src/mesa/drivers/dri/i965/intel_buffer_objects.h

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  27
  28 #ifndef INTEL_BUFFEROBJ_H
  29 #define INTEL_BUFFEROBJ_H
  30
  31 #include "mtypes.h"
  32
  33 struct intel_context;
  34 struct gl_buffer_object;
  35
  36
  37 /**
  38  * Intel vertex/pixel buffer object, derived from Mesa's gl_buffer_object.
  39  */
  40 struct intel_buffer_object {
  41    struct gl_buffer_object Base;
  42    struct buffer *buffer;   /* the low-level buffer manager's buffer handle */
  43 };
  44
  45
  46 /* Get the bm buffer associated with a GL bufferobject:
  47  */
  48 struct buffer *intel_bufferobj_buffer( const struct intel_buffer_object *obj );
  49
  50 /* Hook the bufferobject implementation into mesa:
  51  */
  52 void intel_bufferobj_init( struct intel_context *intel );
  53
  54
  55
  56 /* Are the obj->Name tests necessary?  Unfortunately yes, mesa
  57  * allocates a couple of gl_buffer_object structs statically, and
  58  * the Name == 0 test is the only way to identify them and avoid
  59  * casting them erroneously to our structs.
  60  */
  61 static inline struct intel_buffer_object *
  62 intel_buffer_object( struct gl_buffer_object *obj )
  63 {
  64    if (obj->Name)
  65       return (struct intel_buffer_object *)obj;
  66    else
  67       return NULL;
  68 }
  69
  70 #endif