From 13322a6590b9e64a9a9f8dd304898e9ab6bedd49 Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Wed, 17 Jun 2015 23:03:52 +1000 Subject: [PATCH] mesa: fix active sampler conflict validation MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The type stored in gl_uniform_storage is the type of a single array element not the array type so size was always 1. V2: Dont validate sampler units pointing to 0 Reviewed-by: Samuel Iglesias Gonsálvez --- src/mesa/main/uniform_query.cpp | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp index cab5083..b5a94e9 100644 --- a/src/mesa/main/uniform_query.cpp +++ b/src/mesa/main/uniform_query.cpp @@ -1101,18 +1101,23 @@ _mesa_sampler_uniforms_pipeline_are_valid(struct gl_pipeline_object *pipeline) for (unsigned i = 0; i < shProg[idx]->NumUniformStorage; i++) { const struct gl_uniform_storage *const storage = &shProg[idx]->UniformStorage[i]; - const glsl_type *const t = (storage->type->is_array()) - ? storage->type->fields.array : storage->type; - if (!t->is_sampler()) + if (!storage->type->is_sampler()) continue; active_samplers++; - const unsigned count = MAX2(1, storage->type->array_size()); + const unsigned count = MAX2(1, storage->array_elements); for (unsigned j = 0; j < count; j++) { const unsigned unit = storage->storage[j].i; + /* FIXME: Samplers are initialized to 0 and Mesa doesn't do a + * great job of eliminating unused uniforms currently so for now + * don't throw an error if two sampler types both point to 0. + */ + if (unit == 0) + continue; + /* The types of the samplers associated with a particular texture * unit must be an exact match. Page 74 (page 89 of the PDF) of * the OpenGL 3.3 core spec says: @@ -1122,13 +1127,14 @@ _mesa_sampler_uniforms_pipeline_are_valid(struct gl_pipeline_object *pipeline) * program object." */ if (unit_types[unit] == NULL) { - unit_types[unit] = t; - } else if (unit_types[unit] != t) { + unit_types[unit] = storage->type; + } else if (unit_types[unit] != storage->type) { pipeline->InfoLog = ralloc_asprintf(pipeline, "Texture unit %d is accessed both as %s " "and %s", - unit, unit_types[unit]->name, t->name); + unit, unit_types[unit]->name, + storage->type->name); return false; } } -- 2.7.4