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LibGL+LibSoftGPU: Implement the stencil buffer

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This implements an 8-bit front stencil buffer. Stencil operations are
SIMD optimized. LibGL changes include:

* New `glStencilMask` and `glStencilMaskSeparate` functions
* New context parameter `GL_STENCIL_CLEAR_VALUE`
This commit is contained in:
Jelle Raaijmakers 2022-01-16 22:48:46 +01:00 • committed by Andreas Kling
parent 6386671944
commit 11c807ebd1
13 changed files with 430 additions and 77 deletions
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1
Userland/Libraries/LibGL/GLContext.h
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@ -97,6 +97,7 @@ public:
virtual void gl_pixel_storei(GLenum pname, GLint param) = 0;
virtual void gl_scissor(GLint x, GLint y, GLsizei width, GLsizei height) = 0;
virtual void gl_stencil_func_separate(GLenum face, GLenum func, GLint ref, GLuint mask) = 0;
virtual void gl_stencil_mask_separate(GLenum face, GLuint mask) = 0;
virtual void gl_stencil_op_separate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) = 0;
virtual void gl_normal(GLfloat nx, GLfloat ny, GLfloat nz) = 0;
virtual void gl_normal_pointer(GLenum type, GLsizei stride, void const* pointer) = 0;