WebGLRenderingContext.texImage2D() - Web APIs
possible values in both webgl1 and webgl2 format type channels bytes per pixel rgba unsigned_byte 4 4 rgb unsigned_byte 3 3 rgba unsigned_short_4_4_4_4 4 2 rgba unsigned_short_5_5_5_1 4 2 rgb unsigned_short_5_6_5 3 2 luminance_alpha unsigned_byte 2 2 luminance unsigned_byte 1 1 alpha unsigned_byte 1 1 other possible values in webgl2 for the versions of teximage2d that take an arraybufferview or a gli...
...possible values: gl.unsigned_byte: 8 bits per channel for gl.rgba gl.unsigned_short_5_6_5: 5 red bits, 6 green bits, 5 blue bits.
... gl.unsigned_short_4_4_4_4: 4 red bits, 4 green bits, 4 blue bits, 4 alpha bits.
...And 3 more matches

WebGL2RenderingContext.texSubImage3D() - Web APIs
possible values: gl.unsigned_byte: 8 bits per channel for gl.rgba gl.unsigned_short_5_6_5: 5 red bits, 6 green bits, 5 blue bits.
... gl.unsigned_short_4_4_4_4: 4 red bits, 4 green bits, 4 blue bits, 4 alpha bits.
... gl.unsigned_short_5_5_5_1: 5 red bits, 5 green bits, 5 blue bits, 1 alpha bit.
...And 2 more matches

WebGLRenderingContext.texSubImage2D() - Web APIs
possible values: gl.unsigned_byte: 8 bits per channel for gl.rgba gl.unsigned_short_5_6_5: 5 red bits, 6 green bits, 5 blue bits.
... gl.unsigned_short_4_4_4_4: 4 red bits, 4 green bits, 4 blue bits, 4 alpha bits.
... gl.unsigned_short_5_5_5_1: 5 red bits, 5 green bits, 5 blue bits, 1 alpha bit.
...And 2 more matches

Type conversion
target type source type ctypes.int16_t ctypes.int8_t ctypes.uint8_t ctypes.short ctypes.uint16_t ctypes.uint8_t ctypes.unsigned_short ctypes.short ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.unsigned_short ctypes.uint8_t ctypes.uint16_t ctypes.int32_t ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.uint16_t ctypes.short ctypes.unsigned_short ctypes.int ctypes.uint32_t ctypes.uint8_t ...
... ctypes.uint16_t ctypes.unsigned_short ctypes.unsigned_int ctypes.int ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.uint16_t ctypes.short ctypes.unsigned_short ctypes.int32_t ctypes.unsigned_int ctypes.uint8_t ctypes.uint16_t ctypes.unsigned_short ctypes.uint32_t ctypes.int64_t ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.uint16_t ctypes.short ctypes.unsigned_short ctypes.int32_t ctypes.uint32_t ctypes.int ctypes.unsigned_int ctypes.long_long ctypes.uint64_t ctypes.uint8_t ctypes.uint16_t ctypes.unsigned_short ctypes.uint32_t ...
... ctypes.unsigned_int ctypes.unsigned_long_long ctypes.long_long ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.uint16_t ctypes.short ctypes.unsigned_short ctypes.int32_t ctypes.uint32_t ctypes.int ctypes.unsigned_int ctypes.int64_t ctypes.unsigned_long_long ctypes.uint8_t ctypes.uint16_t ctypes.unsigned_short ctypes.uint32_t ctypes.unsigned_int ctypes.uint64_t ctypes.float32_t ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.uint16_t ctypes.short ctypes.unsigned_short ctypes.float64_t ctypes.int8_t ctypes.uint8_t ctypes.int16_t ctypes.ui...
...nt16_t ctypes.short ctypes.unsigned_short ctypes.int32_t ctypes.uint32_t ctypes.int ctypes.unsigned_int ctypes.float32_t ctypes.char ctypes.int8_t ctypes.signed_char ctypes.int8_t ctypes.unsigned_char ctypes.uint8_t ctypes.char16_t ctypes.uint8_t ctypes.uint16_t ctypes.unsigned_short var mystruct = ctypes.structtype("mystructtype", [ { "v": ctypes.int16_t } ])(); mystruct.v = ctypes.int8_t(10); console.log(mystruct.v.tostring()); // 10 mystruct.v = ctypes.int32_t(10); // throws error float types target type source converted value any float types js number (only if fits to the size) src pointer types target typ...

