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gl_device: Deduce indexing bug from device instead of heuristic 

The heuristic to detect AMD's driver was not working properly since it
also included Intel. Instead of using heuristics to detect it, compare
the GL_VENDOR string.
This commit is contained in:
ReinUsesLisp 2019-11-19 23:55:17 -03:00
parent 6d23b045a0
commit 410d44ce05
No known key found for this signature in database
GPG Key ID: 2DFC508897B39CFE
2 changed files with 2 additions and 48 deletions
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49
src/video_core/renderer_opengl/gl_device.cpp
View File

@ -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
View File

@ -86,7 +86,6 @@ public:
private:
static bool TestVariableAoffi();
static bool TestComponentIndexingBug();
static bool TestPreciseBug();
std::array<BaseBindings, Tegra::Engines::MaxShaderTypes> base_bindings;