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/**************************************************************************
*
* 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:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "pipe/draw/draw_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "pipe/p_util.h"
#include "sp_clear.h"
#include "sp_context.h"
#include "sp_flush.h"
#include "sp_prim_setup.h"
#include "sp_prim_vbuf.h"
#include "sp_state.h"
#include "sp_surface.h"
#include "sp_tile_cache.h"
#include "sp_texture.h"
#include "sp_winsys.h"
#include "sp_query.h"
/**
* Query format support for creating a texture, drawing surface, etc.
* \param format the format to test
* \param type one of PIPE_TEXTURE, PIPE_SURFACE
*/
static boolean
softpipe_is_format_supported( struct pipe_context *pipe,
enum pipe_format format, uint type )
{
switch (type) {
case PIPE_TEXTURE:
/* softpipe supports all texture formats */
return TRUE;
case PIPE_SURFACE:
/* softpipe supports all (off-screen) surface formats */
return TRUE;
default:
assert(0);
return FALSE;
}
}
/**
* Map any drawing surfaces which aren't already mapped
*/
void
softpipe_map_surfaces(struct softpipe_context *sp)
{
unsigned i;
for (i = 0; i < sp->framebuffer.num_cbufs; i++) {
sp_tile_cache_map_surfaces(sp->cbuf_cache[i]);
}
sp_tile_cache_map_surfaces(sp->zsbuf_cache);
}
/**
* Unmap any mapped drawing surfaces
*/
void
softpipe_unmap_surfaces(struct softpipe_context *sp)
{
uint i;
for (i = 0; i < sp->framebuffer.num_cbufs; i++)
sp_flush_tile_cache(sp, sp->cbuf_cache[i]);
sp_flush_tile_cache(sp, sp->zsbuf_cache);
for (i = 0; i < sp->framebuffer.num_cbufs; i++) {
sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]);
}
sp_tile_cache_unmap_surfaces(sp->zsbuf_cache);
}
static void softpipe_destroy( struct pipe_context *pipe )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
struct pipe_winsys *ws = pipe->winsys;
uint i;
draw_destroy( softpipe->draw );
softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple );
softpipe->quad.earlyz->destroy( softpipe->quad.earlyz );
softpipe->quad.shade->destroy( softpipe->quad.shade );
softpipe->quad.alpha_test->destroy( softpipe->quad.alpha_test );
softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
softpipe->quad.stencil_test->destroy( softpipe->quad.stencil_test );
softpipe->quad.occlusion->destroy( softpipe->quad.occlusion );
softpipe->quad.coverage->destroy( softpipe->quad.coverage );
softpipe->quad.bufloop->destroy( softpipe->quad.bufloop );
softpipe->quad.blend->destroy( softpipe->quad.blend );
softpipe->quad.colormask->destroy( softpipe->quad.colormask );
softpipe->quad.output->destroy( softpipe->quad.output );
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
sp_destroy_tile_cache(softpipe->zsbuf_cache);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
sp_destroy_tile_cache(softpipe->tex_cache[i]);
for (i = 0; i < Elements(softpipe->constants); i++) {
if (softpipe->constants[i].buffer) {
ws->buffer_reference(ws, &softpipe->constants[i].buffer, NULL);
}
}
FREE( softpipe );
}
static const char *softpipe_get_name( struct pipe_context *pipe )
{
return "softpipe";
}
static const char *softpipe_get_vendor( struct pipe_context *pipe )
{
return "Tungsten Graphics, Inc.";
}
static int softpipe_get_param(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
return 8;
case PIPE_CAP_NPOT_TEXTURES:
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 1;
case PIPE_CAP_GLSL:
return 1;
case PIPE_CAP_S3TC:
return 0;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 0;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 1;
case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
return 12; /* max 2Kx2K */
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return 8; /* max 128x128x128 */
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return 12; /* max 2Kx2K */
default:
return 0;
}
}
static float softpipe_get_paramf(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_LINE_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_LINE_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_POINT_WIDTH:
/* fall-through */
case PIPE_CAP_MAX_POINT_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 0.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
