1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26// http://www.khronos.org/registry/webgl/specs/latest/1.0/#WebGLRenderingContextBase
27
28typedef unsigned long  GLenum;
29typedef boolean        GLboolean;
30typedef unsigned long  GLbitfield;
31typedef byte           GLbyte; // 'byte' should be a signed 8 bit type.
32typedef short          GLshort;
33typedef long           GLint;
34typedef long           GLsizei;
35typedef long long      GLintptr;
36typedef long long      GLsizeiptr;
37typedef octet          GLubyte; // 'octet' should be an unsigned 8 bit type.
38typedef unsigned short GLushort;
39typedef unsigned long  GLuint;
40typedef unrestricted float GLfloat;
41typedef unrestricted float GLclampf;
42
43[
44    // FIXME: [DoNotCheckConstants] and [TypeChecking=(Interface,Unrestricted)] should be applied
45    // to members and not need to be put on implementing interface
46    // DoNotCheckConstants, // need to put on implementing interface
47    NoInterfaceObject, // Always used on target of 'implements'
48    // TypeChecking=(Interface,Unrestricted), // need to put on implementing interface
49    WillBeGarbageCollected,
50] interface WebGLRenderingContextBase {
51
52    readonly attribute HTMLCanvasElement canvas;
53
54    /* ClearBufferMask */
55    const GLenum DEPTH_BUFFER_BIT               = 0x00000100;
56    const GLenum STENCIL_BUFFER_BIT             = 0x00000400;
57    const GLenum COLOR_BUFFER_BIT               = 0x00004000;
58
59    /* BeginMode */
60    const GLenum POINTS                         = 0x0000;
61    const GLenum LINES                          = 0x0001;
62    const GLenum LINE_LOOP                      = 0x0002;
63    const GLenum LINE_STRIP                     = 0x0003;
64    const GLenum TRIANGLES                      = 0x0004;
65    const GLenum TRIANGLE_STRIP                 = 0x0005;
66    const GLenum TRIANGLE_FAN                   = 0x0006;
67
68    /* AlphaFunction (not supported in ES20) */
69    /*      NEVER */
70    /*      LESS */
71    /*      EQUAL */
72    /*      LEQUAL */
73    /*      GREATER */
74    /*      NOTEQUAL */
75    /*      GEQUAL */
76    /*      ALWAYS */
77
78    /* BlendingFactorDest */
79    const GLenum ZERO                           = 0;
80    const GLenum ONE                            = 1;
81    const GLenum SRC_COLOR                      = 0x0300;
82    const GLenum ONE_MINUS_SRC_COLOR            = 0x0301;
83    const GLenum SRC_ALPHA                      = 0x0302;
84    const GLenum ONE_MINUS_SRC_ALPHA            = 0x0303;
85    const GLenum DST_ALPHA                      = 0x0304;
86    const GLenum ONE_MINUS_DST_ALPHA            = 0x0305;
87
88    /* BlendingFactorSrc */
89    /*      ZERO */
90    /*      ONE */
91    const GLenum DST_COLOR                      = 0x0306;
92    const GLenum ONE_MINUS_DST_COLOR            = 0x0307;
93    const GLenum SRC_ALPHA_SATURATE             = 0x0308;
94    /*      SRC_ALPHA */
95    /*      ONE_MINUS_SRC_ALPHA */
96    /*      DST_ALPHA */
97    /*      ONE_MINUS_DST_ALPHA */
98
99    /* BlendEquationSeparate */
100    const GLenum FUNC_ADD                       = 0x8006;
101    const GLenum BLEND_EQUATION                 = 0x8009;
102    const GLenum BLEND_EQUATION_RGB             = 0x8009;   /* same as BLEND_EQUATION */
103    const GLenum BLEND_EQUATION_ALPHA           = 0x883D;
104
105    /* BlendSubtract */
106    const GLenum FUNC_SUBTRACT                  = 0x800A;
107    const GLenum FUNC_REVERSE_SUBTRACT          = 0x800B;
108
109    /* Separate Blend Functions */
110    const GLenum BLEND_DST_RGB                  = 0x80C8;
111    const GLenum BLEND_SRC_RGB                  = 0x80C9;
112    const GLenum BLEND_DST_ALPHA                = 0x80CA;
113    const GLenum BLEND_SRC_ALPHA                = 0x80CB;
114    const GLenum CONSTANT_COLOR                 = 0x8001;
115    const GLenum ONE_MINUS_CONSTANT_COLOR       = 0x8002;
116    const GLenum CONSTANT_ALPHA                 = 0x8003;
117    const GLenum ONE_MINUS_CONSTANT_ALPHA       = 0x8004;
118    const GLenum BLEND_COLOR                    = 0x8005;
119
120    /* Buffer Objects */
121    const GLenum ARRAY_BUFFER                   = 0x8892;
