Sweden-Number/dlls/d3d9/tests/visual.c

/*
 * Copyright (C) 2005 Henri Verbeet
 * Copyright (C) 2007 Stefan D<EFBFBD>singer(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
 */

/* This test framework allows limited testing of rendering results. Things are rendered, shown on
 * the framebuffer, read back from there and compared to expected colors.
 *
 * However, neither d3d nor opengl is guaranted to be pixel exact, and thus the capability of this test
 * is rather limited. As a general guideline for adding tests, do not rely on corner pixels. Draw a big enought
 * area which shows specific behavior(like a quad on the whole screen), and try to get resulting colos with
 * all bits set or unset in all channels(like pure red, green, blue, white, black). Hopefully everything that
 * causes visible results in games can be tested in a way that does not depend on pixel exactness
 */

#define COBJMACROS
#include <d3d9.h>
#include <dxerr9.h>
#include "wine/test.h"

static HMODULE d3d9_handle = 0;

static HWND create_window(void)
{
    WNDCLASS wc = {0};
    HWND ret;
    wc.lpfnWndProc = &DefWindowProc;
    wc.lpszClassName = "d3d9_test_wc";
    RegisterClass(&wc);

    ret = CreateWindow("d3d9_test_wc", "d3d9_test",
                        WS_MAXIMIZE | WS_VISIBLE | WS_CAPTION , 0, 0, 640, 480, 0, 0, 0, 0);
    return ret;
}

static DWORD getPixelColor(IDirect3DDevice9 *device, UINT x, UINT y)
{
    DWORD ret;
    IDirect3DSurface9 *surf;
    HRESULT hr;
    D3DLOCKED_RECT lockedRect;
    RECT rectToLock = {x, y, x+1, y+1};

    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, 640, 480, D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &surf, NULL);
    if(FAILED(hr) || !surf )  /* This is not a test */
    {
        trace("Can't create an offscreen plain surface to read the render target data, hr=%s\n", DXGetErrorString9(hr));
        return 0xdeadbeef;
    }

    hr = IDirect3DDevice9_GetFrontBufferData(device, 0, surf);
    if(FAILED(hr))
    {
        trace("Can't read the front buffer data, hr=%s\n", DXGetErrorString9(hr));
        ret = 0xdeadbeed;
        goto out;
    }

    hr = IDirect3DSurface9_LockRect(surf, &lockedRect, &rectToLock, D3DLOCK_READONLY);
    if(FAILED(hr))
    {
        trace("Can't lock the offscreen surface, hr=%s\n", DXGetErrorString9(hr));
        ret = 0xdeadbeec;
        goto out;
    }

    /* Remove the X channel for now. DirectX and OpenGL have different ideas how to treat it apparently, and it isn't
     * really important for these tests
     */
    ret = ((DWORD *) lockedRect.pBits)[0] & 0x00ffffff;
    hr = IDirect3DSurface9_UnlockRect(surf);
    if(FAILED(hr))
    {
        trace("Can't unlock the offscreen surface, hr=%s\n", DXGetErrorString9(hr));
    }

out:
    if(surf) IDirect3DSurface9_Release(surf);
    return ret;
}

static IDirect3DDevice9 *init_d3d9(void)
{
    IDirect3D9 * (__stdcall * d3d9_create)(UINT SDKVersion) = 0;
    IDirect3D9 *d3d9_ptr = 0;
    IDirect3DDevice9 *device_ptr = 0;
    D3DPRESENT_PARAMETERS present_parameters;
    HRESULT hr;

    d3d9_create = (void *)GetProcAddress(d3d9_handle, "Direct3DCreate9");
    ok(d3d9_create != NULL, "Failed to get address of Direct3DCreate9\n");
    if (!d3d9_create) return NULL;

    d3d9_ptr = d3d9_create(D3D_SDK_VERSION);
    ok(d3d9_ptr != NULL, "Failed to create IDirect3D9 object\n");
    if (!d3d9_ptr) return NULL;

    ZeroMemory(&present_parameters, sizeof(present_parameters));
    present_parameters.Windowed = FALSE;
    present_parameters.hDeviceWindow = create_window();
    present_parameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
    present_parameters.BackBufferWidth = 640;
    present_parameters.BackBufferHeight = 480;
    present_parameters.BackBufferFormat = D3DFMT_X8R8G8B8;

    hr = IDirect3D9_CreateDevice(d3d9_ptr, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, present_parameters.hDeviceWindow, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &present_parameters, &device_ptr);
    ok(hr == D3D_OK, "IDirect3D_CreateDevice returned: %s\n", DXGetErrorString9(hr));

    return device_ptr;
}

START_TEST(visual)
{
    IDirect3DDevice9 *device_ptr;
    HRESULT hr;
    DWORD color;

    d3d9_handle = LoadLibraryA("d3d9.dll");
    if (!d3d9_handle)
    {
        trace("Could not load d3d9.dll, skipping tests\n");
        return;
    }

    device_ptr = init_d3d9();
    if (!device_ptr) return;

    /* Check for the reliability of the returned data */
    hr = IDirect3DDevice9_Clear(device_ptr, 0, NULL, D3DCLEAR_TARGET, 0xffff0000, 0.0, 0);
    if(FAILED(hr))
    {
        trace("Clear failed, can't assure correctness of the test results, skipping\n");
        goto cleanup;
    }
    IDirect3DDevice9_Present(device_ptr, NULL, NULL, NULL, NULL);

    color = getPixelColor(device_ptr, 1, 1);
    if(color !=0x00ff0000)
    {
        trace("Sanity check returned an incorrect color(%08x), can't assure the correctness of the tests, skipping\n", color);
        goto cleanup;
    }

    hr = IDirect3DDevice9_Clear(device_ptr, 0, NULL, D3DCLEAR_TARGET, 0xff00ddee, 0.0, 0);
    if(FAILED(hr))
    {
        trace("Clear failed, can't assure correctness of the test results, skipping\n");
        goto cleanup;
    }
    IDirect3DDevice9_Present(device_ptr, NULL, NULL, NULL, NULL);

    color = getPixelColor(device_ptr, 639, 479);
    if(color != 0x0000ddee)
    {
        trace("Sanity check returned an incorrect color(%08x), can't assure the correctness of the tests, skipping\n", color);
        goto cleanup;
    }

cleanup:
    if(device_ptr) IDirect3DDevice9_Release(device_ptr);
}