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library_webgl2.js
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/*
* Copyright 2010 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*
* GL support. See http://kripken.github.io/emscripten-site/docs/porting/multimedia_and_graphics/OpenGL-support.html
* for current status.
*/
var LibraryWebGL2 = {
glGetStringi__deps: ['$stringToNewUTF8'],
glGetStringi__sig: 'iii',
glGetStringi: function(name, index) {
if (GL.currentContext.version < 2) {
GL.recordError(0x0502 /* GL_INVALID_OPERATION */); // Calling GLES3/WebGL2 function with a GLES2/WebGL1 context
return 0;
}
var stringiCache = GL.stringiCache[name];
if (stringiCache) {
if (index < 0 || index >= stringiCache.length) {
GL.recordError(0x0501/*GL_INVALID_VALUE*/);
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetStringi: index out of range (' + index + ')!');
#endif
return 0;
}
return stringiCache[index];
}
switch(name) {
case 0x1F03 /* GL_EXTENSIONS */:
var exts = GLctx.getSupportedExtensions() || []; // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
#if GL_EXTENSIONS_IN_PREFIXED_FORMAT
exts = exts.concat(exts.map(function(e) { return "GL_" + e; }));
#endif
exts = exts.map(function(e) { return stringToNewUTF8(e); });
stringiCache = GL.stringiCache[name] = exts;
if (index < 0 || index >= stringiCache.length) {
GL.recordError(0x0501/*GL_INVALID_VALUE*/);
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetStringi: index out of range (' + index + ') in a call to GL_EXTENSIONS!');
#endif
return 0;
}
return stringiCache[index];
default:
GL.recordError(0x0500/*GL_INVALID_ENUM*/);
#if GL_ASSERTIONS
err('GL_INVALID_ENUM in glGetStringi: Unknown parameter ' + name + '!');
#endif
return 0;
}
},
glGetInteger64v__sig: 'vii',
glGetInteger64v__deps: ['$emscriptenWebGLGet'],
glGetInteger64v: function(name_, p) {
emscriptenWebGLGet(name_, p, {{{ cDefine('EM_FUNC_SIG_PARAM_I64') }}});
},
glGetInternalformativ__sig: 'viiiii',
glGetInternalformativ: function(target, internalformat, pname, bufSize, params) {
if (bufSize < 0) {
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetInternalformativ(target=' + target + ', internalformat=' + internalformat + ', pname=' + pname + ', bufSize=' + bufSize + ', params=' + params + '): Function called with bufSize < 0!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
if (!params) {
// GLES3 specification does not specify how to behave if values is a null pointer. Since calling this function does not make sense
// if values == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetInternalformativ(target=' + target + ', internalformat=' + internalformat + ', pname=' + pname + ', bufSize=' + bufSize + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
var ret = GLctx['getInternalformatParameter'](target, internalformat, pname);
if (ret === null) return;
for (var i = 0; i < ret.length && i < bufSize; ++i) {
{{{ makeSetValue('params', 'i', 'ret[i]', 'i32') }}};
}
},
glCompressedTexImage3D__sig: 'viiiiiiiii',
glCompressedTexImage3D: function(target, level, internalFormat, width, height, depth, border, imageSize, data) {
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
if (GLctx.currentPixelUnpackBufferBinding) {
GLctx['compressedTexImage3D'](target, level, internalFormat, width, height, depth, border, imageSize, data);
} else {
GLctx['compressedTexImage3D'](target, level, internalFormat, width, height, depth, border, HEAPU8, data, imageSize);
}
} else {
GLctx['compressedTexImage3D'](target, level, internalFormat, width, height, depth, border, data ? {{{ makeHEAPView('U8', 'data', 'data+imageSize') }}} : null);
}
},
glCompressedTexSubImage3D__sig: 'viiiiiiiiiii',
glCompressedTexSubImage3D: function(target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data) {
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
if (GLctx.currentPixelUnpackBufferBinding) {
GLctx['compressedTexSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);
} else {
GLctx['compressedTexSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, HEAPU8, data, imageSize);
}
} else {
GLctx['compressedTexSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, data ? {{{ makeHEAPView('U8', 'data', 'data+imageSize') }}} : null);
}
},
_heapObjectForWebGLType: function(type) {
switch(type) {
case 0x1400 /* GL_BYTE */:
return HEAP8;
case 0x1401 /* GL_UNSIGNED_BYTE */:
return HEAPU8;
case 0x1402 /* GL_SHORT */:
return HEAP16;
case 0x1403 /* GL_UNSIGNED_SHORT */:
case 0x8363 /* GL_UNSIGNED_SHORT_5_6_5 */:
case 0x8033 /* GL_UNSIGNED_SHORT_4_4_4_4 */:
case 0x8034 /* GL_UNSIGNED_SHORT_5_5_5_1 */:
case 0x8D61 /* GL_HALF_FLOAT_OES */:
case 0x140B /* GL_HALF_FLOAT */:
return HEAPU16;
case 0x1404 /* GL_INT */:
return HEAP32;
case 0x1405 /* GL_UNSIGNED_INT */:
case 0x84FA /* GL_UNSIGNED_INT_24_8_WEBGL/GL_UNSIGNED_INT_24_8 */:
case 0x8C3E /* GL_UNSIGNED_INT_5_9_9_9_REV */:
case 0x8368 /* GL_UNSIGNED_INT_2_10_10_10_REV */:
case 0x8C3B /* GL_UNSIGNED_INT_10F_11F_11F_REV */:
case 0x84FA /* GL_UNSIGNED_INT_24_8 */:
return HEAPU32;
case 0x1406 /* GL_FLOAT */:
return HEAPF32;
}
},
_heapAccessShiftForWebGLType: {
0x1402 /* GL_SHORT */: 1,
0x1403 /* GL_UNSIGNED_SHORT */: 1,
0x8363 /* GL_UNSIGNED_SHORT_5_6_5 */: 1,
0x8033 /* GL_UNSIGNED_SHORT_4_4_4_4 */: 1,
0x8034 /* GL_UNSIGNED_SHORT_5_5_5_1 */: 1,
0x8D61 /* GL_HALF_FLOAT_OES */: 1,
0x140B /* GL_HALF_FLOAT */: 1,
0x1404 /* GL_INT */: 2,
0x1406 /* GL_FLOAT */: 2,
0x1405 /* GL_UNSIGNED_INT */: 2,
0x84FA /* GL_UNSIGNED_INT_24_8_WEBGL/GL_UNSIGNED_INT_24_8 */: 2,
0x8C3E /* GL_UNSIGNED_INT_5_9_9_9_REV */: 2,
0x8368 /* GL_UNSIGNED_INT_2_10_10_10_REV */: 2,
0x8C3B /* GL_UNSIGNED_INT_10F_11F_11F_REV */: 2,
0x84FA /* GL_UNSIGNED_INT_24_8 */: 2
},
glGetBufferParameteri64v__sig: 'viii',
glGetBufferParameteri64v: function(target, value, data) {
if (!data) {
// GLES2 specification does not specify how to behave if data is a null pointer. Since calling this function does not make sense
// if data == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetBufferParameteri64v(target=' + target + ', value=' + value + ', data=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
{{{ makeSetValue('data', '0', 'GLctx.getBufferParameter(target, value)', 'i64') }}};
},
glInvalidateFramebuffer__deps: ['_tempFixedLengthArray'],
glInvalidateFramebuffer__sig: 'viii',
glInvalidateFramebuffer: function(target, numAttachments, attachments) {
#if GL_ASSERTIONS
assert(numAttachments < __tempFixedLengthArray.length, 'Invalid count of numAttachments=' + numAttachments + ' passed to glInvalidateFramebuffer (that many attachment points do not exist in GL)');
#endif
var list = __tempFixedLengthArray[numAttachments];
for (var i = 0; i < numAttachments; i++) {
list[i] = {{{ makeGetValue('attachments', 'i*4', 'i32') }}};
}
GLctx['invalidateFramebuffer'](target, list);
},
glInvalidateSubFramebuffer__deps: ['_tempFixedLengthArray'],
glInvalidateSubFramebuffer__sig: 'viiiiiii',
glInvalidateSubFramebuffer: function(target, numAttachments, attachments, x, y, width, height) {
#if GL_ASSERTIONS
assert(numAttachments < __tempFixedLengthArray.length, 'Invalid count of numAttachments=' + numAttachments + ' passed to glInvalidateSubFramebuffer (that many attachment points do not exist in GL)');
#endif
var list = __tempFixedLengthArray[numAttachments];
for (var i = 0; i < numAttachments; i++) {
list[i] = {{{ makeGetValue('attachments', 'i*4', 'i32') }}};
}
GLctx['invalidateSubFramebuffer'](target, list, x, y, width, height);
},
glTexImage3D__sig: 'viiiiiiiiii',
glTexImage3D__deps: ['_heapObjectForWebGLType', '_heapAccessShiftForWebGLType'],
glTexImage3D: function(target, level, internalFormat, width, height, depth, border, format, type, pixels) {
if (GLctx.currentPixelUnpackBufferBinding) {
GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, pixels);
} else if (pixels != 0) {
GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, __heapObjectForWebGLType(type), pixels >> (__heapAccessShiftForWebGLType[type]|0));
} else {
GLctx['texImage3D'](target, level, internalFormat, width, height, depth, border, format, type, null);
}
},
glTexSubImage3D__sig: 'viiiiiiiiiii',
glTexSubImage3D__deps: ['_heapObjectForWebGLType', '_heapAccessShiftForWebGLType'],
glTexSubImage3D: function(target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels) {
if (GLctx.currentPixelUnpackBufferBinding) {
GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);
} else if (pixels != 0) {
GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, __heapObjectForWebGLType(type), pixels >> (__heapAccessShiftForWebGLType[type]|0));
} else {
GLctx['texSubImage3D'](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, null);
}
},
// Queries
glGenQueries__sig: 'vii',
glGenQueries__deps: ['_glGenObject'],
glGenQueries: function(n, ids) {
__glGenObject(n, ids, 'createQuery', GL.queries
#if GL_ASSERTIONS
, 'glGenQueries'
#endif
);
},
glDeleteQueries__sig: 'vii',
glDeleteQueries: function(n, ids) {
for (var i = 0; i < n; i++) {
var id = {{{ makeGetValue('ids', 'i*4', 'i32') }}};
var query = GL.queries[id];
if (!query) continue; // GL spec: "unused names in ids are ignored, as is the name zero."