122    const GLenum ELEMENT_ARRAY_BUFFER           = 0x8893;
123    const GLenum ARRAY_BUFFER_BINDING           = 0x8894;
124    const GLenum ELEMENT_ARRAY_BUFFER_BINDING   = 0x8895;
125
126    const GLenum STREAM_DRAW                    = 0x88E0;
127    const GLenum STATIC_DRAW                    = 0x88E4;
128    const GLenum DYNAMIC_DRAW                   = 0x88E8;
129
130    const GLenum BUFFER_SIZE                    = 0x8764;
131    const GLenum BUFFER_USAGE                   = 0x8765;
132
133    const GLenum CURRENT_VERTEX_ATTRIB          = 0x8626;
134
135    /* CullFaceMode */
136    const GLenum FRONT                          = 0x0404;
137    const GLenum BACK                           = 0x0405;
138    const GLenum FRONT_AND_BACK                 = 0x0408;
139
140    /* DepthFunction */
141    /*      NEVER */
142    /*      LESS */
143    /*      EQUAL */
144    /*      LEQUAL */
145    /*      GREATER */
146    /*      NOTEQUAL */
147    /*      GEQUAL */
148    /*      ALWAYS */
149
150    /* EnableCap */
151    const GLenum TEXTURE_2D                     = 0x0DE1;
152    const GLenum CULL_FACE                      = 0x0B44;
153    const GLenum BLEND                          = 0x0BE2;
154    const GLenum DITHER                         = 0x0BD0;
155    const GLenum STENCIL_TEST                   = 0x0B90;
156    const GLenum DEPTH_TEST                     = 0x0B71;
157    const GLenum SCISSOR_TEST                   = 0x0C11;
158    const GLenum POLYGON_OFFSET_FILL            = 0x8037;
159    const GLenum SAMPLE_ALPHA_TO_COVERAGE       = 0x809E;
160    const GLenum SAMPLE_COVERAGE                = 0x80A0;
161
162    /* ErrorCode */
163    const GLenum NO_ERROR                       = 0;
164    const GLenum INVALID_ENUM                   = 0x0500;
165    const GLenum INVALID_VALUE                  = 0x0501;
166    const GLenum INVALID_OPERATION              = 0x0502;
167    const GLenum OUT_OF_MEMORY                  = 0x0505;
168
169    /* FrontFaceDirection */
170    const GLenum CW                             = 0x0900;
171    const GLenum CCW                            = 0x0901;
172
173    /* GetPName */
174    const GLenum LINE_WIDTH                     = 0x0B21;
175    const GLenum ALIASED_POINT_SIZE_RANGE       = 0x846D;
176    const GLenum ALIASED_LINE_WIDTH_RANGE       = 0x846E;
177    const GLenum CULL_FACE_MODE                 = 0x0B45;
178    const GLenum FRONT_FACE                     = 0x0B46;
179    const GLenum DEPTH_RANGE                    = 0x0B70;
180    const GLenum DEPTH_WRITEMASK                = 0x0B72;
181    const GLenum DEPTH_CLEAR_VALUE              = 0x0B73;
182    const GLenum DEPTH_FUNC                     = 0x0B74;
183    const GLenum STENCIL_CLEAR_VALUE            = 0x0B91;
184    const GLenum STENCIL_FUNC                   = 0x0B92;
185    const GLenum STENCIL_FAIL                   = 0x0B94;
186    const GLenum STENCIL_PASS_DEPTH_FAIL        = 0x0B95;
187    const GLenum STENCIL_PASS_DEPTH_PASS        = 0x0B96;
188    const GLenum STENCIL_REF                    = 0x0B97;
189    const GLenum STENCIL_VALUE_MASK             = 0x0B93;
190    const GLenum STENCIL_WRITEMASK              = 0x0B98;
191    const GLenum STENCIL_BACK_FUNC              = 0x8800;
192    const GLenum STENCIL_BACK_FAIL              = 0x8801;
193    const GLenum STENCIL_BACK_PASS_DEPTH_FAIL   = 0x8802;
194    const GLenum STENCIL_BACK_PASS_DEPTH_PASS   = 0x8803;
195    const GLenum STENCIL_BACK_REF               = 0x8CA3;
196    const GLenum STENCIL_BACK_VALUE_MASK        = 0x8CA4;
197    const GLenum STENCIL_BACK_WRITEMASK         = 0x8CA5;
198    const GLenum VIEWPORT                       = 0x0BA2;
199    const GLenum SCISSOR_BOX                    = 0x0C10;
200    /*      SCISSOR_TEST */
201    const GLenum COLOR_CLEAR_VALUE              = 0x0C22;
202    const GLenum COLOR_WRITEMASK                = 0x0C23;
203    const GLenum UNPACK_ALIGNMENT               = 0x0CF5;
204    const GLenum PACK_ALIGNMENT                 = 0x0D05;
205    const GLenum MAX_TEXTURE_SIZE               = 0x0D33;
206    const GLenum MAX_VIEWPORT_DIMS              = 0x0D3A;
