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wined3d: Texture stages that reference NULL textures should just pass

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through the result of the previous stage.
This commit is contained in:
H. Verbeet 2006-07-12 00:44:03 +02:00 committed by Alexandre Julliard
parent 7090259545
commit 0924f969d1
1 changed files with 25 additions and 0 deletions
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25
dlls/wined3d/utils.c
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@ -653,6 +653,17 @@ typedef struct {
GLenum component_usage[3];
} tex_op_args;
static BOOL is_invalid_op(IWineD3DDeviceImpl *This, int stage, D3DTEXTUREOP op, DWORD arg1, DWORD arg2, DWORD arg3) {
if (op == D3DTOP_DISABLE) return FALSE;
if (This->stateBlock->textures[stage]) return FALSE;
if (arg1 == D3DTA_TEXTURE && op != D3DTOP_SELECTARG2) return TRUE;
if (arg2 == D3DTA_TEXTURE && op != D3DTOP_SELECTARG1) return TRUE;
if (arg3 == D3DTA_TEXTURE && (op == D3DTOP_MULTIPLYADD || op == D3DTOP_LERP)) return TRUE;
return FALSE;
}
void set_tex_op_nvrc(IWineD3DDevice *iface, BOOL is_alpha, int stage, D3DTEXTUREOP op, DWORD arg1, DWORD arg2, DWORD arg3, INT texture_idx) {
IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl*)iface;
tex_op_args tex_op_args = {{0}, {0}, {0}};
@ -662,6 +673,13 @@ void set_tex_op_nvrc(IWineD3DDevice *iface, BOOL is_alpha, int stage, D3DTEXTURE
TRACE("stage %d, is_alpha %d, op %s, arg1 %#lx, arg2 %#lx, arg3 %#lx, texture_idx %d\n",
stage, is_alpha, debug_d3dtop(op), arg1, arg2, arg3, texture_idx);
/* If a texture stage references an invalid texture unit the stage just
* passes through the result from the previous stage */
if (is_invalid_op(This, stage, op, arg1, arg2, arg3)) {
arg1 = D3DTA_CURRENT;
op = D3DTOP_SELECTARG1;
}
get_src_and_opr_nvrc(stage, arg1, is_alpha, &tex_op_args.input[0],
&tex_op_args.mapping[0], &tex_op_args.component_usage[0], texture_idx);
get_src_and_opr_nvrc(stage, arg2, is_alpha, &tex_op_args.input[1],
@ -1053,6 +1071,13 @@ void set_tex_op(IWineD3DDevice *iface, BOOL isAlpha, int Stage, D3DTEXTUREOP op,
scal_target = useext(GL_RGB_SCALE);
}
/* If a texture stage references an invalid texture unit the stage just
* passes through the result from the previous stage */
if (is_invalid_op(This, Stage, op, arg1, arg2, arg3)) {
arg1 = D3DTA_CURRENT;
op = D3DTOP_SELECTARG1;
}
/* From MSDN (WINED3DTSS_ALPHAARG1) :
The default argument is D3DTA_TEXTURE. If no texture is set for this stage,
then the default argument is D3DTA_DIFFUSE.