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glsl: serialize data from glTransformFeedbackVaryings 

While XFB has been enabled for cache, we did not serialize enough
data for the whole API to work (such as glGetProgramiv).

Fixes: 6d830940f7 "Allow shader cache usage with transform feedback"
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106907
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Tapani Pälli 2018-06-14 11:10:20 +03:00
parent bcbd8dd6c9
commit ab2643e4b0
1 changed files with 20 additions and 0 deletions
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20
src/compiler/glsl/serialize.cpp
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@ -323,6 +323,14 @@ write_xfb(struct blob *metadata, struct gl_shader_program *shProg)
blob_write_uint32(metadata, prog->info.stage);
/* Data set by glTransformFeedbackVaryings. */
blob_write_uint32(metadata, shProg->TransformFeedback.BufferMode);
blob_write_bytes(metadata, shProg->TransformFeedback.BufferStride,
sizeof(shProg->TransformFeedback.BufferStride));
blob_write_uint32(metadata, shProg->TransformFeedback.NumVarying);
for (unsigned i = 0; i < shProg->TransformFeedback.NumVarying; i++)
blob_write_string(metadata, shProg->TransformFeedback.VaryingNames[i]);
blob_write_uint32(metadata, ltf->NumOutputs);
blob_write_uint32(metadata, ltf->ActiveBuffers);
blob_write_uint32(metadata, ltf->NumVarying);
@ -352,6 +360,18 @@ read_xfb(struct blob_reader *metadata, struct gl_shader_program *shProg)
if (xfb_stage == ~0u)
return;
/* Data set by glTransformFeedbackVaryings. */
shProg->TransformFeedback.BufferMode = blob_read_uint32(metadata);
blob_copy_bytes(metadata, &shProg->TransformFeedback.BufferStride,
sizeof(shProg->TransformFeedback.BufferStride));
shProg->TransformFeedback.NumVarying = blob_read_uint32(metadata);
shProg->TransformFeedback.VaryingNames = (char **)
malloc(shProg->TransformFeedback.NumVarying * sizeof(GLchar *));
/* Note, malloc used with VaryingNames. */
for (unsigned i = 0; i < shProg->TransformFeedback.NumVarying; i++)
shProg->TransformFeedback.VaryingNames[i] =
strdup(blob_read_string(metadata));
struct gl_program *prog = shProg->_LinkedShaders[xfb_stage]->Program;
struct gl_transform_feedback_info *ltf =
rzalloc(prog, struct gl_transform_feedback_info);