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LibGL: Implement glIsTexture

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Required by Xash3D for the r_showtextures command, where it shows every
allocated texture on screen.

Description of glIsTexture from the spec:
"glIsTexture returns GL_TRUE if texture is currently the name of a
texture. If texture is zero, or is a non-zero value that is not
currently the name of a texture, or if an error occurs, glIsTexture
returns GL_FALSE.

A name returned by glGenTextures, but not yet associated with a texture
by calling glBindTexture, is not the name of a texture."

https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsTexture.xhtml
This commit is contained in:
Luke Wilde 2022-01-13 06:02:33 +00:00 • committed by Andreas Kling
parent adfb0846d2
commit 1fc611877f
5 changed files with 22 additions and 0 deletions
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Userland/Libraries/LibGL/GL/gl.h
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@ -552,6 +552,7 @@ GLAPI void glTexParameterf(GLenum target, GLenum pname, GLfloat param);
GLAPI void glTexEnvf(GLenum target, GLenum pname, GLfloat param);
GLAPI void glTexEnvi(GLenum target, GLenum pname, GLint param);
GLAPI void glBindTexture(GLenum target, GLuint texture);
GLAPI GLboolean glIsTexture(GLuint texture);
GLAPI void glActiveTexture(GLenum texture);
GLAPI void glGetBooleanv(GLenum pname, GLboolean* data);
GLAPI void glGetDoublev(GLenum pname, GLdouble* params);