src/mesa/es/main/get_gen.py

   1 #!/usr/bin/env python
   2
   3 # Mesa 3-D graphics library
   4 #
   5 # Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining a
   8 # copy of this software and associated documentation files (the "Software"),
   9 # to deal in the Software without restriction, including without limitation
  10 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11 # and/or sell copies of the Software, and to permit persons to whom the
  12 # Software is furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be included
  15 # in all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20 # BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23
  24
  25 # This script is used to generate the get.c file:
  26 # python get_gen.py > get.c
  27
  28
  29 import string
  30 import sys
  31
  32
  33 GLint = 1
  34 GLenum = 2
  35 GLfloat = 3
  36 GLdouble = 4
  37 GLboolean = 5
  38 GLfloatN = 6    # A normalized value, such as a color or depth range
  39 GLfixed = 7
  40
  41
  42 TypeStrings = {
  43         GLint : "GLint",
  44         GLenum : "GLenum",
  45         GLfloat : "GLfloat",
  46         GLdouble : "GLdouble",
  47         GLboolean : "GLboolean",
  48         GLfixed : "GLfixed"
  49 }
  50
  51
  52 # Each entry is a tuple of:
  53 #  - the GL state name, such as GL_CURRENT_COLOR
  54 #  - the state datatype, one of GLint, GLfloat, GLboolean or GLenum
  55 #  - list of code fragments to get the state, such as ["ctx->Foo.Bar"]
  56 #  - optional extra code or empty string
  57 #  - optional extensions to check, or None
  58 #
  59
  60 # Present in ES 1.x and 2.x:
  61 StateVars_common = [
  62         ( "GL_ALPHA_BITS", GLint, ["ctx->DrawBuffer->Visual.alphaBits"],
  63           "", None ),
  64         ( "GL_BLEND", GLboolean, ["ctx->Color.BlendEnabled"], "", None ),
  65         ( "GL_BLEND_SRC", GLenum, ["ctx->Color.BlendSrcRGB"], "", None ),
  66         ( "GL_BLUE_BITS", GLint, ["ctx->DrawBuffer->Visual.blueBits"], "", None ),
  67         ( "GL_COLOR_CLEAR_VALUE", GLfloatN,
  68           [ "ctx->Color.ClearColor[0]",
  69                 "ctx->Color.ClearColor[1]",
  70                 "ctx->Color.ClearColor[2]",
  71                 "ctx->Color.ClearColor[3]" ], "", None ),
  72         ( "GL_COLOR_WRITEMASK", GLint,
  73           [ "ctx->Color.ColorMask[RCOMP] ? 1 : 0",
  74                 "ctx->Color.ColorMask[GCOMP] ? 1 : 0",
  75                 "ctx->Color.ColorMask[BCOMP] ? 1 : 0",
  76                 "ctx->Color.ColorMask[ACOMP] ? 1 : 0" ], "", None ),
  77         ( "GL_CULL_FACE", GLboolean, ["ctx->Polygon.CullFlag"], "", None ),
  78         ( "GL_CULL_FACE_MODE", GLenum, ["ctx->Polygon.CullFaceMode"], "", None ),
  79         ( "GL_DEPTH_BITS", GLint, ["ctx->DrawBuffer->Visual.depthBits"],
  80           "", None ),
  81         ( "GL_DEPTH_CLEAR_VALUE", GLfloatN, ["ctx->Depth.Clear"], "", None ),
  82         ( "GL_DEPTH_FUNC", GLenum, ["ctx->Depth.Func"], "", None ),
  83         ( "GL_DEPTH_RANGE", GLfloatN,
  84           [ "ctx->Viewport.Near", "ctx->Viewport.Far" ], "", None ),
  85         ( "GL_DEPTH_TEST", GLboolean, ["ctx->Depth.Test"], "", None ),
  86         ( "GL_DEPTH_WRITEMASK", GLboolean, ["ctx->Depth.Mask"], "", None ),
  87         ( "GL_DITHER", GLboolean, ["ctx->Color.DitherFlag"], "", None ),
  88         ( "GL_FRONT_FACE", GLenum, ["ctx->Polygon.FrontFace"], "", None ),
  89         ( "GL_GREEN_BITS", GLint, ["ctx->DrawBuffer->Visual.greenBits"],
  90           "", None ),
  91         ( "GL_LINE_WIDTH", GLfloat, ["ctx->Line.Width"], "", None ),
  92         ( "GL_ALIASED_LINE_WIDTH_RANGE", GLfloat,
  93           ["ctx->Const.MinLineWidth",
  94            "ctx->Const.MaxLineWidth"], "", None ),
  95         ( "GL_MAX_ELEMENTS_INDICES", GLint, ["ctx->Const.MaxArrayLockSize"], "", None ),
  96         ( "GL_MAX_ELEMENTS_VERTICES", GLint, ["ctx->Const.MaxArrayLockSize"], "", None ),
  97
  98         ( "GL_MAX_TEXTURE_SIZE", GLint, ["1 << (ctx->Const.MaxTextureLevels - 1)"], "", None ),
  99         ( "GL_MAX_VIEWPORT_DIMS", GLint,
 100           ["ctx->Const.MaxViewportWidth", "ctx->Const.MaxViewportHeight"],
 101           "", None ),
 102         ( "GL_PACK_ALIGNMENT", GLint, ["ctx->Pack.Alignment"], "", None ),
 103         ( "GL_ALIASED_POINT_SIZE_RANGE", GLfloat,
 104           ["ctx->Const.MinPointSize",
 105            "ctx->Const.MaxPointSize"], "", None ),
 106         ( "GL_POLYGON_OFFSET_FACTOR", GLfloat, ["ctx->Polygon.OffsetFactor "], "", None ),
 107         ( "GL_POLYGON_OFFSET_UNITS", GLfloat, ["ctx->Polygon.OffsetUnits "], "", None ),
 108         ( "GL_RED_BITS", GLint, ["ctx->DrawBuffer->Visual.redBits"], "", None ),
 109         ( "GL_SCISSOR_BOX", GLint,
 110           ["ctx->Scissor.X",
 111            "ctx->Scissor.Y",
 112            "ctx->Scissor.Width",
 113            "ctx->Scissor.Height"], "", None ),
 114         ( "GL_SCISSOR_TEST", GLboolean, ["ctx->Scissor.Enabled"], "", None ),
