+
+ /**
+ * \name Draw functions.
+ */
+ /*@{*/
+ /**
+ * For indirect array drawing:
+ *
+ * typedef struct {
+ * GLuint count;
+ * GLuint primCount;
+ * GLuint first;
+ * GLuint baseInstance; // in GL 4.2 and later, must be zero otherwise
+ * } DrawArraysIndirectCommand;
+ *
+ * For indirect indexed drawing:
+ *
+ * typedef struct {
+ * GLuint count;
+ * GLuint primCount;
+ * GLuint firstIndex;
+ * GLint baseVertex;
+ * GLuint baseInstance; // in GL 4.2 and later, must be zero otherwise
+ * } DrawElementsIndirectCommand;
+ */
+
+ /**
+ * Draw a number of primitives.
+ * \param prims array [nr_prims] describing what to draw (prim type,
+ * vertex count, first index, instance count, etc).
+ * \param ib index buffer for indexed drawing, NULL for array drawing
+ * \param index_bounds_valid are min_index and max_index valid?
+ * \param min_index lowest vertex index used
+ * \param max_index highest vertex index used
+ * \param tfb_vertcount if non-null, indicates which transform feedback
+ * object has the vertex count.
+ * \param tfb_stream If called via DrawTransformFeedbackStream, specifies
+ * the vertex stream buffer from which to get the vertex
+ * count.
+ * \param indirect If any prims are indirect, this specifies the buffer
+ * to find the "DrawArrays/ElementsIndirectCommand" data.
+ * This may be deprecated in the future
+ */
+ void (*Draw)(struct gl_context *ctx,
+ const struct _mesa_prim *prims, GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLboolean index_bounds_valid,
+ GLuint min_index, GLuint max_index,
+ struct gl_transform_feedback_object *tfb_vertcount,
+ unsigned tfb_stream, struct gl_buffer_object *indirect);
+
+
+ /**
+ * Draw a primitive, getting the vertex count, instance count, start
+ * vertex, etc. from a buffer object.
+ * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
+ * \param indirect_data buffer to get "DrawArrays/ElementsIndirectCommand"
+ * data
+ * \param indirect_offset offset of first primitive in indrect_data buffer
+ * \param draw_count number of primitives to draw
+ * \param stride stride, in bytes, between
+ * "DrawArrays/ElementsIndirectCommand" objects
+ * \param indirect_draw_count_buffer if non-NULL specifies a buffer to get
+ * the real draw_count value. Used for
+ * GL_ARB_indirect_parameters.
+ * \param indirect_draw_count_offset offset to the draw_count value in
+ * indirect_draw_count_buffer
+ * \param ib index buffer for indexed drawing, NULL otherwise.
+ */
+ void (*DrawIndirect)(struct gl_context *ctx, GLuint mode,
+ struct gl_buffer_object *indirect_data,
+ GLsizeiptr indirect_offset, unsigned draw_count,
+ unsigned stride,
+ struct gl_buffer_object *indirect_draw_count_buffer,
+ GLsizeiptr indirect_draw_count_offset,
+ const struct _mesa_index_buffer *ib);
+ /*@}*/
+
+