207    const GLenum SUBPIXEL_BITS                  = 0x0D50;
208    const GLenum RED_BITS                       = 0x0D52;
209    const GLenum GREEN_BITS                     = 0x0D53;
210    const GLenum BLUE_BITS                      = 0x0D54;
211    const GLenum ALPHA_BITS                     = 0x0D55;
212    const GLenum DEPTH_BITS                     = 0x0D56;
213    const GLenum STENCIL_BITS                   = 0x0D57;
214    const GLenum POLYGON_OFFSET_UNITS           = 0x2A00;
215    /*      POLYGON_OFFSET_FILL */
216    const GLenum POLYGON_OFFSET_FACTOR          = 0x8038;
217    const GLenum TEXTURE_BINDING_2D             = 0x8069;
218    const GLenum SAMPLE_BUFFERS                 = 0x80A8;
219    const GLenum SAMPLES                        = 0x80A9;
220    const GLenum SAMPLE_COVERAGE_VALUE          = 0x80AA;
221    const GLenum SAMPLE_COVERAGE_INVERT         = 0x80AB;
222
223    /* GetTextureParameter */
224    /*      TEXTURE_MAG_FILTER */
225    /*      TEXTURE_MIN_FILTER */
226    /*      TEXTURE_WRAP_S */
227    /*      TEXTURE_WRAP_T */
228
229    const GLenum COMPRESSED_TEXTURE_FORMATS     = 0x86A3;
230
231    /* HintMode */
232    const GLenum DONT_CARE                      = 0x1100;
233    const GLenum FASTEST                        = 0x1101;
234    const GLenum NICEST                         = 0x1102;
235
236    /* HintTarget */
237    const GLenum GENERATE_MIPMAP_HINT            = 0x8192;
238
239    /* DataType */
240    const GLenum BYTE                           = 0x1400;
241    const GLenum UNSIGNED_BYTE                  = 0x1401;
242    const GLenum SHORT                          = 0x1402;
243    const GLenum UNSIGNED_SHORT                 = 0x1403;
244    const GLenum INT                            = 0x1404;
245    const GLenum UNSIGNED_INT                   = 0x1405;
246    const GLenum FLOAT                          = 0x1406;
247
248    /* PixelFormat */
249    const GLenum DEPTH_COMPONENT                = 0x1902;
250    const GLenum ALPHA                          = 0x1906;
251    const GLenum RGB                            = 0x1907;
252    const GLenum RGBA                           = 0x1908;
253    const GLenum LUMINANCE                      = 0x1909;
254    const GLenum LUMINANCE_ALPHA                = 0x190A;
255
256    /* PixelType */
257    /*      UNSIGNED_BYTE */
258    const GLenum UNSIGNED_SHORT_4_4_4_4         = 0x8033;
259    const GLenum UNSIGNED_SHORT_5_5_5_1         = 0x8034;
260    const GLenum UNSIGNED_SHORT_5_6_5           = 0x8363;
261
262    /* Shaders */
263    const GLenum FRAGMENT_SHADER                  = 0x8B30;
264    const GLenum VERTEX_SHADER                    = 0x8B31;
265    const GLenum MAX_VERTEX_ATTRIBS               = 0x8869;
266    const GLenum MAX_VERTEX_UNIFORM_VECTORS       = 0x8DFB;
267    const GLenum MAX_VARYING_VECTORS              = 0x8DFC;
268    const GLenum MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D;
269    const GLenum MAX_VERTEX_TEXTURE_IMAGE_UNITS   = 0x8B4C;
270    const GLenum MAX_TEXTURE_IMAGE_UNITS          = 0x8872;
271    const GLenum MAX_FRAGMENT_UNIFORM_VECTORS     = 0x8DFD;
272    const GLenum SHADER_TYPE                      = 0x8B4F;
273    const GLenum DELETE_STATUS                    = 0x8B80;
274    const GLenum LINK_STATUS                      = 0x8B82;
275    const GLenum VALIDATE_STATUS                  = 0x8B83;
276    const GLenum ATTACHED_SHADERS                 = 0x8B85;
277    const GLenum ACTIVE_UNIFORMS                  = 0x8B86;
278    const GLenum ACTIVE_ATTRIBUTES                = 0x8B89;
279    const GLenum SHADING_LANGUAGE_VERSION         = 0x8B8C;
280    const GLenum CURRENT_PROGRAM                  = 0x8B8D;
281
282    /* StencilFunction */
283    const GLenum NEVER                          = 0x0200;
284    const GLenum LESS                           = 0x0201;
285    const GLenum EQUAL                          = 0x0202;
286    const GLenum LEQUAL                         = 0x0203;
287    const GLenum GREATER                        = 0x0204;
288    const GLenum NOTEQUAL                       = 0x0205;
289    const GLenum GEQUAL                         = 0x0206;
