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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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4
Userland/Libraries/LibGL/GL/gl.h
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@ -98,6 +98,7 @@ extern "C" {
#define GL_COLOR_MATERIAL 0x0B57
#define GL_FOG_START 0x0B63
#define GL_FOG_END 0x0B64
#define GL_STENCIL_CLEAR_VALUE 0x0B91
#define GL_MATRIX_MODE 0x0BA0
#define GL_NORMALIZE 0x0BA1
#define GL_VIEWPORT 0x0BA2
@ -605,9 +606,10 @@ GLAPI void glLightModelfv(GLenum pname, GLfloat const* params);
GLAPI void glLightModeli(GLenum pname, GLint param);
GLAPI void glStencilFunc(GLenum func, GLint ref, GLuint mask);
GLAPI void glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
GLAPI void glStencilMask(GLuint mask);
GLAPI void glStencilMaskSeparate(GLenum face, GLuint mask);
GLAPI void glStencilOp(GLenum sfail, GLenum dpfail, GLenum dppass);
GLAPI void glStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
GLAPI void glStencilMask(GLuint mask);
GLAPI void glNormal3f(GLfloat nx, GLfloat ny, GLfloat nz);
GLAPI void glNormal3fv(GLfloat const* v);
GLAPI void glNormalPointer(GLenum type, GLsizei stride, void const* pointer);