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-rw-r--r--src/video_core/renderer_opengl/gl_device.cpp54
-rw-r--r--src/video_core/renderer_opengl/gl_device.h6
2 files changed, 60 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
index 38497678a..5f86574cd 100644
--- a/src/video_core/renderer_opengl/gl_device.cpp
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -2,11 +2,14 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <array>
#include <cstddef>
#include <glad/glad.h>
#include "common/logging/log.h"
+#include "common/scope_exit.h"
#include "video_core/renderer_opengl/gl_device.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
namespace OpenGL {
@@ -24,6 +27,7 @@ Device::Device() {
max_vertex_attributes = GetInteger<u32>(GL_MAX_VERTEX_ATTRIBS);
max_varyings = GetInteger<u32>(GL_MAX_VARYING_VECTORS);
has_variable_aoffi = TestVariableAoffi();
+ has_component_indexing_bug = TestComponentIndexingBug();
}
Device::Device(std::nullptr_t) {
@@ -31,6 +35,7 @@ Device::Device(std::nullptr_t) {
max_vertex_attributes = 16;
max_varyings = 15;
has_variable_aoffi = true;
+ has_component_indexing_bug = false;
}
bool Device::TestVariableAoffi() {
@@ -51,4 +56,53 @@ void main() {
return supported;
}
+bool Device::TestComponentIndexingBug() {
+ constexpr char log_message[] = "Renderer_ComponentIndexingBug: {}";
+ const GLchar* COMPONENT_TEST = R"(#version 430 core
+layout (std430, binding = 0) buffer OutputBuffer {
+ uint output_value;
+};
+layout (std140, binding = 0) uniform InputBuffer {
+ uvec4 input_value[4096];
+};
+layout (location = 0) uniform uint idx;
+void main() {
+ output_value = input_value[idx >> 2][idx & 3];
+})";
+ const GLuint shader{glCreateShaderProgramv(GL_VERTEX_SHADER, 1, &COMPONENT_TEST)};
+ SCOPE_EXIT({ glDeleteProgram(shader); });
+ glUseProgram(shader);
+
+ OGLVertexArray vao;
+ vao.Create();
+ glBindVertexArray(vao.handle);
+
+ constexpr std::array<GLuint, 8> values{0, 0, 0, 0, 0x1236327, 0x985482, 0x872753, 0x2378432};
+ OGLBuffer ubo;
+ ubo.Create();
+ glNamedBufferData(ubo.handle, sizeof(values), values.data(), GL_STATIC_DRAW);
+ glBindBufferBase(GL_UNIFORM_BUFFER, 0, ubo.handle);
+
+ OGLBuffer ssbo;
+ ssbo.Create();
+ glNamedBufferStorage(ssbo.handle, sizeof(GLuint), nullptr, GL_CLIENT_STORAGE_BIT);
+
+ for (GLuint index = 4; index < 8; ++index) {
+ glInvalidateBufferData(ssbo.handle);
+ glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, ssbo.handle);
+
+ glProgramUniform1ui(shader, 0, index);
+ glDrawArrays(GL_POINTS, 0, 1);
+
+ GLuint result;
+ glGetNamedBufferSubData(ssbo.handle, 0, sizeof(result), &result);
+ if (result != values.at(index)) {
+ LOG_INFO(Render_OpenGL, log_message, true);
+ return true;
+ }
+ }
+ LOG_INFO(Render_OpenGL, log_message, false);
+ return false;
+}
+
} // namespace OpenGL
diff --git a/src/video_core/renderer_opengl/gl_device.h b/src/video_core/renderer_opengl/gl_device.h
index de8490682..8c8c93760 100644
--- a/src/video_core/renderer_opengl/gl_device.h
+++ b/src/video_core/renderer_opengl/gl_device.h
@@ -30,13 +30,19 @@ public:
return has_variable_aoffi;
}
+ bool HasComponentIndexingBug() const {
+ return has_component_indexing_bug;
+ }
+
private:
static bool TestVariableAoffi();
+ static bool TestComponentIndexingBug();
std::size_t uniform_buffer_alignment{};
u32 max_vertex_attributes{};
u32 max_varyings{};
bool has_variable_aoffi{};
+ bool has_component_indexing_bug{};
};
} // namespace OpenGL