290    const GLenum ALWAYS                         = 0x0207;
291
292    /* StencilOp */
293    /*      ZERO */
294    const GLenum KEEP                           = 0x1E00;
295    const GLenum REPLACE                        = 0x1E01;
296    const GLenum INCR                           = 0x1E02;
297    const GLenum DECR                           = 0x1E03;
298    const GLenum INVERT                         = 0x150A;
299    const GLenum INCR_WRAP                      = 0x8507;
300    const GLenum DECR_WRAP                      = 0x8508;
301
302    /* StringName */
303    const GLenum VENDOR                         = 0x1F00;
304    const GLenum RENDERER                       = 0x1F01;
305    const GLenum VERSION                        = 0x1F02;
306
307    /* TextureMagFilter */
308    const GLenum NEAREST                        = 0x2600;
309    const GLenum LINEAR                         = 0x2601;
310
311    /* TextureMinFilter */
312    /*      NEAREST */
313    /*      LINEAR */
314    const GLenum NEAREST_MIPMAP_NEAREST         = 0x2700;
315    const GLenum LINEAR_MIPMAP_NEAREST          = 0x2701;
316    const GLenum NEAREST_MIPMAP_LINEAR          = 0x2702;
317    const GLenum LINEAR_MIPMAP_LINEAR           = 0x2703;
318
319    /* TextureParameterName */
320    const GLenum TEXTURE_MAG_FILTER             = 0x2800;
321    const GLenum TEXTURE_MIN_FILTER             = 0x2801;
322    const GLenum TEXTURE_WRAP_S                 = 0x2802;
323    const GLenum TEXTURE_WRAP_T                 = 0x2803;
324
325    /* TextureTarget */
326    /*      TEXTURE_2D */
327    const GLenum TEXTURE                        = 0x1702;
328
329    const GLenum TEXTURE_CUBE_MAP               = 0x8513;
330    const GLenum TEXTURE_BINDING_CUBE_MAP       = 0x8514;
331    const GLenum TEXTURE_CUBE_MAP_POSITIVE_X    = 0x8515;
332    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_X    = 0x8516;
333    const GLenum TEXTURE_CUBE_MAP_POSITIVE_Y    = 0x8517;
334    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Y    = 0x8518;
335    const GLenum TEXTURE_CUBE_MAP_POSITIVE_Z    = 0x8519;
336    const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Z    = 0x851A;
337    const GLenum MAX_CUBE_MAP_TEXTURE_SIZE      = 0x851C;
338
339    /* TextureUnit */
340    const GLenum TEXTURE0                       = 0x84C0;
341    const GLenum TEXTURE1                       = 0x84C1;
342    const GLenum TEXTURE2                       = 0x84C2;
343    const GLenum TEXTURE3                       = 0x84C3;
344    const GLenum TEXTURE4                       = 0x84C4;
345    const GLenum TEXTURE5                       = 0x84C5;
346    const GLenum TEXTURE6                       = 0x84C6;
347    const GLenum TEXTURE7                       = 0x84C7;
348    const GLenum TEXTURE8                       = 0x84C8;
349    const GLenum TEXTURE9                       = 0x84C9;
350    const GLenum TEXTURE10                      = 0x84CA;
351    const GLenum TEXTURE11                      = 0x84CB;
352    const GLenum TEXTURE12                      = 0x84CC;
353    const GLenum TEXTURE13                      = 0x84CD;
354    const GLenum TEXTURE14                      = 0x84CE;
355    const GLenum TEXTURE15                      = 0x84CF;
356    const GLenum TEXTURE16                      = 0x84D0;
357    const GLenum TEXTURE17                      = 0x84D1;
358    const GLenum TEXTURE18                      = 0x84D2;
359    const GLenum TEXTURE19                      = 0x84D3;
360    const GLenum TEXTURE20                      = 0x84D4;
361    const GLenum TEXTURE21                      = 0x84D5;
362    const GLenum TEXTURE22                      = 0x84D6;
363    const GLenum TEXTURE23                      = 0x84D7;
364    const GLenum TEXTURE24                      = 0x84D8;
365    const GLenum TEXTURE25                      = 0x84D9;
366    const GLenum TEXTURE26                      = 0x84DA;
367    const GLenum TEXTURE27                      = 0x84DB;
368    const GLenum TEXTURE28                      = 0x84DC;
369    const GLenum TEXTURE29                      = 0x84DD;
370    const GLenum TEXTURE30                      = 0x84DE;
