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glsl: fix shader storage block member rules when adding program resources

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Commit f24e5e did not take into account arrays of named shader
storage blocks.

Fixes 20 dEQP-GLES31.functional.ssbo.* tests:

dEQP-GLES31.functional.ssbo.layout.single_struct_array.per_block_buffer.shared_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.per_block_buffer.packed_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.per_block_buffer.std140_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.per_block_buffer.std430_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.single_buffer.shared_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.single_buffer.packed_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.single_buffer.std140_instance_array
dEQP-GLES31.functional.ssbo.layout.single_struct_array.single_buffer.std430_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.per_block_buffer.shared_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.per_block_buffer.packed_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.per_block_buffer.std140_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.per_block_buffer.std430_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.single_buffer.shared_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.single_buffer.packed_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.single_buffer.std140_instance_array
dEQP-GLES31.functional.ssbo.layout.single_nested_struct_array.single_buffer.std430_instance_array
dEQP-GLES31.functional.ssbo.layout.random.all_per_block_buffers.2
dEQP-GLES31.functional.ssbo.layout.random.all_per_block_buffers.29
dEQP-GLES31.functional.ssbo.layout.random.all_per_block_buffers.33
dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.3

V2:
- Rename some variables (Timothy)

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
This commit is contained in:
Samuel Iglesias Gonsalvez
2015-10-21 09:46:48 +02:00
parent 582ecb3b91
commit f408a13dd3
1 changed files with 27 additions and 6 deletions
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33
src/glsl/linker.cpp
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@@ -3137,7 +3137,8 @@ should_add_buffer_variable(struct gl_shader_program *shProg,
GLenum type, const char *name)
{
bool found_interface = false;
const char *block_name = NULL;
unsigned block_name_len = 0;
const char *block_name_dot = strchr(name, '.');
/* These rules only apply to buffer variables. So we return
* true for the rest of types.
@@ -3146,8 +3147,28 @@ should_add_buffer_variable(struct gl_shader_program *shProg,
return true;
for (unsigned i = 0; i < shProg->NumBufferInterfaceBlocks; i++) {
block_name = shProg->BufferInterfaceBlocks[i].Name;
if (strncmp(block_name, name, strlen(block_name)) == 0) {
const char *block_name = shProg->BufferInterfaceBlocks[i].Name;
block_name_len = strlen(block_name);
const char *block_square_bracket = strchr(block_name, '[');
if (block_square_bracket) {
/* The block is part of an array of named interfaces,
* for the name comparison we ignore the "[x]" part.
*/
block_name_len -= strlen(block_square_bracket);
}
if (block_name_dot) {
/* Check if the variable name starts with the interface
* name. The interface name (if present) should have the
* length than the interface block name we are comparing to.
*/
unsigned len = strlen(name) - strlen(block_name_dot);
if (len != block_name_len)
continue;
}
if (strncmp(block_name, name, block_name_len) == 0) {
found_interface = true;
break;
}
@@ -3157,7 +3178,7 @@ should_add_buffer_variable(struct gl_shader_program *shProg,
* including the dot that follows it.
*/
if (found_interface)
name = name + strlen(block_name) + 1;
name = name + block_name_len + 1;
/* From: ARB_program_interface_query extension:
*
@@ -3166,14 +3187,14 @@ should_add_buffer_variable(struct gl_shader_program *shProg,
* of its type. For arrays of aggregate types, the enumeration rules are
* applied recursively for the single enumerated array element.
*/
const char *first_dot = strchr(name, '.');
const char *struct_first_dot = strchr(name, '.');
const char *first_square_bracket = strchr(name, '[');
/* The buffer variable is on top level and it is not an array */
if (!first_square_bracket) {
return true;
/* The shader storage block member is a struct, then generate the entry */
} else if (first_dot && first_dot < first_square_bracket) {
} else if (struct_first_dot && struct_first_dot < first_square_bracket) {
return true;
} else {
/* Shader storage block member is an array, only generate an entry for the