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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
* Copyright 2008 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, 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:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "pipe/p_defines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "tgsi/tgsi_exec.h"
#include "sp_clear.h"
#include "sp_context.h"
#include "sp_flush.h"
#include "sp_prim_vbuf.h"
#include "sp_state.h"
#include "sp_surface.h"
#include "sp_tile_cache.h"
#include "sp_tex_tile_cache.h"
#include "sp_texture.h"
#include "sp_query.h"
/**
* Map any drawing surfaces which aren't already mapped
*/
void
softpipe_map_transfers(struct softpipe_context *sp)
{
unsigned i;
for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
}
sp_tile_cache_map_transfers(sp->zsbuf_cache);
}
/**
* Unmap any mapped drawing surfaces
*/
void
softpipe_unmap_transfers(struct softpipe_context *sp)
{
uint i;
for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
}
sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
}
static void
softpipe_destroy( struct pipe_context *pipe )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
uint i;
if (softpipe->draw)
draw_destroy( softpipe->draw );
softpipe->quad.shade->destroy( softpipe->quad.shade );
softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
softpipe->quad.blend->destroy( softpipe->quad.blend );
softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
}
sp_destroy_tile_cache(softpipe->zsbuf_cache);
pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
sp_destroy_tex_tile_cache(softpipe->tex_cache[i]);
pipe_sampler_view_reference(&softpipe->sampler_views[i], NULL);
}
for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
}
for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
sp_destroy_tex_tile_cache(softpipe->geometry_tex_cache[i]);
pipe_sampler_view_reference(&softpipe->geometry_sampler_views[i], NULL);
}
for (i = 0; i < PIPE_SHADER_TYPES; i++) {
uint j;
for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
if (softpipe->constants[i][j]) {
pipe_resource_reference(&softpipe->constants[i][j], NULL);
}
}
}
tgsi_exec_machine_destroy(softpipe->fs_machine);
FREE( softpipe );
}
/**
* if (the texture is being used as a framebuffer surface)
* return PIPE_REFERENCED_FOR_WRITE
* else if (the texture is a bound texture source)
* return PIPE_REFERENCED_FOR_READ
* else
* return PIPE_UNREFERENCED
*/
static unsigned int
softpipe_is_resource_referenced( struct pipe_context *pipe,
struct pipe_resource *texture,
unsigned face, unsigned level)
{
struct softpipe_context *softpipe = softpipe_context( pipe );
unsigned i;
if (texture->target == PIPE_BUFFER)
return PIPE_UNREFERENCED;
/* check if any of the bound drawing surfaces are this texture */
if (softpipe->dirty_render_cache) {
for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
if (softpipe->framebuffer.cbufs[i] &&
softpipe->framebuffer.cbufs[i]->texture == texture) {
return PIPE_REFERENCED_FOR_WRITE;
}
}
if (softpipe->framebuffer.zsbuf &&
softpipe->framebuffer.zsbuf->texture == texture) {
return PIPE_REFERENCED_FOR_WRITE;
}
}
/* check if any of the tex_cache textures are this texture */
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
if (softpipe->tex_cache[i] &&
softpipe->tex_cache[i]->texture == texture)
return PIPE_REFERENCED_FOR_READ;
}
for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
if (softpipe->vertex_tex_cache[i] &&
softpipe->vertex_tex_cache[i]->texture == texture)
return PIPE_REFERENCED_FOR_READ;
}
for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
if (softpipe->geometry_tex_cache[i] &&
softpipe->geometry_tex_cache[i]->texture == texture)
return PIPE_REFERENCED_FOR_READ;
}
return PIPE_UNREFERENCED;
}
static void
softpipe_render_condition( struct pipe_context *pipe,
struct pipe_query *query,
uint mode )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
softpipe->render_cond_query = query;
softpipe->render_cond_mode = mode;
}
struct pipe_context *
softpipe_create_context( struct pipe_screen *screen,
void *priv )
{
struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
uint i;
util_init_math();
#ifdef PIPE_ARCH_X86
softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
#else
softpipe->use_sse = FALSE;
#endif
softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE );
softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
softpipe->pipe.winsys = NULL;
softpipe->pipe.screen = screen;
softpipe->pipe.destroy = softpipe_destroy;
softpipe->pipe.priv = priv;
/* state setters */
softpipe_init_blend_funcs(&softpipe->pipe);
softpipe_init_rasterizer_funcs(&softpipe->pipe);
softpipe_init_sampler_funcs(&softpipe->pipe);
softpipe_init_shader_funcs(&softpipe->pipe);
softpipe_init_vertex_funcs(&softpipe->pipe);
softpipe->pipe.create_stream_output_state = softpipe_create_stream_output_state;
softpipe->pipe.bind_stream_output_state = softpipe_bind_stream_output_state;
softpipe->pipe.delete_stream_output_state = softpipe_delete_stream_output_state;
softpipe->pipe.set_clip_state = softpipe_set_clip_state;
softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
softpipe->pipe.set_stream_output_buffers = softpipe_set_stream_output_buffers;
softpipe->pipe.draw_vbo = softpipe_draw_vbo;
softpipe->pipe.draw_stream_output = softpipe_draw_stream_output;
softpipe->pipe.clear = softpipe_clear;
softpipe->pipe.flush = softpipe_flush;
softpipe->pipe.is_resource_referenced = softpipe_is_resource_referenced;
softpipe_init_query_funcs( softpipe );
softpipe_init_texture_funcs( &softpipe->pipe );
softpipe->pipe.render_condition = softpipe_render_condition;
/*
* Alloc caches for accessing drawing surfaces and textures.
* Must be before quad stage setup!
*/
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
softpipe->tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
}
for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
}
softpipe->fs_machine = tgsi_exec_machine_create();
/* setup quad rendering stages */
softpipe->quad.shade = sp_quad_shade_stage(softpipe);
softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
softpipe->quad.blend = sp_quad_blend_stage(softpipe);
softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
/*
* Create drawing context and plug our rendering stage into it.
*/
softpipe->draw = draw_create(&softpipe->pipe);
if (!softpipe->draw)
goto fail;
draw_texture_samplers(softpipe->draw,
PIPE_SHADER_VERTEX,
PIPE_MAX_VERTEX_SAMPLERS,
(struct tgsi_sampler **)
softpipe->tgsi.vert_samplers_list);
draw_texture_samplers(softpipe->draw,
PIPE_SHADER_GEOMETRY,
PIPE_MAX_GEOMETRY_SAMPLERS,
(struct tgsi_sampler **)
softpipe->tgsi.geom_samplers_list);
if (debug_get_bool_option( "SP_NO_RAST", FALSE ))
softpipe->no_rast = TRUE;
softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
if (!softpipe->vbuf_backend)
goto fail;
softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
if (!softpipe->vbuf)
goto fail;
draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
draw_set_render(softpipe->draw, softpipe->vbuf_backend);
/* plug in AA line/point stages */
draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
/* Do polygon stipple w/ texture map + frag prog? */
#if DO_PSTIPPLE_IN_DRAW_MODULE
draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
#endif
draw_wide_point_sprites(softpipe->draw, TRUE);
sp_init_surface_functions(softpipe);
return &softpipe->pipe;
fail:
softpipe_destroy(&softpipe->pipe);
return NULL;
}
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