371    const GLenum TEXTURE31                      = 0x84DF;
372    const GLenum ACTIVE_TEXTURE                 = 0x84E0;
373
374    /* TextureWrapMode */
375    const GLenum REPEAT                         = 0x2901;
376    const GLenum CLAMP_TO_EDGE                  = 0x812F;
377    const GLenum MIRRORED_REPEAT                = 0x8370;
378
379    /* Uniform Types */
380    const GLenum FLOAT_VEC2                     = 0x8B50;
381    const GLenum FLOAT_VEC3                     = 0x8B51;
382    const GLenum FLOAT_VEC4                     = 0x8B52;
383    const GLenum INT_VEC2                       = 0x8B53;
384    const GLenum INT_VEC3                       = 0x8B54;
385    const GLenum INT_VEC4                       = 0x8B55;
386    const GLenum BOOL                           = 0x8B56;
387    const GLenum BOOL_VEC2                      = 0x8B57;
388    const GLenum BOOL_VEC3                      = 0x8B58;
389    const GLenum BOOL_VEC4                      = 0x8B59;
390    const GLenum FLOAT_MAT2                     = 0x8B5A;
391    const GLenum FLOAT_MAT3                     = 0x8B5B;
392    const GLenum FLOAT_MAT4                     = 0x8B5C;
393    const GLenum SAMPLER_2D                     = 0x8B5E;
394    const GLenum SAMPLER_CUBE                   = 0x8B60;
395
396    /* Vertex Arrays */
397    const GLenum VERTEX_ATTRIB_ARRAY_ENABLED        = 0x8622;
398    const GLenum VERTEX_ATTRIB_ARRAY_SIZE           = 0x8623;
399    const GLenum VERTEX_ATTRIB_ARRAY_STRIDE         = 0x8624;
400    const GLenum VERTEX_ATTRIB_ARRAY_TYPE           = 0x8625;
401    const GLenum VERTEX_ATTRIB_ARRAY_NORMALIZED     = 0x886A;
402    const GLenum VERTEX_ATTRIB_ARRAY_POINTER        = 0x8645;
403    const GLenum VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F;
404
405    /* Read Format */
406    const GLenum IMPLEMENTATION_COLOR_READ_TYPE   = 0x8B9A;
407    const GLenum IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B;
408
409    /* Shader Source */
410    const GLenum COMPILE_STATUS                 = 0x8B81;
411
412    /* Shader Precision-Specified Types */
413    const GLenum LOW_FLOAT                      = 0x8DF0;
414    const GLenum MEDIUM_FLOAT                   = 0x8DF1;
415    const GLenum HIGH_FLOAT                     = 0x8DF2;
416    const GLenum LOW_INT                        = 0x8DF3;
417    const GLenum MEDIUM_INT                     = 0x8DF4;
418    const GLenum HIGH_INT                       = 0x8DF5;
419
420    /* Framebuffer Object. */
421    const GLenum FRAMEBUFFER                    = 0x8D40;
422    const GLenum RENDERBUFFER                   = 0x8D41;
423
424    const GLenum RGBA4                          = 0x8056;
425    const GLenum RGB5_A1                        = 0x8057;
426    const GLenum RGB565                         = 0x8D62;
427    const GLenum DEPTH_COMPONENT16              = 0x81A5;
428    const GLenum STENCIL_INDEX                  = 0x1901;
429    const GLenum STENCIL_INDEX8                 = 0x8D48;
430    const GLenum DEPTH_STENCIL                  = 0x84F9;
431
432    const GLenum RENDERBUFFER_WIDTH             = 0x8D42;
433    const GLenum RENDERBUFFER_HEIGHT            = 0x8D43;
434    const GLenum RENDERBUFFER_INTERNAL_FORMAT   = 0x8D44;
435    const GLenum RENDERBUFFER_RED_SIZE          = 0x8D50;
436    const GLenum RENDERBUFFER_GREEN_SIZE        = 0x8D51;
437    const GLenum RENDERBUFFER_BLUE_SIZE         = 0x8D52;
438    const GLenum RENDERBUFFER_ALPHA_SIZE        = 0x8D53;
439    const GLenum RENDERBUFFER_DEPTH_SIZE        = 0x8D54;
440    const GLenum RENDERBUFFER_STENCIL_SIZE      = 0x8D55;
441
442    const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE           = 0x8CD0;
443    const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_NAME           = 0x8CD1;
444    const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL         = 0x8CD2;
445    const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3;
446
447    const GLenum COLOR_ATTACHMENT0              = 0x8CE0;
448    const GLenum DEPTH_ATTACHMENT               = 0x8D00;
449    const GLenum STENCIL_ATTACHMENT             = 0x8D20;
450    const GLenum DEPTH_STENCIL_ATTACHMENT       = 0x821A;
451