 115         ( "GL_STENCIL_BITS", GLint, ["ctx->DrawBuffer->Visual.stencilBits"], "", None ),
 116         ( "GL_STENCIL_CLEAR_VALUE", GLint, ["ctx->Stencil.Clear"], "", None ),
 117         ( "GL_STENCIL_FAIL", GLenum,
 118           ["ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace]"], "", None ),
 119         ( "GL_STENCIL_FUNC", GLenum,
 120           ["ctx->Stencil.Function[ctx->Stencil.ActiveFace]"], "", None ),
 121         ( "GL_STENCIL_PASS_DEPTH_FAIL", GLenum,
 122           ["ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace]"], "", None ),
 123         ( "GL_STENCIL_PASS_DEPTH_PASS", GLenum,
 124           ["ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace]"], "", None ),
 125         ( "GL_STENCIL_REF", GLint,
 126           ["ctx->Stencil.Ref[ctx->Stencil.ActiveFace]"], "", None ),
 127         ( "GL_STENCIL_TEST", GLboolean, ["ctx->Stencil.Enabled"], "", None ),
 128         ( "GL_STENCIL_VALUE_MASK", GLint,
 129           ["ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace]"], "", None ),
 130         ( "GL_STENCIL_WRITEMASK", GLint,
 131           ["ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace]"], "", None ),
 132         ( "GL_SUBPIXEL_BITS", GLint, ["ctx->Const.SubPixelBits"], "", None ),
 133         ( "GL_TEXTURE_BINDING_2D", GLint,
 134           ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_INDEX]->Name"], "", None ),
 135         ( "GL_UNPACK_ALIGNMENT", GLint, ["ctx->Unpack.Alignment"], "", None ),
 136         ( "GL_VIEWPORT", GLint, [ "ctx->Viewport.X", "ctx->Viewport.Y",
 137           "ctx->Viewport.Width", "ctx->Viewport.Height" ], "", None ),
 138
 139         # GL_ARB_multitexture
 140         ( "GL_ACTIVE_TEXTURE_ARB", GLint,
 141           [ "GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit"], "", ["ARB_multitexture"] ),
 142
 143         # Note that all the OES_* extensions require that the Mesa
 144         # "struct gl_extensions" include a member with the name of
 145         # the extension.  That structure does not yet include OES
 146         # extensions (and we're not sure whether it will).  If
 147         # it does, all the OES_* extensions below should mark the
 148         # dependency.
 149
 150         # OES_texture_cube_map
 151         ( "GL_TEXTURE_BINDING_CUBE_MAP_ARB", GLint,
 152           ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_CUBE_INDEX]->Name"],
 153           "", None),
 154         ( "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB", GLint,
 155           ["(1 << (ctx->Const.MaxCubeTextureLevels - 1))"],
 156           "", None),
 157
 158         # OES_blend_subtract
 159         ( "GL_BLEND_SRC_RGB_EXT", GLenum, ["ctx->Color.BlendSrcRGB"], "", None),
 160         ( "GL_BLEND_DST_RGB_EXT", GLenum, ["ctx->Color.BlendDstRGB"], "", None),
 161         ( "GL_BLEND_SRC_ALPHA_EXT", GLenum, ["ctx->Color.BlendSrcA"], "", None),
 162         ( "GL_BLEND_DST_ALPHA_EXT", GLenum, ["ctx->Color.BlendDstA"], "", None),
 163
 164         # GL_BLEND_EQUATION_RGB, which is what we're really after,
 165         # is defined identically to GL_BLEND_EQUATION.
 166         ( "GL_BLEND_EQUATION", GLenum, ["ctx->Color.BlendEquationRGB "], "", None),
 167         ( "GL_BLEND_EQUATION_ALPHA_EXT", GLenum, ["ctx->Color.BlendEquationA "],
 168           "", None),
 169
 170         # GL_ARB_texture_compression */
 171 #       ( "GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB", GLint,
 172 #         ["_mesa_get_compressed_formats(ctx, NULL, GL_FALSE)"],
 173 #         "", ["ARB_texture_compression"] ),
 174 #       ( "GL_COMPRESSED_TEXTURE_FORMATS_ARB", GLenum,
 175 #         [],
 176 #         """GLint formats[100];
 177 #         GLuint i, n = _mesa_get_compressed_formats(ctx, formats, GL_FALSE);
 178 #         ASSERT(n <= 100);
 179 #         for (i = 0; i < n; i++)
 180 #            params[i] = ENUM_TO_INT(formats[i]);""",
 181 #         ["ARB_texture_compression"] ),
 182
 183         # GL_ARB_multisample
 184         ( "GL_SAMPLE_ALPHA_TO_COVERAGE_ARB", GLboolean,
 185           ["ctx->Multisample.SampleAlphaToCoverage"], "", ["ARB_multisample"] ),
 186         ( "GL_SAMPLE_COVERAGE_ARB", GLboolean,
 187           ["ctx->Multisample.SampleCoverage"], "", ["ARB_multisample"] ),
 188         ( "GL_SAMPLE_COVERAGE_VALUE_ARB", GLfloat,
 189           ["ctx->Multisample.SampleCoverageValue"], "", ["ARB_multisample"] ),
 190         ( "GL_SAMPLE_COVERAGE_INVERT_ARB", GLboolean,
 191           ["ctx->Multisample.SampleCoverageInvert"], "", ["ARB_multisample"] ),
 192         ( "GL_SAMPLE_BUFFERS_ARB", GLint,
 193           ["ctx->DrawBuffer->Visual.sampleBuffers"], "", ["ARB_multisample"] ),
 194         ( "GL_SAMPLES_ARB", GLint,
 195           ["ctx->DrawBuffer->Visual.samples"], "", ["ARB_multisample"] ),
 196
 197
 198         # GL_SGIS_generate_mipmap
 199         ( "GL_GENERATE_MIPMAP_HINT_SGIS", GLenum, ["ctx->Hint.GenerateMipmap"],
 200           "", ["SGIS_generate_mipmap"] ),
 201
 202         # GL_ARB_vertex_buffer_object
