Documentation
¶
Overview ¶
Package gls implements a loader of OpenGL functions for the platform and a Go binding for selected OpenGL functions. The binding maintains some cached state to minimize the number of C function calls. The OpenGL function loader is generated by the "glapi2go" tool by parsing the OpenGL "glcorearb.h" header file
This package also contains abstractions for some OpenGL object such as Program, Uniform, VBO and others.
Index ¶
- Constants
- func FormatSource(source string) string
- type AttribType
- type GLS
- func (gs *GLS) ActiveTexture(texture uint32)
- func (gs *GLS) AttachShader(program, shader uint32)
- func (gs *GLS) BindBuffer(target int, vbo uint32)
- func (gs *GLS) BindTexture(target int, tex uint32)
- func (gs *GLS) BindVertexArray(vao uint32)
- func (gs *GLS) BlendEquation(mode uint32)
- func (gs *GLS) BlendEquationSeparate(modeRGB uint32, modeAlpha uint32)
- func (gs *GLS) BlendFunc(sfactor, dfactor uint32)
- func (gs *GLS) BlendFuncSeparate(srcRGB uint32, dstRGB uint32, srcAlpha uint32, dstAlpha uint32)
- func (gs *GLS) BufferData(target uint32, size int, data interface{}, usage uint32)
- func (gs *GLS) CheckErrors() bool
- func (gs *GLS) Clear(mask uint)
- func (gs *GLS) ClearColor(r, g, b, a float32)
- func (gs *GLS) CompileShader(shader uint32)
- func (gs *GLS) CreateProgram() uint32
- func (gs *GLS) CreateShader(stype uint32) uint32
- func (gs *GLS) CullFace(mode uint32)
- func (gs *GLS) DeleteBuffers(bufs ...uint32)
- func (gs *GLS) DeleteProgram(program uint32)
- func (gs *GLS) DeleteShader(shader uint32)
- func (gs *GLS) DeleteTextures(tex ...uint32)
- func (gs *GLS) DeleteVertexArrays(vaos ...uint32)
- func (gs *GLS) DepthFunc(mode uint32)
- func (gs *GLS) DepthMask(flag bool)
- func (gs *GLS) Disable(cap int)
- func (gs *GLS) DrawArrays(mode uint32, first int32, count int32)
- func (gs *GLS) DrawBuffer(mode uint32)
- func (gs *GLS) DrawElements(mode uint32, count int32, itype uint32, start uint32)
- func (gs *GLS) Enable(cap int)
- func (gs *GLS) EnableVertexAttribArray(index uint32)
- func (gs *GLS) FrontFace(mode uint32)
- func (gs *GLS) GenBuffer() uint32
- func (gs *GLS) GenTexture() uint32
- func (gs *GLS) GenVertexArray() uint32
- func (gs *GLS) GenerateMipmap(target uint32)
- func (gs *GLS) GetAttribLocation(program uint32, name string) int32
- func (gs *GLS) GetProgramInfoLog(program uint32) string
- func (gs *GLS) GetProgramiv(program, pname uint32, params *int32)
- func (gs *GLS) GetShaderInfoLog(shader uint32) string
- func (gs *GLS) GetShaderiv(shader, pname uint32, params *int32)
- func (gs *GLS) GetString(name uint32) string
- func (gs *GLS) GetUniformLocation(program uint32, name string) int32
- func (gs *GLS) GetViewport() (x, y, width, height int32)
- func (gs *GLS) LineWidth(width float32)
- func (gs *GLS) LinkProgram(program uint32)
- func (gs *GLS) NewProgram() *Program
- func (gs *GLS) PolygonMode(face, mode uint32)
- func (gs *GLS) PolygonOffset(factor float32, units float32)
- func (gs *GLS) Scissor(x, y int32, width, height uint32)
- func (gs *GLS) SetCheckErrors(enable bool)
- func (gs *GLS) ShaderSource(shader uint32, src string)
- func (gs *GLS) Stats(s *Stats)
- func (gs *GLS) TexImage2D(target uint32, level int32, iformat int32, width int32, height int32, ...)
- func (gs *GLS) TexParameteri(target uint32, pname uint32, param int32)
- func (gs *GLS) Uniform1f(location int32, v0 float32)
- func (gs *GLS) Uniform1fv(location int32, count int32, v []float32)
- func (gs *GLS) Uniform1i(location int32, v0 int32)
- func (gs *GLS) Uniform2f(location int32, v0, v1 float32)
- func (gs *GLS) Uniform2fv(location int32, count int32, v *float32)
- func (gs *GLS) Uniform2fvUP(location int32, count int32, v unsafe.Pointer)
- func (gs *GLS) Uniform3f(location int32, v0, v1, v2 float32)
- func (gs *GLS) Uniform3fv(location int32, count int32, v *float32)
- func (gs *GLS) Uniform3fvUP(location int32, count int32, v unsafe.Pointer)
- func (gs *GLS) Uniform4f(location int32, v0, v1, v2, v3 float32)
- func (gs *GLS) Uniform4fv(location int32, count int32, v []float32)
- func (gs *GLS) Uniform4fvUP(location int32, count int32, v unsafe.Pointer)
- func (gs *GLS) UniformMatrix3fv(location int32, count int32, transpose bool, pm *float32)
- func (gs *GLS) UniformMatrix4fv(location int32, count int32, transpose bool, pm *float32)
- func (gs *GLS) UseProgram(prog *Program)
- func (gs *GLS) VertexAttribPointer(index uint32, size int32, xtype uint32, normalized bool, stride int32, ...)
