st/mesa: set MaxUnrollIterations = 255
The default was 32 for the EmitNoLoops=0 case. This allows the oZone3D soft shadows test to work properly with the vmware driver. Jose reported that SM3 supports up to 255 loop iterations. NOTE: This is a candidate for the 8.0 branch. Reviewed-by: José Fonseca <jfonseca@vmware.com>
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@ -216,6 +216,8 @@ void st_init_limits(struct st_context *st)
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if (options->EmitNoLoops)
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options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);
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else
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options->MaxUnrollIterations = 255; /* SM3 limit */
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}
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/* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
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