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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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9
Userland/Libraries/LibGPU/Enums.h
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2024, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -21,6 +22,14 @@ enum class AlphaTestFunction {
Greater,
};
enum class BlendEquation {
Add,
Subtract,
ReverseSubtract,
Min,
Max,
};
enum class BlendFactor {
Zero,
One,

4
Userland/Libraries/LibGPU/RasterizerOptions.h
View file

@ -1,6 +1,6 @@
/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2022, Jelle Raaijmakers <jelle@gmta.nl>
* Copyright (c) 2022-2024, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -23,6 +23,8 @@ struct RasterizerOptions {
AlphaTestFunction alpha_test_func { AlphaTestFunction::Always };
float alpha_test_ref_value { 0 };
bool enable_blending { false };
BlendEquation blend_equation_rgb { BlendEquation::Add };
BlendEquation blend_equation_alpha { BlendEquation::Add };
BlendFactor blend_source_factor { BlendFactor::One };
BlendFactor blend_destination_factor { BlendFactor::One };
u32 color_mask { 0xffffffff };