 203         ( "GL_ARRAY_BUFFER_BINDING_ARB", GLint,
 204           ["ctx->Array.ArrayBufferObj->Name"], "", ["ARB_vertex_buffer_object"] ),
 205         # GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported
 206         ( "GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB", GLint,
 207           ["ctx->Array.ElementArrayBufferObj->Name"],
 208           "", ["ARB_vertex_buffer_object"] ),
 209
 210         # GL_OES_read_format
 211         ( "GL_IMPLEMENTATION_COLOR_READ_TYPE_OES", GLint,
 212           ["ctx->Const.ColorReadType"], "", None),
 213         ( "GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES", GLint,
 214           ["ctx->Const.ColorReadFormat"], "", None),
 215
 216         # GL_OES_framebuffer_object
 217         ( "GL_FRAMEBUFFER_BINDING_EXT", GLint, ["ctx->DrawBuffer->Name"], "",
 218           None),
 219         ( "GL_RENDERBUFFER_BINDING_EXT", GLint,
 220           ["ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0"], "",
 221           None),
 222         ( "GL_MAX_RENDERBUFFER_SIZE_EXT", GLint,
 223           ["ctx->Const.MaxRenderbufferSize"], "",
 224           None),
 225
 226         # OpenGL ES 1/2 special:
 227         ( "GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB", GLint,
 228           [ "ARRAY_SIZE(compressed_formats)" ],
 229           "",
 230           None ),
 231
 232         ("GL_COMPRESSED_TEXTURE_FORMATS_ARB", GLint,
 233          [],
 234          """
 235      int i;
 236      for (i = 0; i < ARRAY_SIZE(compressed_formats); i++) {
 237         params[i] = compressed_formats[i];
 238      }""",
 239          None ),
 240
 241         ( "GL_POLYGON_OFFSET_FILL", GLboolean, ["ctx->Polygon.OffsetFill"], "", None ),
 242
 243 ]
 244
 245 # Only present in ES 1.x:
 246 StateVars_es1 = [
 247         ( "GL_MAX_LIGHTS", GLint, ["ctx->Const.MaxLights"], "", None ),
 248         ( "GL_LIGHT0", GLboolean, ["ctx->Light.Light[0].Enabled"], "", None ),
 249         ( "GL_LIGHT1", GLboolean, ["ctx->Light.Light[1].Enabled"], "", None ),
 250         ( "GL_LIGHT2", GLboolean, ["ctx->Light.Light[2].Enabled"], "", None ),
 251         ( "GL_LIGHT3", GLboolean, ["ctx->Light.Light[3].Enabled"], "", None ),
 252         ( "GL_LIGHT4", GLboolean, ["ctx->Light.Light[4].Enabled"], "", None ),
 253         ( "GL_LIGHT5", GLboolean, ["ctx->Light.Light[5].Enabled"], "", None ),
 254         ( "GL_LIGHT6", GLboolean, ["ctx->Light.Light[6].Enabled"], "", None ),
 255         ( "GL_LIGHT7", GLboolean, ["ctx->Light.Light[7].Enabled"], "", None ),
 256         ( "GL_LIGHTING", GLboolean, ["ctx->Light.Enabled"], "", None ),
 257         ( "GL_LIGHT_MODEL_AMBIENT", GLfloatN,
 258           ["ctx->Light.Model.Ambient[0]",
 259            "ctx->Light.Model.Ambient[1]",
 260            "ctx->Light.Model.Ambient[2]",
 261            "ctx->Light.Model.Ambient[3]"], "", None ),
 262         ( "GL_LIGHT_MODEL_TWO_SIDE", GLboolean, ["ctx->Light.Model.TwoSide"], "", None ),
 263         ( "GL_ALPHA_TEST", GLboolean, ["ctx->Color.AlphaEnabled"], "", None ),
 264         ( "GL_ALPHA_TEST_FUNC", GLenum, ["ctx->Color.AlphaFunc"], "", None ),
 265         ( "GL_ALPHA_TEST_REF", GLfloatN, ["ctx->Color.AlphaRef"], "", None ),
 266         ( "GL_BLEND_DST", GLenum, ["ctx->Color.BlendDstRGB"], "", None ),
 267         ( "GL_MAX_CLIP_PLANES", GLint, ["ctx->Const.MaxClipPlanes"], "", None ),
 268         ( "GL_CLIP_PLANE0", GLboolean,
 269           [ "(ctx->Transform.ClipPlanesEnabled >> 0) & 1" ], "", None ),
 270         ( "GL_CLIP_PLANE1", GLboolean,
 271           [ "(ctx->Transform.ClipPlanesEnabled >> 1) & 1" ], "", None ),
 272         ( "GL_CLIP_PLANE2", GLboolean,
 273           [ "(ctx->Transform.ClipPlanesEnabled >> 2) & 1" ], "", None ),
 274         ( "GL_CLIP_PLANE3", GLboolean,
 275           [ "(ctx->Transform.ClipPlanesEnabled >> 3) & 1" ], "", None ),
 276         ( "GL_CLIP_PLANE4", GLboolean,
 277           [ "(ctx->Transform.ClipPlanesEnabled >> 4) & 1" ], "", None ),
 278         ( "GL_CLIP_PLANE5", GLboolean,
 279           [ "(ctx->Transform.ClipPlanesEnabled >> 5) & 1" ], "", None ),
 280         ( "GL_COLOR_MATERIAL", GLboolean,
 281           ["ctx->Light.ColorMaterialEnabled"], "", None ),
 282         ( "GL_CURRENT_COLOR", GLfloatN,
 283           [ "ctx->Current.Attrib[VERT_ATTRIB_COLOR0][0]",
 284                 "ctx->Current.Attrib[VERT_ATTRIB_COLOR0][1]",
 285                 "ctx->Current.Attrib[VERT_ATTRIB_COLOR0][2]",
 286                 "ctx->Current.Attrib[VERT_ATTRIB_COLOR0][3]" ],
 287           "FLUSH_CURRENT(ctx, 0);", None ),
 288         ( "GL_CURRENT_NORMAL", GLfloatN,
 289           [ "ctx->Current.Attrib[VERT_ATTRIB_NORMAL][0]",
 290                 "ctx->Current.Attrib[VERT_ATTRIB_NORMAL][1]",
 291                 "ctx->Current.Attrib[VERT_ATTRIB_NORMAL][2]"],
 292           "FLUSH_CURRENT(ctx, 0);", None ),
 293         ( "GL_CURRENT_TEXTURE_COORDS", GLfloat,
 294           ["ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texUnit][0]",
