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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/SoftwareGLContext.h
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@ -70,6 +70,7 @@ public:
virtual void gl_tex_image_2d(GLenum target, GLint level, GLint internal_format, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* data) override;
virtual void gl_tex_parameter(GLenum target, GLenum pname, GLfloat param) override;
virtual void gl_tex_coord(GLfloat s, GLfloat t, GLfloat r, GLfloat q) override;
virtual void gl_tex_env(GLenum target, GLenum pname, GLfloat param) override;
virtual void gl_bind_texture(GLenum target, GLuint texture) override;
virtual void gl_active_texture(GLenum texture) override;
virtual void gl_get_floatv(GLenum pname, GLfloat* params) override;