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authorTimothy Arceri <[email protected]>2016-03-24 12:11:01 +1100
committerTimothy Arceri <[email protected]>2016-03-26 09:26:30 +1100
commit8683d54d2be82519c31e087e17dd936d13fa9d07 (patch)
tree434fd99512a25b6cd37ad616870619e646e10291 /src/compiler/glsl
parenta8e5edaadfd5df6a473566ff55978aca27a37679 (diff)
glsl: reduce buffer block duplication
This reduces some of the craziness required for handling buffer blocks. The problem is each shader stage holds its own information about a block in memory, we were copying that information to a program wide list but the per stage information remained meaning when a binding was updated we needed to update all versions of it. This changes the per stage blocks to instead point to a single version of the block information in the program list. Acked-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/compiler/glsl')
-rw-r--r--src/compiler/glsl/link_uniform_initializers.cpp2
-rw-r--r--src/compiler/glsl/link_uniforms.cpp12
-rw-r--r--src/compiler/glsl/linker.cpp78
-rw-r--r--src/compiler/glsl/standalone_scaffolding.cpp5
4 files changed, 54 insertions, 43 deletions
diff --git a/src/compiler/glsl/link_uniform_initializers.cpp b/src/compiler/glsl/link_uniform_initializers.cpp
index 3609f81771e..7d280ccf7fc 100644
--- a/src/compiler/glsl/link_uniform_initializers.cpp
+++ b/src/compiler/glsl/link_uniform_initializers.cpp
@@ -183,7 +183,7 @@ set_block_binding(gl_shader_program *prog, const char *block_name, int binding)
if (stage_index != -1) {
struct gl_shader *sh = prog->_LinkedShaders[i];
- sh->BufferInterfaceBlocks[stage_index].Binding = binding;
+ sh->BufferInterfaceBlocks[stage_index]->Binding = binding;
}
}
}
diff --git a/src/compiler/glsl/link_uniforms.cpp b/src/compiler/glsl/link_uniforms.cpp
index 940cc61181d..807b069e3ed 100644
--- a/src/compiler/glsl/link_uniforms.cpp
+++ b/src/compiler/glsl/link_uniforms.cpp
@@ -954,6 +954,8 @@ link_cross_validate_uniform_block(void *mem_ctx,
new_block->Uniforms,
sizeof(*linked_block->Uniforms) * linked_block->NumUniforms);
+ linked_block->Name = ralloc_strdup(*linked_blocks, linked_block->Name);
+
for (unsigned int i = 0; i < linked_block->NumUniforms; i++) {
struct gl_uniform_buffer_variable *ubo_var =
&linked_block->Uniforms[i];
@@ -1005,9 +1007,9 @@ link_update_uniform_buffer_variables(struct gl_shader *shader)
const unsigned l = strlen(var->name);
for (unsigned i = 0; i < shader->NumBufferInterfaceBlocks; i++) {
- for (unsigned j = 0; j < shader->BufferInterfaceBlocks[i].NumUniforms; j++) {
+ for (unsigned j = 0; j < shader->BufferInterfaceBlocks[i]->NumUniforms; j++) {
if (sentinel) {
- const char *begin = shader->BufferInterfaceBlocks[i].Uniforms[j].Name;
+ const char *begin = shader->BufferInterfaceBlocks[i]->Uniforms[j].Name;
const char *end = strchr(begin, sentinel);
if (end == NULL)
@@ -1022,7 +1024,7 @@ link_update_uniform_buffer_variables(struct gl_shader *shader)
break;
}
} else if (!strcmp(var->name,
- shader->BufferInterfaceBlocks[i].Uniforms[j].Name)) {
+ shader->BufferInterfaceBlocks[i]->Uniforms[j].Name)) {
found = true;
var->data.location = j;
break;
@@ -1148,9 +1150,9 @@ link_assign_uniform_locations(struct gl_shader_program *prog,
sh->num_combined_uniform_components = sh->num_uniform_components;
for (unsigned i = 0; i < sh->NumBufferInterfaceBlocks; i++) {
- if (!sh->BufferInterfaceBlocks[i].IsShaderStorage) {
+ if (!sh->BufferInterfaceBlocks[i]->IsShaderStorage) {
sh->num_combined_uniform_components +=
- sh->BufferInterfaceBlocks[i].UniformBufferSize / 4;
+ sh->BufferInterfaceBlocks[i]->UniformBufferSize / 4;
}
}
}
diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index 76b700d3451..cd35464eeeb 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -1192,11 +1192,11 @@ interstage_cross_validate_uniform_blocks(struct gl_shader_program *prog)
int index = link_cross_validate_uniform_block(prog,
&prog->BufferInterfaceBlocks,
&prog->NumBufferInterfaceBlocks,
- &sh->BufferInterfaceBlocks[j]);
+ sh->BufferInterfaceBlocks[j]);
if (index == -1) {
linker_error(prog, "uniform block `%s' has mismatching definitions\n",
- sh->BufferInterfaceBlocks[j].Name);
+ sh->BufferInterfaceBlocks[j]->Name);
return false;
}
@@ -1204,6 +1204,23 @@ interstage_cross_validate_uniform_blocks(struct gl_shader_program *prog)
}
}
+ /* Update per stage block pointers to point to the program list.