 295            "ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texUnit][1]",
 296            "ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texUnit][2]",
 297            "ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texUnit][3]"],
 298           "const GLuint texUnit = ctx->Texture.CurrentUnit;", None ),
 299         ( "GL_DISTANCE_ATTENUATION_EXT", GLfloat,
 300           ["ctx->Point.Params[0]",
 301            "ctx->Point.Params[1]",
 302            "ctx->Point.Params[2]"], "", None ),
 303         ( "GL_FOG", GLboolean, ["ctx->Fog.Enabled"], "", None ),
 304         ( "GL_FOG_COLOR", GLfloatN,
 305           [ "ctx->Fog.Color[0]",
 306                 "ctx->Fog.Color[1]",
 307                 "ctx->Fog.Color[2]",
 308                 "ctx->Fog.Color[3]" ], "", None ),
 309         ( "GL_FOG_DENSITY", GLfloat, ["ctx->Fog.Density"], "", None ),
 310         ( "GL_FOG_END", GLfloat, ["ctx->Fog.End"], "", None ),
 311         ( "GL_FOG_HINT", GLenum, ["ctx->Hint.Fog"], "", None ),
 312         ( "GL_FOG_MODE", GLenum, ["ctx->Fog.Mode"], "", None ),
 313         ( "GL_FOG_START", GLfloat, ["ctx->Fog.Start"], "", None ),
 314         ( "GL_LINE_SMOOTH", GLboolean, ["ctx->Line.SmoothFlag"], "", None ),
 315         ( "GL_LINE_SMOOTH_HINT", GLenum, ["ctx->Hint.LineSmooth"], "", None ),
 316         ( "GL_LINE_WIDTH_RANGE", GLfloat,
 317           ["ctx->Const.MinLineWidthAA",
 318            "ctx->Const.MaxLineWidthAA"], "", None ),
 319         ( "GL_COLOR_LOGIC_OP", GLboolean, ["ctx->Color.ColorLogicOpEnabled"], "", None ),
 320         ( "GL_LOGIC_OP_MODE", GLenum, ["ctx->Color.LogicOp"], "", None ),
 321         ( "GL_MATRIX_MODE", GLenum, ["ctx->Transform.MatrixMode"], "", None ),
 322
 323         ( "GL_MAX_MODELVIEW_STACK_DEPTH", GLint, ["MAX_MODELVIEW_STACK_DEPTH"], "", None ),
 324         ( "GL_MAX_PROJECTION_STACK_DEPTH", GLint, ["MAX_PROJECTION_STACK_DEPTH"], "", None ),
 325         ( "GL_MAX_TEXTURE_STACK_DEPTH", GLint, ["MAX_TEXTURE_STACK_DEPTH"], "", None ),
 326         ( "GL_MODELVIEW_MATRIX", GLfloat,
 327           [ "matrix[0]", "matrix[1]", "matrix[2]", "matrix[3]",
 328                 "matrix[4]", "matrix[5]", "matrix[6]", "matrix[7]",
 329                 "matrix[8]", "matrix[9]", "matrix[10]", "matrix[11]",
 330                 "matrix[12]", "matrix[13]", "matrix[14]", "matrix[15]" ],
 331           "const GLfloat *matrix = ctx->ModelviewMatrixStack.Top->m;", None ),
 332         ( "GL_MODELVIEW_STACK_DEPTH", GLint, ["ctx->ModelviewMatrixStack.Depth + 1"], "", None ),
 333         ( "GL_NORMALIZE", GLboolean, ["ctx->Transform.Normalize"], "", None ),
 334         ( "GL_PACK_SKIP_IMAGES_EXT", GLint, ["ctx->Pack.SkipImages"], "", None ),
 335         ( "GL_PERSPECTIVE_CORRECTION_HINT", GLenum,
 336           ["ctx->Hint.PerspectiveCorrection"], "", None ),
 337         ( "GL_POINT_SIZE", GLfloat, ["ctx->Point.Size"], "", None ),
 338         ( "GL_POINT_SIZE_RANGE", GLfloat,
 339           ["ctx->Const.MinPointSizeAA",
 340            "ctx->Const.MaxPointSizeAA"], "", None ),
 341         ( "GL_POINT_SMOOTH", GLboolean, ["ctx->Point.SmoothFlag"], "", None ),
 342         ( "GL_POINT_SMOOTH_HINT", GLenum, ["ctx->Hint.PointSmooth"], "", None ),
 343         ( "GL_POINT_SIZE_MIN_EXT", GLfloat, ["ctx->Point.MinSize"], "", None ),
 344         ( "GL_POINT_SIZE_MAX_EXT", GLfloat, ["ctx->Point.MaxSize"], "", None ),
 345         ( "GL_POINT_FADE_THRESHOLD_SIZE_EXT", GLfloat,
 346           ["ctx->Point.Threshold"], "", None ),
 347         ( "GL_PROJECTION_MATRIX", GLfloat,
 348           [ "matrix[0]", "matrix[1]", "matrix[2]", "matrix[3]",
 349                 "matrix[4]", "matrix[5]", "matrix[6]", "matrix[7]",
 350                 "matrix[8]", "matrix[9]", "matrix[10]", "matrix[11]",
 351                 "matrix[12]", "matrix[13]", "matrix[14]", "matrix[15]" ],
 352           "const GLfloat *matrix = ctx->ProjectionMatrixStack.Top->m;", None ),
 353         ( "GL_PROJECTION_STACK_DEPTH", GLint,
 354           ["ctx->ProjectionMatrixStack.Depth + 1"], "", None ),
 355         ( "GL_RESCALE_NORMAL", GLboolean,
 356           ["ctx->Transform.RescaleNormals"], "", None ),
 357         ( "GL_SHADE_MODEL", GLenum, ["ctx->Light.ShadeModel"], "", None ),
 358         ( "GL_TEXTURE_2D", GLboolean, ["_mesa_IsEnabled(GL_TEXTURE_2D)"], "", None ),
 359         ( "GL_TEXTURE_MATRIX", GLfloat,
 360           ["matrix[0]", "matrix[1]", "matrix[2]", "matrix[3]",
 361            "matrix[4]", "matrix[5]", "matrix[6]", "matrix[7]",
 362            "matrix[8]", "matrix[9]", "matrix[10]", "matrix[11]",
 363            "matrix[12]", "matrix[13]", "matrix[14]", "matrix[15]" ],
 364           "const GLfloat *matrix = ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Top->m;", None ),
 365         ( "GL_TEXTURE_STACK_DEPTH", GLint,
 366           ["ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Depth + 1"], "", None ),
 367         ( "GL_VERTEX_ARRAY", GLboolean, ["ctx->Array.ArrayObj->Vertex.Enabled"], "", None ),
