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85 lines
4 KiB
C++
85 lines
4 KiB
C++
/*
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* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
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* Copyright (c) 2022, Jelle Raaijmakers <jelle@gmta.nl>
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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/RefPtr.h>
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#include <AK/Vector.h>
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#include <LibGL/Tex/Texture2D.h>
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#include <LibGfx/Matrix4x4.h>
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namespace GL {
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class TextureUnit {
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public:
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TextureUnit() = default;
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RefPtr<Texture2D> texture_2d_target_texture() const { return m_texture_2d_target_texture; }
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void set_texture_2d_target_texture(RefPtr<Texture2D> const& texture) { m_texture_2d_target_texture = texture; }
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void set_alpha_combinator(GLenum combinator) { m_alpha_combinator = combinator; }
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GLenum alpha_combinator() const { return m_alpha_combinator; }
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void set_alpha_operand(size_t index, GLenum operand) { m_alpha_operand[index] = operand; }
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GLenum alpha_operand(size_t index) const { return m_alpha_operand[index]; }
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void set_alpha_scale(float scale) { m_alpha_scale = scale; }
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float alpha_scale() const { return m_alpha_scale; }
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void set_alpha_source(size_t index, GLenum source) { m_alpha_source[index] = source; }
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GLenum alpha_source(size_t index) const { return m_alpha_source[index]; }
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void set_color(FloatVector4 color) { m_color = color; }
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FloatVector4 color() const { return m_color; }
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void set_env_mode(GLenum mode) { m_env_mode = mode; }
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GLenum env_mode() const { return m_env_mode; }
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void set_level_of_detail_bias(float bias) { m_level_of_detail_bias = bias; }
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float level_of_detail_bias() const { return m_level_of_detail_bias; }
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void set_rgb_combinator(GLenum combinator) { m_rgb_combinator = combinator; }
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GLenum rgb_combinator() const { return m_rgb_combinator; }
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void set_rgb_operand(size_t index, GLenum operand) { m_rgb_operand[index] = operand; }
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GLenum rgb_operand(size_t index) const { return m_rgb_operand[index]; }
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void set_rgb_scale(float scale) { m_rgb_scale = scale; }
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float rgb_scale() const { return m_rgb_scale; }
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void set_rgb_source(size_t index, GLenum source) { m_rgb_source[index] = source; }
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GLenum rgb_source(size_t index) const { return m_rgb_source[index]; }
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bool texture_1d_enabled() const { return m_texture_1d_enabled; };
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void set_texture_1d_enabled(bool texture_1d_enabled) { m_texture_1d_enabled = texture_1d_enabled; }
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bool texture_2d_enabled() const { return m_texture_2d_enabled; };
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void set_texture_2d_enabled(bool texture_2d_enabled) { m_texture_2d_enabled = texture_2d_enabled; }
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bool texture_3d_enabled() const { return m_texture_3d_enabled; };
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void set_texture_3d_enabled(bool texture_3d_enabled) { m_texture_3d_enabled = texture_3d_enabled; }
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bool texture_cube_map_enabled() const { return m_texture_cube_map_enabled; };
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void set_texture_cube_map_enabled(bool texture_cube_map_enabled) { m_texture_cube_map_enabled = texture_cube_map_enabled; }
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FloatMatrix4x4& texture_matrix() { return m_texture_matrix_stack.last(); }
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Vector<FloatMatrix4x4>& texture_matrix_stack() { return m_texture_matrix_stack; }
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private:
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GLenum m_alpha_combinator { GL_MODULATE };
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Array<GLenum, 3> m_alpha_operand { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA };
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float m_alpha_scale { 1.f };
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Array<GLenum, 3> m_alpha_source { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT };
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FloatVector4 m_color { 0.f, 0.f, 0.f, 0.f };
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GLenum m_env_mode { GL_MODULATE };
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float m_level_of_detail_bias { 0.f };
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GLenum m_rgb_combinator { GL_MODULATE };
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Array<GLenum, 3> m_rgb_operand { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA };
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float m_rgb_scale { 1.f };
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Array<GLenum, 3> m_rgb_source { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT };
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// Bound textures
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RefPtr<Texture2D> m_texture_2d_target_texture {};
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// Texturing state per unit, in increasing priority:
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bool m_texture_1d_enabled { false };
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bool m_texture_2d_enabled { false };
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bool m_texture_3d_enabled { false };
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bool m_texture_cube_map_enabled { false };
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// Matrix stack for this unit
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Vector<FloatMatrix4x4> m_texture_matrix_stack { FloatMatrix4x4::identity() };
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};
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}
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