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cogl-pipeline-fragend-arbfp: Generate ARBfp if user vertex shader

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The ARBfp fragend was bypassing generating a shader if the pipeline
contains a user program. However it shouldn't do this if the pipeline
only contains a vertex shader. This was breaking
test-cogl-just-vertex-shader.
This commit is contained in:
Neil Roberts 2010-12-14 13:02:47 +00:00
parent 9aea72fab5
commit 885942aec0
1 changed files with 13 additions and 4 deletions
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17
cogl/cogl-pipeline-fragend-arbfp.c
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@ -200,10 +200,19 @@ _cogl_pipeline_fragend_arbfp_start (CoglPipeline *pipeline,
return FALSE;
user_program = cogl_pipeline_get_user_program (pipeline);
if (user_program != COGL_INVALID_HANDLE &&
_cogl_program_has_fragment_shader (user_program) &&
_cogl_program_get_language (user_program) != COGL_SHADER_LANGUAGE_ARBFP)
return FALSE;
if (user_program != COGL_INVALID_HANDLE)
{
/* If the program doesn't have a fragment shader then some other
vertend will handle the vertex shader state and we still need
to generate a fragment program */
if (!_cogl_program_has_fragment_shader (user_program))
user_program = COGL_INVALID_HANDLE;
/* If the user program does have a fragment shader then we can
only handle it if it's in ARBfp */
else if (_cogl_program_get_language (user_program) !=
COGL_SHADER_LANGUAGE_ARBFP)
return FALSE;
}
/* Now lookup our ARBfp backend private state (allocating if
* necessary) */