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wined3d: Use Rx registers for sRGB correction if possible. 

This removes another reason to declare TA, TB and TC.
This commit is contained in:
Stefan Dösinger 2009-05-26 15:59:42 +02:00 committed by Alexandre Julliard
parent 6f74b45a81
commit 8665ee5906
1 changed files with 34 additions and 1 deletions
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35
dlls/wined3d/arb_program_shader.c
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@ -2046,6 +2046,39 @@ static GLuint shader_arb_generate_pshader(IWineD3DPixelShaderImpl *This,
char fragcolor[16];
DWORD *lconst_map = local_const_mapping((IWineD3DBaseShaderImpl *) This);
struct shader_arb_ctx_priv priv_ctx;
BOOL dcl_tmp = args->super.srgb_correction;
char srgbtmp[3][4];
unsigned int i, found = 0;
for(i = 0; i < This->baseShader.limits.temporary; i++) {
/* Don't overwrite the color source */
if(This->color0_mov && i == This->color0_reg) continue;
else if(reg_maps->shader_version.major < 2 && i == 0) continue;
if(reg_maps->temporary[i]) {
sprintf(srgbtmp[found], "R%u", i);
found++;
if(found == 3) break;
}
}
switch(found) {
case 3: dcl_tmp = FALSE; break;
case 0:
sprintf(srgbtmp[0], "TA");
sprintf(srgbtmp[1], "TB");
sprintf(srgbtmp[2], "TC");
break;
case 1:
sprintf(srgbtmp[1], "TA");
sprintf(srgbtmp[2], "TB");
break;
case 2:
sprintf(srgbtmp[2], "TA");
break;
}
/* Create the hw ARB shader */
memset(&priv_ctx, 0, sizeof(priv_ctx));
@ -2117,7 +2150,7 @@ static GLuint shader_arb_generate_pshader(IWineD3DPixelShaderImpl *This,
shader_generate_main((IWineD3DBaseShader *)This, buffer, reg_maps, function, &priv_ctx);
if(args->super.srgb_correction) {
arbfp_add_sRGB_correction(buffer, fragcolor, "TA", "TB", "TC");
arbfp_add_sRGB_correction(buffer, fragcolor, srgbtmp[0], srgbtmp[1], srgbtmp[2]);
shader_addline(buffer, "MOV result.color.a, %s;\n", fragcolor);
} else if(reg_maps->shader_version.major < 2) {
shader_addline(buffer, "MOV result.color, %s;\n", fragcolor);