WebGL2RenderingContext.texImage3D() - Web APIs
possible values: gl.unsigned_byte: 8 bits per channel for gl.rgba gl.unsigned_short_5_6_5: 5 red bits, 6 green bits, 5 blue bits.
... gl.unsigned_short_4_4_4_4: 4 red bits, 4 green bits, 4 blue bits, 4 alpha bits.
... gl.unsigned_short_5_5_5_1: 5 red bits, 5 green bits, 5 blue bits, 1 alpha bit.
... gl.byte gl.unsigned_short gl.short gl.unsigned_int gl.int gl.half_float gl.float gl.unsigned_int_2_10_10_10_rev gl.unsigned_int_10f_11f_11f_rev gl.unsigned_int_5_9_9_9_rev gl.unsigned_int_24_8 gl.float_32_unsigned_int_24_8_rev (pixels must be null) source one of the following objects can be used as a pixel source for the texture: arraybufferview, imagebitmap, imagedata, htmlimageelement, htmlcanvaselement, htmlvideoelement.

WebGLRenderingContext.readPixels() - Web APIs
possible values: gl.unsigned_byte gl.unsigned_short_5_6_5 gl.unsigned_short_4_4_4_4 gl.unsigned_short_5_5_5_1 gl.float webgl2 adds gl.byte gl.unsigned_int_2_10_10_10_rev gl.half_float gl.short gl.unsigned_short gl.int gl.unsigned_int gl.unsigned_int_10f_11f_11f_rev gl.unsigned_int_5_9_9_9_rev pixels an arraybufferview object to read data into.
... uint16array for gl.unsigned_short_5_6_5, gl.unsigned_short_4_4_4_4, or gl.unsigned_short_5_5_5_1.
... a gl.invalid_operation error is thrown if type is gl.unsigned_short_5_6_5 and format is not gl.rgb.
... type is gl.unsigned_short_4_4_4_4 and format is not gl.rgba.

WebGLRenderingContext.vertexAttribPointer() - Web APIs
possible values: gl.byte: signed 8-bit integer, with values in [-128, 127] gl.short: signed 16-bit integer, with values in [-32768, 32767] gl.unsigned_byte: unsigned 8-bit integer, with values in [0, 255] gl.unsigned_short: unsigned 16-bit integer, with values in [0, 65535] gl.float: 32-bit ieee floating point number when using a webgl 2 context, the following values are available additionally: gl.half_float: 16-bit ieee floating point number normalized a glboolean specifying whether integer data values should be normalized into a certain range when being cast to a float.
... for types gl.unsigned_byte and gl.unsigned_short, normalizes the values to [0, 1] if true.
...texture coordinates, normalized to [0, 1] gl.vertexattribpointer(2, 2, gl.unsigned_short, true, 20, 16); gl.enablevertexattribarray(2); //set the attributes in the vertex shader to the same indices gl.bindattriblocation(shaderprogram, 0, 'position'); gl.bindattriblocation(shaderprogram, 1, 'normal'); gl.bindattriblocation(shaderprogram, 2, 'texuv'); //since the attribute indices have changed, we must re-link the shader //note that this will reset all uniforms that were previously se...
...aderprogram, 'position'); gl.vertexattribpointer(locposition, 3, gl.float, false, 20, 0); gl.enablevertexattribarray(locposition); const locnormal = gl.getattriblocation(shaderprogram, 'normal'); gl.vertexattribpointer(locnormal, 4, gl.byte, true, 20, 12); gl.enablevertexattribarray(locnormal); const loctexuv = gl.getattriblocation(shaderprogram, 'texuv'); gl.vertexattribpointer(loctexuv, 2, gl.unsigned_short, true, 20, 16); gl.enablevertexattribarray(loctexuv); specifications specification status comment webgl 1.0the definition of 'vertexattribpointer' in that specification.