GLctx['deleteQuery'](query);
GL.queries[id] = null;
}
},
glIsQuery__sig: 'ii',
glIsQuery: function(id) {
var query = GL.queries[id];
if (!query) return 0;
return GLctx['isQuery'](query);
},
glBeginQuery__sig: 'vii',
glBeginQuery: function(target, id) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.queries, id, 'glBeginQuery', 'id');
#endif
GLctx['beginQuery'](target, GL.queries[id]);
},
glGetQueryiv__sig: 'viii',
glGetQueryiv: function(target, pname, params) {
if (!params) {
// GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if p == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetQueryiv(target=' + target +', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
{{{ makeSetValue('params', '0', 'GLctx[\'getQuery\'](target, pname)', 'i32') }}};
},
glGetQueryObjectuiv__sig: 'viii',
glGetQueryObjectuiv: function(id, pname, params) {
if (!params) {
// GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if p == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetQueryObjectuiv(id=' + id +', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.queries, id, 'glGetQueryObjectuiv', 'id');
#endif
var query = GL.queries[id];
var param = GLctx['getQueryParameter'](query, pname);
var ret;
if (typeof param == 'boolean') {
ret = param ? 1 : 0;
} else {
ret = param;
}
{{{ makeSetValue('params', '0', 'ret', 'i32') }}};
},
// Sampler objects
glGenSamplers__sig: 'vii',
glGenSamplers__deps: ['_glGenObject'],
glGenSamplers: function(n, samplers) {
__glGenObject(n, samplers, 'createSampler', GL.samplers
#if GL_ASSERTIONS
, 'glGenSamplers'
#endif
);
},
glDeleteSamplers__sig: 'vii',
glDeleteSamplers: function(n, samplers) {
for (var i = 0; i < n; i++) {
var id = {{{ makeGetValue('samplers', 'i*4', 'i32') }}};
var sampler = GL.samplers[id];
if (!sampler) continue;
GLctx['deleteSampler'](sampler);
sampler.name = 0;
GL.samplers[id] = null;
}
},
glIsSampler__sig: 'ii',
glIsSampler: function(id) {
var sampler = GL.samplers[id];
if (!sampler) return 0;
return GLctx['isSampler'](sampler);
},
glBindSampler__sig: 'vii',
glBindSampler: function(unit, sampler) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.samplers, sampler, 'glBindSampler', 'sampler');
#endif
GLctx['bindSampler'](unit, GL.samplers[sampler]);
},
glSamplerParameterf__sig: 'viif',
glSamplerParameterf: function(sampler, pname, param) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.samplers, sampler, 'glBindSampler', 'sampler');
#endif
GLctx['samplerParameterf'](GL.samplers[sampler], pname, param);
},
glSamplerParameteri__sig: 'viii',
glSamplerParameteri: function(sampler, pname, param) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.samplers, sampler, 'glBindSampler', 'sampler');
#endif
GLctx['samplerParameteri'](GL.samplers[sampler], pname, param);
},
glSamplerParameterfv__sig: 'viii',
glSamplerParameterfv: function(sampler, pname, params) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.samplers, sampler, 'glBindSampler', 'sampler');
#endif
var param = {{{ makeGetValue('params', '0', 'float') }}};
GLctx['samplerParameterf'](GL.samplers[sampler], pname, param);
},
glSamplerParameteriv__sig: 'viii',
glSamplerParameteriv: function(sampler, pname, params) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.samplers, sampler, 'glBindSampler', 'sampler');
#endif
var param = {{{ makeGetValue('params', '0', 'i32') }}};
GLctx['samplerParameteri'](GL.samplers[sampler], pname, param);
},
glGetSamplerParameterfv__sig: 'viii',
glGetSamplerParameterfv: function(sampler, pname, params) {
if (!params) {
// GLES3 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if p == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetSamplerParameterfv(sampler=' + sampler +', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
sampler = GL.samplers[sampler];
{{{ makeSetValue('params', '0', 'GLctx[\'getSamplerParameter\'](sampler, pname)', 'float') }}};
},
glGetSamplerParameteriv__sig: 'viii',
glGetSamplerParameteriv: function(sampler, pname, params) {
