324 lines
9.2 KiB
C
324 lines
9.2 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "pipe/p_winsys.h"
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#include "pipe/p_context.h"
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#include "pipe/p_shader_tokens.h"
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#include "pipe/p_inlines.h"
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#include "cso_cache/cso_context.h"
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#include "util/u_math.h"
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#include "util/u_memory.h"
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#include "util/u_simple_shaders.h"
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#include "trace/tr_screen.h"
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#include "trace/tr_context.h"
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#include "st_device.h"
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#include "st_winsys.h"
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static void
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st_device_really_destroy(struct st_device *st_dev)
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{
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if(st_dev->screen)
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st_dev->screen->destroy(st_dev->screen);
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FREE(st_dev);
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}
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void
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st_device_destroy(struct st_device *st_dev)
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{
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if(!--st_dev->refcount)
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st_device_really_destroy(st_dev);
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}
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static struct st_device *
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st_device_create_from_st_winsys(const struct st_winsys *st_ws)
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{
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struct st_device *st_dev;
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if(!st_ws->screen_create ||
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!st_ws->context_create)
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return NULL;
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st_dev = CALLOC_STRUCT(st_device);
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if(!st_dev)
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return NULL;
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st_dev->refcount = 1;
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st_dev->st_ws = st_ws;
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st_dev->real_screen = st_ws->screen_create();
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if(!st_dev->real_screen) {
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st_device_destroy(st_dev);
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return NULL;
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}
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st_dev->screen = trace_screen_create(st_dev->real_screen);
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if(!st_dev->screen) {
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st_device_destroy(st_dev);
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return NULL;
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}
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return st_dev;
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}
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struct st_device *
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st_device_create(boolean hardware) {
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if(hardware)
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return st_device_create_from_st_winsys(&st_hardpipe_winsys);
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else
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return st_device_create_from_st_winsys(&st_softpipe_winsys);
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}
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void
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st_context_destroy(struct st_context *st_ctx)
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{
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unsigned i;
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if(st_ctx) {
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struct st_device *st_dev = st_ctx->st_dev;
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if(st_ctx->cso) {
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cso_delete_vertex_shader(st_ctx->cso, st_ctx->vs);
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cso_delete_fragment_shader(st_ctx->cso, st_ctx->fs);
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cso_destroy_context(st_ctx->cso);
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}
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if(st_ctx->pipe)
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st_ctx->pipe->destroy(st_ctx->pipe);
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for(i = 0; i < PIPE_MAX_SAMPLERS; ++i)
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pipe_texture_reference(&st_ctx->sampler_textures[i], NULL);
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pipe_texture_reference(&st_ctx->default_texture, NULL);
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FREE(st_ctx);
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if(!--st_dev->refcount)
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st_device_really_destroy(st_dev);
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}
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}
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struct st_context *
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st_context_create(struct st_device *st_dev)
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{
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struct st_context *st_ctx;
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st_ctx = CALLOC_STRUCT(st_context);
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if(!st_ctx)
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return NULL;
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st_ctx->st_dev = st_dev;
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++st_dev->refcount;
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st_ctx->real_pipe = st_dev->st_ws->context_create(st_dev->real_screen);
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if(!st_ctx->real_pipe) {
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st_context_destroy(st_ctx);
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return NULL;
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}
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st_ctx->pipe = trace_context_create(st_dev->screen, st_ctx->real_pipe);
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if(!st_ctx->pipe) {
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st_context_destroy(st_ctx);
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return NULL;
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}
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st_ctx->cso = cso_create_context(st_ctx->pipe);
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if(!st_ctx->cso) {
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st_context_destroy(st_ctx);
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return NULL;
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}
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/* disabled blending/masking */
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{
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struct pipe_blend_state blend;
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memset(&blend, 0, sizeof(blend));
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blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
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blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
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blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
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blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
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blend.colormask = PIPE_MASK_RGBA;
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cso_set_blend(st_ctx->cso, &blend);
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}
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/* no-op depth/stencil/alpha */
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{
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struct pipe_depth_stencil_alpha_state depthstencil;
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memset(&depthstencil, 0, sizeof(depthstencil));
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cso_set_depth_stencil_alpha(st_ctx->cso, &depthstencil);
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}
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/* rasterizer */
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{
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struct pipe_rasterizer_state rasterizer;