 368         ( "GL_VERTEX_ARRAY_SIZE", GLint, ["ctx->Array.ArrayObj->Vertex.Size"], "", None ),
 369         ( "GL_VERTEX_ARRAY_TYPE", GLenum, ["ctx->Array.ArrayObj->Vertex.Type"], "", None ),
 370         ( "GL_VERTEX_ARRAY_STRIDE", GLint, ["ctx->Array.ArrayObj->Vertex.Stride"], "", None ),
 371         ( "GL_NORMAL_ARRAY", GLenum, ["ctx->Array.ArrayObj->Normal.Enabled"], "", None ),
 372         ( "GL_NORMAL_ARRAY_TYPE", GLenum, ["ctx->Array.ArrayObj->Normal.Type"], "", None ),
 373         ( "GL_NORMAL_ARRAY_STRIDE", GLint, ["ctx->Array.ArrayObj->Normal.Stride"], "", None ),
 374         ( "GL_COLOR_ARRAY", GLboolean, ["ctx->Array.ArrayObj->Color.Enabled"], "", None ),
 375         ( "GL_COLOR_ARRAY_SIZE", GLint, ["ctx->Array.ArrayObj->Color.Size"], "", None ),
 376         ( "GL_COLOR_ARRAY_TYPE", GLenum, ["ctx->Array.ArrayObj->Color.Type"], "", None ),
 377         ( "GL_COLOR_ARRAY_STRIDE", GLint, ["ctx->Array.ArrayObj->Color.Stride"], "", None ),
 378         ( "GL_TEXTURE_COORD_ARRAY", GLboolean,
 379           ["ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled"], "", None ),
 380         ( "GL_TEXTURE_COORD_ARRAY_SIZE", GLint,
 381           ["ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Size"], "", None ),
 382         ( "GL_TEXTURE_COORD_ARRAY_TYPE", GLenum,
 383           ["ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Type"], "", None ),
 384         ( "GL_TEXTURE_COORD_ARRAY_STRIDE", GLint,
 385           ["ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Stride"], "", None ),
 386         # GL_ARB_multitexture
 387         ( "GL_MAX_TEXTURE_UNITS_ARB", GLint,
 388           ["ctx->Const.MaxTextureUnits"], "", ["ARB_multitexture"] ),
 389         ( "GL_CLIENT_ACTIVE_TEXTURE_ARB", GLint,
 390           ["GL_TEXTURE0_ARB + ctx->Array.ActiveTexture"], "", ["ARB_multitexture"] ),
 391         # OES_texture_cube_map
 392         ( "GL_TEXTURE_CUBE_MAP_ARB", GLboolean,
 393           ["_mesa_IsEnabled(GL_TEXTURE_CUBE_MAP_ARB)"], "", None),
 394         ( "GL_TEXTURE_GEN_S", GLboolean,
 395           ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0)"], "", None),
 396         ( "GL_TEXTURE_GEN_T", GLboolean,
 397           ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & T_BIT) ? 1 : 0)"], "", None),
 398         ( "GL_TEXTURE_GEN_R", GLboolean,
 399           ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & R_BIT) ? 1 : 0)"], "", None),
 400         # ARB_multisample
 401         ( "GL_MULTISAMPLE_ARB", GLboolean,
 402           ["ctx->Multisample.Enabled"], "", ["ARB_multisample"] ),
 403         ( "GL_SAMPLE_ALPHA_TO_ONE_ARB", GLboolean,
 404           ["ctx->Multisample.SampleAlphaToOne"], "", ["ARB_multisample"] ),
 405
 406         ( "GL_VERTEX_ARRAY_BUFFER_BINDING_ARB", GLint,
 407           ["ctx->Array.ArrayObj->Vertex.BufferObj->Name"], "", ["ARB_vertex_buffer_object"] ),
 408         ( "GL_NORMAL_ARRAY_BUFFER_BINDING_ARB", GLint,
 409           ["ctx->Array.ArrayObj->Normal.BufferObj->Name"], "", ["ARB_vertex_buffer_object"] ),
 410         ( "GL_COLOR_ARRAY_BUFFER_BINDING_ARB", GLint,
 411           ["ctx->Array.ArrayObj->Color.BufferObj->Name"], "", ["ARB_vertex_buffer_object"] ),
 412         ( "GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB", GLint,
 413           ["ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name"],
 414           "", ["ARB_vertex_buffer_object"] ),
 415
 416         # OES_point_sprite
 417         ( "GL_POINT_SPRITE_NV", GLboolean, ["ctx->Point.PointSprite"], # == GL_POINT_SPRITE_ARB
 418           "", None),
 419
 420         # GL_ARB_fragment_shader
 421         ( "GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB", GLint,
 422           ["ctx->Const.FragmentProgram.MaxUniformComponents"], "",
 423           ["ARB_fragment_shader"] ),
 424
 425         # GL_ARB_vertex_shader
 426         ( "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB", GLint,
 427           ["ctx->Const.VertexProgram.MaxUniformComponents"], "",
 428           ["ARB_vertex_shader"] ),
 429         ( "GL_MAX_VARYING_FLOATS_ARB", GLint,
 430           ["ctx->Const.MaxVarying * 4"], "", ["ARB_vertex_shader"] ),
 431
 432         # OES_matrix_get
 433         ( "GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES", GLint, [],
 434           """
 435       /* See GL_OES_matrix_get */
 436       {
 437          const GLfloat *matrix = ctx->ModelviewMatrixStack.Top->m;
 438          memcpy(params, matrix, 16 * sizeof(GLint));
 439       }""",
 440           None),
 441
 442         ( "GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES", GLint, [],
 443           """
 444       /* See GL_OES_matrix_get */
 445       {
 446          const GLfloat *matrix = ctx->ProjectionMatrixStack.Top->m;
 447          memcpy(params, matrix, 16 * sizeof(GLint));
 448       }""",
 449           None),
 450
 451         ( "GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES", GLint, [],
 452           """
 453       /* See GL_OES_matrix_get */
 454       {