if (!params) {
// GLES3 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if p == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetSamplerParameteriv(sampler=' + sampler +', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
sampler = GL.samplers[sampler];
{{{ makeSetValue('params', '0', 'GLctx[\'getSamplerParameter\'](sampler, pname)', 'i32') }}};
},
// Transform Feedback
glGenTransformFeedbacks__sig: 'vii',
glGenTransformFeedbacks__deps: ['_glGenObject'],
glGenTransformFeedbacks: function(n, ids) {
__glGenObject(n, ids, 'createTransformFeedback', GL.transformFeedbacks
#if GL_ASSERTIONS
, 'glGenTransformFeedbacks'
#endif
);
},
glDeleteTransformFeedbacks__sig: 'vii',
glDeleteTransformFeedbacks: function(n, ids) {
for (var i = 0; i < n; i++) {
var id = {{{ makeGetValue('ids', 'i*4', 'i32') }}};
var transformFeedback = GL.transformFeedbacks[id];
if (!transformFeedback) continue; // GL spec: "unused names in ids are ignored, as is the name zero."
GLctx['deleteTransformFeedback'](transformFeedback);
transformFeedback.name = 0;
GL.transformFeedbacks[id] = null;
}
},
glIsTransformFeedback__sig: 'ii',
glIsTransformFeedback: function(id) {
return GLctx['isTransformFeedback'](GL.transformFeedbacks[id]);
},
glBindTransformFeedback__sig: 'vii',
glBindTransformFeedback: function(target, id) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.transformFeedbacks, id, 'glBindTransformFeedback', 'id');
#endif
GLctx['bindTransformFeedback'](target, GL.transformFeedbacks[id]);
},
glTransformFeedbackVaryings__sig: 'viiii',
glTransformFeedbackVaryings: function(program, count, varyings, bufferMode) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glTransformFeedbackVaryings', 'program');
#endif
program = GL.programs[program];
var vars = [];
for (var i = 0; i < count; i++)
vars.push(UTF8ToString({{{ makeGetValue('varyings', 'i*4', 'i32') }}}));
GLctx['transformFeedbackVaryings'](program, vars, bufferMode);
},
glGetTransformFeedbackVarying__sig: 'viiiiiii',
glGetTransformFeedbackVarying: function(program, index, bufSize, length, size, type, name) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetTransformFeedbackVarying', 'program');
#endif
program = GL.programs[program];
var info = GLctx['getTransformFeedbackVarying'](program, index);
if (!info) return; // If an error occurred, the return parameters length, size, type and name will be unmodified.
if (name && bufSize > 0) {
var numBytesWrittenExclNull = stringToUTF8(info.name, name, bufSize);
if (length) {{{ makeSetValue('length', '0', 'numBytesWrittenExclNull', 'i32') }}};
} else {
if (length) {{{ makeSetValue('length', '0', 0, 'i32') }}};
}
if (size) {{{ makeSetValue('size', '0', 'info.size', 'i32') }}};
if (type) {{{ makeSetValue('type', '0', 'info.type', 'i32') }}};
},
$emscriptenWebGLGetIndexed: function(target, index, data, type) {
if (!data) {
// GLES2 specification does not specify how to behave if data is a null pointer. Since calling this function does not make sense
// if data == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetInteger(64)i_v(target=' + target + ', index=' + index + ', data=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
var result = GLctx['getIndexedParameter'](target, index);
var ret;
switch (typeof result) {
case 'boolean':
ret = result ? 1 : 0;
break;
case 'number':
ret = result;
break;
case 'object':
if (result === null) {
switch (target) {
case 0x8C8F: // TRANSFORM_FEEDBACK_BUFFER_BINDING
case 0x8A28: // UNIFORM_BUFFER_BINDING
ret = 0;
break;
default: {
GL.recordError(0x0500); // GL_INVALID_ENUM
#if GL_ASSERTIONS
err('GL_INVALID_ENUM in glGetInteger(64)i_v(' + target + ') and it returns null!');
#endif
return;
}
}
} else if (result instanceof WebGLBuffer) {
ret = result.name | 0;
} else {
GL.recordError(0x0500); // GL_INVALID_ENUM
#if GL_ASSERTIONS
err('GL_INVALID_ENUM in glGetInteger(64)i_v: Unknown object returned from WebGL getIndexedParameter(' + target + ')!');