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memset(&rasterizer, 0, sizeof(rasterizer));
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rasterizer.front_winding = PIPE_WINDING_CW;
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rasterizer.cull_mode = PIPE_WINDING_NONE;
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rasterizer.bypass_clipping = 1;
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/*rasterizer.bypass_vs = 1;*/
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cso_set_rasterizer(st_ctx->cso, &rasterizer);
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}
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/* identity viewport */
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{
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struct pipe_viewport_state viewport;
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viewport.scale[0] = 1.0;
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viewport.scale[1] = 1.0;
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viewport.scale[2] = 1.0;
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viewport.scale[3] = 1.0;
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viewport.translate[0] = 0.0;
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viewport.translate[1] = 0.0;
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viewport.translate[2] = 0.0;
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viewport.translate[3] = 0.0;
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cso_set_viewport(st_ctx->cso, &viewport);
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}
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/* samplers */
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{
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struct pipe_sampler_state sampler;
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unsigned i;
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memset(&sampler, 0, sizeof(sampler));
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sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
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sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
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sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
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sampler.normalized_coords = 1;
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for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
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cso_single_sampler(st_ctx->cso, i, &sampler);
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cso_single_sampler_done(st_ctx->cso);
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}
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/* default textures */
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{
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struct pipe_screen *screen = st_dev->screen;
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struct pipe_texture templat;
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struct pipe_surface *surface;
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unsigned i;
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memset( &templat, 0, sizeof( templat ) );
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templat.target = PIPE_TEXTURE_2D;
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templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
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templat.block.size = 4;
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templat.block.width = 1;
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templat.block.height = 1;
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templat.width[0] = 1;
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templat.height[0] = 1;
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templat.depth[0] = 1;
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templat.last_level = 0;
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st_ctx->default_texture = screen->texture_create( screen, &templat );
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if(st_ctx->default_texture) {
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surface = screen->get_tex_surface( screen,
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st_ctx->default_texture, 0, 0, 0,
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PIPE_BUFFER_USAGE_CPU_WRITE );
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if(surface) {
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uint32_t *map;
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map = (uint32_t *) pipe_surface_map(surface, PIPE_BUFFER_USAGE_CPU_WRITE );
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if(map) {
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*map = 0x00000000;
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pipe_surface_unmap( surface );
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}
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pipe_surface_reference(&surface, NULL);
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}
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}
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for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
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pipe_texture_reference(&st_ctx->sampler_textures[i], st_ctx->default_texture);
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cso_set_sampler_textures(st_ctx->cso, PIPE_MAX_SAMPLERS, st_ctx->sampler_textures);
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}
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/* vertex shader */
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{
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struct pipe_shader_state vert_shader;
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const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
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TGSI_SEMANTIC_GENERIC };
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const uint semantic_indexes[] = { 0, 0 };
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st_ctx->vs = util_make_vertex_passthrough_shader(st_ctx->pipe,
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2,
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semantic_names,
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semantic_indexes,
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&vert_shader);
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cso_set_vertex_shader_handle(st_ctx->cso, st_ctx->vs);
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}
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/* fragment shader */
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{
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struct pipe_shader_state frag_shader;
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st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe,
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&frag_shader);
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cso_set_fragment_shader_handle(st_ctx->cso, st_ctx->fs);
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}
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return st_ctx;
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}
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void
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st_buffer_destroy(struct st_buffer *st_buf)
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{
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if(st_buf) {
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struct pipe_winsys *winsys = st_buf->st_dev->screen->winsys;
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pipe_buffer_reference(winsys, &st_buf->buffer, NULL);
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FREE(st_buf);
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}
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}
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struct st_buffer *
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st_buffer_create(struct st_device *st_dev,
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unsigned alignment, unsigned usage, unsigned size)
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{
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struct pipe_winsys *winsys = st_dev->screen->winsys;
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struct st_buffer *st_buf;
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st_buf = CALLOC_STRUCT(st_buffer);
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if(!st_buf)
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return NULL;
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st_buf->st_dev = st_dev;
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st_buf->buffer = winsys->buffer_create(winsys, alignment, usage, size);
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if(!st_buf->buffer) {
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st_buffer_destroy(st_buf);
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return NULL;
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}
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return st_buf;
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}
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