/*
 * Copyright 2008 Henri Verbeet 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
 */

#define COBJMACROS
#include "initguid.h"
#include "d3d10.h"
#include "wine/test.h"

HRESULT WINAPI D3D10CoreCreateDevice(IDXGIFactory *factory, IDXGIAdapter *adapter,
        UINT flags, void *unknown0, ID3D10Device **device);

static ID3D10Device *create_device(void)
{
    IDXGIFactory *factory = NULL;
    IDXGIAdapter *adapter = NULL;
    ID3D10Device *device = NULL;
    HRESULT hr;

    hr = CreateDXGIFactory(&IID_IDXGIFactory, (void *)&factory);
    if (FAILED(hr)) goto cleanup;

    hr = IDXGIFactory_EnumAdapters(factory, 0, &adapter);
    ok(SUCCEEDED(hr) ||
       hr == DXGI_ERROR_NOT_FOUND, /* Some VMware and VirtualBox */
       "EnumAdapters failed, hr %#x\n", hr);
    if (FAILED(hr)) goto cleanup;

    hr = D3D10CoreCreateDevice(factory, adapter, 0, NULL, &device);
    if (FAILED(hr))
    {
        HMODULE d3d10ref;

        trace("Failed to create a HW device, trying REF\n");
        IDXGIAdapter_Release(adapter);
        adapter = NULL;

        d3d10ref = LoadLibraryA("d3d10ref.dll");
        if (!d3d10ref)
        {
            trace("d3d10ref.dll not available, unable to create a REF device\n");
            goto cleanup;
        }

        hr = IDXGIFactory_CreateSoftwareAdapter(factory, d3d10ref, &adapter);
        FreeLibrary(d3d10ref);
        ok(SUCCEEDED(hr), "CreateSoftwareAdapter failed, hr %#x\n", hr);
        if (FAILED(hr)) goto cleanup;

        hr = D3D10CoreCreateDevice(factory, adapter, 0, NULL, &device);
        ok(SUCCEEDED(hr), "Failed to create a REF device, hr %#x\n", hr);
        if (FAILED(hr)) goto cleanup;
    }

cleanup:
    if (adapter) IDXGIAdapter_Release(adapter);
    if (factory) IDXGIFactory_Release(factory);

    return device;
}

static void test_device_interfaces(ID3D10Device *device)
{
    IUnknown *obj;
    HRESULT hr;

    if (SUCCEEDED(hr = ID3D10Device_QueryInterface(device, &IID_IUnknown, (void **)&obj)))
        IUnknown_Release(obj);
    ok(SUCCEEDED(hr), "ID3D10Device does not implement IUnknown\n");

    if (SUCCEEDED(hr = ID3D10Device_QueryInterface(device, &IID_IDXGIObject, (void **)&obj)))
        IUnknown_Release(obj);
    ok(SUCCEEDED(hr), "ID3D10Device does not implement IDXGIObject\n");

    if (SUCCEEDED(hr = ID3D10Device_QueryInterface(device, &IID_IDXGIDevice, (void **)&obj)))
        IUnknown_Release(obj);
    ok(SUCCEEDED(hr), "ID3D10Device does not implement IDXGIDevice\n");

    if (SUCCEEDED(hr = ID3D10Device_QueryInterface(device, &IID_ID3D10Device, (void **)&obj)))
        IUnknown_Release(obj);
    ok(SUCCEEDED(hr), "ID3D10Device does not implement ID3D10Device\n");
}

static void test_create_texture(ID3D10Device *device)
{
    D3D10_TEXTURE2D_DESC desc;
    ID3D10Texture2D *texture;
    IDXGISurface *surface;
    HRESULT hr;

    desc.Width = 512;
    desc.Height = 512;
    desc.MipLevels = 1;
    desc.ArraySize = 1;
    desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    desc.SampleDesc.Count = 1;
    desc.SampleDesc.Quality = 0;
    desc.Usage = D3D10_USAGE_DEFAULT;
    desc.BindFlags = D3D10_BIND_RENDER_TARGET;
    desc.CPUAccessFlags = 0;
    desc.MiscFlags = 0;

    hr = ID3D10Device_CreateTexture2D(device, &desc, NULL, &texture);
    ok(SUCCEEDED(hr), "Failed to create a 2d texture, hr %#x\n", hr);

    hr = ID3D10Texture2D_QueryInterface(texture, &IID_IDXGISurface, (void **)&surface);
    ok(SUCCEEDED(hr), "Texture should implement IDXGISurface\n");
    if (SUCCEEDED(hr)) IDXGISurface_Release(surface);
    ID3D10Texture2D_Release(texture);

    desc.MipLevels = 0;
    hr = ID3D10Device_CreateTexture2D(device, &desc, NULL, &texture);
    ok(SUCCEEDED(hr), "Failed to create a 2d texture, hr %#x\n", hr);

