSION(1,4):
	This->baseShader.limits.temporary = 6;
	This->baseShader.limits.constant_float = 8;
	This->baseShader.limits.constant_int = 0;
	This->baseShader.limits.constant_bool = 0;
	This->baseShader.limits.texcoord = 6;
	This->baseShader.limits.sampler = 6;
	This->baseShader.limits.packed_input = 0;
	This->baseShader.limits.label = 0;
	break;

	/* FIXME: temporaries must match D3DPSHADERCAPS2_0.NumTemps */
	case WINED3D_SHADER_VERSION(2,0):
	This->baseShader.limits.temporary = 32;
	This->baseShader.limits.constant_float = 32;
	This->baseShader.limits.constant_int = 16;
	This->baseShader.limits.constant_bool = 16;
	This->baseShader.limits.texcoord = 8;
	This->baseShader.limits.sampler = 16;
	This->baseShader.limits.packed_input = 0;
	break;

	case WINED3D_SHADER_VERSION(2,1):
	This->baseShader.limits.temporary = 32;
	This->baseShader.limits.constant_float = 32;
	This->baseShader.limits.constant_int = 16;
	This->baseShader.limits.constant_bool = 16;
	This->baseShader.limits.texcoord = 8;
	This->baseShader.limits.sampler = 16;
	This->baseShader.limits.packed_input = 0;
	This->baseShader.limits.label = 16;
	break;

	case WINED3D_SHADER_VERSION(4,0):
	FIXME("Using 3.0 limits for 4.0 shader\n");
	/* Fall through */

	case WINED3D_SHADER_VERSION(3,0):
	This->baseShader.limits.temporary = 32;
	This->baseShader.limits.constant_float = 224;
	This->baseShader.limits.constant_int = 16;
	This->baseShader.limits.constant_bool = 16;
	This->baseShader.limits.texcoord = 0;
	This->baseShader.limits.sampler = 16;
	This->baseShader.limits.packed_input = 12;
	This->baseShader.limits.label = 16; /* FIXME: 2048 */
	break;

	default:
	This->baseShader.limits.temporary = 32;
	This->baseShader.limits.constant_float = 32;
	This->baseShader.limits.constant_int = 16;
	This->baseShader.limits.constant_bool = 16;
	This->baseShader.limits.texcoord = 8;
	This->baseShader.limits.sampler = 16;
	This->baseShader.limits.packed_input = 0;
	This->baseShader.limits.label = 0;
	FIXME("Unrecognized pixel shader version %u.%u\n",
	This->baseShader.reg_maps.shader_version.major,
	This->baseShader.reg_maps.shader_version.minor);
	}
	}

	static HRESULT WINAPI IWineD3DPixelShaderImpl_SetFunction(IWineD3DPixelShader *iface,
	const DWORD pFunction, const struct wined3d_shader_signature output_signature)
	{
	IWineD3DPixelShaderImpl This =(IWineD3DPixelShaderImpl )iface;
	unsigned int i, highest_reg_used = 0, num_regs_used = 0;
	shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
	const struct wined3d_shader_frontend *fe;
	HRESULT hr;

	TRACE("(%p) : pFunction %p\n", iface, pFunction);

	fe = shader_select_frontend(*pFunction);
	if (!fe)
	{
	FIXME("Unable to find frontend for shader.\n");
	return WINED3DERR_INVALIDCALL;
	}
	This->baseShader.frontend = fe;
	This->baseShader.frontend_data = fe->shader_init(pFunction, output_signature);
	if (!This->baseShader.frontend_data)
	{
	FIXME("Failed to initialize frontend.\n");
	return WINED3DERR_INVALIDCALL;
	}

	/* First pass: trace shader */
	if (TRACE_ON(d3d_shader)) shader_trace_init(fe, This->baseShader.frontend_data, pFunction);

	/* Initialize immediate constant lists */
	list_init(&This->baseShader.constantsF);
	list_init(&This->baseShader.constantsB);
	list_init(&This->baseShader.constantsI);

	/* Second pass: figure out which registers are used, what the semantics are, etc.. */
	hr = shader_get_registers_used((IWineD3DBaseShader *)This, fe,
	reg_maps, NULL, This->input_signature, NULL,
	pFunction, GL_LIMITS(pshader_constantsF));
	if (FAILED(hr)) return hr;

	pshader_set_limits(This);

	for (i = 0; i < MAX_REG_INPUT; ++i)
	{
	if (This->input_reg_used[i])
	{
	++num_regs_used;
	highest_reg_used = i;
	}
	}

	/* Don't do any register mapping magic if it is not needed, or if we can't
	* achieve anything anyway */
	if (highest_reg_used < (GL_LIMITS(glsl_varyings) / 4)
	\|\| num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
	{
	if (num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
	{
	/* This happens with relative addressing. The input mapper function
	* warns about this if the higher registers are declared too, so
	* don't write a FIXME here */
	WARN("More varying registers used than supported\n");
	}

	for (i = 0; i < MAX_REG_INPUT; ++i)
	{
	This->input_reg_map[i] = i;
	}

	This->declared_in_count = highest_reg_used + 1;
	}
	else
	{
	This->declared_in_count = 0;
	for (i = 0; i < MAX_REG_INPUT; ++i)
	{
	if (This->input_reg_used[i]) This->input_reg_map[i] = This->declared_in_count++;
	else This->input_reg_map[i] = ~0U;
	}
	}

