diff options
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/glsl/link_uniform_blocks.cpp | 65 | ||||
| -rw-r--r-- | src/glsl/link_uniforms.cpp | 22 | ||||
| -rw-r--r-- | src/glsl/linker.h | 4 |
4 files changed, 73 insertions, 19 deletions
diff --git a/src/glsl/Makefile.sources b/src/glsl/Makefile.sources index 90f30187fd5..d9c9af829e4 100644 --- a/src/glsl/Makefile.sources +++ b/src/glsl/Makefile.sources @@ -47,6 +47,7 @@ LIBGLSL_FILES = \ $(GLSL_SRCDIR)/link_functions.cpp \ $(GLSL_SRCDIR)/link_uniforms.cpp \ $(GLSL_SRCDIR)/link_uniform_initializers.cpp \ + $(GLSL_SRCDIR)/link_uniform_blocks.cpp \ $(GLSL_SRCDIR)/link_varyings.cpp \ $(GLSL_SRCDIR)/loop_analysis.cpp \ $(GLSL_SRCDIR)/loop_controls.cpp \ diff --git a/src/glsl/link_uniform_blocks.cpp b/src/glsl/link_uniform_blocks.cpp new file mode 100644 index 00000000000..c9cbde95b6f --- /dev/null +++ b/src/glsl/link_uniform_blocks.cpp @@ -0,0 +1,65 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include "main/core.h" +#include "ir.h" +#include "linker.h" +#include "ir_uniform.h" +#include "program.h" + +bool +link_uniform_blocks_are_compatible(const gl_uniform_block *a, + const gl_uniform_block *b) +{ + assert(strcmp(a->Name, b->Name) == 0); + + /* Page 35 (page 42 of the PDF) in section 4.3.7 of the GLSL 1.50 spec says: + * + * "Matched block names within an interface (as defined above) must + * match in terms of having the same number of declarations with the + * same sequence of types and the same sequence of member names, as + * well as having the same member-wise layout qualification....if a + * matching block is declared as an array, then the array sizes must + * also match... Any mismatch will generate a link error." + * + * Arrays are not yet supported, so there is no check for that. + */ + if (a->NumUniforms != b->NumUniforms) + return false; + + if (a->_Packing != b->_Packing) + return false; + + for (unsigned i = 0; i < a->NumUniforms; i++) { + if (strcmp(a->Uniforms[i].Name, b->Uniforms[i].Name) != 0) + return false; + + if (a->Uniforms[i].Type != b->Uniforms[i].Type) + return false; + + if (a->Uniforms[i].RowMajor != b->Uniforms[i].RowMajor) + return false; + } + + return true; +} diff --git a/src/glsl/link_uniforms.cpp b/src/glsl/link_uniforms.cpp index 07d9c18dea0..25bba15bdbe 100644 --- a/src/glsl/link_uniforms.cpp +++ b/src/glsl/link_uniforms.cpp @@ -399,26 +399,10 @@ link_cross_validate_uniform_block(void *mem_ctx, { for (unsigned int i = 0; i < *num_linked_blocks; i++) { struct gl_uniform_block *old_block = &(*linked_blocks)[i]; - if (strcmp(old_block->Name, new_block->Name) == 0) { - if (old_block->NumUniforms != new_block->NumUniforms) { - return -1; - } - - for (unsigned j = 0; j < old_block->NumUniforms; j++) { - if (strcmp(old_block->Uniforms[j].Name, - new_block->Uniforms[j].Name) != 0) - return -1; - - if (old_block->Uniforms[j].Offset != - new_block->Uniforms[j].Offset) - return -1; - if (old_block->Uniforms[j].RowMajor != - new_block->Uniforms[j].RowMajor) - return -1; - } - return i; - } + if (strcmp(old_block->Name, new_block->Name) == 0) + return link_uniform_blocks_are_compatible(old_block, new_block) + ? i : -1; } *linked_blocks = reralloc(mem_ctx, *linked_blocks, diff --git a/src/glsl/linker.h b/src/glsl/linker.h index 67c7f348859..c8f38444c82 100644 --- a/src/glsl/linker.h +++ b/src/glsl/linker.h @@ -49,6 +49,10 @@ link_cross_validate_uniform_block(void *mem_ctx, void link_assign_uniform_block_offsets(struct gl_shader *shader); +extern bool +link_uniform_blocks_are_compatible(const gl_uniform_block *a, + const gl_uniform_block *b); + /** * Class for processing all of the leaf fields of an uniform * |