src/mesa/drivers/dri/intel/intel_state.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * 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, sub license, 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 portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "main/glheader.h"
  30 #include "main/context.h"
  31 #include "main/macros.h"
  32 #include "main/enums.h"
  33 #include "main/colormac.h"
  34 #include "main/dd.h"
  35
  36 #include "intel_screen.h"
  37 #include "intel_context.h"
  38
  39 int
  40 intel_translate_shadow_compare_func(GLenum func)
  41 {
  42    switch (func) {
  43    case GL_NEVER:
  44        return COMPAREFUNC_ALWAYS;
  45    case GL_LESS:
  46        return COMPAREFUNC_LEQUAL;
  47    case GL_LEQUAL:
  48        return COMPAREFUNC_LESS;
  49    case GL_GREATER:
  50        return COMPAREFUNC_GEQUAL;
  51    case GL_GEQUAL:
  52       return COMPAREFUNC_GREATER;
  53    case GL_NOTEQUAL:
  54       return COMPAREFUNC_EQUAL;
  55    case GL_EQUAL:
  56       return COMPAREFUNC_NOTEQUAL;
  57    case GL_ALWAYS:
  58        return COMPAREFUNC_NEVER;
  59    }
  60
  61    fprintf(stderr, "Unknown value in %s: %x\n", __FUNCTION__, func);
  62    return COMPAREFUNC_NEVER;
  63 }
  64
  65 int
  66 intel_translate_compare_func(GLenum func)
  67 {
  68    switch (func) {
  69    case GL_NEVER:
  70       return COMPAREFUNC_NEVER;
  71    case GL_LESS:
  72       return COMPAREFUNC_LESS;
  73    case GL_LEQUAL:
  74       return COMPAREFUNC_LEQUAL;
  75    case GL_GREATER:
  76       return COMPAREFUNC_GREATER;
  77    case GL_GEQUAL:
  78       return COMPAREFUNC_GEQUAL;
  79    case GL_NOTEQUAL:
  80       return COMPAREFUNC_NOTEQUAL;
  81    case GL_EQUAL:
  82       return COMPAREFUNC_EQUAL;
  83    case GL_ALWAYS:
  84       return COMPAREFUNC_ALWAYS;
  85    }
  86
  87    fprintf(stderr, "Unknown value in %s: %x\n", __FUNCTION__, func);
  88    return COMPAREFUNC_ALWAYS;
  89 }
  90
  91 int
  92 intel_translate_stencil_op(GLenum op)
  93 {
  94    switch (op) {
  95    case GL_KEEP:
  96       return STENCILOP_KEEP;
  97    case GL_ZERO:
  98       return STENCILOP_ZERO;
  99    case GL_REPLACE:
 100       return STENCILOP_REPLACE;
 101    case GL_INCR:
 102       return STENCILOP_INCRSAT;
 103    case GL_DECR:
 104       return STENCILOP_DECRSAT;
 105    case GL_INCR_WRAP:
 106       return STENCILOP_INCR;
 107    case GL_DECR_WRAP:
 108       return STENCILOP_DECR;
 109    case GL_INVERT:
 110       return STENCILOP_INVERT;
 111    default:
 112       return STENCILOP_ZERO;
 113    }
 114 }
 115
 116 int
 117 intel_translate_blend_factor(GLenum factor)
 118 {
 119    switch (factor) {
 120    case GL_ZERO:
 121       return BLENDFACT_ZERO;
 122    case GL_SRC_ALPHA:
 123       return BLENDFACT_SRC_ALPHA;
 124    case GL_ONE:
 125       return BLENDFACT_ONE;
 126    case GL_SRC_COLOR:
 127       return BLENDFACT_SRC_COLR;
 128    case GL_ONE_MINUS_SRC_COLOR:
 129       return BLENDFACT_INV_SRC_COLR;
 130    case GL_DST_COLOR:
 131       return BLENDFACT_DST_COLR;
 132    case GL_ONE_MINUS_DST_COLOR:
 133       return BLENDFACT_INV_DST_COLR;
 134    case GL_ONE_MINUS_SRC_ALPHA:
 135       return BLENDFACT_INV_SRC_ALPHA;
 136    case GL_DST_ALPHA:
 137       return BLENDFACT_DST_ALPHA;
 138    case GL_ONE_MINUS_DST_ALPHA:
 139       return BLENDFACT_INV_DST_ALPHA;
 140    case GL_SRC_ALPHA_SATURATE:
 141       return BLENDFACT_SRC_ALPHA_SATURATE;
 142    case GL_CONSTANT_COLOR:
 143       return BLENDFACT_CONST_COLOR;
 144    case GL_ONE_MINUS_CONSTANT_COLOR:
 145       return BLENDFACT_INV_CONST_COLOR;
 146    case GL_CONSTANT_ALPHA:
 147       return BLENDFACT_CONST_ALPHA;
 148    case GL_ONE_MINUS_CONSTANT_ALPHA:
 149       return BLENDFACT_INV_CONST_ALPHA;
 150    }
 151
 152    fprintf(stderr, "Unknown value in %s: %x\n", __FUNCTION__, factor);
 153    return BLENDFACT_ZERO;
 154 }
 155
 156 int
 157 intel_translate_logic_op(GLenum opcode)
 158 {
 159    switch (opcode) {
 160    case GL_CLEAR:
 161       return LOGICOP_CLEAR;
 162    case GL_AND:
 163       return LOGICOP_AND;
 164    case GL_AND_REVERSE:
 165       return LOGICOP_AND_RVRSE;
 166    case GL_COPY:
 167       return LOGICOP_COPY;
 168    case GL_COPY_INVERTED:
 169       return LOGICOP_COPY_INV;
 170    case GL_AND_INVERTED:
 171       return LOGICOP_AND_INV;
 172    case GL_NOOP:
 173       return LOGICOP_NOOP;
 174    case GL_XOR:
 175       return LOGICOP_XOR;
 176    case GL_OR:
 177       return LOGICOP_OR;
 178    case GL_OR_INVERTED:
 179       return LOGICOP_OR_INV;
 180    case GL_NOR:
 181       return LOGICOP_NOR;
 182    case GL_EQUIV:
 183       return LOGICOP_EQUIV;
 184    case GL_INVERT:
 185       return LOGICOP_INV;
 186    case GL_OR_REVERSE:
 187       return LOGICOP_OR_RVRSE;
 188    case GL_NAND:
 189       return LOGICOP_NAND;
 190    case GL_SET:
 191       return LOGICOP_SET;
 192    default:
 193       return LOGICOP_SET;
 194    }
 195 }
 196
 197 /* Fallback to swrast for select and feedback.
 198  */
 199 static void
 200 intelRenderMode(GLcontext *ctx, GLenum mode)
 201 {
 202    struct intel_context *intel = intel_context(ctx);
 203    FALLBACK(intel, INTEL_FALLBACK_RENDERMODE, (mode != GL_RENDER));
 204 }
 205
 206
 207 void
 208 intelInitStateFuncs(struct dd_function_table *functions)
 209 {
 210    functions->RenderMode = intelRenderMode;
 211 }