62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <string_view>
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#include <vector>
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#include <glad/glad.h>
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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "video_core/renderer_opengl/gl_shader_util.h"
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namespace OpenGL::GLShader {
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namespace {
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std::string_view StageDebugName(GLenum type) {
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switch (type) {
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case GL_VERTEX_SHADER:
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return "vertex";
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case GL_GEOMETRY_SHADER:
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return "geometry";
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case GL_FRAGMENT_SHADER:
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return "fragment";
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case GL_COMPUTE_SHADER:
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return "compute";
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}
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UNIMPLEMENTED();
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return "unknown";
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}
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} // Anonymous namespace
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GLuint LoadShader(std::string_view source, GLenum type) {
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const std::string_view debug_type = StageDebugName(type);
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const GLuint shader_id = glCreateShader(type);
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const GLchar* source_string = source.data();
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const GLint source_length = static_cast<GLint>(source.size());
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glShaderSource(shader_id, 1, &source_string, &source_length);
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LOG_DEBUG(Render_OpenGL, "Compiling {} shader...", debug_type);
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glCompileShader(shader_id);
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GLint result = GL_FALSE;
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GLint info_log_length;
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glGetShaderiv(shader_id, GL_COMPILE_STATUS, &result);
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glGetShaderiv(shader_id, GL_INFO_LOG_LENGTH, &info_log_length);
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if (info_log_length > 1) {
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std::string shader_error(info_log_length, ' ');
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glGetShaderInfoLog(shader_id, info_log_length, nullptr, &shader_error[0]);
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if (result == GL_TRUE) {
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LOG_DEBUG(Render_OpenGL, "{}", shader_error);
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} else {
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LOG_ERROR(Render_OpenGL, "Error compiling {} shader:\n{}", debug_type, shader_error);
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}
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}
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return shader_id;
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}
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} // namespace OpenGL::GLShader
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