452    const GLenum NONE                           = 0;
453
454    const GLenum FRAMEBUFFER_COMPLETE                      = 0x8CD5;
455    const GLenum FRAMEBUFFER_INCOMPLETE_ATTACHMENT         = 0x8CD6;
456    const GLenum FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7;
457    const GLenum FRAMEBUFFER_INCOMPLETE_DIMENSIONS         = 0x8CD9;
458    const GLenum FRAMEBUFFER_UNSUPPORTED                   = 0x8CDD;
459
460    const GLenum FRAMEBUFFER_BINDING            = 0x8CA6;
461    const GLenum RENDERBUFFER_BINDING           = 0x8CA7;
462    const GLenum MAX_RENDERBUFFER_SIZE          = 0x84E8;
463
464    const GLenum INVALID_FRAMEBUFFER_OPERATION  = 0x0506;
465
466    /* WebGL-specific enums */
467    const GLenum UNPACK_FLIP_Y_WEBGL                = 0x9240;
468    const GLenum UNPACK_PREMULTIPLY_ALPHA_WEBGL     = 0x9241;
469    const GLenum CONTEXT_LOST_WEBGL                 = 0x9242;
470    const GLenum UNPACK_COLORSPACE_CONVERSION_WEBGL = 0x9243;
471    const GLenum BROWSER_DEFAULT_WEBGL              = 0x9244;
472
473    readonly attribute GLsizei drawingBufferWidth;
474    readonly attribute GLsizei drawingBufferHeight;
475
476    void activeTexture(GLenum texture);
477    void attachShader(WebGLProgram? program, WebGLShader? shader);
478    void bindAttribLocation(WebGLProgram? program, GLuint index, DOMString name);
479    void bindBuffer(GLenum target, WebGLBuffer? buffer);
480    void bindFramebuffer(GLenum target, WebGLFramebuffer? framebuffer);
481    void bindRenderbuffer(GLenum target, WebGLRenderbuffer? renderbuffer);
482    void bindTexture(GLenum target, WebGLTexture? texture);
483    void blendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
484    void blendEquation(GLenum mode);
485    void blendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);
486    void blendFunc(GLenum sfactor, GLenum dfactor);
487    void blendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
488    // FIXME: should be union type
489    // https://www.khronos.org/bugzilla/show_bug.cgi?id=1172
490    void bufferData(GLenum target, GLsizeiptr size, GLenum usage);
491    void bufferData(GLenum target, ArrayBufferView data, GLenum usage);
492    void bufferData(GLenum target, ArrayBuffer? data, GLenum usage);
493    void bufferSubData(GLenum target, GLintptr offset, ArrayBufferView data);
494    void bufferSubData(GLenum target, GLintptr offset, ArrayBuffer? data);
495
496    GLenum checkFramebufferStatus(GLenum target);
497    void clear(GLbitfield mask);
498    void clearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
499    void clearDepth(GLclampf depth);
500    void clearStencil(GLint s);
501    void colorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
502    void compileShader(WebGLShader? shader);
503
504    void compressedTexImage2D(GLenum target, GLint level, GLenum internalformat,
505                              GLsizei width, GLsizei height, GLint border, ArrayBufferView? data);
506    void compressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
507                                 GLsizei width, GLsizei height, GLenum format, ArrayBufferView? data);
508
509    void copyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
510    void copyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
511
512    WebGLBuffer createBuffer();
513    WebGLFramebuffer createFramebuffer();
514    WebGLProgram createProgram();
515    WebGLRenderbuffer createRenderbuffer();
516    WebGLShader createShader(GLenum type);
517    WebGLTexture createTexture();
518
519    void cullFace(GLenum mode);
520
521    void deleteBuffer(WebGLBuffer? buffer);
522    void deleteFramebuffer(WebGLFramebuffer? framebuffer);
523    void deleteProgram(WebGLProgram? program);
524    void deleteRenderbuffer(WebGLRenderbuffer? renderbuffer);
525    void deleteShader(WebGLShader? shader);
526    void deleteTexture(WebGLTexture? texture);
527
528    void depthFunc(GLenum func);
529    void depthMask(GLboolean flag);
530    void depthRange(GLclampf zNear, GLclampf zFar);
531    void detachShader(WebGLProgram? program, WebGLShader? shader);
532    void disable(GLenum cap);