ANGLE_instanced_arrays.drawElementsInstancedANGLE() - Web APIs
possible values are: gl.unsigned_byte gl.unsigned_short when using the oes_element_index_uint extension: gl.unsigned_int offset a glintptr specifying an offset in the element array buffer.
... examples var ext = gl.getextension('angle_instanced_arrays'); ext.drawelementsinstancedangle(gl.points, 2, gl.unsigned_short, 0, 4); specifications specification status comment angle_instanced_arraysthe definition of 'angle_instanced_arrays' in that specification.

WEBGL_depth_texture - Web APIs
the type parameter now accepts gl.unsigned_short, gl.unsigned_int, and ext.unsigned_int_24_8_webgl.
... examples var ext = gl.getextension('webgl_depth_texture'); gl.teximage2d(gl.texture_2d, 0, gl.depth_component, 512, 512, 0, gl.depth_component, gl.unsigned_short, null); specifications specification status comment webgl_depth_texturethe definition of 'webgl_depth_texture' in that specification.

WebGL2RenderingContext.drawElementsInstanced() - Web APIs
possible values are: gl.unsigned_byte gl.unsigned_short when using the oes_element_index_uint extension: gl.unsigned_int offset a glintptr specifying an offset in the element array buffer.
... examples gl.drawelementsinstanced(gl.points, 2, gl.unsigned_short, 0, 4); specifications specification status comment webgl 2.0the definition of 'drawelementsinstanced' in that specification.

WebGL constants - Web APIs
data types constant name value description byte 0x1400 unsigned_byte 0x1401 short 0x1402 unsigned_short 0x1403 int 0x1404 unsigned_int 0x1405 float 0x1406 pixel formats constant name value description depth_component 0x1902 alpha 0x1906 rgb 0x1907 rgba 0x1908 luminance 0x1909 luminance_alpha 0x190a pixel ty...
...pes constant name value description unsigned_byte 0x1401 unsigned_short_4_4_4_4 0x8033 unsigned_short_5_5_5_1 0x8034 unsigned_short_5_6_5 0x8363 shaders constants passed to webglrenderingcontext.createshader() or webglrenderingcontext.getshaderparameter() constant name value description fragment_shader 0x8b30 passed to createshader to define a fragment shader.

Using COM from js-ctypes
ctypes.default_abi : ctypes.stdcall_abi; // libraries let lib = ctypes.open('ole32.dll'); // types // simple types let byte = ctypes.unsigned_char; let dword = ctypes.unsigned_long; let long = ctypes.long; let lpvoid = ctypes.voidptr_t; let void = ctypes.void_t; let ulong = ctypes.unsigned_long; let ushort = ctypes.unsigned_short; let wchar = ctypes.jschar; // advanced types - based on simple types let hresult = long; let lpcwstr = wchar.ptr; // guess types - these just work i couldnt find a proper defintion for it let lpunknown = ctypes.voidptr_t; // structures // simple structures let guid = ctypes.structtype('guid', [ { 'data1': ulong }, { 'data2': ushort }, { 'data3': ushort }, { 'data4': byte.array(8) } ])...

ctypes
unsigned_short an unsigned short integer type that behaves like the corresponding c type on the platform.

WebGL2RenderingContext.drawRangeElements() - Web APIs
possible values are: gl.unsigned_byte gl.unsigned_short gl.unsigned_int offset a glintptr specifying an offset in the element array buffer.

WebGL2RenderingContext.vertexAttribIPointer() - Web APIs
must be one of: gl.byte, gl.unsigned_byte, gl.short, gl.unsigned_short, gl.int, or gl.unsigned_int.