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#include "draw/draw_context.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "nv20_context.h"
#include "nv20_state.h"
#include "nouveau/nouveau_channel.h"
#include "nouveau/nouveau_pushbuf.h"
boolean nv20_draw_elements( struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned prim, unsigned start, unsigned count)
{
struct nv20_context *nv20 = nv20_context( pipe );
struct draw_context *draw = nv20->draw;
unsigned i;
nv20_emit_hw_state(nv20);
/*
* Map vertex buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (nv20->vtxbuf[i].buffer) {
void *buf
= pipe->winsys->buffer_map(pipe->winsys,
nv20->vtxbuf[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, i, buf);
}
}
/* Map index buffer, if present */
if (indexBuffer) {
void *mapped_indexes
= pipe->winsys->buffer_map(pipe->winsys, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
draw_set_mapped_constant_buffer(draw,
nv20->constbuf[PIPE_SHADER_VERTEX],
nv20->constbuf_nr[PIPE_SHADER_VERTEX]);
/* draw! */
draw_arrays(nv20->draw, prim, start, count);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (nv20->vtxbuf[i].buffer) {
pipe->winsys->buffer_unmap(pipe->winsys, nv20->vtxbuf[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (indexBuffer) {
pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
draw_flush(nv20->draw);
return TRUE;
}
boolean nv20_draw_arrays( struct pipe_context *pipe,
unsigned prim, unsigned start, unsigned count)
{
return nv20_draw_elements(pipe, NULL, 0, prim, start, count);
}
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