/**************************************************************************
*
* 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 "pipe/internal/p_winsys_screen.h"
#include "pipe/p_inlines.h"
#include "util/u_prim.h"
#include "sp_context.h"
#include "sp_query.h"
#include "sp_state.h"
#include "draw/draw_context.h"
static void
softpipe_map_constant_buffers(struct softpipe_context *sp)
{
struct pipe_winsys *ws = sp->pipe.winsys;
uint i;
for (i = 0; i < PIPE_SHADER_TYPES; i++) {
uint j;
for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
if (sp->constants[i][j] && sp->constants[i][j]->size) {
sp->mapped_constants[i][j] = ws->buffer_map(ws,
sp->constants[i][j],
PIPE_BUFFER_USAGE_CPU_READ);
}
}
}
for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
if (sp->constants[PIPE_SHADER_VERTEX][i]) {
draw_set_mapped_constant_buffer(sp->draw,
PIPE_SHADER_VERTEX,
i,
sp->mapped_constants[PIPE_SHADER_VERTEX][i],
sp->constants[PIPE_SHADER_VERTEX][i]->size);
}
if (sp->constants[PIPE_SHADER_GEOMETRY][i]) {
draw_set_mapped_constant_buffer(sp->draw,
PIPE_SHADER_GEOMETRY,
i,
sp->mapped_constants[PIPE_SHADER_GEOMETRY][i],
sp->constants[PIPE_SHADER_GEOMETRY][i]->size);
}
}
}
static void
softpipe_unmap_constant_buffers(struct softpipe_context *sp)
{
struct pipe_winsys *ws = sp->pipe.winsys;
uint i;
/* really need to flush all prims since the vert/frag shaders const buffers
* are going away now.
*/
draw_flush(sp->draw);
for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
draw_set_mapped_constant_buffer(sp->draw,
PIPE_SHADER_VERTEX,
i,
NULL,
0);
draw_set_mapped_constant_buffer(sp->draw,
PIPE_SHADER_GEOMETRY,
i,
NULL,
0);
}
for (i = 0; i < PIPE_SHADER_TYPES; i++) {
uint j;
for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
if (sp->constants[i][j] && sp->constants[i][j]->size) {
ws->buffer_unmap(ws, sp->constants[i][j]);
}
sp->mapped_constants[i][j] = NULL;
}
}
}
/**
* Draw vertex arrays, with optional indexing.
* Basically, map the vertex buffers (and drawing surfaces), then hand off
* the drawing to the 'draw' module.
*/
static void
softpipe_draw_range_elements_instanced(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned maxIndex,
unsigned mode,
unsigned start,
unsigned count,
unsigned startInstance,
unsigned instanceCount);
void
softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode,
unsigned start, unsigned count)
{
softpipe_draw_range_elements_instanced(pipe,
NULL,
0,
0,
0xffffffff,
mode,
start,
count,
0,
1);
}
void
softpipe_draw_range_elements(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned min_index,
unsigned max_index,
unsigned mode, unsigned start, unsigned count)
{
softpipe_draw_range_elements_instanced(pipe,
indexBuffer,
indexSize,
min_index,
max_index,
mode,
start,
count,
0,
1);
}
void
softpipe_draw_elements(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned mode, unsigned start, unsigned count)
{
softpipe_draw_range_elements_instanced(pipe,
indexBuffer,
indexSize,
0,
0xffffffff,
mode,
start,
count,
0,
1);
}
void
softpipe_draw_arrays_instanced(struct pipe_context *pipe,
unsigned mode,
unsigned start,
unsigned count,
unsigned startInstance,
unsigned instanceCount)
{
softpipe_draw_range_elements_instanced(pipe,
NULL,
0,
0,
0xffffffff,
mode,
start,
count,
startInstance,
instanceCount);
}
void
softpipe_draw_elements_instanced(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned mode,
unsigned start,
unsigned count,
unsigned startInstance,
unsigned instanceCount)
{
softpipe_draw_range_elements_instanced(pipe,
indexBuffer,
indexSize,
0,
0xffffffff,
mode,
start,
count,
startInstance,
instanceCount);
}
static void
softpipe_draw_range_elements_instanced(struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned maxIndex,
unsigned mode,
unsigned start,
unsigned count,
unsigned startInstance,
unsigned instanceCount)
{
struct softpipe_context *sp = softpipe_context(pipe);
struct draw_context *draw = sp->draw;
unsigned i;
if (!softpipe_check_render_cond(sp))
return;
sp->reduced_api_prim = u_reduced_prim(mode);
if (sp->dirty) {
softpipe_update_derived(sp);
}
softpipe_map_transfers(sp);
softpipe_map_constant_buffers(sp);
/* Map vertex buffers */
for (i = 0; i < sp->num_vertex_buffers; i++) {
void *buf;
buf = pipe_buffer_map(pipe->screen,
sp->vertex_buffer[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;
mapped_indexes = pipe_buffer_map(pipe->screen,
indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer_range(draw,
indexSize,
minIndex,
maxIndex,
mapped_indexes);
} else {
/* no index/element buffer */
draw_set_mapped_element_buffer_range(draw,
0,
start,
start + count - 1,
NULL);
}
/* draw! */
draw_arrays_instanced(draw, mode, start, count, startInstance, instanceCount);
/* unmap vertex/index buffers - will cause draw module to flush */
for (i = 0; i < sp->num_vertex_buffers; i++) {
draw_set_mapped_vertex_buffer(draw, i, NULL);
pipe_buffer_unmap(pipe->screen, sp->vertex_buffer[i].buffer);
}
if (indexBuffer) {
draw_set_mapped_element_buffer(draw, 0, NULL);
pipe_buffer_unmap(pipe->screen, indexBuffer);
}
/* Note: leave drawing surfaces mapped */
softpipe_unmap_constant_buffers(sp);
sp->dirty_render_cache = TRUE;
}