- func (gs *GLS) Viewport(x, y, width, height int32)
- type Program
- func (prog *Program) AddShader(stype uint32, source string)
- func (prog *Program) Build() error
- func (prog *Program) CompileShader(stype uint32, source string) (uint32, error)
- func (prog *Program) DeleteShaders()
- func (prog *Program) GetAttribLocation(name string) int32
- func (prog *Program) GetUniformLocation(name string) int32
- func (prog *Program) Handle() uint32
- type ShaderDefines
- type Stats
- type Uniform
- type VBO
- func (vbo *VBO) AddAttrib(atype AttribType) *VBO
- func (vbo *VBO) AddAttribOffset(atype AttribType, byteOffset uint32) *VBO
- func (vbo *VBO) AddCustomAttrib(name string, itemSize int32) *VBO
- func (vbo *VBO) AddCustomAttribOffset(name string, itemSize int32, byteOffset uint32) *VBO
- func (vbo *VBO) Attrib(atype AttribType) *VBOattrib
- func (vbo *VBO) AttribAt(idx int) *VBOattrib
- func (vbo *VBO) AttribCount() int
- func (vbo *VBO) AttribName(name string) *VBOattrib
- func (vbo *VBO) AttribOffset(attribType AttribType) int
- func (vbo *VBO) AttribOffsetName(name string) int
- func (vbo *VBO) Attributes() []VBOattrib
- func (vbo *VBO) Buffer() *math32.ArrayF32
- func (vbo *VBO) Dispose()
- func (vbo *VBO) OperateOnVectors3(attribType AttribType, cb func(vec *math32.Vector3) bool)
- func (vbo *VBO) ReadTripleVectors3(attribType AttribType, cb func(vec1, vec2, vec3 math32.Vector3) bool)
- func (vbo *VBO) ReadVectors3(attribType AttribType, cb func(vec math32.Vector3) bool)
- func (vbo *VBO) SetBuffer(buffer math32.ArrayF32) *VBO
- func (vbo *VBO) SetUsage(usage uint32)
- func (vbo *VBO) Stride() int
- func (vbo *VBO) StrideSize() int
- func (vbo *VBO) Transfer(gs *GLS)
- func (vbo *VBO) Update()
- type VBOattrib
Constants ¶
const ( VERSION_1_0 = 1 DEPTH_BUFFER_BIT = 0x00000100 STENCIL_BUFFER_BIT = 0x00000400 COLOR_BUFFER_BIT = 0x00004000 FALSE = 0 TRUE = 1 POINTS = 0x0000 LINES = 0x0001 LINE_LOOP = 0x0002 LINE_STRIP = 0x0003 TRIANGLES = 0x0004 TRIANGLE_STRIP = 0x0005 TRIANGLE_FAN = 0x0006 QUADS = 0x0007 NEVER = 0x0200 LESS = 0x0201 EQUAL = 0x0202 LEQUAL = 0x0203 GREATER = 0x0204 NOTEQUAL = 0x0205 GEQUAL = 0x0206 ALWAYS = 0x0207 ZERO = 0 ONE = 1 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 NONE = 0 FRONT_LEFT = 0x0400 FRONT_RIGHT = 0x0401 BACK_LEFT = 0x0402 BACK_RIGHT = 0x0403 FRONT = 0x0404 BACK = 0x0405 LEFT = 0x0406 RIGHT = 0x0407 FRONT_AND_BACK = 0x0408 NO_ERROR = 0 INVALID_ENUM = 0x0500 INVALID_VALUE = 0x0501 INVALID_OPERATION = 0x0502 OUT_OF_MEMORY = 0x0505 CW = 0x0900 CCW = 0x0901 POINT_SIZE = 0x0B11 POINT_SIZE_RANGE = 0x0B12 POINT_SIZE_GRANULARITY = 0x0B13 LINE_SMOOTH = 0x0B20 LINE_WIDTH = 0x0B21 LINE_WIDTH_RANGE = 0x0B22 LINE_WIDTH_GRANULARITY = 0x0B23 POLYGON_MODE = 0x0B40 POLYGON_SMOOTH = 0x0B41 CULL_FACE = 0x0B44 CULL_FACE_MODE = 0x0B45 FRONT_FACE = 0x0B46 DEPTH_RANGE = 0x0B70 DEPTH_TEST = 0x0B71 DEPTH_WRITEMASK = 0x0B72 DEPTH_CLEAR_VALUE = 0x0B73 DEPTH_FUNC = 0x0B74 STENCIL_TEST = 0x0B90 STENCIL_CLEAR_VALUE = 0x0B91 STENCIL_FUNC = 0x0B92 STENCIL_VALUE_MASK = 0x0B93 STENCIL_FAIL = 0x0B94 STENCIL_PASS_DEPTH_FAIL = 0x0B95 STENCIL_PASS_DEPTH_PASS = 0x0B96 STENCIL_REF = 0x0B97 STENCIL_WRITEMASK = 0x0B98 VIEWPORT = 0x0BA2 DITHER = 0x0BD0 BLEND_DST = 0x0BE0 BLEND_SRC = 0x0BE1 BLEND = 0x0BE2 LOGIC_OP_MODE = 0x0BF0 DRAW_BUFFER = 0x0C01 READ_BUFFER = 0x0C02 SCISSOR_BOX = 0x0C10 SCISSOR_TEST = 0x0C11 COLOR_CLEAR_VALUE = 0x0C22 COLOR_WRITEMASK = 0x0C23 DOUBLEBUFFER = 0x0C32 STEREO = 0x0C33 LINE_SMOOTH_HINT = 0x0C52 POLYGON_SMOOTH_HINT = 0x0C53 UNPACK_SWAP_BYTES = 0x0CF0 UNPACK_LSB_FIRST = 0x0CF1 UNPACK_ROW_LENGTH = 0x0CF2 UNPACK_SKIP_ROWS = 0x0CF3 UNPACK_SKIP_PIXELS = 0x0CF4 UNPACK_ALIGNMENT = 0x0CF5 PACK_SWAP_BYTES = 0x0D00 PACK_LSB_FIRST = 0x0D01 PACK_ROW_LENGTH = 0x0D02 PACK_SKIP_ROWS = 0x0D03 PACK_SKIP_PIXELS = 0x0D04 PACK_ALIGNMENT = 0x0D05 MAX_TEXTURE_SIZE = 0x0D33 MAX_VIEWPORT_DIMS = 0x0D3A SUBPIXEL_BITS = 0x0D50 TEXTURE_1D = 0x0DE0 TEXTURE_2D = 0x0DE1 TEXTURE_WIDTH = 0x1000 TEXTURE_HEIGHT = 0x1001 TEXTURE_BORDER_COLOR = 0x1004 DONT_CARE = 0x1100 FASTEST = 0x1101 NICEST = 0x1102 BYTE = 0x1400 UNSIGNED_BYTE = 0x1401 SHORT = 0x1402 UNSIGNED_SHORT = 0x1403 INT = 0x1404 UNSIGNED_INT = 0x1405 FLOAT = 0x1406 STACK_OVERFLOW = 0x0503 STACK_UNDERFLOW = 0x0504 CLEAR = 0x1500 AND = 0x1501 AND_REVERSE = 0x1502 COPY = 0x1503 AND_INVERTED = 0x1504 NOOP = 0x1505 XOR = 0x1506 OR = 0x1507 NOR = 0x1508 EQUIV = 0x1509 INVERT = 0x150A OR_REVERSE = 0x150B COPY_INVERTED = 0x150C OR_INVERTED = 0x150D NAND = 0x150E SET = 0x150F TEXTURE = 0x1702 COLOR = 0x1800 DEPTH = 0x1801 STENCIL = 0x1802 STENCIL_INDEX = 0x1901 DEPTH_COMPONENT = 0x1902 RED = 0x1903 GREEN = 0x1904 BLUE = 0x1905 ALPHA = 0x1906 RGB = 0x1907 RGBA = 0x1908 POINT = 0x1B00 LINE = 0x1B01 FILL = 0x1B02 KEEP = 0x1E00 REPLACE = 0x1E01 INCR = 0x1E02 DECR = 0x1E03 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 REPEAT = 0x2901 VERSION_1_1 = 1 COLOR_LOGIC_OP = 0x0BF2 POLYGON_OFFSET_UNITS = 0x2A00 POLYGON_OFFSET_POINT = 0x2A01 POLYGON_OFFSET_LINE = 0x2A02 POLYGON_OFFSET_FILL = 0x8037 POLYGON_OFFSET_FACTOR = 0x8038 TEXTURE_BINDING_1D = 0x8068 TEXTURE_BINDING_2D = 0x8069 TEXTURE_INTERNAL_FORMAT = 0x1003 TEXTURE_RED_SIZE = 0x805C TEXTURE_GREEN_SIZE = 0x805D TEXTURE_BLUE_SIZE = 0x805E TEXTURE_ALPHA_SIZE = 0x805F DOUBLE = 0x140A PROXY_TEXTURE_1D = 0x8063 PROXY_TEXTURE_2D = 0x8064 R3_G3_B2 = 0x2A10 RGB4 = 0x804F RGB5 = 0x8050 RGB8 = 0x8051 RGB10 = 0x8052 RGB12 = 0x8053 RGB16 = 0x8054 RGBA2 = 0x8055 RGBA4 = 0x8056 RGB5_A1 = 0x8057 RGBA8 = 0x8058 RGB10_A2 = 0x8059 RGBA12 = 0x805A RGBA16 = 0x805B VERTEX_ARRAY = 0x8074 VERSION_1_2 = 1 UNSIGNED_BYTE_3_3_2 = 0x8032 UNSIGNED_SHORT_4_4_4_4 = 0x8033 UNSIGNED_SHORT_5_5_5_1 = 0x8034 UNSIGNED_INT_8_8_8_8 = 0x8035 UNSIGNED_INT_10_10_10_2 = 0x8036 TEXTURE_BINDING_3D = 0x806A PACK_SKIP_IMAGES = 0x806B PACK_IMAGE_HEIGHT = 0x806C UNPACK_SKIP_IMAGES = 0x806D UNPACK_IMAGE_HEIGHT = 0x806E TEXTURE_3D = 0x806F PROXY_TEXTURE_3D = 0x8070 TEXTURE_DEPTH = 0x8071 TEXTURE_WRAP_R = 0x8072 MAX_3D_TEXTURE_SIZE = 0x8073 UNSIGNED_BYTE_2_3_3_REV = 0x8362 UNSIGNED_SHORT_5_6_5 = 0x8363 UNSIGNED_SHORT_5_6_5_REV = 0x8364 UNSIGNED_SHORT_4_4_4_4_REV = 0x8365 UNSIGNED_SHORT_1_5_5_5_REV = 0x8366 UNSIGNED_INT_8_8_8_8_REV = 0x8367 UNSIGNED_INT_2_10_10_10_REV = 0x8368 BGR = 0x80E0 BGRA = 0x80E1 MAX_ELEMENTS_VERTICES = 0x80E8 MAX_ELEMENTS_INDICES = 0x80E9 CLAMP_TO_EDGE = 0x812F TEXTURE_MIN_LOD = 0x813A TEXTURE_MAX_LOD = 0x813B TEXTURE_BASE_LEVEL = 0x813C TEXTURE_MAX_LEVEL = 0x813D SMOOTH_POINT_SIZE_RANGE = 0x0B12 SMOOTH_POINT_SIZE_GRANULARITY = 0x0B13 SMOOTH_LINE_WIDTH_RANGE = 0x0B22 SMOOTH_LINE_WIDTH_GRANULARITY = 0x0B23 ALIASED_LINE_WIDTH_RANGE = 0x846E VERSION_1_3 = 1 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 MULTISAMPLE = 0x809D SAMPLE_ALPHA_TO_COVERAGE = 0x809E SAMPLE_ALPHA_TO_ONE = 0x809F SAMPLE_COVERAGE = 0x80A0 SAMPLE_BUFFERS = 0x80A8 SAMPLES = 0x80A9 SAMPLE_COVERAGE_VALUE = 0x80AA SAMPLE_COVERAGE_INVERT = 0x80AB 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 PROXY_TEXTURE_CUBE_MAP = 0x851B MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C COMPRESSED_RGB = 0x84ED COMPRESSED_RGBA = 0x84EE TEXTURE_COMPRESSION_HINT = 0x84EF TEXTURE_COMPRESSED_IMAGE_SIZE = 0x86A0 TEXTURE_COMPRESSED = 0x86A1 NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2 COMPRESSED_TEXTURE_FORMATS = 0x86A3 CLAMP_TO_BORDER = 0x812D VERSION_1_4 = 1 BLEND_DST_RGB = 0x80C8 BLEND_SRC_RGB = 0x80C9 BLEND_DST_ALPHA = 0x80CA BLEND_SRC_ALPHA = 0x80CB POINT_FADE_THRESHOLD_SIZE = 0x8128 DEPTH_COMPONENT16 = 0x81A5 DEPTH_COMPONENT24 = 0x81A6 DEPTH_COMPONENT32 = 0x81A7 MIRRORED_REPEAT = 0x8370 MAX_TEXTURE_LOD_BIAS = 0x84FD TEXTURE_LOD_BIAS = 0x8501 INCR_WRAP = 0x8507 DECR_WRAP = 0x8508 TEXTURE_DEPTH_SIZE = 0x884A TEXTURE_COMPARE_MODE = 0x884C TEXTURE_COMPARE_FUNC = 0x884D FUNC_ADD = 0x8006 FUNC_SUBTRACT = 0x800A FUNC_REVERSE_SUBTRACT = 0x800B MIN = 0x8007 MAX = 0x8008 CONSTANT_COLOR = 0x8001 ONE_MINUS_CONSTANT_COLOR = 0x8002 CONSTANT_ALPHA = 0x8003 ONE_MINUS_CONSTANT_ALPHA = 0x8004 VERSION_1_5 = 1 BUFFER_SIZE = 0x8764 BUFFER_USAGE = 0x8765 QUERY_COUNTER_BITS = 0x8864 CURRENT_QUERY = 0x8865 QUERY_RESULT = 0x8866 QUERY_RESULT_AVAILABLE = 0x8867 ARRAY_BUFFER = 0x8892 ELEMENT_ARRAY_BUFFER = 0x8893 ARRAY_BUFFER_BINDING = 0x8894 ELEMENT_ARRAY_BUFFER_BINDING = 0x8895 VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F READ_ONLY = 0x88B8 WRITE_ONLY = 0x88B9 READ_WRITE = 0x88BA BUFFER_ACCESS = 0x88BB BUFFER_MAPPED = 0x88BC BUFFER_MAP_POINTER = 0x88BD STREAM_DRAW = 0x88E0 STREAM_READ = 0x88E1 STREAM_COPY = 0x88E2 STATIC_DRAW = 0x88E4 STATIC_READ = 0x88E5 STATIC_COPY = 0x88E6 DYNAMIC_DRAW = 0x88E8 DYNAMIC_READ = 0x88E9 DYNAMIC_COPY = 0x88EA SAMPLES_PASSED = 0x8914 SRC1_ALPHA = 0x8589 VERSION_2_0 = 1 BLEND_EQUATION_RGB = 0x8009 VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622 VERTEX_ATTRIB_ARRAY_SIZE = 0x8623 VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624 VERTEX_ATTRIB_ARRAY_TYPE = 0x8625 CURRENT_VERTEX_ATTRIB = 0x8626 VERTEX_PROGRAM_POINT_SIZE = 0x8642 VERTEX_ATTRIB_ARRAY_POINTER = 0x8645 STENCIL_BACK_FUNC = 0x8800 STENCIL_BACK_FAIL = 0x8801 STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802 STENCIL_BACK_PASS_DEPTH_PASS = 0x8803 MAX_DRAW_BUFFERS = 0x8824 DRAW_BUFFER0 = 0x8825 DRAW_BUFFER1 = 0x8826 DRAW_BUFFER2 = 0x8827 DRAW_BUFFER3 = 0x8828 DRAW_BUFFER4 = 0x8829 DRAW_BUFFER5 = 0x882A DRAW_BUFFER6 = 0x882B DRAW_BUFFER7 = 0x882C DRAW_BUFFER8 = 0x882D DRAW_BUFFER9 = 0x882E DRAW_BUFFER10 = 0x882F DRAW_BUFFER11 = 0x8830 DRAW_BUFFER12 = 0x8831 DRAW_BUFFER13 = 0x8832 DRAW_BUFFER14 = 0x8833 DRAW_BUFFER15 = 0x8834 BLEND_EQUATION_ALPHA = 0x883D MAX_VERTEX_ATTRIBS = 0x8869 VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A MAX_TEXTURE_IMAGE_UNITS = 0x8872 FRAGMENT_SHADER = 0x8B30 VERTEX_SHADER = 0x8B31 MAX_FRAGMENT_UNIFORM_COMPONENTS = 0x8B49 MAX_VERTEX_UNIFORM_COMPONENTS = 0x8B4A MAX_VARYING_FLOATS = 0x8B4B MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D SHADER_TYPE = 0x8B4F 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_1D = 0x8B5D SAMPLER_2D = 0x8B5E SAMPLER_3D = 0x8B5F SAMPLER_CUBE = 0x8B60 SAMPLER_1D_SHADOW = 0x8B61 SAMPLER_2D_SHADOW = 0x8B62 DELETE_STATUS = 0x8B80 COMPILE_STATUS = 0x8B81 LINK_STATUS = 0x8B82 VALIDATE_STATUS = 0x8B83 INFO_LOG_LENGTH = 0x8B84 ATTACHED_SHADERS = 0x8B85 ACTIVE_UNIFORMS = 0x8B86 ACTIVE_UNIFORM_MAX_LENGTH = 0x8B87 SHADER_SOURCE_LENGTH = 0x8B88 ACTIVE_ATTRIBUTES = 0x8B89 ACTIVE_ATTRIBUTE_MAX_LENGTH = 0x8B8A FRAGMENT_SHADER_DERIVATIVE_HINT = 0x8B8B SHADING_LANGUAGE_VERSION = 0x8B8C CURRENT_PROGRAM = 0x8B8D POINT_SPRITE_COORD_ORIGIN = 0x8CA0 LOWER_LEFT = 0x8CA1 UPPER_LEFT = 0x8CA2 STENCIL_BACK_REF = 0x8CA3 STENCIL_BACK_VALUE_MASK = 0x8CA4 STENCIL_BACK_WRITEMASK = 0x8CA5 VERSION_2_1 = 1 PIXEL_PACK_BUFFER = 0x88EB PIXEL_UNPACK_BUFFER = 0x88EC PIXEL_PACK_BUFFER_BINDING = 0x88ED PIXEL_UNPACK_BUFFER_BINDING = 0x88EF FLOAT_MAT2x3 = 0x8B65 FLOAT_MAT2x4 = 0x8B66 FLOAT_MAT3x2 = 0x8B67 FLOAT_MAT3x4 = 0x8B68 FLOAT_MAT4x2 = 0x8B69 FLOAT_MAT4x3 = 0x8B6A SRGB = 0x8C40 SRGB8 = 0x8C41 SRGB_ALPHA = 0x8C42 SRGB8_ALPHA8 = 0x8C43 COMPRESSED_SRGB = 0x8C48 COMPRESSED_SRGB_ALPHA = 0x8C49 VERSION_3_0 = 1 COMPARE_REF_TO_TEXTURE = 0x884E CLIP_DISTANCE0 = 0x3000 CLIP_DISTANCE1 = 0x3001 CLIP_DISTANCE2 = 0x3002 CLIP_DISTANCE3 = 0x3003 CLIP_DISTANCE4 = 0x3004 CLIP_DISTANCE5 = 0x3005 CLIP_DISTANCE6 = 0x3006 CLIP_DISTANCE7 = 0x3007 MAX_CLIP_DISTANCES = 0x0D32 MAJOR_VERSION = 0x821B MINOR_VERSION = 0x821C NUM_EXTENSIONS = 0x821D CONTEXT_FLAGS = 0x821E