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Framebuffer object is allocated using OpenGL's API and is not platform specific which means it could be used on both macOS and Linux unlike EGL specific PBuffer.
101 lines
2.1 KiB
C++
101 lines
2.1 KiB
C++
/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <GL/gl.h>
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#include <LibGfx/Forward.h>
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namespace AccelGfx::GL {
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enum class ShaderType {
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Vertex,
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Fragment,
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};
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struct Shader {
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GLuint id;
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};
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struct Program {
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GLuint id;
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};
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struct VertexAttribute {
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GLint id;
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};
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struct Uniform {
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GLint id;
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};
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struct Texture {
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GLuint id;
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};
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struct Buffer {
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GLuint id;
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};
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struct VertexArray {
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GLuint id;
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};
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struct Framebuffer {
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GLuint fbo_id;
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GLuint texture_id;
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};
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void set_viewport(Gfx::IntRect);
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void enable_blending();
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void read_pixels(Gfx::IntRect, Gfx::Bitmap&);
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Shader create_shader(ShaderType type, char const* source);
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Program create_program(Shader const& vertex_shader, Shader const& fragment_shader);
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void use_program(Program const&);
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VertexAttribute get_attribute_location(Program const&, char const* name);
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Uniform get_uniform_location(Program const&, char const* name);
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void delete_program(Program const&);
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Texture create_texture();
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void bind_texture(Texture const&);
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void upload_texture_data(Texture const& texture, Gfx::Bitmap const& bitmap);
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void delete_texture(Texture const&);
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void set_uniform(Uniform const& uniform, float, float, float, float);
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void set_vertex_attribute(VertexAttribute const& attribute, u32 offset, int number_of_components);
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enum class ScalingMode {
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Nearest,
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Linear,
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};
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void set_texture_scale_mode(ScalingMode);
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void clear_color(Gfx::Color const&);
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enum class DrawPrimitive {
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Triangles,
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TriangleFan,
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};
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void draw_arrays(DrawPrimitive, size_t count);
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Buffer create_buffer();
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void bind_buffer(Buffer const&);
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void upload_to_buffer(Buffer const&, Span<float> values);
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void delete_buffer(Buffer const&);
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VertexArray create_vertex_array();
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void bind_vertex_array(VertexArray const&);
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void delete_vertex_array(VertexArray const&);
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Framebuffer create_framebuffer(Gfx::IntSize);
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void bind_framebuffer(Framebuffer const& framebuffer);
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void delete_framebuffer(Framebuffer const& framebuffer);
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}
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