#endif
return;
}
break;
default:
GL.recordError(0x0500); // GL_INVALID_ENUM
#if GL_ASSERTIONS
err('GL_INVALID_ENUM in glGetInteger(64)i_v: Native code calling glGetInteger(64)i_v(' + target + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
#endif
return;
}
switch (type) {
case {{{ cDefine('EM_FUNC_SIG_PARAM_I64') }}}: {{{ makeSetValue('data', '0', 'ret', 'i64') }}}; break;
case {{{ cDefine('EM_FUNC_SIG_PARAM_I') }}}: {{{ makeSetValue('data', '0', 'ret', 'i32') }}}; break;
case {{{ cDefine('EM_FUNC_SIG_PARAM_F') }}}: {{{ makeSetValue('data', '0', 'ret', 'float') }}}; break;
case {{{ cDefine('EM_FUNC_SIG_PARAM_B') }}}: {{{ makeSetValue('data', '0', 'ret ? 1 : 0', 'i8') }}}; break;
default: throw 'internal emscriptenWebGLGetIndexed() error, bad type: ' + type;
}
},
glGetIntegeri_v__sig: 'viii',
glGetIntegeri_v__deps: ['$emscriptenWebGLGetIndexed'],
glGetIntegeri_v: function(target, index, data) {
emscriptenWebGLGetIndexed(target, index, data, {{{ cDefine('EM_FUNC_SIG_PARAM_I') }}});
},
glGetInteger64i_v__sig: 'viii',
glGetInteger64i_v__deps: ['$emscriptenWebGLGetIndexed'],
glGetInteger64i_v: function(target, index, data) {
emscriptenWebGLGetIndexed(target, index, data, {{{ cDefine('EM_FUNC_SIG_PARAM_I64') }}});
},
// Uniform Buffer objects
glBindBufferBase__sig: 'viii',
glBindBufferBase: function(target, index, buffer) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.buffers, buffer, 'glBindBufferBase', 'buffer');
#endif
GLctx['bindBufferBase'](target, index, GL.buffers[buffer]);
},
glBindBufferRange__sig: 'viiiii',
glBindBufferRange: function(target, index, buffer, offset, ptrsize) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.buffers, buffer, 'glBindBufferRange', 'buffer');
#endif
GLctx['bindBufferRange'](target, index, GL.buffers[buffer], offset, ptrsize);
},
glGetUniformIndices__sig: 'viiii',
glGetUniformIndices: function(program, uniformCount, uniformNames, uniformIndices) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetUniformIndices', 'program');
#endif
if (!uniformIndices) {
// GLES2 specification does not specify how to behave if uniformIndices is a null pointer. Since calling this function does not make sense
// if uniformIndices == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetUniformIndices(program=' + program + ', uniformCount=' + uniformCount + ', uniformNames=' + uniformNames + ', uniformIndices=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
if (uniformCount > 0 && (uniformNames == 0 || uniformIndices == 0)) {
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
program = GL.programs[program];
var names = [];
for (var i = 0; i < uniformCount; i++)
names.push(UTF8ToString({{{ makeGetValue('uniformNames', 'i*4', 'i32') }}}));
var result = GLctx['getUniformIndices'](program, names);
if (!result) return; // GL spec: If an error is generated, nothing is written out to uniformIndices.
var len = result.length;
for (var i = 0; i < len; i++) {
{{{ makeSetValue('uniformIndices', 'i*4', 'result[i]', 'i32') }}};
}
},
glGetActiveUniformsiv__sig: 'viiiii',
glGetActiveUniformsiv: function(program, uniformCount, uniformIndices, pname, params) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetActiveUniformsiv', 'program');
#endif
if (!params) {
// GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if params == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetActiveUniformsiv(program=' + program + ', uniformCount=' + uniformCount + ', uniformIndices=' + uniformIndices + ', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
if (uniformCount > 0 && uniformIndices == 0) {
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
program = GL.programs[program];
var ids = [];
for (var i = 0; i < uniformCount; i++) {
ids.push({{{ makeGetValue('uniformIndices', 'i*4', 'i32') }}});
}
var result = GLctx['getActiveUniforms'](program, ids, pname);
if (!result) return; // GL spec: If an error is generated, nothing is written out to params.
