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LibGL+LibGPU+LibSoftGPU: Implement blend equations

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This implements support for `glBlendEquation` and
`glBlendEquationSeparate`. These functions modify the calculation of the
resulting color in blending mode.
This commit is contained in:
Jelle Raaijmakers 2024-02-15 22:55:28 +01:00
parent 55668c3e48
commit aa3a6767f6
10 changed files with 202 additions and 30 deletions
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7
Userland/Libraries/LibGL/GLContext.h
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@ -1,7 +1,7 @@
/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2021-2022, Jesse Buhagiar <jooster669@gmail.com>
* Copyright (c) 2022-2023, Jelle Raaijmakers <jelle@gmta.nl>
* Copyright (c) 2022-2024, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -148,6 +148,7 @@ public:
GLboolean gl_is_list(GLuint list);
void gl_flush();
void gl_finish();
void gl_blend_equation_separate(GLenum rgb_mode, GLenum alpha_mode);
void gl_blend_func(GLenum src_factor, GLenum dst_factor);
void gl_shade_model(GLenum mode);
void gl_alpha_func(GLenum func, GLclampf ref);
@ -336,6 +337,9 @@ private:
GLenum m_blend_source_factor = GL_ONE;
GLenum m_blend_destination_factor = GL_ZERO;
GLenum m_blend_equation_rgb = GL_FUNC_ADD;
GLenum m_blend_equation_alpha = GL_FUNC_ADD;
bool m_alpha_test_enabled = false;
GLenum m_alpha_test_func = GL_ALWAYS;
GLclampf m_alpha_test_ref_value = 0;
@ -469,6 +473,7 @@ private:
decltype(&GLContext::gl_cull_face),
decltype(&GLContext::gl_call_list),
decltype(&GLContext::gl_call_lists),
decltype(&GLContext::gl_blend_equation_separate),
decltype(&GLContext::gl_blend_func),
decltype(&GLContext::gl_shade_model),
decltype(&GLContext::gl_alpha_func),