 455          const GLfloat *matrix =
 456             ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Top->m;
 457          memcpy(params, matrix, 16 * sizeof(GLint));
 458       }""",
 459           None),
 460
 461         # OES_point_size_array
 462         ("GL_POINT_SIZE_ARRAY_OES", GLboolean,
 463          ["ctx->Array.ArrayObj->PointSize.Enabled"], "", None),
 464         ("GL_POINT_SIZE_ARRAY_TYPE_OES", GLenum,
 465       ["ctx->Array.ArrayObj->PointSize.Type"], "", None),
 466         ("GL_POINT_SIZE_ARRAY_STRIDE_OES", GLint,
 467          ["ctx->Array.ArrayObj->PointSize.Stride"], "", None),
 468         ("GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES", GLint,
 469          ["ctx->Array.ArrayObj->PointSize.BufferObj->Name"], "", None),
 470
 471         # GL_EXT_texture_filter_anisotropic
 472         ( "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT", GLfloat,
 473           ["ctx->Const.MaxTextureMaxAnisotropy"], "", ["EXT_texture_filter_anisotropic"]),
 474
 475 ]
 476
 477 # Only present in ES 2.x:
 478 StateVars_es2 = [
 479         # XXX These entries are not spec'ed for GLES 2, but are
 480         #     needed for Mesa's GLSL:
 481         ( "GL_MAX_LIGHTS", GLint, ["ctx->Const.MaxLights"], "", None ),
 482         ( "GL_MAX_CLIP_PLANES", GLint, ["ctx->Const.MaxClipPlanes"], "", None ),
 483         ( "GL_MAX_TEXTURE_COORDS_ARB", GLint, # == GL_MAX_TEXTURE_COORDS_NV
 484           ["ctx->Const.MaxTextureCoordUnits"], "",
 485           ["ARB_fragment_program", "NV_fragment_program"] ),
 486         ( "GL_MAX_DRAW_BUFFERS_ARB", GLint,
 487           ["ctx->Const.MaxDrawBuffers"], "", ["ARB_draw_buffers"] ),
 488         ( "GL_BLEND_COLOR_EXT", GLfloatN,
 489           [ "ctx->Color.BlendColor[0]",
 490                 "ctx->Color.BlendColor[1]",
 491                 "ctx->Color.BlendColor[2]",
 492                 "ctx->Color.BlendColor[3]"], "", None ),
 493
 494         # This is required for GLES2, but also needed for GLSL:
 495         ( "GL_MAX_TEXTURE_IMAGE_UNITS_ARB", GLint, # == GL_MAX_TEXTURE_IMAGE_UNI
 496           ["ctx->Const.MaxTextureImageUnits"], "",
 497           ["ARB_fragment_program", "NV_fragment_program"] ),
 498
 499         ( "GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB", GLint,
 500           ["ctx->Const.MaxVertexTextureImageUnits"], "", ["ARB_vertex_shader"] ),
 501         ( "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB", GLint,
 502           ["MAX_COMBINED_TEXTURE_IMAGE_UNITS"], "", ["ARB_vertex_shader"] ),
 503
 504         # GL_ARB_shader_objects
 505         # Actually, this token isn't part of GL_ARB_shader_objects, but is
 506         # close enough for now.
 507         ( "GL_CURRENT_PROGRAM", GLint,
 508           ["ctx->Shader.CurrentProgram ? ctx->Shader.CurrentProgram->Name : 0"],
 509           "", ["ARB_shader_objects"] ),
 510
 511         # OpenGL 2.0
 512         ( "GL_STENCIL_BACK_FUNC", GLenum, ["ctx->Stencil.Function[1]"], "", None ),
 513         ( "GL_STENCIL_BACK_VALUE_MASK", GLint, ["ctx->Stencil.ValueMask[1]"], "", None ),
 514         ( "GL_STENCIL_BACK_WRITEMASK", GLint, ["ctx->Stencil.WriteMask[1]"], "", None ),
 515         ( "GL_STENCIL_BACK_REF", GLint, ["ctx->Stencil.Ref[1]"], "", None ),
 516         ( "GL_STENCIL_BACK_FAIL", GLenum, ["ctx->Stencil.FailFunc[1]"], "", None ),
 517         ( "GL_STENCIL_BACK_PASS_DEPTH_FAIL", GLenum, ["ctx->Stencil.ZFailFunc[1]"], "", None ),
 518         ( "GL_STENCIL_BACK_PASS_DEPTH_PASS", GLenum, ["ctx->Stencil.ZPassFunc[1]"], "", None ),
 519
 520         ( "GL_MAX_VERTEX_ATTRIBS_ARB", GLint,
 521           ["ctx->Const.VertexProgram.MaxAttribs"], "", ["ARB_vertex_program"] ),
 522
 523         # OES_texture_3D
 524         ( "GL_TEXTURE_BINDING_3D", GLint,
 525           ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_3D_INDEX]->Name"], "", None),
 526         ( "GL_MAX_3D_TEXTURE_SIZE", GLint, ["1 << (ctx->Const.Max3DTextureLevels - 1)"], "", None),
 527
 528         # OES_standard_derivatives
 529         ( "GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB", GLenum,
 530           ["ctx->Hint.FragmentShaderDerivative"], "", ["ARB_fragment_shader"] ),
 531
 532         # Unique to ES 2 (not in full GL)
 533         ( "GL_MAX_FRAGMENT_UNIFORM_VECTORS", GLint,
 534           ["ctx->Const.FragmentProgram.MaxUniformComponents / 4"], "", None),
 535         ( "GL_MAX_VARYING_VECTORS", GLint,
 536           ["ctx->Const.MaxVarying"], "", None),
 537         ( "GL_MAX_VERTEX_UNIFORM_VECTORS", GLint,
 538           ["ctx->Const.VertexProgram.MaxUniformComponents / 4"], "", None),
 539         ( "GL_SHADER_COMPILER", GLint, ["1"], "", None),
 540         # OES_get_program_binary
 541         ( "GL_NUM_SHADER_BINARY_FORMATS", GLint, ["0"], "", None),
 542         ( "GL_SHADER_BINARY_FORMATS", GLint, [], "", None),
 543 ]
 544
 545
 546
 547 def ConversionFunc(fromType, toType):
 548         """Return the name of the macro to convert between two data types."""