var len = result.length;
for (var i = 0; i < len; i++) {
{{{ makeSetValue('params', 'i*4', 'result[i]', 'i32') }}};
}
},
glGetUniformBlockIndex__sig: 'iii',
glGetUniformBlockIndex: function(program, uniformBlockName) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetUniformBlockIndex', 'program');
#endif
return GLctx['getUniformBlockIndex'](GL.programs[program], UTF8ToString(uniformBlockName));
},
glGetActiveUniformBlockiv__sig: 'viiii',
glGetActiveUniformBlockiv: function(program, uniformBlockIndex, pname, params) {
if (!params) {
// GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense
// if params == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetActiveUniformBlockiv(program=' + program + ', uniformBlockIndex=' + uniformBlockIndex + ', pname=' + pname + ', params=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetActiveUniformBlockiv', 'program');
#endif
program = GL.programs[program];
switch(pname) {
case 0x8A41: /* GL_UNIFORM_BLOCK_NAME_LENGTH */
var name = GLctx['getActiveUniformBlockName'](program, uniformBlockIndex);
{{{ makeSetValue('params', 0, 'name.length+1', 'i32') }}};
return;
default:
var result = GLctx['getActiveUniformBlockParameter'](program, uniformBlockIndex, pname);
if (!result) return; // If an error occurs, nothing will be written to params.
if (typeof result == 'number') {
{{{ makeSetValue('params', '0', 'result', 'i32') }}};
} else {
for (var i = 0; i < result.length; i++) {
{{{ makeSetValue('params', 'i*4', 'result[i]', 'i32') }}};
}
}
}
},
glGetActiveUniformBlockName__sig: 'viiiii',
glGetActiveUniformBlockName: function(program, uniformBlockIndex, bufSize, length, uniformBlockName) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetActiveUniformBlockName', 'program');
#endif
program = GL.programs[program];
var result = GLctx['getActiveUniformBlockName'](program, uniformBlockIndex);
if (!result) return; // If an error occurs, nothing will be written to uniformBlockName or length.
if (uniformBlockName && bufSize > 0) {
var numBytesWrittenExclNull = stringToUTF8(result, uniformBlockName, bufSize);
if (length) {{{ makeSetValue('length', '0', 'numBytesWrittenExclNull', 'i32') }}};
} else {
if (length) {{{ makeSetValue('length', '0', 0, 'i32') }}};
}
},
glUniformBlockBinding__sig: 'viii',
glUniformBlockBinding: function(program, uniformBlockIndex, uniformBlockBinding) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glUniformBlockBinding', 'program');
#endif
program = GL.programs[program];
GLctx['uniformBlockBinding'](program, uniformBlockIndex, uniformBlockBinding);
},
glClearBufferiv__sig: 'viii',
glClearBufferiv: function(buffer, drawbuffer, value) {
#if GL_ASSERTIONS
assert((value & 3) == 0, 'Pointer to integer data passed to glClearBufferiv must be aligned to four bytes!');
#endif
GLctx['clearBufferiv'](buffer, drawbuffer, HEAP32, value>>2);
},
glClearBufferuiv__sig: 'viii',
glClearBufferuiv: function(buffer, drawbuffer, value) {
#if GL_ASSERTIONS
assert((value & 3) == 0, 'Pointer to integer data passed to glClearBufferuiv must be aligned to four bytes!');
#endif
GLctx['clearBufferuiv'](buffer, drawbuffer, HEAPU32, value>>2);
},
glClearBufferfv__sig: 'viii',
glClearBufferfv: function(buffer, drawbuffer, value) {
#if GL_ASSERTIONS
assert((value & 3) == 0, 'Pointer to float data passed to glClearBufferfv must be aligned to four bytes!');
#endif
GLctx['clearBufferfv'](buffer, drawbuffer, HEAPF32, value>>2);
},
glFenceSync__sig: 'iii',
glFenceSync: function(condition, flags) {
var sync = GLctx.fenceSync(condition, flags);
if (sync) {
var id = GL.getNewId(GL.syncs);
sync.name = id;
GL.syncs[id] = sync;
return id;
} else {
return 0; // Failed to create a sync object
}
},
glDeleteSync__sig: 'vi',
glDeleteSync: function(id) {
if (!id) return;
var sync = GL.syncs[id];
if (!sync) { // glDeleteSync signals an error when deleting a nonexisting object, unlike some other GL delete functions.
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
GLctx.deleteSync(sync);
sync.name = 0;
GL.syncs[id] = null;
},
glClientWaitSync__sig: 'iiiii',
glClientWaitSync: function(sync, flags, timeoutLo, timeoutHi) {
// WebGL2 vs GLES3 differences: in GLES3, the timeout parameter is a uint64, where 0xFFFFFFFFFFFFFFFFULL means GL_TIMEOUT_IGNORED.
