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asarium
016c07dc3a
This adds a mechanism for running generic operations at specific points of the frame execution. This can be used by any part of the code an not just Lua since it simply executes std::functions. It also adds an "execution context" concept that specifies in which situation an operation should be executed. This is then used by the Lua Coroutines code for resuming coroutines at specific points instead of always when the awaited promise resolves.
80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
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#ifndef OPENGL_SHADER_PROGRAM_H
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#define OPENGL_SHADER_PROGRAM_H
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#pragma once
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#include "globalincs/pstypes.h"
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#include "gropenglshader.h"
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#include <glad/glad.h>
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namespace opengl {
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class ShaderProgram;
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class ShaderUniforms {
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struct uniform_bind
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{
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SCP_string name;
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int value;
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};
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ShaderProgram* _program;
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SCP_vector<uniform_bind> _uniforms;
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SCP_unordered_map<SCP_string, size_t> _uniform_lookup;
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SCP_unordered_map<SCP_string, GLint> _uniform_locations;
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size_t findUniform(const SCP_string &name);
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GLint findUniformLocation(const SCP_string& name);
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public:
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explicit ShaderUniforms(ShaderProgram* shaderProgram);
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void setTextureUniform(const SCP_string &name, const int texture_unit);
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};
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enum ShaderStage {
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STAGE_VERTEX,
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STAGE_GEOMETRY,
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STAGE_FRAGMENT
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};
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class ShaderProgram {
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GLuint _program_id;
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SCP_vector<GLuint> _compiled_shaders;
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SCP_unordered_map<opengl_vert_attrib::attrib_id, GLint> _attribute_locations;
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void freeCompiledShaders();
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public:
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explicit ShaderProgram(const SCP_string& program_name);
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~ShaderProgram();
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ShaderUniforms Uniforms;
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ShaderProgram(const ShaderProgram&) SCP_DELETED_FUNCTION;
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ShaderProgram& operator=(const ShaderProgram&) SCP_DELETED_FUNCTION;
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ShaderProgram(ShaderProgram&& other) noexcept;
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ShaderProgram& operator=(ShaderProgram&& other) noexcept;
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void use();
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void addShaderCode(ShaderStage stage, const SCP_string& name, const SCP_vector<SCP_string>& codeParts);
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void linkProgram();
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void initAttribute(const SCP_string& name, opengl_vert_attrib::attrib_id attr_id, const vec4& default_value);
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GLint getAttributeLocation(opengl_vert_attrib::attrib_id attribute);
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GLuint getShaderHandle();
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};
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}
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#endif // OPENGL_SHADER_PROGRAM_H
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