533    void disableVertexAttribArray(GLuint index);
534    void drawArrays(GLenum mode, GLint first, GLsizei count);
535    void drawElements(GLenum mode, GLsizei count, GLenum type, GLintptr offset);
536
537    void enable(GLenum cap);
538    void enableVertexAttribArray(GLuint index);
539    void finish();
540    void flush();
541    void framebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, WebGLRenderbuffer? renderbuffer);
542    void framebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, WebGLTexture? texture, GLint level);
543    void frontFace(GLenum mode);
544    void generateMipmap(GLenum target);
545
546    WebGLActiveInfo getActiveAttrib(WebGLProgram? program, GLuint index);
547    WebGLActiveInfo getActiveUniform(WebGLProgram? program, GLuint index);
548
549    sequence<WebGLShader>? getAttachedShaders(WebGLProgram? program);
550
551    GLint getAttribLocation(WebGLProgram? program, DOMString name);
552
553    [Custom] any getBufferParameter(GLenum target, GLenum pname);
554
555    WebGLContextAttributes getContextAttributes();
556
557    GLenum getError();
558
559    // object getExtension(DOMString name);
560    [Custom] any getExtension(DOMString name);
561
562    [Custom] any getFramebufferAttachmentParameter(GLenum target, GLenum attachment, GLenum pname);
563    [Custom] any getParameter(GLenum pname);
564    [Custom] any getProgramParameter(WebGLProgram? program, GLenum pname);
565    DOMString? getProgramInfoLog(WebGLProgram? program);
566    [Custom] any getRenderbufferParameter(GLenum target, GLenum pname);
567    [Custom] any getShaderParameter(WebGLShader? shader, GLenum pname);
568
569    DOMString?   getShaderInfoLog(WebGLShader? shader);
570
571    WebGLShaderPrecisionFormat getShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype);
572
573    DOMString?   getShaderSource(WebGLShader? shader);
574
575    sequence<DOMString>? getSupportedExtensions();
576
577    [Custom] any getTexParameter(GLenum target, GLenum pname);
578
579    [Custom] any getUniform(WebGLProgram? program, WebGLUniformLocation? location);
580
581    WebGLUniformLocation getUniformLocation(WebGLProgram? program, DOMString name);
582
583    [Custom] any getVertexAttrib(GLuint index, GLenum pname);
584
585    GLsizeiptr getVertexAttribOffset(GLuint index, GLenum pname);
586
587    void hint(GLenum target, GLenum mode);
588    GLboolean isBuffer(WebGLBuffer? buffer);
589    GLboolean isContextLost();
590    GLboolean isEnabled(GLenum cap);
591    GLboolean isFramebuffer(WebGLFramebuffer? framebuffer);
592    GLboolean isProgram(WebGLProgram? program);
593    GLboolean isRenderbuffer(WebGLRenderbuffer? renderbuffer);
594    GLboolean isShader(WebGLShader? shader);
595    GLboolean isTexture(WebGLTexture? texture);
596    void lineWidth(GLfloat width);
597    void linkProgram(WebGLProgram? program);
598    void pixelStorei(GLenum pname, GLint param);
599    void polygonOffset(GLfloat factor, GLfloat units);
600
601    void readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, ArrayBufferView? pixels);
602
603    void renderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
604    void sampleCoverage(GLclampf value, GLboolean invert);
605    void scissor(GLint x, GLint y, GLsizei width, GLsizei height);
606    void shaderSource(WebGLShader? shader, DOMString string);
607    void stencilFunc(GLenum func, GLint ref, GLuint mask);
608    void stencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
609    void stencilMask(GLuint mask);
610    void stencilMaskSeparate(GLenum face, GLuint mask);
611    void stencilOp(GLenum fail, GLenum zfail, GLenum zpass);
612    void stencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
613
614    void texParameterf(GLenum target, GLenum pname, GLfloat param);
615    void texParameteri(GLenum target, GLenum pname, GLint param);
616
617    // Supported forms:
618    // FIXME: should be union type
619    // https://www.khronos.org/bugzilla/show_bug.cgi?id=1172
620    [RaisesException] void texImage2D(
621        GLenum target, GLint level, GLenum internalformat,
622        GLsizei width, GLsizei height, GLint border,
623        GLenum format, GLenum type, ArrayBufferView? pixels);