// In JS, there's no 64-bit value types, so instead timeout is taken to be signed, and GL_TIMEOUT_IGNORED is given value -1.
// Inherently the value accepted in the timeout is lossy, and can't take in arbitrary u64 bit pattern (but most likely doesn't matter)
// See https://www.khronos.org/registry/webgl/specs/latest/2.0/#5.15
timeoutLo = timeoutLo >>> 0;
timeoutHi = timeoutHi >>> 0;
var timeout = (timeoutLo == 0xFFFFFFFF && timeoutHi == 0xFFFFFFFF) ? -1 : makeBigInt(timeoutLo, timeoutHi, true);
return GLctx.clientWaitSync(GL.syncs[sync], flags, timeout);
},
glWaitSync__sig: 'viiii',
glWaitSync: function(sync, flags, timeoutLo, timeoutHi) {
// See WebGL2 vs GLES3 difference on GL_TIMEOUT_IGNORED above (https://www.khronos.org/registry/webgl/specs/latest/2.0/#5.15)
timeoutLo = timeoutLo >>> 0;
timeoutHi = timeoutHi >>> 0;
var timeout = (timeoutLo == 0xFFFFFFFF && timeoutHi == 0xFFFFFFFF) ? -1 : makeBigInt(timeoutLo, timeoutHi, true);
GLctx.waitSync(GL.syncs[sync], flags, timeout);
},
glGetSynciv__sig: 'viiiii',
glGetSynciv: function(sync, pname, bufSize, length, values) {
if (bufSize < 0) {
// GLES3 specification does not specify how to behave if bufSize < 0, however in the spec wording for glGetInternalformativ, it does say that GL_INVALID_VALUE should be raised,
// so raise GL_INVALID_VALUE here as well.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetSynciv(sync=' + sync + ', pname=' + pname + ', bufSize=' + bufSize + ', length=' + length + ', values='+values+'): Function called with bufSize < 0!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
if (!values) {
// GLES3 specification does not specify how to behave if values is a null pointer. Since calling this function does not make sense
// if values == null, issue a GL error to notify user about it.
#if GL_ASSERTIONS
err('GL_INVALID_VALUE in glGetSynciv(sync=' + sync + ', pname=' + pname + ', bufSize=' + bufSize + ', length=' + length + ', values=0): Function called with null out pointer!');
#endif
GL.recordError(0x0501 /* GL_INVALID_VALUE */);
return;
}
var ret = GLctx.getSyncParameter(GL.syncs[sync], pname);
{{{ makeSetValue('length', '0', 'ret', 'i32') }}};
if (ret !== null && length) {{{ makeSetValue('length', '0', '1', 'i32') }}}; // Report a single value outputted.
},
glIsSync__sig: 'ii',
glIsSync: function(sync) {
var sync = GL.syncs[sync];
if (!sync) return 0;
return GLctx.isSync(sync);
},
glGetUniformuiv__sig: 'viii',
glGetUniformuiv__deps: ['$emscriptenWebGLGetUniform'],
glGetUniformuiv: function(program, location, params) {
emscriptenWebGLGetUniform(program, location, params, {{{ cDefine('EM_FUNC_SIG_PARAM_I') }}});
},
glGetFragDataLocation__sig: 'iii',
glGetFragDataLocation: function(program, name) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.programs, program, 'glGetFragDataLocation', 'program');
#endif
return GLctx['getFragDataLocation'](GL.programs[program], UTF8ToString(name));
},
glGetVertexAttribIiv__sig: 'viii',
glGetVertexAttribIiv__deps: ['$emscriptenWebGLGetVertexAttrib'],
glGetVertexAttribIiv: function(index, pname, params) {
// N.B. This function may only be called if the vertex attribute was specified using the function glVertexAttribI4iv(),
// otherwise the results are undefined. (GLES3 spec 6.1.12)
emscriptenWebGLGetVertexAttrib(index, pname, params, {{{ cDefine('EM_FUNC_SIG_PARAM_I') }}});
},
// N.B. This function may only be called if the vertex attribute was specified using the function glVertexAttribI4uiv(),
// otherwise the results are undefined. (GLES3 spec 6.1.12)
glGetVertexAttribIuiv__sig: 'viii',
glGetVertexAttribIuiv__deps: ['$emscriptenWebGLGetVertexAttrib'],
glGetVertexAttribIuiv: 'glGetVertexAttribIiv',
glUniform1ui__sig: 'vii',
glUniform1ui: function(location, v0) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform1ui', 'location');
#endif
GLctx.uniform1ui(GL.uniforms[location], v0);
},
glUniform2ui__sig: 'viii',
glUniform2ui: function(location, v0, v1) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform2ui', 'location');
#endif
GLctx.uniform2ui(GL.uniforms[location], v0, v1);
},
glUniform3ui__sig: 'viiii',
glUniform3ui: function(location, v0, v1, v2) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform3ui', 'location');
#endif
GLctx.uniform3ui(GL.uniforms[location], v0, v1, v2);
},
glUniform4ui__sig: 'viiiii',
glUniform4ui: function(location, v0, v1, v2, v3) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform4ui', 'location');
#endif
GLctx.uniform4ui(GL.uniforms[location], v0, v1, v2, v3);
},
glUniform1uiv__sig: 'viii',
glUniform1uiv: function(location, count, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform1uiv', 'location');
