Effectively disable _TexEnvProgram before calling _swrast_DrawPixels().
It's OK to use _TexEnvProgram regardless of the texture state, but if fog is also enabled, the fragment program is lacking the actual fog computation so fogging doesn't appear. Fixing this might involve a new _MaintainFogProgram field and related code. For now, just disable the _TexEnvProgram and let swrast handle everything.
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@@ -440,9 +440,21 @@ intelDrawPixels( GLcontext *ctx,
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fprintf(stderr, "%s\n", __FUNCTION__);
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if (!intelTryDrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels ))
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_swrast_DrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels );
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unpack, pixels )) {
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if (ctx->FragmentProgram._Current ==
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ctx->FragmentProgram._TexEnvProgram) {
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/* don't want the i915 texenv program to be applied to DrawPixels */
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struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
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ctx->FragmentProgram._Current = NULL;
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_swrast_DrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels );
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ctx->FragmentProgram._Current = fpSave;
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}
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else {
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_swrast_DrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels );
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}
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}
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}
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@@ -363,5 +363,17 @@ intelDrawPixels(GLcontext * ctx,
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if (INTEL_DEBUG & DEBUG_PIXEL)
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_mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
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_swrast_DrawPixels(ctx, x, y, width, height, format, type, unpack, pixels);
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if (ctx->FragmentProgram._Current ==
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ctx->FragmentProgram._TexEnvProgram) {
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/* don't want the i915 texenv program to be applied to DrawPixels */
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struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
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ctx->FragmentProgram._Current = NULL;
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_swrast_DrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels );
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ctx->FragmentProgram._Current = fpSave;
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}
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else {
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_swrast_DrawPixels( ctx, x, y, width, height, format, type,
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unpack, pixels );
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}
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}
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