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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 "main/imports.h"
#include "main/macros.h"
#include "pipe/draw/draw_context.h"
#include "pipe/p_defines.h"
#include "sp_context.h"
#include "sp_clear.h"
#include "sp_region.h"
#include "sp_state.h"
#include "sp_surface.h"
#include "sp_prim_setup.h"
/**
* Return list of supported surface/texture formats.
* If we find texture and drawable support differs, add a selector
* parameter or another function.
*/
static const GLuint *
softpipe_supported_formats(struct pipe_context *pipe, GLuint *numFormats)
{
static const GLuint supported[] = {
PIPE_FORMAT_U_R8_G8_B8_A8,
PIPE_FORMAT_U_A8_R8_G8_B8,
PIPE_FORMAT_U_R5_G6_B5,
PIPE_FORMAT_U_L8,
PIPE_FORMAT_U_A8,
PIPE_FORMAT_U_I8,
PIPE_FORMAT_U_L8_A8,
PIPE_FORMAT_S_R16_G16_B16_A16,
PIPE_FORMAT_YCBCR,
PIPE_FORMAT_YCBCR_REV,
PIPE_FORMAT_U_Z16,
PIPE_FORMAT_U_Z32,
PIPE_FORMAT_F_Z32,
PIPE_FORMAT_S8_Z24,
PIPE_FORMAT_U_S8
};
*numFormats = sizeof(supported)/sizeof(supported[0]);
return supported;
}
static void map_surfaces(struct softpipe_context *sp)
{
struct pipe_context *pipe = &sp->pipe;
GLuint i;
for (i = 0; i < sp->framebuffer.num_cbufs; i++) {
struct softpipe_surface *sps = softpipe_surface(sp->framebuffer.cbufs[i]); pipe->region_map(pipe, sps->surface.region);
}
if (sp->framebuffer.zbuf) {
struct softpipe_surface *sps = softpipe_surface(sp->framebuffer.zbuf);
pipe->region_map(pipe, sps->surface.region);
}
/* XXX depth & stencil bufs */
}
static void unmap_surfaces(struct softpipe_context *sp)
{
struct pipe_context *pipe = &sp->pipe;
GLuint i;
for (i = 0; i < sp->framebuffer.num_cbufs; i++) {
struct softpipe_surface *sps = softpipe_surface(sp->framebuffer.cbufs[i]);
pipe->region_unmap(pipe, sps->surface.region);
}
if (sp->framebuffer.zbuf) {
struct softpipe_surface *sps = softpipe_surface(sp->framebuffer.zbuf);
pipe->region_unmap(pipe, sps->surface.region);
}
/* XXX depth & stencil bufs */
}
static void softpipe_destroy( struct pipe_context *pipe )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
draw_destroy( softpipe->draw );
free( softpipe );
}
static void softpipe_draw_vb( struct pipe_context *pipe,
struct vertex_buffer *VB )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
if (softpipe->dirty)
softpipe_update_derived( softpipe );
/* XXX move mapping/unmapping to higher/coarser level? */
map_surfaces(softpipe);
draw_vb( softpipe->draw, VB );
unmap_surfaces(softpipe);
}
static void
softpipe_draw_vertices(struct pipe_context *pipe,
GLuint mode,
GLuint numVertex, const GLfloat *verts,
GLuint numAttribs, const GLuint attribs[])
{
struct softpipe_context *softpipe = softpipe_context( pipe );
if (softpipe->dirty)
softpipe_update_derived( softpipe );
/* XXX move mapping/unmapping to higher/coarser level? */
map_surfaces(softpipe);
draw_vertices(softpipe->draw, mode, numVertex, verts, numAttribs, attribs);
unmap_surfaces(softpipe);
}
static void softpipe_reset_occlusion_counter(struct pipe_context *pipe)
{
struct softpipe_context *softpipe = softpipe_context( pipe );
softpipe->occlusion_counter = 0;
}
/* XXX pipe param should be const */
static GLuint softpipe_get_occlusion_counter(struct pipe_context *pipe)
{
struct softpipe_context *softpipe = softpipe_context( pipe );
return softpipe->occlusion_counter;
}
struct pipe_context *softpipe_create( void )
{
struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
softpipe->pipe.destroy = softpipe_destroy;
softpipe->pipe.supported_formats = softpipe_supported_formats;
softpipe->pipe.set_alpha_test_state = softpipe_set_alpha_test_state;
softpipe->pipe.set_blend_color = softpipe_set_blend_color;
softpipe->pipe.set_blend_state = softpipe_set_blend_state;
softpipe->pipe.set_clip_state = softpipe_set_clip_state;
softpipe->pipe.set_clear_color_state = softpipe_set_clear_color_state;
softpipe->pipe.set_depth_state = softpipe_set_depth_test_state;
softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
softpipe->pipe.set_fs_state = softpipe_set_fs_state;
softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
softpipe->pipe.set_sampler_state = softpipe_set_sampler_state;
softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
softpipe->pipe.set_setup_state = softpipe_set_setup_state;
softpipe->pipe.set_stencil_state = softpipe_set_stencil_state;
softpipe->pipe.set_texture_state = softpipe_set_texture_state;
softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
softpipe->pipe.draw_vb = softpipe_draw_vb;
softpipe->pipe.draw_vertices = softpipe_draw_vertices;
softpipe->pipe.clear = softpipe_clear;
softpipe->pipe.reset_occlusion_counter = softpipe_reset_occlusion_counter;
softpipe->pipe.get_occlusion_counter = softpipe_get_occlusion_counter;
softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_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);
/*
* Create drawing context and plug our rendering stage into it.
*/
softpipe->draw = draw_create();
assert(softpipe->draw);
draw_set_setup_stage(softpipe->draw, sp_draw_render_stage(softpipe));
sp_init_region_functions(softpipe);
sp_init_surface_functions(softpipe);
/*
* XXX we could plug GL selection/feedback into the drawing pipeline
* by specifying a different setup/render stage.
*/
return &softpipe->pipe;
}
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