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mobile/gl/types.go
David Crawshaw 3bd69d3fcc go.mobile/gl: tracing debug mode 
Compiling a binary with "-tags gldebug" will add log
tracing to each GL function call. This is the best I
can offer in lieu of of real error handling.

A colleague has accused me of Aspect-oriented
programming. The wikipedia article on the topic lost
me in the first paragraph, so just for the record,
this was inspired by the way the cover tool rewrites
source code.

LGTM=sameer
R=golang-codereviews, sameer
CC=golang-codereviews
https://golang.org/cl/128640043
2014-08-26 10:03:00 -04:00

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gl
//#cgo darwin LDFLAGS: -framework OpenGL
//#cgo linux LDFLAGS: -lGLESv2
//#include "gl2.h"
import "C"
import
/*
Partially generated from the Khronos OpenGL API specification in XML
format, which is covered by the license:
Copyright (c) 2013-2014 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Materials.
THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/"fmt"
const (
POINTS = 0x0000
LINES = 0x0001
LINE_LOOP = 0x0002
LINE_STRIP = 0x0003
TRIANGLES = 0x0004
TRIANGLE_STRIP = 0x0005
TRIANGLE_FAN = 0x0006
SRC_COLOR = 0x0300
ONE_MINUS_SRC_COLOR = 0x0301
SRC_ALPHA = 0x0302
ONE_MINUS_SRC_ALPHA = 0x0303
DST_ALPHA = 0x0304
ONE_MINUS_DST_ALPHA = 0x0305
DST_COLOR = 0x0306
ONE_MINUS_DST_COLOR = 0x0307
SRC_ALPHA_SATURATE = 0x0308
FUNC_ADD = 0x8006
BLEND_EQUATION = 0x8009
BLEND_EQUATION_RGB = 0x8009
BLEND_EQUATION_ALPHA = 0x883D
FUNC_SUBTRACT = 0x800A
FUNC_REVERSE_SUBTRACT = 0x800B
BLEND_DST_RGB = 0x80C8
BLEND_SRC_RGB = 0x80C9
BLEND_DST_ALPHA = 0x80CA
BLEND_SRC_ALPHA = 0x80CB
CONSTANT_COLOR = 0x8001
ONE_MINUS_CONSTANT_COLOR = 0x8002
CONSTANT_ALPHA = 0x8003
ONE_MINUS_CONSTANT_ALPHA = 0x8004
BLEND_COLOR = 0x8005
ARRAY_BUFFER = 0x8892
ELEMENT_ARRAY_BUFFER = 0x8893
ARRAY_BUFFER_BINDING = 0x8894
ELEMENT_ARRAY_BUFFER_BINDING = 0x8895
STREAM_DRAW = 0x88E0
STATIC_DRAW = 0x88E4
DYNAMIC_DRAW = 0x88E8
BUFFER_SIZE = 0x8764
BUFFER_USAGE = 0x8765
CURRENT_VERTEX_ATTRIB = 0x8626
FRONT = 0x0404
BACK = 0x0405
FRONT_AND_BACK = 0x0408
TEXTURE_2D = 0x0DE1
CULL_FACE = 0x0B44
BLEND = 0x0BE2
DITHER = 0x0BD0
STENCIL_TEST = 0x0B90
DEPTH_TEST = 0x0B71
SCISSOR_TEST = 0x0C11
POLYGON_OFFSET_FILL = 0x8037
SAMPLE_ALPHA_TO_COVERAGE = 0x809E
SAMPLE_COVERAGE = 0x80A0
INVALID_ENUM = 0x0500
INVALID_VALUE = 0x0501
INVALID_OPERATION = 0x0502
OUT_OF_MEMORY = 0x0505
CW = 0x0900
CCW = 0x0901
LINE_WIDTH = 0x0B21
ALIASED_POINT_SIZE_RANGE = 0x846D
ALIASED_LINE_WIDTH_RANGE = 0x846E
CULL_FACE_MODE = 0x0B45
FRONT_FACE = 0x0B46
DEPTH_RANGE = 0x0B70
DEPTH_WRITEMASK = 0x0B72
DEPTH_CLEAR_VALUE = 0x0B73
