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glsl: Clamp shared mem size to GL_MAX_COMPUTE_SHARED_MEMORY_SIZE

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This commit is contained in:
ameerj
2021-07-12 02:03:25 -04:00
parent 8c166c68d4
commit 94af0a00f6
3 changed files with 12 additions and 2 deletions
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11
src/shader_recompiler/backend/glsl/emit_glsl.cpp
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@ -218,8 +218,15 @@ std::string EmitGLSL(const Profile& profile, const RuntimeInfo& runtime_info, IR
const std::string version{fmt::format("#version 450{}\n", GlslVersionSpecifier(ctx))};
ctx.header.insert(0, version);
if (program.shared_memory_size > 0) {
ctx.header +=
fmt::format("shared uint smem[{}];", Common::DivCeil(program.shared_memory_size, 4U));
const auto requested_size{program.shared_memory_size};
const auto max_size{profile.gl_max_compute_smem_size};
const bool needs_clamp{requested_size > max_size};
if (needs_clamp) {
LOG_WARNING(Shader_GLSL, "Requested shared memory size ({}) exceeds device limit ({})",
requested_size, max_size);
}
const auto smem_size{needs_clamp ? max_size : requested_size};
ctx.header += fmt::format("shared uint smem[{}];", Common::DivCeil(smem_size, 4U));
}
ctx.header += "void main(){\n";
if (program.local_memory_size > 0) {