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/**********************************************************
* Copyright 2008-2009 VMware, Inc. 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL 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.
*
**********************************************************/
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "util/u_inlines.h"
#include "pipe/p_state.h"
#include "svga_context.h"
#include "svga_swtnl.h"
#include "svga_state.h"
#include "svga_swtnl_private.h"
enum pipe_error
svga_swtnl_draw_range_elements(struct svga_context *svga,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned prim, unsigned start, unsigned count)
{
struct draw_context *draw = svga->swtnl.draw;
unsigned i;
const void *map;
enum pipe_error ret;
assert(!svga->dirty);
assert(svga->state.sw.need_swtnl);
assert(draw);
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
if (ret) {
svga_context_flush(svga, NULL);
ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW);
svga->swtnl.new_vbuf = TRUE;
assert(ret == PIPE_OK);
}
/*
* Map vertex buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
map = pipe_buffer_map(svga->pipe.screen,
svga->curr.vb[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, i, map);
}
/* Map index buffer, if present */
if (indexBuffer) {
map = pipe_buffer_map(svga->pipe.screen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(draw,
indexSize,
min_index,
max_index,
map);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
map = pipe_buffer_map(svga->pipe.screen,
svga->curr.cb[PIPE_SHADER_VERTEX],
PIPE_BUFFER_USAGE_CPU_READ);
assert(map);
draw_set_mapped_constant_buffer(
draw, PIPE_SHADER_VERTEX, 0,
map,
svga->curr.cb[PIPE_SHADER_VERTEX]->size);
}
draw_arrays(svga->swtnl.draw, prim, start, count);
draw_flush(svga->swtnl.draw);
/* Ensure the draw module didn't touch this */
assert(i == svga->curr.num_vertex_buffers);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
pipe_buffer_unmap(svga->pipe.screen, svga->curr.vb[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
if (indexBuffer) {
pipe_buffer_unmap(svga->pipe.screen, indexBuffer);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
if (svga->curr.cb[PIPE_SHADER_VERTEX]) {
pipe_buffer_unmap(svga->pipe.screen,
svga->curr.cb[PIPE_SHADER_VERTEX]);
}
return ret;
}
boolean svga_init_swtnl( struct svga_context *svga )
{
svga->swtnl.backend = svga_vbuf_render_create(svga);
if(!svga->swtnl.backend)
goto fail;
/*
* Create drawing context and plug our rendering stage into it.
*/
svga->swtnl.draw = draw_create();
if (svga->swtnl.draw == NULL)
goto fail;
draw_set_rasterize_stage(svga->swtnl.draw,
draw_vbuf_stage( svga->swtnl.draw, svga->swtnl.backend ));
draw_set_render(svga->swtnl.draw, svga->swtnl.backend);
draw_install_aaline_stage(svga->swtnl.draw, &svga->pipe);
draw_install_aapoint_stage(svga->swtnl.draw, &svga->pipe);
draw_install_pstipple_stage(svga->swtnl.draw, &svga->pipe);
draw_set_driver_clipping(svga->swtnl.draw, debug_get_bool_option("SVGA_SWTNL_FSE", FALSE));
return TRUE;
fail:
if (svga->swtnl.backend)
svga->swtnl.backend->destroy( svga->swtnl.backend );
if (svga->swtnl.draw)
draw_destroy( svga->swtnl.draw );
return FALSE;
}
void svga_destroy_swtnl( struct svga_context *svga )
{
draw_destroy( svga->swtnl.draw );
}
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