return 16.0; /* arbitrary */
default:
return 0;
}
}
struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
struct softpipe_winsys *softpipe_winsys )
{
struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
uint i;
#if defined(__i386__) || defined(__386__)
softpipe->use_sse = GETENV( "GALLIUM_NOSSE" ) == NULL;
#else
softpipe->use_sse = FALSE;
#endif
softpipe->dump_fs = GETENV( "GALLIUM_DUMP_FS" ) != NULL;
softpipe->pipe.winsys = pipe_winsys;
softpipe->pipe.destroy = softpipe_destroy;
/* queries */
softpipe->pipe.is_format_supported = softpipe_is_format_supported;
softpipe->pipe.get_name = softpipe_get_name;
softpipe->pipe.get_vendor = softpipe_get_vendor;
softpipe->pipe.get_param = softpipe_get_param;
softpipe->pipe.get_paramf = softpipe_get_paramf;
/* state setters */
softpipe->pipe.create_blend_state = softpipe_create_blend_state;
softpipe->pipe.bind_blend_state = softpipe_bind_blend_state;
softpipe->pipe.delete_blend_state = softpipe_delete_blend_state;
softpipe->pipe.create_sampler_state = softpipe_create_sampler_state;
softpipe->pipe.bind_sampler_state = softpipe_bind_sampler_state;
softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state;
softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
softpipe->pipe.bind_depth_stencil_alpha_state = softpipe_bind_depth_stencil_state;
softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state;
softpipe->pipe.bind_rasterizer_state = softpipe_bind_rasterizer_state;
softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state;
softpipe->pipe.create_fs_state = softpipe_create_fs_state;
softpipe->pipe.bind_fs_state = softpipe_bind_fs_state;
softpipe->pipe.delete_fs_state = softpipe_delete_fs_state;
softpipe->pipe.create_vs_state = softpipe_create_vs_state;
softpipe->pipe.bind_vs_state = softpipe_bind_vs_state;
softpipe->pipe.delete_vs_state = softpipe_delete_vs_state;
softpipe->pipe.set_blend_color = softpipe_set_blend_color;
softpipe->pipe.set_clip_state = softpipe_set_clip_state;
softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer;
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_sampler_texture = softpipe_set_sampler_texture;
softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
softpipe->pipe.set_vertex_buffer = softpipe_set_vertex_buffer;
softpipe->pipe.set_vertex_element = softpipe_set_vertex_element;
softpipe->pipe.draw_arrays = softpipe_draw_arrays;
softpipe->pipe.draw_elements = softpipe_draw_elements;
softpipe->pipe.clear = softpipe_clear;
softpipe->pipe.flush = softpipe_flush;
softpipe_init_query_funcs( softpipe );
/* textures */
softpipe->pipe.texture_create = softpipe_texture_create;
softpipe->pipe.texture_release = softpipe_texture_release;
softpipe->pipe.get_tex_surface = softpipe_get_tex_surface;
/*
* 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->zsbuf_cache = sp_create_tile_cache();
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
softpipe->tex_cache[i] = sp_create_tile_cache();
/* setup quad rendering stages */
softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
softpipe->quad.earlyz = sp_quad_earlyz_stage(softpipe);
softpipe->quad.shade = sp_quad_shade_stage(softpipe);
softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe);
softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
softpipe->quad.stencil_test = sp_quad_stencil_test_stage(softpipe);
softpipe->quad.occlusion = sp_quad_occlusion_stage(softpipe);
softpipe->quad.coverage = sp_quad_coverage_stage(softpipe);
softpipe->quad.bufloop = sp_quad_bufloop_stage(softpipe);
softpipe->quad.blend = sp_quad_blend_stage(softpipe);
softpipe->quad.colormask = sp_quad_colormask_stage(softpipe);
softpipe->quad.output = sp_quad_output_stage(softpipe);
softpipe->winsys = softpipe_winsys;
/*
* Create drawing context and plug our rendering stage into it.
*/
softpipe->draw = draw_create();
assert(softpipe->draw);
softpipe->setup = sp_draw_render_stage(softpipe);
if (GETENV( "SP_VBUF" ) != NULL) {
sp_init_vbuf(softpipe);
}
else {
draw_set_rasterize_stage(softpipe->draw, softpipe->setup);
}
sp_init_surface_functions(softpipe);
return &softpipe->pipe;
}
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