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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
/* Author:
* Brian Paul
* Keith Whitwell
*/
#include "pipe/p_defines.h"
#include "pipe/p_context.h"
#include "util/u_inlines.h"
#include "cell_context.h"
#include "cell_draw_arrays.h"
#include "cell_state.h"
#include "cell_flush.h"
#include "cell_texture.h"
#include "draw/draw_context.h"
/**
* Draw vertex arrays, with optional indexing.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*
* XXX should the element buffer be specified/bound with a separate function?
*/
static void
cell_draw_range_elements(struct pipe_context *pipe,
struct pipe_resource *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned mode, unsigned start, unsigned count)
{
struct cell_context *cell = cell_context(pipe);
struct draw_context *draw = cell->draw;
unsigned i;
if (cell->dirty)
cell_update_derived( cell );
#if 0
cell_map_surfaces(cell);
#endif
/*
* Map vertex buffers
*/
for (i = 0; i < cell->num_vertex_buffers; i++) {
void *buf = cell_resource(cell->vertex_buffer[i].buffer)->data;
draw_set_mapped_vertex_buffer(draw, i, buf);
}
/* Map index buffer, if present */
if (indexBuffer) {
void *mapped_indexes = cell_resource(indexBuffer)->data;
draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/* draw! */
draw_arrays(draw, mode, start, count);
/*
* unmap vertex/index buffers - will cause draw module to flush
*/
for (i = 0; i < cell->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (indexBuffer) {
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/*
* TODO: Flush only when a user vertex/index buffer is present
* (or even better, modify draw module to do this
* internally when this condition is seen?)
*/
draw_flush(draw);
}
static void
cell_draw_elements(struct pipe_context *pipe,
struct pipe_resource *indexBuffer,
unsigned indexSize,
unsigned mode, unsigned start, unsigned count)
{
cell_draw_range_elements( pipe, indexBuffer,
indexSize,
0, 0xffffffff,
mode, start, count );
}
static void
cell_draw_arrays(struct pipe_context *pipe, unsigned mode,
unsigned start, unsigned count)
{
cell_draw_elements(pipe, NULL, 0, mode, start, count);
}
void
cell_init_draw_functions(struct cell_context *cell)
{
cell->pipe.draw_arrays = cell_draw_arrays;
cell->pipe.draw_elements = cell_draw_elements;
cell->pipe.draw_range_elements = cell_draw_range_elements;
}
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