 549         if fromType == toType:
 550                 return ""
 551         elif fromType == GLfloat and toType == GLint:
 552                 return "IROUND"
 553         elif fromType == GLfloatN and toType == GLfloat:
 554                 return ""
 555         elif fromType == GLint and toType == GLfloat: # but not GLfloatN!
 556                 return "(GLfloat)"
 557         else:
 558                 if fromType == GLfloatN:
 559                         fromType = GLfloat
 560                 fromStr = TypeStrings[fromType]
 561                 fromStr = string.upper(fromStr[2:])
 562                 toStr = TypeStrings[toType]
 563                 toStr = string.upper(toStr[2:])
 564                 return fromStr + "_TO_" + toStr
 565
 566
 567 def EmitGetFunction(stateVars, returnType):
 568         """Emit the code to implement glGetBooleanv, glGetIntegerv or glGetFloatv."""
 569         assert (returnType == GLboolean or
 570                         returnType == GLint or
 571                         returnType == GLfloat or
 572                         returnType == GLfixed)
 573
 574         strType = TypeStrings[returnType]
 575         # Capitalize first letter of return type
 576         if returnType == GLint:
 577                 function = "_mesa_GetIntegerv"
 578         elif returnType == GLboolean:
 579                 function = "_mesa_GetBooleanv"
 580         elif returnType == GLfloat:
 581                 function = "_mesa_GetFloatv"
 582         elif returnType == GLfixed:
 583                 function = "_mesa_GetFixedv"
 584         else:
 585                 abort()
 586
 587         print "void GLAPIENTRY"
 588         print "%s( GLenum pname, %s *params )" % (function, strType)
 589         print "{"
 590         print "   GET_CURRENT_CONTEXT(ctx);"
 591         print "   ASSERT_OUTSIDE_BEGIN_END(ctx);"
 592         print ""
 593         print "   if (!params)"
 594         print "      return;"
 595         print ""
 596         print "   if (ctx->NewState)"
 597         print "      _mesa_update_state(ctx);"
 598         print ""
 599         print "   switch (pname) {"
 600
 601         for (name, varType, state, optionalCode, extensions) in stateVars:
 602                 print "      case " + name + ":"
 603                 if extensions:
 604                         if len(extensions) == 1:
 605                                 print ('         CHECK_EXT1(%s, "%s");' %
 606                                            (extensions[0], function))
 607                         elif len(extensions) == 2:
 608                                 print ('         CHECK_EXT2(%s, %s, "%s");' %
 609                                            (extensions[0], extensions[1], function))
 610                         elif len(extensions) == 3:
 611                                 print ('         CHECK_EXT3(%s, %s, %s, "%s");' %
 612                                            (extensions[0], extensions[1], extensions[2], function))
 613                         else:
 614                                 assert len(extensions) == 4
 615                                 print ('         CHECK_EXT4(%s, %s, %s, %s, "%s");' %
 616                                            (extensions[0], extensions[1], extensions[2], extensions[3], function))
 617                 if optionalCode:
 618                         print "         {"
 619                         print "         " + optionalCode
 620                 conversion = ConversionFunc(varType, returnType)
 621                 n = len(state)
 622                 for i in range(n):
 623                         if conversion:
 624                                 print "         params[%d] = %s(%s);" % (i, conversion, state[i])
 625                         else:
 626                                 print "         params[%d] = %s;" % (i, state[i])
 627                 if optionalCode:
 628                         print "         }"
 629                 print "         break;"
 630
 631         print "      default:"
 632         print '         _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(pname=0x%%x)", pname);' % function
 633         print "   }"
 634         print "}"
 635         print ""
 636         return
 637
 638
 639
 640 def EmitHeader():
 641         """Print the get.c file header."""