624    [RaisesException] void texImage2D(
625        GLenum target, GLint level, GLenum internalformat,
626        GLenum format, GLenum type, ImageData? pixels);
627    [RaisesException] void texImage2D(
628        GLenum target, GLint level, GLenum internalformat,
629        GLenum format, GLenum type, HTMLImageElement image);
630    [RaisesException] void texImage2D(
631        GLenum target, GLint level, GLenum internalformat,
632        GLenum format, GLenum type, HTMLCanvasElement canvas);
633    [RaisesException] void texImage2D(
634        GLenum target, GLint level, GLenum internalformat,
635        GLenum format, GLenum type, HTMLVideoElement video);
636
637    [RaisesException] void texSubImage2D(
638        GLenum target, GLint level, GLint xoffset, GLint yoffset,
639        GLsizei width, GLsizei height,
640        GLenum format, GLenum type, ArrayBufferView? pixels);
641    [RaisesException] void texSubImage2D(
642        GLenum target, GLint level, GLint xoffset, GLint yoffset,
643        GLenum format, GLenum type, ImageData? pixels);
644    [RaisesException] void texSubImage2D(
645        GLenum target, GLint level, GLint xoffset, GLint yoffset,
646        GLenum format, GLenum type, HTMLImageElement image);
647    [RaisesException] void texSubImage2D(
648        GLenum target, GLint level, GLint xoffset, GLint yoffset,
649        GLenum format, GLenum type, HTMLCanvasElement canvas);
650    [RaisesException] void texSubImage2D(
651        GLenum target, GLint level, GLint xoffset, GLint yoffset,
652        GLenum format, GLenum type, HTMLVideoElement video);
653
654    void uniform1f(WebGLUniformLocation? location, GLfloat x);
655    [Custom] void uniform1fv(WebGLUniformLocation? location, Float32Array v);
656    void uniform1i(WebGLUniformLocation? location, GLint x);
657    [Custom] void uniform1iv(WebGLUniformLocation? location, Int32Array v);
658    void uniform2f(WebGLUniformLocation? location, GLfloat x, GLfloat y);
659    [Custom] void uniform2fv(WebGLUniformLocation? location, Float32Array v);
660    void uniform2i(WebGLUniformLocation? location, GLint x, GLint y);
661    [Custom] void uniform2iv(WebGLUniformLocation? location, Int32Array v);
662    void uniform3f(WebGLUniformLocation? location, GLfloat x, GLfloat y, GLfloat z);
663    [Custom] void uniform3fv(WebGLUniformLocation? location, Float32Array v);
664    void uniform3i(WebGLUniformLocation? location, GLint x, GLint y, GLint z);
665    [Custom] void uniform3iv(WebGLUniformLocation? location, Int32Array v);
666    void uniform4f(WebGLUniformLocation? location, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
667    [Custom] void uniform4fv(WebGLUniformLocation? location, Float32Array v);
668    void uniform4i(WebGLUniformLocation? location, GLint x, GLint y, GLint z, GLint w);
669    [Custom] void uniform4iv(WebGLUniformLocation? location, Int32Array v);
670
671    [Custom] void uniformMatrix2fv(WebGLUniformLocation? location, GLboolean transpose, Float32Array array);
672    [Custom] void uniformMatrix3fv(WebGLUniformLocation? location, GLboolean transpose, Float32Array array);
673    [Custom] void uniformMatrix4fv(WebGLUniformLocation? location, GLboolean transpose, Float32Array array);
674
675    void useProgram(WebGLProgram? program);
676    void validateProgram(WebGLProgram? program);
677
678    void vertexAttrib1f(GLuint indx, GLfloat x);
679    [Custom] void vertexAttrib1fv(GLuint indx, Float32Array values);
680    void vertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
681    [Custom] void vertexAttrib2fv(GLuint indx, Float32Array values);
682    void vertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
683    [Custom] void vertexAttrib3fv(GLuint indx, Float32Array values);
684    void vertexAttrib4f(GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
685    [Custom] void vertexAttrib4fv(GLuint indx, Float32Array values);
686    void vertexAttribPointer(GLuint indx, GLint size, GLenum type, GLboolean normalized,
687                             GLsizei stride, GLintptr offset);
688
689    void viewport(GLint x, GLint y, GLsizei width, GLsizei height);
690};
691