diff options
| -rw-r--r-- | src/mesa/main/uniform_query.cpp | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp index 5371d6a176b..33ba53c2e7b 100644 --- a/src/mesa/main/uniform_query.cpp +++ b/src/mesa/main/uniform_query.cpp @@ -698,11 +698,27 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, prog = shProg->_LinkedShaders[i]->Program; + /* If the shader stage doesn't use any samplers, don't bother + * checking if any samplers have changed. + */ + if (prog->SamplersUsed == 0) + continue; + assert(sizeof(prog->SamplerUnits) == sizeof(shProg->SamplerUnits)); - if (memcmp(prog->SamplerUnits, - shProg->SamplerUnits, - sizeof(shProg->SamplerUnits)) != 0) { + /* Determine if any of the samplers used by this shader stage have + * been modified. + */ + bool changed = false; + for (unsigned j = 0; j < Elements(prog->SamplerUnits); j++) { + if ((prog->SamplersUsed & (1U << j)) != 0 + && (prog->SamplerUnits[j] != shProg->SamplerUnits[j])) { + changed = true; + break; + } + } + + if (changed) { if (!flushed) { FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM); flushed = true; |