 642         print """
 643 /***
 644  ***  NOTE!!!  DO NOT EDIT THIS FILE!!!  IT IS GENERATED BY get_gen.py
 645  ***/
 646
 647 #include "main/glheader.h"
 648 #include "main/context.h"
 649 #include "main/enable.h"
 650 #include "main/extensions.h"
 651 #include "main/fbobject.h"
 652 #include "main/get.h"
 653 #include "main/macros.h"
 654 #include "main/mtypes.h"
 655 #include "main/state.h"
 656 #include "main/texcompress.h"
 657
 658
 659 /* ES1 tokens that should be in gl.h but aren't */
 660 #define GL_MAX_ELEMENTS_INDICES             0x80E9
 661 #define GL_MAX_ELEMENTS_VERTICES            0x80E8
 662
 663
 664 /* ES2 special tokens */
 665 #define GL_MAX_FRAGMENT_UNIFORM_VECTORS     0x8DFD
 666 #define GL_MAX_VARYING_VECTORS              0x8DFC
 667 #define GL_MAX_VARYING_VECTORS              0x8DFC
 668 #define GL_MAX_VERTEX_UNIFORM_VECTORS       0x8DFB
 669 #define GL_SHADER_COMPILER                  0x8DFA
 670 #define GL_PLATFORM_BINARY                  0x8D63
 671 #define GL_SHADER_BINARY_FORMATS            0x8DF8
 672 #define GL_NUM_SHADER_BINARY_FORMATS        0x8DF9
 673
 674
 675 #ifndef GL_OES_matrix_get
 676 #define GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES               0x898D
 677 #define GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES              0x898E
 678 #define GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES                 0x898F
 679 #endif
 680
 681 #ifndef GL_OES_compressed_paletted_texture
 682 #define GL_PALETTE4_RGB8_OES                                    0x8B90
 683 #define GL_PALETTE4_RGBA8_OES                                   0x8B91
 684 #define GL_PALETTE4_R5_G6_B5_OES                                0x8B92
 685 #define GL_PALETTE4_RGBA4_OES                                   0x8B93
 686 #define GL_PALETTE4_RGB5_A1_OES                                 0x8B94
 687 #define GL_PALETTE8_RGB8_OES                                    0x8B95
 688 #define GL_PALETTE8_RGBA8_OES                                   0x8B96
 689 #define GL_PALETTE8_R5_G6_B5_OES                                0x8B97
 690 #define GL_PALETTE8_RGBA4_OES                                   0x8B98
 691 #define GL_PALETTE8_RGB5_A1_OES                                 0x8B99
 692 #endif
 693
 694
 695 #define FLOAT_TO_BOOLEAN(X)   ( (X) ? GL_TRUE : GL_FALSE )
 696 #define FLOAT_TO_FIXED(F)     ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \\
 697                                 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \\
 698                                 (GLint) ((F) * 65536.0f) )
 699
 700 #define INT_TO_BOOLEAN(I)     ( (I) ? GL_TRUE : GL_FALSE )
 701 #define INT_TO_FIXED(I)       ( ((I) > SHRT_MAX) ? INT_MAX : \\
 702                                 ((I) < SHRT_MIN) ? INT_MIN : \\
 703                                 (GLint) ((I) * 65536) )
 704
 705 #define BOOLEAN_TO_INT(B)     ( (GLint) (B) )
 706 #define BOOLEAN_TO_FLOAT(B)   ( (B) ? 1.0F : 0.0F )
 707 #define BOOLEAN_TO_FIXED(B)   ( (GLint) ((B) ? 1 : 0) << 16 )
 708
 709 #define ENUM_TO_FIXED(E)      (E)
 710
 711
 712 /*
 713  * Check if named extension is enabled, if not generate error and return.
 714  */
 715 #define CHECK_EXT1(EXT1, FUNC)                                         \\
 716    if (!ctx->Extensions.EXT1) {                                        \\
 717       _mesa_error(ctx, GL_INVALID_ENUM, FUNC "(0x%x)", (int) pname);  \\
 718       return;                                                          \\
 719    }
 720
 721 /*
 722  * Check if either of two extensions is enabled.
 723  */
 724 #define CHECK_EXT2(EXT1, EXT2, FUNC)                                   \\
 725    if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) {               \\
 726       _mesa_error(ctx, GL_INVALID_ENUM, FUNC "(0x%x)", (int) pname);  \\
 727       return;                                                          \\
 728    }
 729
 730 /*
 731  * Check if either of three extensions is enabled.
 732  */
 733 #define CHECK_EXT3(EXT1, EXT2, EXT3, FUNC)                             \\
 734    if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2 &&               \\
 735        !ctx->Extensions.EXT3) {                                        \\
 736       _mesa_error(ctx, GL_INVALID_ENUM, FUNC "(0x%x)", (int) pname);  \\
 737       return;                                                          \\
 738    }
 739
 740 /*
 741  * Check if either of four extensions is enabled.
 742  */
 743 #define CHECK_EXT4(EXT1, EXT2, EXT3, EXT4, FUNC)                       \\
 744    if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2 &&               \\
 745        !ctx->Extensions.EXT3 && !ctx->Extensions.EXT4) {               \\
 746       _mesa_error(ctx, GL_INVALID_ENUM, FUNC "(0x%x)", (int) pname);  \\
 747       return;                                                          \\
 748    }
 749
 750
 751
 752 /**
 753  * List of compressed texture formats supported by ES.
 754  */
 755 static GLenum compressed_formats[] = {
 756    GL_PALETTE4_RGB8_OES,
 757    GL_PALETTE4_RGBA8_OES,
 758    GL_PALETTE4_R5_G6_B5_OES,
 759    GL_PALETTE4_RGBA4_OES,
 760    GL_PALETTE4_RGB5_A1_OES,
 761    GL_PALETTE8_RGB8_OES,
 762    GL_PALETTE8_RGBA8_OES,
 763    GL_PALETTE8_R5_G6_B5_OES,
 764    GL_PALETTE8_RGBA4_OES,
 765    GL_PALETTE8_RGB5_A1_OES
 766 };
 767
 768 #define ARRAY_SIZE(A)  (sizeof(A) / sizeof(A[0]))
 769
 770 void GLAPIENTRY
 771 _mesa_GetFixedv( GLenum pname, GLfixed *params );
 772
 773 """
 774         return
 775
 776
 777 def EmitAll(stateVars, API):
 778         EmitHeader()
 779         EmitGetFunction(stateVars, GLboolean)
 780         EmitGetFunction(stateVars, GLfloat)
 781         EmitGetFunction(stateVars, GLint)
 782         if API == 1:
 783                 EmitGetFunction(stateVars, GLfixed)
 784
 785
 786 def main(args):
 787         # Determine whether to generate ES1 or ES2 queries
 788         if len(args) > 1 and args[1] == "1":
 789                 API = 1
 790         elif len(args) > 1 and args[1] == "2":
 791                 API = 2
 792         else:
 793                 API = 1
 794         #print "len args = %d  API = %d" % (len(args), API)
 795
 796         if API == 1:
 797                 vars = StateVars_common + StateVars_es1
 798         else:
 799                 vars = StateVars_common + StateVars_es2
 800
 801         EmitAll(vars, API)
 802
 803
 804 main(sys.argv)