/*
* Mesa 3-D graphics library
- * Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
#ifndef _TNL_H
#include "main/glheader.h"
-struct gl_client_array;
struct gl_context;
struct gl_program;
+struct gl_buffer_object;
+struct gl_transform_feedback_object;
+struct dd_function_table;
/* These are the public-access functions exported from tnl. (A few
extern void
_tnl_InvalidateState( struct gl_context *ctx, GLuint new_state );
+extern void
+_tnl_init_driver_draw_function(struct dd_function_table *functions);
+
/* Functions to revive the tnl module after being unhooked from
* dispatch and/or driver callbacks.
*/
_tnl_need_projected_coords( struct gl_context *ctx, GLboolean flag );
+/**
+ * Vertex array information which is derived from gl_array_attributes
+ * and gl_vertex_buffer_binding information. Used by the TNL module and
+ * device drivers.
+ */
+struct tnl_vertex_array
+{
+ /** Vertex attribute array */
+ const struct gl_array_attributes *VertexAttrib;
+ /** Vertex buffer binding */
+ const struct gl_vertex_buffer_binding *BufferBinding;
+};
+
+
+extern const struct tnl_vertex_array*
+_tnl_bind_inputs( struct gl_context *ctx );
+
+
/* Control whether T&L does per-vertex fog
*/
extern void
struct _mesa_index_buffer;
void
-_tnl_draw_prims( struct gl_context *ctx,
- const struct gl_client_array *arrays[],
- const struct _mesa_prim *prim,
- GLuint nr_prims,
- const struct _mesa_index_buffer *ib,
- GLuint min_index,
- GLuint max_index);
-
-void
-_tnl_vbo_draw_prims( struct gl_context *ctx,
+_tnl_draw_prims(struct gl_context *ctx,
+ const struct tnl_vertex_array *arrays,
const struct _mesa_prim *prim,
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 );
+ GLuint num_instances,
+ GLuint base_instance);
-extern void
-_mesa_load_tracked_matrices(struct gl_context *ctx);
+void
+_tnl_draw(struct gl_context *ctx,
+ const struct _mesa_prim *prim, GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLboolean index_bounds_valid, GLuint min_index, GLuint max_index,
+ GLuint num_instances, GLuint base_instance,
+ struct gl_transform_feedback_object *tfb_vertcount, unsigned stream);
extern void
_tnl_RasterPos(struct gl_context *ctx, const GLfloat vObj[4]);
extern void
_tnl_validate_shine_tables( struct gl_context *ctx );
+
+
+/**
+ * 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 arrays array of vertex arrays for draw
+ * \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
+ */
+typedef void (*tnl_draw_func)(struct gl_context *ctx,
+ const struct tnl_vertex_array* arrays,
+ const struct _mesa_prim *prims,
+ GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLboolean index_bounds_valid,
+ GLuint min_index,
+ GLuint max_index,
+ GLuint num_instances,
+ GLuint base_instance);
+
+
+/* Utility function to cope with various constraints on tnl modules or
+ * hardware. This can be used to split an incoming set of arrays and
+ * primitives against the following constraints:
+ * - Maximum number of indices in index buffer.
+ * - Maximum number of vertices referenced by index buffer.
+ * - Maximum hardware vertex buffer size.
+ */
+struct split_limits
+{
+ GLuint max_verts;
+ GLuint max_indices;
+ GLuint max_vb_size; /* bytes */
+};
+
+void
+_tnl_split_prims(struct gl_context *ctx,
+ const struct tnl_vertex_array *arrays,
+ const struct _mesa_prim *prim,
+ GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLuint min_index,
+ GLuint max_index,
+ GLuint num_instances,
+ GLuint base_instance,
+ tnl_draw_func draw,
+ const struct split_limits *limits);
+
+
#endif
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