+ * FIXME: We should be able to free the per stage blocks here.
+ */
+ for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
+ for (unsigned j = 0; j < prog->NumBufferInterfaceBlocks; j++) {
+ int stage_index =
+ prog->InterfaceBlockStageIndex[i][j];
+
+ if (stage_index != -1) {
+ struct gl_shader *sh = prog->_LinkedShaders[i];
+
+ sh->BufferInterfaceBlocks[stage_index] =
+ &prog->BufferInterfaceBlocks[j];
+ }
+ }
+ }
+
return true;
}
@@ -2069,9 +2086,15 @@ link_intrastage_shaders(void *mem_ctx,
linked->ir = new(linked) exec_list;
clone_ir_list(mem_ctx, linked->ir, main->ir);
- linked->BufferInterfaceBlocks = uniform_blocks;
+ linked->BufferInterfaceBlocks =
+ ralloc_array(linked, gl_uniform_block *, num_uniform_blocks);
+
+ ralloc_steal(linked, uniform_blocks);
+ for (unsigned i = 0; i < num_uniform_blocks; i++) {
+ linked->BufferInterfaceBlocks[i] = &uniform_blocks[i];
+ }
+
linked->NumBufferInterfaceBlocks = num_uniform_blocks;
- ralloc_steal(linked, linked->BufferInterfaceBlocks);
link_fs_input_layout_qualifiers(prog, linked, shader_list, num_shaders);
link_tcs_out_layout_qualifiers(prog, linked, shader_list, num_shaders);
@@ -2869,7 +2892,8 @@ check_resources(struct gl_context *ctx, struct gl_shader_program *prog)
if (prog->InterfaceBlockStageIndex[j][i] != -1) {
struct gl_shader *sh = prog->_LinkedShaders[j];
int stage_index = prog->InterfaceBlockStageIndex[j][i];
- if (sh && sh->BufferInterfaceBlocks[stage_index].IsShaderStorage) {
+ if (sh &&
+ sh->BufferInterfaceBlocks[stage_index]->IsShaderStorage) {
shader_blocks[j]++;
total_shader_storage_blocks++;
} else {
@@ -2986,7 +3010,8 @@ check_image_resources(struct gl_context *ctx, struct gl_shader_program *prog)
for (unsigned j = 0; j < prog->NumBufferInterfaceBlocks; j++) {
int stage_index = prog->InterfaceBlockStageIndex[i][j];
- if (stage_index != -1 && sh->BufferInterfaceBlocks[stage_index].IsShaderStorage)
+ if (stage_index != -1 &&
+ sh->BufferInterfaceBlocks[stage_index]->IsShaderStorage)
total_shader_storage_blocks++;
}
@@ -4006,20 +4031,22 @@ link_assign_subroutine_types(struct gl_shader_program *prog)
static void
split_ubos_and_ssbos(void *mem_ctx,
- struct gl_uniform_block *blocks,
+ struct gl_uniform_block **s_blks,
+ struct gl_uniform_block *p_blks,
unsigned num_blocks,
struct gl_uniform_block ***ubos,
unsigned *num_ubos,
- unsigned **ubo_interface_block_indices,
struct gl_uniform_block ***ssbos,
- unsigned *num_ssbos,
- unsigned **ssbo_interface_block_indices)
+ unsigned *num_ssbos)
{
unsigned num_ubo_blocks = 0;
unsigned num_ssbo_blocks = 0;
