src/mesa/drivers/dri/r300/r300_shader.c

   1 /*
   2  * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sublicense, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  */
  27
  28 #include "main/glheader.h"
  29
  30 #include "program/program.h"
  31 #include "tnl/tnl.h"
  32 #include "r300_context.h"
  33 #include "r300_fragprog_common.h"
  34
  35 static void freeFragProgCache(struct gl_context *ctx, struct r300_fragment_program_cont *cache)
  36 {
  37         struct r300_fragment_program *tmp, *fp = cache->progs;
  38
  39         while (fp) {
  40                 tmp = fp->next;
  41                 rc_constants_destroy(&fp->code.constants);
  42                 free(fp);
  43                 fp = tmp;
  44         }
  45 }
  46
  47 static void freeVertProgCache(struct gl_context *ctx, struct r300_vertex_program_cont *cache)
  48 {
  49         struct r300_vertex_program *tmp, *vp = cache->progs;
  50
  51         while (vp) {
  52                 tmp = vp->next;
  53                 rc_constants_destroy(&vp->code.constants);
  54                 _mesa_reference_vertprog(ctx, &vp->Base, NULL);
  55                 free(vp);
  56                 vp = tmp;
  57         }
  58 }
  59
  60 static struct gl_program *r300NewProgram(struct gl_context * ctx, GLenum target,
  61                                          GLuint id)
  62 {
  63         struct r300_vertex_program_cont *vp;
  64         struct r300_fragment_program_cont *fp;
  65
  66         switch (target) {
  67         case GL_VERTEX_STATE_PROGRAM_NV:
  68         case GL_VERTEX_PROGRAM_ARB:
  69                 vp = CALLOC_STRUCT(r300_vertex_program_cont);
  70                 return _mesa_init_vertex_program(ctx, &vp->mesa_program, target, id);
  71
  72         case GL_FRAGMENT_PROGRAM_NV:
  73         case GL_FRAGMENT_PROGRAM_ARB:
  74                 fp = CALLOC_STRUCT(r300_fragment_program_cont);
  75                 return _mesa_init_fragment_program(ctx, &fp->Base, target, id);
  76
  77         default:
  78                 _mesa_problem(ctx, "Bad target in r300NewProgram");
  79         }
  80
  81         return NULL;
  82 }
  83
  84 static void r300DeleteProgram(struct gl_context * ctx, struct gl_program *prog)
  85 {
  86         struct r300_vertex_program_cont *vp = (struct r300_vertex_program_cont *)prog;
  87         struct r300_fragment_program_cont *fp = (struct r300_fragment_program_cont *)prog;
  88
  89         switch (prog->Target) {
  90                 case GL_VERTEX_PROGRAM_ARB:
  91                         freeVertProgCache(ctx, vp);
  92                         break;
  93                 case GL_FRAGMENT_PROGRAM_ARB:
  94                         freeFragProgCache(ctx, fp);
  95                         break;
  96         }
  97
  98         _mesa_delete_program(ctx, prog);
  99 }
 100
 101 static GLboolean
 102 r300ProgramStringNotify(struct gl_context * ctx, GLenum target, struct gl_program *prog)
 103 {
 104         struct r300_vertex_program_cont *vp = (struct r300_vertex_program_cont *)prog;
 105         struct r300_fragment_program_cont *fp = (struct r300_fragment_program_cont *)prog;
 106
 107         switch (target) {
 108         case GL_VERTEX_PROGRAM_ARB:
 109                 freeVertProgCache(ctx, vp);
 110                 vp->progs = NULL;
 111                 break;
 112         case GL_FRAGMENT_PROGRAM_ARB:
 113                 freeFragProgCache(ctx, fp);
 114                 fp->progs = NULL;
 115                 break;
 116         }
 117
 118         /* need this for tcl fallbacks */
 119         (void) _tnl_program_string(ctx, target, prog);
 120
 121         /* XXX check if program is legal, within limits */
 122         return GL_TRUE;
 123 }
 124
 125 static GLboolean
 126 r300IsProgramNative(struct gl_context * ctx, GLenum target, struct gl_program *prog)
 127 {
 128         if (target == GL_FRAGMENT_PROGRAM_ARB) {
 129                 struct r300_fragment_program *fp = r300SelectAndTranslateFragmentShader(ctx);
 130
 131                 return !fp->error;
 132         } else {
 133                 struct r300_vertex_program *vp = r300SelectAndTranslateVertexShader(ctx);
 134
 135                 return !vp->error;
 136         }
 137 }
 138
 139 void r300InitShaderFuncs(struct dd_function_table *functions)
 140 {
 141         functions->NewProgram = r300NewProgram;
 142         functions->DeleteProgram = r300DeleteProgram;
 143         functions->ProgramStringNotify = r300ProgramStringNotify;
 144         functions->IsProgramNative = r300IsProgramNative;
 145 }