    hr = ID3D10Texture2D_QueryInterface(texture, &IID_IDXGISurface, (void **)&surface);
    ok(FAILED(hr), "Texture should not implement IDXGISurface\n");
    if (SUCCEEDED(hr)) IDXGISurface_Release(surface);
    ID3D10Texture2D_Release(texture);

    desc.MipLevels = 1;
    desc.ArraySize = 2;
    hr = ID3D10Device_CreateTexture2D(device, &desc, NULL, &texture);
    ok(SUCCEEDED(hr), "Failed to create a 2d texture, hr %#x\n", hr);

    hr = ID3D10Texture2D_QueryInterface(texture, &IID_IDXGISurface, (void **)&surface);
    ok(FAILED(hr), "Texture should not implement IDXGISurface\n");
    if (SUCCEEDED(hr)) IDXGISurface_Release(surface);
    ID3D10Texture2D_Release(texture);
}

static void test_create_rendertarget_view(ID3D10Device *device)
{
    D3D10_RENDER_TARGET_VIEW_DESC rtv_desc;
    D3D10_TEXTURE2D_DESC texture_desc;
    D3D10_BUFFER_DESC buffer_desc;
    ID3D10RenderTargetView *rtview;
    ID3D10Texture2D *texture;
    ID3D10Buffer *buffer;
    HRESULT hr;

    buffer_desc.ByteWidth = 1024;
    buffer_desc.Usage = D3D10_USAGE_DEFAULT;
    buffer_desc.BindFlags = D3D10_BIND_RENDER_TARGET;
    buffer_desc.CPUAccessFlags = 0;
    buffer_desc.MiscFlags = 0;

    hr = ID3D10Device_CreateBuffer(device, &buffer_desc, NULL, &buffer);
    ok(SUCCEEDED(hr), "Failed to create a buffer, hr %#x\n", hr);

    rtv_desc.Format = DXGI_FORMAT_R32G32B32A32_FLOAT;
    rtv_desc.ViewDimension = D3D10_RTV_DIMENSION_BUFFER;
    U(rtv_desc).Buffer.ElementOffset = 0;
    U(rtv_desc).Buffer.ElementWidth = 64;

    hr = ID3D10Device_CreateRenderTargetView(device, (ID3D10Resource *)buffer, &rtv_desc, &rtview);
    ok(SUCCEEDED(hr), "Failed to create a rendertarget view, hr %#x\n", hr);

    ID3D10RenderTargetView_Release(rtview);
    ID3D10Buffer_Release(buffer);

    texture_desc.Width = 512;
    texture_desc.Height = 512;
    texture_desc.MipLevels = 1;
    texture_desc.ArraySize = 1;
    texture_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    texture_desc.SampleDesc.Count = 1;
    texture_desc.SampleDesc.Quality = 0;
    texture_desc.Usage = D3D10_USAGE_DEFAULT;
    texture_desc.BindFlags = D3D10_BIND_RENDER_TARGET;
    texture_desc.CPUAccessFlags = 0;
    texture_desc.MiscFlags = 0;

    hr = ID3D10Device_CreateTexture2D(device, &texture_desc, NULL, &texture);
    ok(SUCCEEDED(hr), "Failed to create a 2d texture, hr %#x\n", hr);

    /* For texture resources it's allowed to specify NULL as desc */
    hr = ID3D10Device_CreateRenderTargetView(device, (ID3D10Resource *)texture, NULL, &rtview);
    ok(SUCCEEDED(hr), "Failed to create a rendertarget view, hr %#x\n", hr);

    ID3D10RenderTargetView_GetDesc(rtview, &rtv_desc);
    ok(rtv_desc.Format == texture_desc.Format, "Expected format %#x, got %#x\n", texture_desc.Format, rtv_desc.Format);
    ok(rtv_desc.ViewDimension == D3D10_RTV_DIMENSION_TEXTURE2D,
            "Expected view dimension D3D10_RTV_DIMENSION_TEXTURE2D, got %#x\n", rtv_desc.ViewDimension);
    ok(U(rtv_desc).Texture2D.MipSlice == 0, "Expected mip slice 0, got %#x\n", U(rtv_desc).Texture2D.MipSlice);

    ID3D10RenderTargetView_Release(rtview);
    ID3D10Texture2D_Release(texture);
}

START_TEST(device)
{
    ID3D10Device *device;
    ULONG refcount;

    device = create_device();
    if (!device)
    {
        skip("Failed to create device, skipping tests\n");
        return;
    }

    test_device_interfaces(device);
    test_create_texture(device);
    test_create_rendertarget_view(device);

    refcount = ID3D10Device_Release(device);
    ok(!refcount, "Device has %u references left\n", refcount);
}