DEPTH_FUNC = 0x0B74
STENCIL_CLEAR_VALUE = 0x0B91
STENCIL_FUNC = 0x0B92
STENCIL_FAIL = 0x0B94
STENCIL_PASS_DEPTH_FAIL = 0x0B95
STENCIL_PASS_DEPTH_PASS = 0x0B96
STENCIL_REF = 0x0B97
STENCIL_VALUE_MASK = 0x0B93
STENCIL_WRITEMASK = 0x0B98
STENCIL_BACK_FUNC = 0x8800
STENCIL_BACK_FAIL = 0x8801
STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802
STENCIL_BACK_PASS_DEPTH_PASS = 0x8803
STENCIL_BACK_REF = 0x8CA3
STENCIL_BACK_VALUE_MASK = 0x8CA4
STENCIL_BACK_WRITEMASK = 0x8CA5
VIEWPORT = 0x0BA2
SCISSOR_BOX = 0x0C10
COLOR_CLEAR_VALUE = 0x0C22
COLOR_WRITEMASK = 0x0C23
UNPACK_ALIGNMENT = 0x0CF5
PACK_ALIGNMENT = 0x0D05
MAX_TEXTURE_SIZE = 0x0D33
MAX_VIEWPORT_DIMS = 0x0D3A
SUBPIXEL_BITS = 0x0D50
RED_BITS = 0x0D52
GREEN_BITS = 0x0D53
BLUE_BITS = 0x0D54
ALPHA_BITS = 0x0D55
DEPTH_BITS = 0x0D56
STENCIL_BITS = 0x0D57
POLYGON_OFFSET_UNITS = 0x2A00
POLYGON_OFFSET_FACTOR = 0x8038
TEXTURE_BINDING_2D = 0x8069
SAMPLE_BUFFERS = 0x80A8
SAMPLES = 0x80A9
SAMPLE_COVERAGE_VALUE = 0x80AA
SAMPLE_COVERAGE_INVERT = 0x80AB
NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2
COMPRESSED_TEXTURE_FORMATS = 0x86A3
DONT_CARE = 0x1100
FASTEST = 0x1101
NICEST = 0x1102
GENERATE_MIPMAP_HINT = 0x8192
BYTE = 0x1400
UNSIGNED_BYTE = 0x1401
SHORT = 0x1402
UNSIGNED_SHORT = 0x1403
INT = 0x1404
UNSIGNED_INT = 0x1405
FLOAT = 0x1406
FIXED = 0x140C
DEPTH_COMPONENT = 0x1902
ALPHA = 0x1906
RGB = 0x1907
RGBA = 0x1908
LUMINANCE = 0x1909
LUMINANCE_ALPHA = 0x190A
UNSIGNED_SHORT_4_4_4_4 = 0x8033
UNSIGNED_SHORT_5_5_5_1 = 0x8034
UNSIGNED_SHORT_5_6_5 = 0x8363
MAX_VERTEX_ATTRIBS = 0x8869
MAX_VERTEX_UNIFORM_VECTORS = 0x8DFB
MAX_VARYING_VECTORS = 0x8DFC
MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D
MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C
MAX_TEXTURE_IMAGE_UNITS = 0x8872
MAX_FRAGMENT_UNIFORM_VECTORS = 0x8DFD
SHADER_TYPE = 0x8B4F
DELETE_STATUS = 0x8B80
LINK_STATUS = 0x8B82
VALIDATE_STATUS = 0x8B83
ATTACHED_SHADERS = 0x8B85
ACTIVE_UNIFORMS = 0x8B86
ACTIVE_UNIFORM_MAX_LENGTH = 0x8B87
ACTIVE_ATTRIBUTES = 0x8B89
ACTIVE_ATTRIBUTE_MAX_LENGTH = 0x8B8A
SHADING_LANGUAGE_VERSION = 0x8B8C
CURRENT_PROGRAM = 0x8B8D
NEVER = 0x0200
LESS = 0x0201
EQUAL = 0x0202
LEQUAL = 0x0203
GREATER = 0x0204
NOTEQUAL = 0x0205
GEQUAL = 0x0206
ALWAYS = 0x0207
KEEP = 0x1E00
REPLACE = 0x1E01
INCR = 0x1E02
DECR = 0x1E03
INVERT = 0x150A
INCR_WRAP = 0x8507
DECR_WRAP = 0x8508
VENDOR = 0x1F00
RENDERER = 0x1F01
VERSION = 0x1F02
EXTENSIONS = 0x1F03
NEAREST = 0x2600
LINEAR = 0x2601
NEAREST_MIPMAP_NEAREST = 0x2700
LINEAR_MIPMAP_NEAREST = 0x2701
NEAREST_MIPMAP_LINEAR = 0x2702
LINEAR_MIPMAP_LINEAR = 0x2703
TEXTURE_MAG_FILTER = 0x2800
TEXTURE_MIN_FILTER = 0x2801
TEXTURE_WRAP_S = 0x2802
