src/gallium/auxiliary/util/u_caps.c

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   3  * Copyright 2010 Vmware, Inc.
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  16  * of the Software.
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  26  **************************************************************************/
  27
  28 #include "pipe/p_screen.h"
  29 #include "util/u_format.h"
  30 #include "util/u_debug.h"
  31 #include "u_caps.h"
  32
  33 /**
  34  * Iterates over a list of caps checks as defined in u_caps.h. Should
  35  * all checks pass returns TRUE and out is set to the last element of
  36  * the list (TERMINATE). Should any check fail returns FALSE and set
  37  * out to the index of the start of the first failing check.
  38  */
  39 boolean
  40 util_check_caps_out(struct pipe_screen *screen, const unsigned *list, int *out)
  41 {
  42    int i, tmpi;
  43    float tmpf;
  44
  45    for (i = 0; list[i];) {
  46       switch(list[i++]) {
  47       case UTIL_CAPS_CHECK_CAP:
  48          if (!screen->get_param(screen, list[i++])) {
  49             *out = i - 2;
  50             return FALSE;
  51          }
  52          break;
  53       case UTIL_CAPS_CHECK_INT:
  54          tmpi = screen->get_param(screen, list[i++]);
  55          if (tmpi < (int)list[i++]) {
  56             *out = i - 3;
  57             return FALSE;
  58          }
  59          break;
  60       case UTIL_CAPS_CHECK_FLOAT:
  61          tmpf = screen->get_paramf(screen, list[i++]);
  62          if (tmpf < (float)list[i++]) {
  63             *out = i - 3;
  64             return FALSE;
  65          }
  66          break;
  67       case UTIL_CAPS_CHECK_FORMAT:
  68          if (!screen->is_format_supported(screen,
  69                                           list[i++],
  70                                           PIPE_TEXTURE_2D,
  71                                           0,
  72                                           PIPE_BIND_SAMPLER_VIEW,
  73                                           0)) {
  74             *out = i - 2;
  75             return FALSE;
  76          }
  77          break;
  78       case UTIL_CAPS_CHECK_UNIMPLEMENTED:
  79          *out = i - 1;
  80          return FALSE;
  81       default:
  82          assert(!"Unsupported check");
  83          return FALSE;
  84       }
  85    }
  86
  87    *out = i;
  88    return TRUE;
  89 }
  90
  91 /**
  92  * Iterates over a list of caps checks as defined in u_caps.h.
  93  * Returns TRUE if all caps checks pass returns FALSE otherwise.
  94  */
  95 boolean
  96 util_check_caps(struct pipe_screen *screen, const unsigned *list)
  97 {
  98    int out;
  99    return util_check_caps_out(screen, list, &out);
 100 }
 101
 102
 103 /*
 104  * Below follows some demo lists.
 105  *
 106  * None of these lists are exhausting lists of what is
 107  * actually needed to support said API and more here for
 108  * as example on how to uses the above functions. Especially
 109  * for DX10 and DX11 where Gallium is missing features.
 110  */
 111
 112 /* DX 9_1 */
 113 static unsigned caps_dx_9_1[] = {
 114    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 1),
 115    UTIL_CHECK_INT(MAX_TEXTURE_2D_LEVELS, 12),    /* 2048 */
 116    UTIL_CHECK_INT(MAX_TEXTURE_3D_LEVELS, 9),     /* 256 */
 117    UTIL_CHECK_INT(MAX_TEXTURE_CUBE_LEVELS, 10),  /* 512 */
 118    UTIL_CHECK_FLOAT(MAX_TEXTURE_ANISOTROPY, 2),
 119    UTIL_CHECK_TERMINATE
 120 };
 121
 122 /* DX 9_2 */
 123 static unsigned caps_dx_9_2[] = {
 124    UTIL_CHECK_CAP(OCCLUSION_QUERY),
 125    UTIL_CHECK_CAP(BLEND_EQUATION_SEPARATE),
 126    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 1),
 127    UTIL_CHECK_INT(MAX_TEXTURE_2D_LEVELS, 12),    /* 2048 */
 128    UTIL_CHECK_INT(MAX_TEXTURE_3D_LEVELS, 9),     /* 256 */
 129    UTIL_CHECK_INT(MAX_TEXTURE_CUBE_LEVELS, 10),  /* 512 */
 130    UTIL_CHECK_FLOAT(MAX_TEXTURE_ANISOTROPY, 16),
 131    UTIL_CHECK_TERMINATE
 132 };
 133
 134 /* DX 9_3 */
 135 static unsigned caps_dx_9_3[] = {
 136    UTIL_CHECK_CAP(SM3),
 137  //UTIL_CHECK_CAP(INSTANCING),
 138    UTIL_CHECK_CAP(OCCLUSION_QUERY),
 139    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 4),
 140    UTIL_CHECK_INT(MAX_TEXTURE_2D_LEVELS, 13),    /* 4096 */
 141    UTIL_CHECK_INT(MAX_TEXTURE_3D_LEVELS, 9),     /* 256 */
 142    UTIL_CHECK_INT(MAX_TEXTURE_CUBE_LEVELS, 10),  /* 512 */
 143    UTIL_CHECK_FLOAT(MAX_TEXTURE_ANISOTROPY, 16),
