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gl_shader_decompiler: Fix constant buffer size calculation

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The divide logic was wrong and can cause an uniform buffer size
overflow.
This commit is contained in:
ReinUsesLisp 2021-01-21 19:44:05 -03:00
parent 4cd8b2f1f7
commit 436457b6e7
1 changed files with 2 additions and 1 deletions
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3
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -14,6 +14,7 @@
#include "common/alignment.h" #include "common/alignment.h"
#include "common/assert.h" #include "common/assert.h"
#include "common/common_types.h" #include "common/common_types.h"
#include "common/div_ceil.h"
#include "common/logging/log.h" #include "common/logging/log.h"
#include "video_core/engines/maxwell_3d.h" #include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_type.h" #include "video_core/engines/shader_type.h"
@ -877,7 +878,7 @@ private:
u32 binding = device.GetBaseBindings(stage).uniform_buffer; u32 binding = device.GetBaseBindings(stage).uniform_buffer;
for (const auto& [index, info] : ir.GetConstantBuffers()) { for (const auto& [index, info] : ir.GetConstantBuffers()) {
const u32 num_elements = Common::AlignUp(info.GetSize(), 4) / 4; const u32 num_elements = Common::DivCeil(info.GetSize(), 4 * sizeof(u32));
const u32 size = info.IsIndirect() ? MAX_CONSTBUFFER_ELEMENTS : num_elements; const u32 size = info.IsIndirect() ? MAX_CONSTBUFFER_ELEMENTS : num_elements;
code.AddLine("layout (std140, binding = {}) uniform {} {{", binding++, code.AddLine("layout (std140, binding = {}) uniform {} {{", binding++,
GetConstBufferBlock(index)); GetConstBufferBlock(index));