context.h File Reference

#include "glapi/glapi.h"
#include "imports.h"
#include "mtypes.h"

Go to the source code of this file.

Defines
#define	NEED_SECONDARY_COLOR(CTX)
#define	RGBA_LOGICOP_ENABLED(CTX)
Macros for flushing buffered rendering commands before state changes,
checking if inside glBegin/glEnd, etc.
#define	FLUSH_VERTICES(ctx, newstate)
#define	FLUSH_CURRENT(ctx, newstate)
#define	ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval)
#define	ASSERT_OUTSIDE_BEGIN_END(ctx)
#define	ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx)
#define	ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval)
Functions
void	_mesa_notifySwapBuffers (__GLcontext *gc)
struct _glapi_table *	_mesa_get_dispatch (GLcontext *ctx)
Visual-related functions
GLvisual *	_mesa_create_visual (GLboolean rgbFlag, GLboolean dbFlag, GLboolean stereoFlag, GLint redBits, GLint greenBits, GLint blueBits, GLint alphaBits, GLint indexBits, GLint depthBits, GLint stencilBits, GLint accumRedBits, GLint accumGreenBits, GLint accumBlueBits, GLint accumAlphaBits, GLint numSamples)
GLboolean	_mesa_initialize_visual (GLvisual *v, GLboolean rgbFlag, GLboolean dbFlag, GLboolean stereoFlag, GLint redBits, GLint greenBits, GLint blueBits, GLint alphaBits, GLint indexBits, GLint depthBits, GLint stencilBits, GLint accumRedBits, GLint accumGreenBits, GLint accumBlueBits, GLint accumAlphaBits, GLint numSamples)
void	_mesa_destroy_visual (GLvisual *vis)
Context-related functions
GLcontext *	_mesa_create_context (const GLvisual *visual, GLcontext *share_list, const struct dd_function_table *driverFunctions, void *driverContext)
GLboolean	_mesa_initialize_context (GLcontext *ctx, const GLvisual *visual, GLcontext *share_list, const struct dd_function_table *driverFunctions, void *driverContext)
void	_mesa_initialize_context_extra (GLcontext *ctx)
void	_mesa_free_context_data (GLcontext *ctx)
void	_mesa_destroy_context (GLcontext *ctx)
void	_mesa_copy_context (const GLcontext *src, GLcontext *dst, GLuint mask)
void	_mesa_make_current (GLcontext *ctx, GLframebuffer *drawBuffer, GLframebuffer *readBuffer)
GLboolean	_mesa_share_state (GLcontext *ctx, GLcontext *ctxToShare)
GLcontext *	_mesa_get_current_context (void)
Miscellaneous
void	_mesa_record_error (GLcontext *ctx, GLenum error)
void GLAPIENTRY	_mesa_Finish (void)
void GLAPIENTRY	_mesa_Flush (void)

---

Detailed Description

Mesa context and visual-related functions.

There are three large Mesa data types/classes which are meant to be used by device drivers:

• GLcontext: this contains the Mesa rendering state
• GLvisual: this describes the color buffer (RGB vs. ci), whether or not there's a depth buffer, stencil buffer, etc.
• GLframebuffer: contains pointers to the depth buffer, stencil buffer, accum buffer and alpha buffers.

These types should be encapsulated by corresponding device driver data types. See xmesa.h and xmesaP.h for an example.

In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes which the device driver must derive from.

The following functions create and destroy these data types.

Definition in file context.h.