 144    UTIL_CHECK_TERMINATE
 145 };
 146
 147 /* DX 10 */
 148 static unsigned caps_dx_10[] = {
 149    UTIL_CHECK_CAP(SM3),
 150  //UTIL_CHECK_CAP(INSTANCING),
 151    UTIL_CHECK_CAP(OCCLUSION_QUERY),
 152    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 8),
 153    UTIL_CHECK_INT(MAX_TEXTURE_2D_LEVELS, 14),    /* 8192 */
 154    UTIL_CHECK_INT(MAX_TEXTURE_3D_LEVELS, 12),    /* 2048 */
 155    UTIL_CHECK_INT(MAX_TEXTURE_CUBE_LEVELS, 14),  /* 8192 */
 156    UTIL_CHECK_FLOAT(MAX_TEXTURE_ANISOTROPY, 16),
 157    UTIL_CHECK_UNIMPLEMENTED, /* XXX Unimplemented features in Gallium */
 158    UTIL_CHECK_TERMINATE
 159 };
 160
 161 /* DX11 */
 162 static unsigned caps_dx_11[] = {
 163    UTIL_CHECK_CAP(SM3),
 164  //UTIL_CHECK_CAP(INSTANCING),
 165    UTIL_CHECK_CAP(OCCLUSION_QUERY),
 166    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 8),
 167    UTIL_CHECK_INT(MAX_TEXTURE_2D_LEVELS, 14),    /* 16384 */
 168    UTIL_CHECK_INT(MAX_TEXTURE_3D_LEVELS, 12),    /* 2048 */
 169    UTIL_CHECK_INT(MAX_TEXTURE_CUBE_LEVELS, 14),  /* 16384 */
 170    UTIL_CHECK_FLOAT(MAX_TEXTURE_ANISOTROPY, 16),
 171    UTIL_CHECK_FORMAT(B8G8R8A8_UNORM),
 172    UTIL_CHECK_UNIMPLEMENTED, /* XXX Unimplemented features in Gallium */
 173    UTIL_CHECK_TERMINATE
 174 };
 175
 176 /* OpenGL 2.1 */
 177 static unsigned caps_opengl_2_1[] = {
 178    UTIL_CHECK_CAP(GLSL),
 179    UTIL_CHECK_CAP(OCCLUSION_QUERY),
 180    UTIL_CHECK_CAP(TWO_SIDED_STENCIL),
 181    UTIL_CHECK_CAP(BLEND_EQUATION_SEPARATE),
 182    UTIL_CHECK_INT(MAX_RENDER_TARGETS, 2),
 183    UTIL_CHECK_TERMINATE
 184 };
 185
 186 /* OpenGL 3.0 */
 187 /* UTIL_CHECK_INT(MAX_RENDER_TARGETS, 8), */
 188
 189 /* Shader Model 3 */
 190 static unsigned caps_sm3[] = {
 191     UTIL_CHECK_INT(MAX_FS_INSTRUCTIONS, 512),
 192     UTIL_CHECK_INT(MAX_FS_INPUTS, 10),
 193     UTIL_CHECK_INT(MAX_FS_TEMPS, 32),
 194     UTIL_CHECK_INT(MAX_FS_ADDRS, 1),
 195     UTIL_CHECK_INT(MAX_FS_CONSTS, 224),
 196
 197     UTIL_CHECK_INT(MAX_VS_INSTRUCTIONS, 512),
 198     UTIL_CHECK_INT(MAX_VS_INPUTS, 16),
 199     UTIL_CHECK_INT(MAX_VS_TEMPS, 32),
 200     UTIL_CHECK_INT(MAX_VS_ADDRS, 2),
 201     UTIL_CHECK_INT(MAX_VS_CONSTS, 256),
 202
 203     UTIL_CHECK_TERMINATE
 204 };
 205
 206 /**
 207  * Demo function which checks against theoretical caps needed for different APIs.
 208  */
 209 void util_caps_demo_print(struct pipe_screen *screen)
 210 {
 211    struct {
 212       char* name;
 213       unsigned *list;
 214    } list[] = {
 215       {"DX 9.1", caps_dx_9_1},
 216       {"DX 9.2", caps_dx_9_2},
 217       {"DX 9.3", caps_dx_9_3},
 218       {"DX 10", caps_dx_10},
 219       {"DX 11", caps_dx_11},
 220       {"OpenGL 2.1", caps_opengl_2_1},
 221 /*    {"OpenGL 3.0", caps_opengl_3_0},*/
 222       {"SM3", caps_sm3},
 223       {NULL, NULL}
 224    };
 225    int i, out = 0;
 226
 227    for (i = 0; list[i].name; i++) {
 228       if (util_check_caps_out(screen, list[i].list, &out)) {
 229          debug_printf("%s: %s yes\n", __FUNCTION__, list[i].name);
 230          continue;
 231       }
 232       switch (list[i].list[out]) {
 233       case UTIL_CAPS_CHECK_CAP:
 234          debug_printf("%s: %s no (cap %u not supported)\n", __FUNCTION__,
 235                       list[i].name,
 236                       list[i].list[out + 1]);
 237          break;
 238       case UTIL_CAPS_CHECK_INT:
 239          debug_printf("%s: %s no (cap %u less then %u)\n", __FUNCTION__,
 240                       list[i].name,
 241                       list[i].list[out + 1],
 242                       list[i].list[out + 2]);
 243          break;
 244       case UTIL_CAPS_CHECK_FLOAT:
 245          debug_printf("%s: %s no (cap %u less then %f)\n", __FUNCTION__,
 246                       list[i].name,
 247                       list[i].list[out + 1],
 248                       (double)(int)list[i].list[out + 2]);
 249          break;
 250       case UTIL_CAPS_CHECK_FORMAT:
 251          debug_printf("%s: %s no (format %s not supported)\n", __FUNCTION__,
 252                       list[i].name,
 253                       util_format_name(list[i].list[out + 1]) + 12);
 254          break;
 255       case UTIL_CAPS_CHECK_UNIMPLEMENTED:
 256          debug_printf("%s: %s no (not implemented in gallium or state tracker)\n",
 257                       __FUNCTION__, list[i].name);
 258          break;
 259       default:
 260             assert(!"Unsupported check");
 261       }
 262    }
 263 }