Subversion Repositories Kolibri OS

/**********************************************************

 * Copyright 2008-2009 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, sublicense, 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 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

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 * 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.

 *

 **********************************************************/

#include "draw/draw_context.h"

#include "util/u_inlines.h"

#include "util/u_math.h"

#include "util/u_memory.h"

#include "util/u_bitmask.h"

#include "tgsi/tgsi_parse.h"

#include "tgsi/tgsi_text.h"

#include "svga_context.h"

#include "svga_tgsi.h"

#include "svga_hw_reg.h"

#include "svga_cmd.h"

#include "svga_debug.h"

/**

 * Substitute a debug shader.

 */

static const struct tgsi_token *

substitute_vs(unsigned shader_id, const struct tgsi_token *old_tokens)

{

#if 0

   if (shader_id == 12) {

   static struct tgsi_token tokens[300];

   const char *text =

      "VERT\n"

      "DCL IN[0]\n"

      "DCL IN[1]\n"

      "DCL IN[2]\n"

      "DCL OUT[0], POSITION\n"

      "DCL TEMP[0..4]\n"

      "IMM FLT32 {     1.0000,     1.0000,     1.0000,     1.0000 }\n"

      "IMM FLT32 {     0.45,     1.0000,     1.0000,     1.0000 }\n"

      "IMM FLT32 { 1.297863, 0.039245, 0.035993, 0.035976}\n"

      "IMM FLT32 { -0.019398, 1.696131, -0.202151, -0.202050  }\n"

      "IMM FLT32 { 0.051711, -0.348713, -0.979204, -0.978714  }\n"

      "IMM FLT32 { 0.000000, 0.000003, 139.491577, 141.421356 }\n"

      "DCL CONST[0..7]\n"

      "DCL CONST[9..16]\n"

      "  MOV TEMP[2], IMM[0]\n"

      "  MOV TEMP[2].xyz, IN[2]\n"

      "  MOV TEMP[2].xyz, IN[0]\n"

      "  MOV TEMP[2].xyz, IN[1]\n"

      "  MUL TEMP[1], IMM[3], TEMP[2].yyyy\n"

      "  MAD TEMP[3], IMM[2],  TEMP[2].xxxx, TEMP[1]\n"

      "  MAD TEMP[1], IMM[4], TEMP[2].zzzz, TEMP[3]\n"

      "  MAD TEMP[4], IMM[5], TEMP[2].wwww, TEMP[1]\n"

      "  MOV OUT[0], TEMP[4]\n"

      "  END\n";

   if (!tgsi_text_translate(text,

                             tokens,

                             Elements(tokens)))

   {

      assert(0);

      return NULL;

   }

   return tokens;

   }

#endif

   return old_tokens;

}

static void *

svga_create_vs_state(struct pipe_context *pipe,

                     const struct pipe_shader_state *templ)

{

   struct svga_context *svga = svga_context(pipe);

   struct svga_vertex_shader *vs = CALLOC_STRUCT(svga_vertex_shader);

   if (!vs)

      return NULL;

   /* substitute a debug shader?

    */

   vs->base.tokens = tgsi_dup_tokens(substitute_vs(svga->debug.shader_id,

                                                   templ->tokens));

   /* Collect basic info that we'll need later:

    */

   tgsi_scan_shader(vs->base.tokens, &vs->base.info);

   {

      /* Need to do construct a new template in case we substitued a

       * debug shader.

       */

      struct pipe_shader_state tmp2 = *templ;

      tmp2.tokens = vs->base.tokens;

      vs->draw_shader = draw_create_vertex_shader(svga->swtnl.draw, &tmp2);

   }

   vs->base.id = svga->debug.shader_id++;

   if (SVGA_DEBUG & DEBUG_TGSI || 0) {

      debug_printf("%s id: %u, inputs: %u, outputs: %u\n",

                   __FUNCTION__, vs->base.id,

                   vs->base.info.num_inputs, vs->base.info.num_outputs);

   }

   return vs;

}

static void

svga_bind_vs_state(struct pipe_context *pipe, void *shader)

{

   struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;

   struct svga_context *svga = svga_context(pipe);

   svga->curr.vs = vs;

   svga->dirty |= SVGA_NEW_VS;

}

static void

svga_delete_vs_state(struct pipe_context *pipe, void *shader)

{

   struct svga_context *svga = svga_context(pipe);

   struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;

   struct svga_shader_result *result, *tmp;

   enum pipe_error ret;

   svga_hwtnl_flush_retry(svga);

   draw_delete_vertex_shader(svga->swtnl.draw, vs->draw_shader);

   for (result = vs->base.results; result; result = tmp) {

      tmp = result->next;

      ret = SVGA3D_DestroyShader(svga->swc, result->id, SVGA3D_SHADERTYPE_VS);

      if (ret != PIPE_OK) {

         svga_context_flush(svga, NULL);

         ret = SVGA3D_DestroyShader(svga->swc, result->id,

                                    SVGA3D_SHADERTYPE_VS);

         assert(ret == PIPE_OK);

      }

      util_bitmask_clear(svga->vs_bm, result->id);

      svga_destroy_shader_result(result);

      /*

       * Remove stale references to this result to ensure a new result on the

       * same address will be detected as a change.

       */

      if (result == svga->state.hw_draw.vs)

         svga->state.hw_draw.vs = NULL;

   }

   FREE((void *)vs->base.tokens);

   FREE(vs);

}

void

svga_init_vs_functions(struct svga_context *svga)

{

   svga->pipe.create_vs_state = svga_create_vs_state;

   svga->pipe.bind_vs_state = svga_bind_vs_state;

   svga->pipe.delete_vs_state = svga_delete_vs_state;

}