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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 "svga_cmd.h"
#include "util/u_inlines.h"
#include "util/u_prim.h"
#include "util/u_time.h"
#include "indices/u_indices.h"
#include "svga_hw_reg.h"
#include "svga_context.h"
#include "svga_screen.h"
#include "svga_draw.h"
#include "svga_state.h"
#include "svga_swtnl.h"
#include "svga_debug.h"
static enum pipe_error
retry_draw_range_elements( struct svga_context *svga,
struct pipe_resource *index_buffer,
unsigned index_size,
int index_bias,
unsigned min_index,
unsigned max_index,
unsigned prim,
unsigned start,
unsigned count,
boolean do_retry )
{
enum pipe_error ret = 0;
svga_hwtnl_set_unfilled( svga->hwtnl,
svga->curr.rast->hw_unfilled );
svga_hwtnl_set_flatshade( svga->hwtnl,
svga->curr.rast->templ.flatshade,
svga->curr.rast->templ.flatshade_first );
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret)
goto retry;
ret = svga_hwtnl_draw_range_elements( svga->hwtnl,
index_buffer, index_size, index_bias,
min_index, max_index,
prim, start, count );
if (ret)
goto retry;
return PIPE_OK;
retry:
svga_context_flush( svga, NULL );
if (do_retry)
{
return retry_draw_range_elements( svga,
index_buffer, index_size, index_bias,
min_index, max_index,
prim, start, count,
FALSE );
}
return ret;
}
static enum pipe_error
retry_draw_arrays( struct svga_context *svga,
unsigned prim,
unsigned start,
unsigned count,
boolean do_retry )
{
enum pipe_error ret;
svga_hwtnl_set_unfilled( svga->hwtnl,
svga->curr.rast->hw_unfilled );
svga_hwtnl_set_flatshade( svga->hwtnl,
svga->curr.rast->templ.flatshade,
svga->curr.rast->templ.flatshade_first );
ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
if (ret)
goto retry;
ret = svga_hwtnl_draw_arrays( svga->hwtnl, prim,
start, count );
if (ret)
goto retry;
return 0;
retry:
if (ret == PIPE_ERROR_OUT_OF_MEMORY && do_retry)
{
svga_context_flush( svga, NULL );
return retry_draw_arrays( svga,
prim,
start,
count,
FALSE );
}
return ret;
}
static void
svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct svga_context *svga = svga_context( pipe );
unsigned reduced_prim = u_reduced_prim( info->mode );
unsigned count = info->count;
enum pipe_error ret = 0;
if (!u_trim_pipe_prim( info->mode, &count ))
return;
if (svga->state.sw.need_swtnl != svga->prev_draw_swtnl) {
/* We're switching between SW and HW drawing. Do a flush to avoid
* mixing HW and SW rendering with the same vertex buffer.
*/
pipe->flush(pipe, NULL);
svga->prev_draw_swtnl = svga->state.sw.need_swtnl;
}
/*
* Mark currently bound target surfaces as dirty
* doesn't really matter if it is done before drawing.
*
* TODO If we ever normaly return something other then
* true we should not mark it as dirty then.
*/
svga_mark_surfaces_dirty(svga_context(pipe));
if (svga->curr.reduced_prim != reduced_prim) {
svga->curr.reduced_prim = reduced_prim;
svga->dirty |= SVGA_NEW_REDUCED_PRIMITIVE;
}
svga_update_state_retry( svga, SVGA_STATE_NEED_SWTNL );
#ifdef DEBUG
if (svga->curr.vs->base.id == svga->debug.disable_shader ||
svga->curr.fs->base.id == svga->debug.disable_shader)
return;
#endif
if (svga->state.sw.need_swtnl) {
ret = svga_swtnl_draw_vbo( svga, info );
}
else {
if (info->indexed && svga->curr.ib.buffer) {
unsigned offset;
assert(svga->curr.ib.offset % svga->curr.ib.index_size == 0);
offset = svga->curr.ib.offset / svga->curr.ib.index_size;
ret = retry_draw_range_elements( svga,
svga->curr.ib.buffer,
svga->curr.ib.index_size,
info->index_bias,
info->min_index,
info->max_index,
info->mode,
info->start + offset,
info->count,
TRUE );
}
else {
ret = retry_draw_arrays( svga,
info->mode,
info->start,
info->count,
TRUE );
}
}
if (SVGA_DEBUG & DEBUG_FLUSH) {
svga_hwtnl_flush_retry( svga );
svga_context_flush(svga, NULL);
}
}
void svga_init_draw_functions( struct svga_context *svga )
{
svga->pipe.draw_vbo = svga_draw_vbo;
}
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