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wined3d: alphaop fixes for color keying.

This commit is contained in:
Stefan Dösinger 2007-02-15 03:04:18 +01:00 committed by Alexandre Julliard
parent d4c4e5d167
commit b3f96f4327
2 changed files with 37 additions and 10 deletions
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45
dlls/wined3d/state.c
View File

@ -352,6 +352,11 @@ static void state_alpha(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3D
}
}
if(enable_ckey || context->last_was_ckey) {
StateTable[STATE_TEXTURESTAGE(0, WINED3DTSS_ALPHAOP)].apply(STATE_TEXTURESTAGE(0, WINED3DTSS_ALPHAOP), stateblock, context);
}
context->last_was_ckey = enable_ckey;
if (stateblock->renderState[WINED3DRS_ALPHATESTENABLE] ||
(stateblock->renderState[WINED3DRS_COLORKEYENABLE] && enable_ckey)) {
glEnable(GL_ALPHA_TEST);
@ -376,7 +381,6 @@ static void state_alpha(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3D
glAlphaFunc(glParm, ref);
checkGLcall("glAlphaFunc");
}
/* TODO: Some texture blending operations seem to affect the alpha test */
}
static void state_clipping(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3DContext *context) {
@ -1521,6 +1525,7 @@ static void tex_colorop(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3D
static void tex_alphaop(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3DContext *context) {
DWORD stage = (state - STATE_TEXTURESTAGE(0, 0)) / WINED3D_HIGHEST_TEXTURE_STATE;
DWORD mapped_stage = stateblock->wineD3DDevice->texUnitMap[stage];
DWORD op, arg1, arg2, arg0;
TRACE("Setting alpha op for stage %d\n", stage);
/* Do not care for enabled / disabled stages, just assign the settigns. colorop disables / enables required stuff */
@ -1542,19 +1547,41 @@ static void tex_alphaop(DWORD state, IWineD3DStateBlockImpl *stateblock, WineD3D
}
}
op = stateblock->textureState[stage][WINED3DTSS_ALPHAOP];
arg1 = stateblock->textureState[stage][WINED3DTSS_ALPHAARG1];
arg2 = stateblock->textureState[stage][WINED3DTSS_ALPHAARG2];
arg0 = stateblock->textureState[stage][WINED3DTSS_ALPHAARG0];
if(stateblock->renderState[WINED3DRS_COLORKEYENABLE] && stage == 0 &&
stateblock->textures[0] && stateblock->textureDimensions[0] == GL_TEXTURE_2D) {
IWineD3DSurfaceImpl *surf = (IWineD3DSurfaceImpl *) ((IWineD3DTextureImpl *) stateblock->textures[0])->surfaces[0];
if(surf->CKeyFlags & DDSD_CKSRCBLT &&
getFormatDescEntry(surf->resource.format)->alphaMask == 0x00000000) {
/* Color keying needs to pass alpha values from the texture through to have the alpha test work properly.
* On the other hand applications can still use texture combiners apparently. This code takes care that apps
* cannot remove the texture's alpha channel entirely.
*
* The fixup is required for Prince of Persia 3D(prison bars), while Moto racer 2 requires D3DTOP_MODULATE to work
* on color keyed surfaces.
*
* What to do with multitexturing? So far no app has been found that uses color keying with multitexturing
*/
if(op == WINED3DTOP_DISABLE) op = WINED3DTOP_SELECTARG1;
if(op == WINED3DTOP_SELECTARG1) arg1 = WINED3DTA_TEXTURE;
else if(op == WINED3DTOP_SELECTARG2) arg2 = WINED3DTA_TEXTURE;
}
}
TRACE("Setting alpha op for stage %d\n", stage);
if (GL_SUPPORT(NV_REGISTER_COMBINERS)) {
set_tex_op_nvrc((IWineD3DDevice *)stateblock->wineD3DDevice, TRUE, stage,
stateblock->textureState[stage][WINED3DTSS_ALPHAOP],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG1],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG2],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG0],
op, arg1, arg2, arg0,
mapped_stage);
} else {
set_tex_op((IWineD3DDevice *)stateblock->wineD3DDevice, TRUE, stage, stateblock->textureState[stage][WINED3DTSS_ALPHAOP],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG1],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG2],
stateblock->textureState[stage][WINED3DTSS_ALPHAARG0]);
set_tex_op((IWineD3DDevice *)stateblock->wineD3DDevice, TRUE, stage,
op, arg1, arg2, arg0);
}
}

2
dlls/wined3d/wined3d_private.h
View File

@ -478,7 +478,7 @@ struct WineD3DContext {
BOOL namedArraysLoaded, numberedArraysLoaded;
BOOL lastWasPow2Texture[MAX_TEXTURES];
GLenum tracking_parm; /* Which source is tracking current colour */
BOOL last_was_blit;
BOOL last_was_blit, last_was_ckey;
/* The actual opengl context */
GLXContext glCtx;