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ddraw/tests: Fix alpha_test and offscreen_test on geforce 8800 on XP.

This commit is contained in:
Rico Schüller 2008-12-22 21:29:42 +01:00 committed by Alexandre Julliard
parent a14fe082bf
commit 26b9f8ef26
1 changed files with 18 additions and 0 deletions
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18
dlls/ddraw/tests/visual.c
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@ -185,6 +185,21 @@ out:
return ret;
}
/*
* Helper function to get and set the viewport - needed on geforce 8800 on XP - driver bug?
* This is needed after IDirect3DDevice7_SetRenderTarget in combination with offscreen to backbuffer rendering.
*/
static void set_the_same_viewport_again(IDirect3DDevice7 *device)
{
D3DVIEWPORT7 vp = {0};
HRESULT hr;
hr = IDirect3DDevice7_GetViewport(device,&vp);
ok(hr == D3D_OK && vp.dwWidth == 640 && vp.dwHeight == 480, "IDirect3DDevice7_SetViewport returned %08x\n", hr);
hr = IDirect3DDevice7_SetViewport(device, &vp);
ok(hr == D3D_OK, "IDirect3DDevice7_SetViewport returned %08x\n", hr);
return;
}
struct vertex
{
float x, y, z;
@ -559,6 +574,8 @@ static void offscreen_test(IDirect3DDevice7 *device)
hr = IDirect3DDevice7_SetRenderTarget(device, backbuffer, 0);
ok(hr == D3D_OK, "SetRenderTarget failed, hr = %08x\n", hr);
set_the_same_viewport_again(device);
hr = IDirect3DDevice7_SetTexture(device, 0, offscreen);
ok(hr == D3D_OK, "SetTexture failed, %08x\n", hr);
@ -716,6 +733,7 @@ static void alpha_test(IDirect3DDevice7 *device)
hr = IDirect3DDevice7_SetRenderTarget(device, backbuffer, 0);
ok(hr == D3D_OK, "Can't get back buffer, hr = %08x\n", hr);
set_the_same_viewport_again(device);
/* Render the offscreen texture onto the frame buffer to be able to compare it regularly.
* Disable alpha blending for the final composition