gl_shader_cache: Update commentary for shared memory

Remove false commentary. Not dividing by 4 the size of shared memory is
not a hack; it describes the number of integers, not bytes.

While we are at it sort the generated code to put preprocessor lines on
the top.
This commit is contained in:
ReinUsesLisp 2019-12-20 22:51:19 -03:00
parent 486c6a5316
commit 1e16023d60
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@ -264,28 +264,25 @@ CachedProgram BuildShader(const Device& device, u64 unique_identifier, ShaderTyp
"#extension GL_NV_shader_thread_group : require\n"
"#extension GL_NV_shader_thread_shuffle : require\n";
}
source += '\n';
if (shader_type == ShaderType::Geometry) {
const auto [glsl_topology, max_vertices] = GetPrimitiveDescription(variant.primitive_mode);
source += fmt::format("#define MAX_VERTEX_INPUT {}\n", max_vertices);
source += fmt::format("layout ({}) in;\n\n", glsl_topology);
source += fmt::format("layout ({}) in;\n", glsl_topology);
}
if (shader_type == ShaderType::Compute) {
if (variant.local_memory_size > 0) {
source += fmt::format("#define LOCAL_MEMORY_SIZE {}\n",
Common::AlignUp(variant.local_memory_size, 4) / 4);
}
source +=
fmt::format("layout (local_size_x = {}, local_size_y = {}, local_size_z = {}) in;\n",
variant.block_x, variant.block_y, variant.block_z);
if (variant.shared_memory_size > 0) {
// TODO(Rodrigo): We should divide by four here, but having a larger shared memory pool
// avoids out of bound stores. Find out why shared memory size is being invalid.
// shared_memory_size is described in number of words
source += fmt::format("shared uint smem[{}];\n", variant.shared_memory_size);
}
if (variant.local_memory_size > 0) {
source += fmt::format("#define LOCAL_MEMORY_SIZE {}\n",
Common::AlignUp(variant.local_memory_size, 4) / 4);
}
}
source += '\n';