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Merge pull request #3143 from ReinUsesLisp/indexing-bug

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gl_device: Deduce indexing bug from device instead of heuristic
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bunnei 2019-11-26 21:53:12 -05:00 committed by GitHub
commit 6df6caaf5f
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2 changed files with 2 additions and 48 deletions
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49
src/video_core/renderer_opengl/gl_device.cpp
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@ -137,6 +137,7 @@ Device::Device() : base_bindings{BuildBaseBindings()} {
const std::vector extensions = GetExtensions();
const bool is_nvidia = vendor == "NVIDIA Corporation";
const bool is_amd = vendor == "ATI Technologies Inc.";
const bool is_intel = vendor == "Intel";
uniform_buffer_alignment = GetInteger<std::size_t>(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT);
@ -149,7 +150,7 @@ Device::Device() : base_bindings{BuildBaseBindings()} {
has_vertex_viewport_layer = GLAD_GL_ARB_shader_viewport_layer_array;
has_image_load_formatted = HasExtension(extensions, "GL_EXT_shader_image_load_formatted");
has_variable_aoffi = TestVariableAoffi();
has_component_indexing_bug = TestComponentIndexingBug();
has_component_indexing_bug = is_amd;
has_precise_bug = TestPreciseBug();
has_broken_compute = is_intel;
has_fast_buffer_sub_data = is_nvidia;
@ -184,52 +185,6 @@ void main() {
})");
}
bool Device::TestComponentIndexingBug() {
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)) {
return true;
}
}
return false;
}
bool Device::TestPreciseBug() {
return !TestProgram(R"(#version 430 core
in vec3 coords;

1
src/video_core/renderer_opengl/gl_device.h
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@ -86,7 +86,6 @@ public:
private:
static bool TestVariableAoffi();
static bool TestComponentIndexingBug();
static bool TestPreciseBug();
std::array<BaseBindings, Tegra::Engines::MaxShaderTypes> base_bindings;