	This->baseShader.load_local_constsF = FALSE;

	TRACE("(%p) : Copying the function\n", This);

	This->baseShader.function = HeapAlloc(GetProcessHeap(), 0, This->baseShader.functionLength);
	if (!This->baseShader.function) return E_OUTOFMEMORY;
	memcpy(This->baseShader.function, pFunction, This->baseShader.functionLength);

	return WINED3D_OK;
	}

	void pixelshader_update_samplers(struct shader_reg_maps reg_maps, IWineD3DBaseTexture const *textures)
	{
	WINED3DSAMPLER_TEXTURE_TYPE *sampler_type = reg_maps->sampler_type;
	unsigned int i;

	if (reg_maps->shader_version.major != 1) return;

	for (i = 0; i < max(MAX_FRAGMENT_SAMPLERS, MAX_VERTEX_SAMPLERS); ++i)
	{
	/* We don't sample from this sampler */
	if (!sampler_type[i]) continue;

	if (!textures[i])
	{
	ERR("No texture bound to sampler %u, using 2D\n", i);
	sampler_type[i] = WINED3DSTT_2D;
	continue;
	}

	switch (IWineD3DBaseTexture_GetTextureDimensions(textures[i]))
	{
	case GL_TEXTURE_RECTANGLE_ARB:
	case GL_TEXTURE_2D:
	/* We have to select between texture rectangles and 2D textures later because 2.0 and
	* 3.0 shaders only have WINED3DSTT_2D as well */
	sampler_type[i] = WINED3DSTT_2D;
	break;

	case GL_TEXTURE_3D:
	sampler_type[i] = WINED3DSTT_VOLUME;
	break;

	case GL_TEXTURE_CUBE_MAP_ARB:
	sampler_type[i] = WINED3DSTT_CUBE;
	break;

	default:
	FIXME("Unrecognized texture type %#x, using 2D\n",
	IWineD3DBaseTexture_GetTextureDimensions(textures[i]));
	sampler_type[i] = WINED3DSTT_2D;
	}
	}
	}

	const IWineD3DPixelShaderVtbl IWineD3DPixelShader_Vtbl =
	{
	/* IUnknown methods */
	IWineD3DPixelShaderImpl_QueryInterface,
	IWineD3DPixelShaderImpl_AddRef,
	IWineD3DPixelShaderImpl_Release,
	/* IWineD3DBase methods */
	IWineD3DPixelShaderImpl_GetParent,
	/* IWineD3DBaseShader methods */
	IWineD3DPixelShaderImpl_SetFunction,
	/* IWineD3DPixelShader methods */
	IWineD3DPixelShaderImpl_GetDevice,
	IWineD3DPixelShaderImpl_GetFunction
	};

	void find_ps_compile_args(IWineD3DPixelShaderImpl shader, IWineD3DStateBlockImpl stateblock, struct ps_compile_args *args) {
	UINT i;
	IWineD3DBaseTextureImpl *tex;

	memset(args, 0, sizeof(args)); / FIXME: Make sure all bits are set */
	args->srgb_correction = stateblock->renderState[WINED3DRS_SRGBWRITEENABLE] ? 1 : 0;
	args->np2_fixup = 0;

	for(i = 0; i < MAX_FRAGMENT_SAMPLERS; i++) {
	if (!shader->baseShader.reg_maps.sampler_type[i]) continue;
	tex = (IWineD3DBaseTextureImpl *) stateblock->textures[i];
	if(!tex) {
	args->color_fixup[i] = COLOR_FIXUP_IDENTITY;
	continue;
	}
	args->color_fixup[i] = tex->resource.format_desc->color_fixup;

	/* Flag samplers that need NP2 texcoord fixup. */
	if(!tex->baseTexture.pow2Matrix_identity) {
	args->np2_fixup \|= (1 << i);
	}
	}
	if (shader->baseShader.reg_maps.shader_version.major >= 3)
	{
	if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed)
	{
	args->vp_mode = pretransformed;
	}
	else if (use_vs(stateblock))
	{
	args->vp_mode = vertexshader;
	} else {
	args->vp_mode = fixedfunction;
	}
	args->fog = FOG_OFF;
	} else {
	args->vp_mode = vertexshader;
	if(stateblock->renderState[WINED3DRS_FOGENABLE]) {
	switch(stateblock->renderState[WINED3DRS_FOGTABLEMODE]) {
	case WINED3DFOG_NONE:
	if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed
	\|\| use_vs(stateblock))
	{
	args->fog = FOG_LINEAR;
	break;
	}
	switch(stateblock->renderState[WINED3DRS_FOGVERTEXMODE]) {
	case WINED3DFOG_NONE: /* Drop through */
	case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
	case WINED3DFOG_EXP: args->fog = FOG_EXP; break;
	case WINED3DFOG_EXP2: args->fog = FOG_EXP2; break;
	}
	break;

	case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
	case WINED3DFOG_EXP: args->fog = FOG_EXP; break;
	case WINED3DFOG_EXP2: args->fog = FOG_EXP2; break;
	}
	} else {
	args->fog = FOG_OFF;
	}
	}
	}