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LibGL: Implement glTexEnvf

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This controls how fetched texels are combined with the color that was
produced by a preceding texture unit or with the vertex color if it is
the first texture unit.

Currently only a small subset of possible combine modes is implemented
as required by glquake.
This commit is contained in:
Stephan Unverwerth 2021-08-21 13:59:13 +02:00 • committed by Andreas Kling
parent 19a08ff187
commit b54573739c
7 changed files with 66 additions and 7 deletions
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Userland/Libraries/LibGL/GL/gl.h
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@ -358,6 +358,7 @@ GLAPI void glTexCoord2f(GLfloat s, GLfloat t);
GLAPI void glTexCoord4fv(const GLfloat* v);
GLAPI void glTexParameteri(GLenum target, GLenum pname, GLint param);
GLAPI void glTexParameterf(GLenum target, GLenum pname, GLfloat param);
GLAPI void glTexEnvf(GLenum target, GLenum pname, GLfloat param);
GLAPI void glBindTexture(GLenum target, GLuint texture);
GLAPI void glActiveTexture(GLenum texture);
GLAPI void glGetFloatv(GLenum pname, GLfloat* params);