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LibGL: Implement glGetError and underlying function

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This implements `glGetError` and correctly sets the state machine's
error macro (similar to LibC `errno`) when an invalid operation is
performed. This is reset on completion of a successful operation.
This commit is contained in:
Jesse Buhagiar 2021-04-23 23:48:28 +10:00 • committed by Andreas Kling
parent 4807d32139
commit e537e2690a
5 changed files with 58 additions and 4 deletions
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9
Userland/Libraries/LibGL/GL/gl.h
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@ -37,6 +37,14 @@ extern "C" {
#define GL_RENDERER 0x1F01
#define GL_VERSION 0x1F02
// Error codes
#define GL_NO_ERROR 0
#define GL_INVALID_ENUM 0x500
#define GL_INVALID_VALUE 0x501
#define GL_INVALID_OPERATION 0x502
#define GL_INVALID_FRAMEBUFFER_OPERATION 0x503
#define GL_OUT_OF_MEMORY 0x504
//
// OpenGL typedefs
//
@ -66,6 +74,7 @@ GLAPI void glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf al
GLAPI void glColor3f(GLfloat r, GLfloat g, GLfloat b);
GLAPI void glEnd();
GLAPI void glFrustum(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble nearVal, GLdouble farVal);
GLAPI GLenum glGetError();
GLAPI GLubyte* glGetString(GLenum name);
GLAPI void glLoadIdentity();
GLAPI void glMatrixMode(GLenum mode);