From b84d429c2ec59e54a89d9d4e34b0df9f22172e8f Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Mon, 27 Dec 2021 23:59:32 -0500
Subject: glsl_context_get_set: Add alternative cbuf type for broken drivers
some drivers have a bug bitwise converting floating point cbuf values to uint variables. This adds a workaround for these drivers to make all cbufs uint and convert to floating point as needed.
---
src/shader_recompiler/backend/glsl/glsl_emit_context.cpp | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'src/shader_recompiler/backend/glsl/glsl_emit_context.cpp')
diff --git a/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp b/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp
index bc9d2a904a..bb7f1a0fd3 100644
--- a/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp
+++ b/src/shader_recompiler/backend/glsl/glsl_emit_context.cpp
@@ -428,9 +428,10 @@ void EmitContext::DefineConstantBuffers(Bindings& bindings) {
return;
}
for (const auto& desc : info.constant_buffer_descriptors) {
- header += fmt::format(
- "layout(std140,binding={}) uniform {}_cbuf_{}{{vec4 {}_cbuf{}[{}];}};",
- bindings.uniform_buffer, stage_name, desc.index, stage_name, desc.index, 4 * 1024);
+ const auto cbuf_type{profile.has_gl_cbuf_ftou_bug ? "uvec4" : "vec4"};
+ header += fmt::format("layout(std140,binding={}) uniform {}_cbuf_{}{{{} {}_cbuf{}[{}];}};",
+ bindings.uniform_buffer, stage_name, desc.index, cbuf_type,
+ stage_name, desc.index, 4 * 1024);
bindings.uniform_buffer += desc.count;
}
}
--
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