Home | History | Annotate | Download | only in svga
      1 /**********************************************************
      2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person
      5  * obtaining a copy of this software and associated documentation
      6  * files (the "Software"), to deal in the Software without
      7  * restriction, including without limitation the rights to use, copy,
      8  * modify, merge, publish, distribute, sublicense, and/or sell copies
      9  * of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be
     13  * included in all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     22  * SOFTWARE.
     23  *
     24  **********************************************************/
     25 
     26 #include "draw/draw_context.h"
     27 #include "util/u_inlines.h"
     28 #include "util/u_math.h"
     29 #include "util/u_memory.h"
     30 #include "util/u_bitmask.h"
     31 #include "tgsi/tgsi_parse.h"
     32 #include "tgsi/tgsi_text.h"
     33 
     34 #include "svga_context.h"
     35 #include "svga_tgsi.h"
     36 #include "svga_hw_reg.h"
     37 #include "svga_cmd.h"
     38 #include "svga_debug.h"
     39 
     40 
     41 static const struct tgsi_token *substitute_vs(
     42    unsigned shader_id,
     43    const struct tgsi_token *old_tokens )
     44 {
     45 #if 0
     46    if (shader_id == 12) {
     47    static struct tgsi_token tokens[300];
     48 
     49    const char *text =
     50       "VERT\n"
     51       "DCL IN[0]\n"
     52       "DCL IN[1]\n"
     53       "DCL IN[2]\n"
     54       "DCL OUT[0], POSITION\n"
     55       "DCL TEMP[0..4]\n"
     56       "IMM FLT32 {     1.0000,     1.0000,     1.0000,     1.0000 }\n"
     57       "IMM FLT32 {     0.45,     1.0000,     1.0000,     1.0000 }\n"
     58       "IMM FLT32 { 1.297863, 0.039245, 0.035993, 0.035976}\n"
     59       "IMM FLT32 { -0.019398, 1.696131, -0.202151, -0.202050  }\n"
     60       "IMM FLT32 { 0.051711, -0.348713, -0.979204, -0.978714  }\n"
     61       "IMM FLT32 { 0.000000, 0.000003, 139.491577, 141.421356 }\n"
     62       "DCL CONST[0..7]\n"
     63       "DCL CONST[9..16]\n"
     64       "  MOV TEMP[2], IMM[0]\n"
     65 
     66       "  MOV TEMP[2].xyz, IN[2]\n"
     67       "  MOV TEMP[2].xyz, IN[0]\n"
     68       "  MOV TEMP[2].xyz, IN[1]\n"
     69 
     70       "  MUL TEMP[1], IMM[3], TEMP[2].yyyy\n"
     71       "  MAD TEMP[3], IMM[2],  TEMP[2].xxxx, TEMP[1]\n"
     72       "  MAD TEMP[1], IMM[4], TEMP[2].zzzz, TEMP[3]\n"
     73       "  MAD TEMP[4], IMM[5], TEMP[2].wwww, TEMP[1]\n"
     74 
     75       "  MOV OUT[0], TEMP[4]\n"
     76       "  END\n";
     77 
     78    if (!tgsi_text_translate( text,
     79                              tokens,
     80                              Elements(tokens) ))
     81    {
     82       assert(0);
     83       return NULL;
     84    }
     85 
     86    return tokens;
     87    }
     88 #endif
     89 
     90    return old_tokens;
     91 }
     92 
     93 
     94 /***********************************************************************
     95  * Vertex shaders
     96  */
     97 
     98 static void *
     99 svga_create_vs_state(struct pipe_context *pipe,
    100                      const struct pipe_shader_state *templ)
    101 {
    102    struct svga_context *svga = svga_context(pipe);
    103    struct svga_vertex_shader *vs = CALLOC_STRUCT(svga_vertex_shader);
    104    if (!vs)
    105       return NULL;
    106 
    107    /* substitute a debug shader?
    108     */
    109    vs->base.tokens = tgsi_dup_tokens(substitute_vs(svga->debug.shader_id,
    110                                                    templ->tokens));
    111 
    112 
    113    /* Collect basic info that we'll need later:
    114     */
    115    tgsi_scan_shader(vs->base.tokens, &vs->base.info);
    116 
    117    {
    118       /* Need to do construct a new template in case we substitued a
    119        * debug shader.
    120        */
    121       struct pipe_shader_state tmp2 = *templ;
    122       tmp2.tokens = vs->base.tokens;
    123       vs->draw_shader = draw_create_vertex_shader(svga->swtnl.draw, &tmp2);
    124    }
    125 
    126    vs->base.id = svga->debug.shader_id++;
    127 
    128    if (SVGA_DEBUG & DEBUG_TGSI || 0) {
    129       debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
    130                    __FUNCTION__, vs->base.id,
    131                    vs->base.info.num_inputs, vs->base.info.num_outputs);
    132    }
    133 
    134    return vs;
    135 }
    136 
    137 static void svga_bind_vs_state(struct pipe_context *pipe, void *shader)
    138 {
    139    struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;
    140    struct svga_context *svga = svga_context(pipe);
    141 
    142    svga->curr.vs = vs;
    143    svga->dirty |= SVGA_NEW_VS;
    144 }
    145 
    146 
    147 static void svga_delete_vs_state(struct pipe_context *pipe, void *shader)
    148 {
    149    struct svga_context *svga = svga_context(pipe);
    150    struct svga_vertex_shader *vs = (struct svga_vertex_shader *)shader;
    151    struct svga_shader_result *result, *tmp;
    152    enum pipe_error ret;
    153 
    154    svga_hwtnl_flush_retry( svga );
    155 
    156    draw_delete_vertex_shader(svga->swtnl.draw, vs->draw_shader);
    157 
    158    for (result = vs->base.results; result; result = tmp ) {
    159       tmp = result->next;
    160 
    161       ret = SVGA3D_DestroyShader(svga->swc,
    162                                  result->id,
    163                                  SVGA3D_SHADERTYPE_VS );
    164       if(ret != PIPE_OK) {
    165          svga_context_flush(svga, NULL);
    166          ret = SVGA3D_DestroyShader(svga->swc,
    167                                     result->id,
    168                                     SVGA3D_SHADERTYPE_VS );
    169          assert(ret == PIPE_OK);
    170       }
    171 
    172       util_bitmask_clear( svga->vs_bm, result->id );
    173 
    174       svga_destroy_shader_result( result );
    175 
    176       /*
    177        * Remove stale references to this result to ensure a new result on the
    178        * same address will be detected as a change.
    179        */
    180       if(result == svga->state.hw_draw.vs)
    181          svga->state.hw_draw.vs = NULL;
    182    }
    183 
    184    FREE((void *)vs->base.tokens);
    185    FREE(vs);
    186 }
    187 
    188 
    189 void svga_init_vs_functions( struct svga_context *svga )
    190 {
    191    svga->pipe.create_vs_state = svga_create_vs_state;
    192    svga->pipe.bind_vs_state = svga_bind_vs_state;
    193    svga->pipe.delete_vs_state = svga_delete_vs_state;
    194 }
    195 
    196