assert((value & 3) == 0, 'Pointer to integer data passed to glUniform1uiv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniform1uiv(GL.uniforms[location], HEAPU32, value>>2, count);
} else {
GLctx.uniform1uiv(GL.uniforms[location], {{{ makeHEAPView('U32', 'value', 'value+count*4') }}});
}
},
glUniform2uiv__sig: 'viii',
glUniform2uiv: function(location, count, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform2uiv', 'location');
assert((value & 3) == 0, 'Pointer to integer data passed to glUniform2uiv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniform2uiv(GL.uniforms[location], HEAPU32, value>>2, count*2);
} else {
GLctx.uniform2uiv(GL.uniforms[location], {{{ makeHEAPView('U32', 'value', 'value+count*8') }}});
}
},
glUniform3uiv__sig: 'viii',
glUniform3uiv: function(location, count, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform3uiv', 'location');
assert((value & 3) == 0, 'Pointer to integer data passed to glUniform3uiv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniform3uiv(GL.uniforms[location], HEAPU32, value>>2, count*3);
} else {
GLctx.uniform3uiv(GL.uniforms[location], {{{ makeHEAPView('U32', 'value', 'value+count*12') }}});
}
},
glUniform4uiv__sig: 'viii',
glUniform4uiv: function(location, count, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniform4uiv', 'location');
assert((value & 3) == 0, 'Pointer to integer data passed to glUniform4uiv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniform4uiv(GL.uniforms[location], HEAPU32, value>>2, count*4);
} else {
GLctx.uniform4uiv(GL.uniforms[location], {{{ makeHEAPView('U32', 'value', 'value+count*16') }}});
}
},
glUniformMatrix2x3fv__sig: 'viiii',
glUniformMatrix2x3fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix2x3fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix2x3fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix2x3fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*6);
} else {
GLctx.uniformMatrix2x3fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*24') }}});
}
},
glUniformMatrix3x2fv__sig: 'viiii',
glUniformMatrix3x2fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix3x2fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix3x2fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix3x2fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*6);
} else {
GLctx.uniformMatrix3x2fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*24') }}});
}
},
glUniformMatrix2x4fv__sig: 'viiii',
glUniformMatrix2x4fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix2x4fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix2x4fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix2x4fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*8);
} else {
GLctx.uniformMatrix2x4fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*32') }}});
}
},
glUniformMatrix4x2fv__sig: 'viiii',
glUniformMatrix4x2fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix4x2fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix4x2fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix4x2fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*8);
} else {
GLctx.uniformMatrix4x2fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*32') }}});
}
},
glUniformMatrix3x4fv__sig: 'viiii',
glUniformMatrix3x4fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix3x4fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix3x4fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix3x4fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*12);
} else {
GLctx.uniformMatrix3x4fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*48') }}});
}
},
glUniformMatrix4x3fv__sig: 'viiii',
glUniformMatrix4x3fv: function(location, count, transpose, value) {
#if GL_ASSERTIONS
GL.validateGLObjectID(GL.uniforms, location, 'glUniformMatrix4x3fv', 'location');
assert((value & 3) == 0, 'Pointer to float data passed to glUniformMatrix4x3fv must be aligned to four bytes!');
#endif
if (GL.currentContext.supportsWebGL2EntryPoints) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.uniformMatrix4x3fv(GL.uniforms[location], !!transpose, HEAPF32, value>>2, count*12);
} else {
GLctx.uniformMatrix4x3fv(GL.uniforms[location], !!transpose, {{{ makeHEAPView('F32', 'value', 'value+count*48') }}});
}
},
glVertexAttribI4iv__sig: 'vii',
glVertexAttribI4iv: function(index, v) {
#if GL_ASSERTIONS
assert((v & 3) == 0, 'Pointer to integer data passed to glVertexAttribI4iv must be aligned to four bytes!');
assert(v != 0, 'Null pointer passed to glVertexAttribI4iv!');
#endif
GLctx.vertexAttribI4i(index, HEAP32[v>>2], HEAP32[v+4>>2], HEAP32[v+8>>2], HEAP32[v+12>>2]);
},