TEXTURE_WRAP_T = 0x2803
TEXTURE = 0x1702
TEXTURE_CUBE_MAP = 0x8513
TEXTURE_BINDING_CUBE_MAP = 0x8514
TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515
TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516
TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517
TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518
TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519
TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851A
MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C
TEXTURE0 = 0x84C0
TEXTURE1 = 0x84C1
TEXTURE2 = 0x84C2
TEXTURE3 = 0x84C3
TEXTURE4 = 0x84C4
TEXTURE5 = 0x84C5
TEXTURE6 = 0x84C6
TEXTURE7 = 0x84C7
TEXTURE8 = 0x84C8
TEXTURE9 = 0x84C9
TEXTURE10 = 0x84CA
TEXTURE11 = 0x84CB
TEXTURE12 = 0x84CC
TEXTURE13 = 0x84CD
TEXTURE14 = 0x84CE
TEXTURE15 = 0x84CF
TEXTURE16 = 0x84D0
TEXTURE17 = 0x84D1
TEXTURE18 = 0x84D2
TEXTURE19 = 0x84D3
TEXTURE20 = 0x84D4
TEXTURE21 = 0x84D5
TEXTURE22 = 0x84D6
TEXTURE23 = 0x84D7
TEXTURE24 = 0x84D8
TEXTURE25 = 0x84D9
TEXTURE26 = 0x84DA
TEXTURE27 = 0x84DB
TEXTURE28 = 0x84DC
TEXTURE29 = 0x84DD
TEXTURE30 = 0x84DE
TEXTURE31 = 0x84DF
ACTIVE_TEXTURE = 0x84E0
REPEAT = 0x2901
CLAMP_TO_EDGE = 0x812F
MIRRORED_REPEAT = 0x8370
VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622
VERTEX_ATTRIB_ARRAY_SIZE = 0x8623
VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624
VERTEX_ATTRIB_ARRAY_TYPE = 0x8625
VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A
VERTEX_ATTRIB_ARRAY_POINTER = 0x8645
VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F
IMPLEMENTATION_COLOR_READ_TYPE = 0x8B9A
IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B
COMPILE_STATUS = 0x8B81
INFO_LOG_LENGTH = 0x8B84
SHADER_SOURCE_LENGTH = 0x8B88
SHADER_COMPILER = 0x8DFA
SHADER_BINARY_FORMATS = 0x8DF8
NUM_SHADER_BINARY_FORMATS = 0x8DF9
LOW_FLOAT = 0x8DF0
MEDIUM_FLOAT = 0x8DF1
HIGH_FLOAT = 0x8DF2
LOW_INT = 0x8DF3
MEDIUM_INT = 0x8DF4
HIGH_INT = 0x8DF5
FRAMEBUFFER = 0x8D40
RENDERBUFFER = 0x8D41
RGBA4 = 0x8056
RGB5_A1 = 0x8057
RGB565 = 0x8D62
DEPTH_COMPONENT16 = 0x81A5
STENCIL_INDEX8 = 0x8D48
RENDERBUFFER_WIDTH = 0x8D42
RENDERBUFFER_HEIGHT = 0x8D43
RENDERBUFFER_INTERNAL_FORMAT = 0x8D44
RENDERBUFFER_RED_SIZE = 0x8D50
RENDERBUFFER_GREEN_SIZE = 0x8D51
RENDERBUFFER_BLUE_SIZE = 0x8D52
RENDERBUFFER_ALPHA_SIZE = 0x8D53
RENDERBUFFER_DEPTH_SIZE = 0x8D54
RENDERBUFFER_STENCIL_SIZE = 0x8D55
FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0
FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1
FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2
FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3
COLOR_ATTACHMENT0 = 0x8CE0
DEPTH_ATTACHMENT = 0x8D00
STENCIL_ATTACHMENT = 0x8D20
FRAMEBUFFER_COMPLETE = 0x8CD5
FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6
FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7
FRAMEBUFFER_INCOMPLETE_DIMENSIONS = 0x8CD9
FRAMEBUFFER_UNSUPPORTED = 0x8CDD
FRAMEBUFFER_BINDING = 0x8CA6
RENDERBUFFER_BINDING = 0x8CA7
MAX_RENDERBUFFER_SIZE = 0x84E8
INVALID_FRAMEBUFFER_OPERATION = 0x0506
)
const (
DEPTH_BUFFER_BIT = 0x00000100
STENCIL_BUFFER_BIT = 0x00000400
COLOR_BUFFER_BIT = 0x00004000
)
const (
FLOAT_VEC2 = 0x8B50
FLOAT_VEC3 = 0x8B51
FLOAT_VEC4 = 0x8B52
INT_VEC2 = 0x8B53
INT_VEC3 = 0x8B54
INT_VEC4 = 0x8B55
BOOL = 0x8B56
BOOL_VEC2 = 0x8B57
BOOL_VEC3 = 0x8B58
BOOL_VEC4 = 0x8B59
FLOAT_MAT2 = 0x8B5A
FLOAT_MAT3 = 0x8B5B
FLOAT_MAT4 = 0x8B5C
SAMPLER_2D = 0x8B5E
SAMPLER_CUBE = 0x8B60
)
const (
FRAGMENT_SHADER = 0x8B30
VERTEX_SHADER = 0x8B31
)
const (
FALSE = 0
TRUE = 1
ZERO = 0
ONE = 1
NO_ERROR = 0
NONE = 0
)
// Attrib is an attribute index.
type Attrib uint
// Enum is equivalent to GLenum, and is normally used with one of the
// constants defined in this package.
type Enum uint32
// Program identifies a compiled shader program.
type Program uint32
// Shader identifies a GLSL shader.
type Shader uint32
// Buffer identifies a GL buffer object.
type Buffer uint32
// Framebuffer identifies a GL framebuffer.
type Framebuffer uint32
// A Renderbuffer is a GL object that holds an image in an internal format.
type Renderbuffer uint32
// A Texture identifies a GL texture unit.
type Texture uint32
// A Uniform identifies a GL uniform attribute value.
type Uniform int32
func (v Attrib) c() C.GLuint { return C.GLuint(v) }
func (v Enum) c() C.GLenum { return C.GLenum(v) }
func (v Program) c() C.GLuint { return C.GLuint(v) }
func (v Shader) c() C.GLuint { return C.GLuint(v) }
func (v Buffer) c() C.GLuint { return C.GLuint(v) }
func (v Framebuffer) c() C.GLuint { return C.GLuint(v) }
func (v Renderbuffer) c() C.GLuint { return C.GLuint(v) }
func (v Texture) c() C.GLuint { return C.GLuint(v) }
func (v Uniform) c() C.GLint { return C.GLint(v) }
func (v Attrib) String() string { return fmt.Sprintf("Attrib(%d)", v) }
func (v Program) String() string { return fmt.Sprintf("Program(%d)", v) }
func (v Shader) String() string { return fmt.Sprintf("Shader(%d)", v) }
func (v Buffer) String() string { return fmt.Sprintf("Buffer(%d)", v) }
func (v Framebuffer) String() string { return fmt.Sprintf("Framebuffer(%d)", v) }
func (v Renderbuffer) String() string { return fmt.Sprintf("Renderbuffer(%d)", v) }
func (v Texture) String() string { return fmt.Sprintf("Texture(%d)", v) }
func (v Uniform) String() string { return fmt.Sprintf("Uniform(%d)", v) }
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