+ /* Are we spliting the list of blocks for the shader or the program */
+ bool is_shader = p_blks == NULL;
+
for (unsigned i = 0; i < num_blocks; i++) {
- if (blocks[i].IsShaderStorage)
+ if (is_shader ? s_blks[i]->IsShaderStorage : p_blks[i].IsShaderStorage)
num_ssbo_blocks++;
else
num_ubo_blocks++;
@@ -4031,24 +4058,13 @@ split_ubos_and_ssbos(void *mem_ctx,
*ssbos = ralloc_array(mem_ctx, gl_uniform_block *, num_ssbo_blocks);
*num_ssbos = 0;
- if (ubo_interface_block_indices)
- *ubo_interface_block_indices =
- ralloc_array(mem_ctx, unsigned, num_ubo_blocks);
-
- if (ssbo_interface_block_indices)
- *ssbo_interface_block_indices =
- ralloc_array(mem_ctx, unsigned, num_ssbo_blocks);
-
for (unsigned i = 0; i < num_blocks; i++) {
- if (blocks[i].IsShaderStorage) {
- (*ssbos)[*num_ssbos] = &blocks[i];
- if (ssbo_interface_block_indices)
- (*ssbo_interface_block_indices)[*num_ssbos] = i;
+ struct gl_uniform_block *blk = is_shader ? s_blks[i] : &p_blks[i];
+ if (blk->IsShaderStorage) {
+ (*ssbos)[*num_ssbos] = blk;
(*num_ssbos)++;
} else {
- (*ubos)[*num_ubos] = &blocks[i];
- if (ubo_interface_block_indices)
- (*ubo_interface_block_indices)[*num_ubos] = i;
+ (*ubos)[*num_ubos] = blk;
(*num_ubos)++;
}
}
@@ -4627,25 +4643,23 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
gl_shader *sh = prog->_LinkedShaders[i];
split_ubos_and_ssbos(sh,
sh->BufferInterfaceBlocks,
+ NULL,
sh->NumBufferInterfaceBlocks,
&sh->UniformBlocks,
&sh->NumUniformBlocks,
- NULL,
&sh->ShaderStorageBlocks,
- &sh->NumShaderStorageBlocks,
- NULL);
+ &sh->NumShaderStorageBlocks);
}
}
split_ubos_and_ssbos(prog,
+ NULL,
prog->BufferInterfaceBlocks,
prog->NumBufferInterfaceBlocks,
&prog->UniformBlocks,
&prog->NumUniformBlocks,
- &prog->UboInterfaceBlockIndex,
&prog->ShaderStorageBlocks,
- &prog->NumShaderStorageBlocks,
- &prog->SsboInterfaceBlockIndex);
+ &prog->NumShaderStorageBlocks);
for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
if (prog->_LinkedShaders[i] == NULL)
diff --git a/src/compiler/glsl/standalone_scaffolding.cpp b/src/compiler/glsl/standalone_scaffolding.cpp
index d5d214b57cc..e350f702099 100644
--- a/src/compiler/glsl/standalone_scaffolding.cpp
+++ b/src/compiler/glsl/standalone_scaffolding.cpp
@@ -124,11 +124,6 @@ _mesa_clear_shader_program_data(struct gl_shader_program *shProg)
shProg->InterfaceBlockStageIndex[i] = NULL;
}
- ralloc_free(shProg->UboInterfaceBlockIndex);
- shProg->UboInterfaceBlockIndex = NULL;
- ralloc_free(shProg->SsboInterfaceBlockIndex);
- shProg->SsboInterfaceBlockIndex = NULL;
-
ralloc_free(shProg->AtomicBuffers);
shProg->AtomicBuffers = NULL;
shProg->NumAtomicBuffers = 0;