COMPRESSED_RED = 0x8225 COMPRESSED_RG = 0x8226 CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT = 0x00000001 RGBA32F = 0x8814 RGB32F = 0x8815 RGBA16F = 0x881A RGB16F = 0x881B VERTEX_ATTRIB_ARRAY_INTEGER = 0x88FD MAX_ARRAY_TEXTURE_LAYERS = 0x88FF MIN_PROGRAM_TEXEL_OFFSET = 0x8904 MAX_PROGRAM_TEXEL_OFFSET = 0x8905 CLAMP_READ_COLOR = 0x891C FIXED_ONLY = 0x891D MAX_VARYING_COMPONENTS = 0x8B4B TEXTURE_1D_ARRAY = 0x8C18 PROXY_TEXTURE_1D_ARRAY = 0x8C19 TEXTURE_2D_ARRAY = 0x8C1A PROXY_TEXTURE_2D_ARRAY = 0x8C1B TEXTURE_BINDING_1D_ARRAY = 0x8C1C TEXTURE_BINDING_2D_ARRAY = 0x8C1D R11F_G11F_B10F = 0x8C3A UNSIGNED_INT_10F_11F_11F_REV = 0x8C3B RGB9_E5 = 0x8C3D UNSIGNED_INT_5_9_9_9_REV = 0x8C3E TEXTURE_SHARED_SIZE = 0x8C3F TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH = 0x8C76 TRANSFORM_FEEDBACK_BUFFER_MODE = 0x8C7F MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS = 0x8C80 TRANSFORM_FEEDBACK_VARYINGS = 0x8C83 TRANSFORM_FEEDBACK_BUFFER_START = 0x8C84 TRANSFORM_FEEDBACK_BUFFER_SIZE = 0x8C85 PRIMITIVES_GENERATED = 0x8C87 TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN = 0x8C88 RASTERIZER_DISCARD = 0x8C89 MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS = 0x8C8A MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS = 0x8C8B INTERLEAVED_ATTRIBS = 0x8C8C SEPARATE_ATTRIBS = 0x8C8D TRANSFORM_FEEDBACK_BUFFER = 0x8C8E TRANSFORM_FEEDBACK_BUFFER_BINDING = 0x8C8F RGBA32UI = 0x8D70 RGB32UI = 0x8D71 RGBA16UI = 0x8D76 RGB16UI = 0x8D77 RGBA8UI = 0x8D7C RGB8UI = 0x8D7D RGBA32I = 0x8D82 RGB32I = 0x8D83 RGBA16I = 0x8D88 RGB16I = 0x8D89 RGBA8I = 0x8D8E RGB8I = 0x8D8F RED_INTEGER = 0x8D94 GREEN_INTEGER = 0x8D95 BLUE_INTEGER = 0x8D96 RGB_INTEGER = 0x8D98 RGBA_INTEGER = 0x8D99 BGR_INTEGER = 0x8D9A BGRA_INTEGER = 0x8D9B SAMPLER_1D_ARRAY = 0x8DC0 SAMPLER_2D_ARRAY = 0x8DC1 SAMPLER_1D_ARRAY_SHADOW = 0x8DC3 SAMPLER_2D_ARRAY_SHADOW = 0x8DC4 SAMPLER_CUBE_SHADOW = 0x8DC5 UNSIGNED_INT_VEC2 = 0x8DC6 UNSIGNED_INT_VEC3 = 0x8DC7 UNSIGNED_INT_VEC4 = 0x8DC8 INT_SAMPLER_1D = 0x8DC9 INT_SAMPLER_2D = 0x8DCA INT_SAMPLER_3D = 0x8DCB INT_SAMPLER_CUBE = 0x8DCC INT_SAMPLER_1D_ARRAY = 0x8DCE INT_SAMPLER_2D_ARRAY = 0x8DCF UNSIGNED_INT_SAMPLER_1D = 0x8DD1 UNSIGNED_INT_SAMPLER_2D = 0x8DD2 UNSIGNED_INT_SAMPLER_3D = 0x8DD3 UNSIGNED_INT_SAMPLER_CUBE = 0x8DD4 UNSIGNED_INT_SAMPLER_1D_ARRAY = 0x8DD6 UNSIGNED_INT_SAMPLER_2D_ARRAY = 0x8DD7 QUERY_WAIT = 0x8E13 QUERY_NO_WAIT = 0x8E14 QUERY_BY_REGION_WAIT = 0x8E15 QUERY_BY_REGION_NO_WAIT = 0x8E16 BUFFER_ACCESS_FLAGS = 0x911F BUFFER_MAP_LENGTH = 0x9120 BUFFER_MAP_OFFSET = 0x9121 DEPTH_COMPONENT32F = 0x8CAC DEPTH32F_STENCIL8 = 0x8CAD FLOAT_32_UNSIGNED_INT_24_8_REV = 0x8DAD INVALID_FRAMEBUFFER_OPERATION = 0x0506 FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING = 0x8210 FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE = 0x8211 FRAMEBUFFER_ATTACHMENT_RED_SIZE = 0x8212 FRAMEBUFFER_ATTACHMENT_GREEN_SIZE = 0x8213 FRAMEBUFFER_ATTACHMENT_BLUE_SIZE = 0x8214 FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE = 0x8215 FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE = 0x8216 FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE = 0x8217 FRAMEBUFFER_DEFAULT = 0x8218 FRAMEBUFFER_UNDEFINED = 0x8219 DEPTH_STENCIL_ATTACHMENT = 0x821A MAX_RENDERBUFFER_SIZE = 0x84E8 DEPTH_STENCIL = 0x84F9 UNSIGNED_INT_24_8 = 0x84FA DEPTH24_STENCIL8 = 0x88F0 TEXTURE_STENCIL_SIZE = 0x88F1 TEXTURE_RED_TYPE = 0x8C10 TEXTURE_GREEN_TYPE = 0x8C11 TEXTURE_BLUE_TYPE = 0x8C12 TEXTURE_ALPHA_TYPE = 0x8C13 TEXTURE_DEPTH_TYPE = 0x8C16 UNSIGNED_NORMALIZED = 0x8C17 FRAMEBUFFER_BINDING = 0x8CA6 DRAW_FRAMEBUFFER_BINDING = 0x8CA6 RENDERBUFFER_BINDING = 0x8CA7 READ_FRAMEBUFFER = 0x8CA8 DRAW_FRAMEBUFFER = 0x8CA9 READ_FRAMEBUFFER_BINDING = 0x8CAA RENDERBUFFER_SAMPLES = 0x8CAB FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0 FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1 FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2 FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3 FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER = 0x8CD4 FRAMEBUFFER_COMPLETE = 0x8CD5 FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6 FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7 FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER = 0x8CDB FRAMEBUFFER_INCOMPLETE_READ_BUFFER = 0x8CDC FRAMEBUFFER_UNSUPPORTED = 0x8CDD MAX_COLOR_ATTACHMENTS = 0x8CDF COLOR_ATTACHMENT0 = 0x8CE0 COLOR_ATTACHMENT1 = 0x8CE1 COLOR_ATTACHMENT2 = 0x8CE2 COLOR_ATTACHMENT3 = 0x8CE3 COLOR_ATTACHMENT4 = 0x8CE4 COLOR_ATTACHMENT5 = 0x8CE5 COLOR_ATTACHMENT6 = 0x8CE6 COLOR_ATTACHMENT7 = 0x8CE7 COLOR_ATTACHMENT8 = 0x8CE8 COLOR_ATTACHMENT9 = 0x8CE9 COLOR_ATTACHMENT10 = 0x8CEA COLOR_ATTACHMENT11 = 0x8CEB COLOR_ATTACHMENT12 = 0x8CEC COLOR_ATTACHMENT13 = 0x8CED COLOR_ATTACHMENT14 = 0x8CEE COLOR_ATTACHMENT15 = 0x8CEF COLOR_ATTACHMENT16 = 0x8CF0 COLOR_ATTACHMENT17 = 0x8CF1 COLOR_ATTACHMENT18 = 0x8CF2 COLOR_ATTACHMENT19 = 0x8CF3 COLOR_ATTACHMENT20 = 0x8CF4 COLOR_ATTACHMENT21 = 0x8CF5 COLOR_ATTACHMENT22 = 0x8CF6 COLOR_ATTACHMENT23 = 0x8CF7 COLOR_ATTACHMENT24 = 0x8CF8 COLOR_ATTACHMENT25 = 0x8CF9 COLOR_ATTACHMENT26 = 0x8CFA COLOR_ATTACHMENT27 = 0x8CFB COLOR_ATTACHMENT28 = 0x8CFC COLOR_ATTACHMENT29 = 0x8CFD COLOR_ATTACHMENT30 = 0x8CFE COLOR_ATTACHMENT31 = 0x8CFF DEPTH_ATTACHMENT = 0x8D00 STENCIL_ATTACHMENT = 0x8D20 FRAMEBUFFER = 0x8D40 RENDERBUFFER = 0x8D41 RENDERBUFFER_WIDTH = 0x8D42 RENDERBUFFER_HEIGHT = 0x8D43 RENDERBUFFER_INTERNAL_FORMAT = 0x8D44 STENCIL_INDEX1 = 0x8D46 STENCIL_INDEX4 = 0x8D47 STENCIL_INDEX8 = 0x8D48 STENCIL_INDEX16 = 0x8D49 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_INCOMPLETE_MULTISAMPLE = 0x8D56 MAX_SAMPLES = 0x8D57 FRAMEBUFFER_SRGB = 0x8DB9 HALF_FLOAT = 0x140B MAP_READ_BIT = 0x0001 MAP_WRITE_BIT = 0x0002 MAP_INVALIDATE_RANGE_BIT = 0x0004 MAP_INVALIDATE_BUFFER_BIT = 0x0008 MAP_FLUSH_EXPLICIT_BIT = 0x0010 MAP_UNSYNCHRONIZED_BIT = 0x0020 COMPRESSED_RED_RGTC1 = 0x8DBB COMPRESSED_SIGNED_RED_RGTC1 = 0x8DBC COMPRESSED_RG_RGTC2 = 0x8DBD COMPRESSED_SIGNED_RG_RGTC2 = 0x8DBE RG = 0x8227 RG_INTEGER = 0x8228 R8 = 0x8229 R16 = 0x822A RG8 = 0x822B RG16 = 0x822C R16F = 0x822D R32F = 0x822E RG16F = 0x822F RG32F = 0x8230 R8I = 0x8231 R8UI = 0x8232 R16I = 0x8233 R16UI = 0x8234 R32I = 0x8235 R32UI = 0x8236 RG8I = 0x8237 RG8UI = 0x8238 RG16I = 0x8239 RG16UI = 0x823A RG32I = 0x823B RG32UI = 0x823C VERTEX_ARRAY_BINDING = 0x85B5 VERSION_3_1 = 1 SAMPLER_2D_RECT = 0x8B63 SAMPLER_2D_RECT_SHADOW = 0x8B64 SAMPLER_BUFFER = 0x8DC2 INT_SAMPLER_2D_RECT = 0x8DCD INT_SAMPLER_BUFFER = 0x8DD0 UNSIGNED_INT_SAMPLER_2D_RECT = 0x8DD5 UNSIGNED_INT_SAMPLER_BUFFER = 0x8DD8 TEXTURE_BUFFER = 0x8C2A MAX_TEXTURE_BUFFER_SIZE = 0x8C2B TEXTURE_BINDING_BUFFER = 0x8C2C TEXTURE_BUFFER_DATA_STORE_BINDING = 0x8C2D TEXTURE_RECTANGLE = 0x84F5 TEXTURE_BINDING_RECTANGLE = 0x84F6 PROXY_TEXTURE_RECTANGLE = 0x84F7 MAX_RECTANGLE_TEXTURE_SIZE = 0x84F8 R8_SNORM = 0x8F94 RG8_SNORM = 0x8F95 RGB8_SNORM = 0x8F96 RGBA8_SNORM = 0x8F97 R16_SNORM = 0x8F98 RG16_SNORM = 0x8F99 RGB16_SNORM = 0x8F9A RGBA16_SNORM = 0x8F9B SIGNED_NORMALIZED = 0x8F9C PRIMITIVE_RESTART = 0x8F9D PRIMITIVE_RESTART_INDEX = 0x8F9E COPY_READ_BUFFER = 0x8F36 COPY_WRITE_BUFFER = 0x8F37 UNIFORM_BUFFER = 0x8A11 UNIFORM_BUFFER_BINDING = 0x8A28 UNIFORM_BUFFER_START = 0x8A29 UNIFORM_BUFFER_SIZE = 0x8A2A MAX_VERTEX_UNIFORM_BLOCKS = 0x8A2B MAX_GEOMETRY_UNIFORM_BLOCKS = 0x8A2C MAX_FRAGMENT_UNIFORM_BLOCKS = 0x8A2D MAX_COMBINED_UNIFORM_BLOCKS = 0x8A2E MAX_UNIFORM_BUFFER_BINDINGS = 0x8A2F MAX_UNIFORM_BLOCK_SIZE = 0x8A30 MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS = 0x8A31 MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS = 0x8A32 MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS = 0x8A33 UNIFORM_BUFFER_OFFSET_ALIGNMENT = 0x8A34 ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH = 0x8A35 ACTIVE_UNIFORM_BLOCKS = 0x8A36 UNIFORM_TYPE = 0x8A37 UNIFORM_SIZE = 0x8A38 UNIFORM_NAME_LENGTH = 0x8A39 UNIFORM_BLOCK_INDEX = 0x8A3A UNIFORM_OFFSET = 0x8A3B UNIFORM_ARRAY_STRIDE = 0x8A3C UNIFORM_MATRIX_STRIDE = 0x8A3D UNIFORM_IS_ROW_MAJOR = 0x8A3E UNIFORM_BLOCK_BINDING = 0x8A3F UNIFORM_BLOCK_DATA_SIZE = 0x8A40 UNIFORM_BLOCK_NAME_LENGTH = 0x8A41 UNIFORM_BLOCK_ACTIVE_UNIFORMS = 0x8A42 UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES = 0x8A43 UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER = 0x8A44 UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER = 0x8A45 UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER = 0x8A46 INVALID_INDEX = 0xFFFFFFFF VERSION_3_2 = 1 CONTEXT_CORE_PROFILE_BIT = 0x00000001 CONTEXT_COMPATIBILITY_PROFILE_BIT = 0x00000002 LINES_ADJACENCY = 0x000A LINE_STRIP_ADJACENCY = 0x000B TRIANGLES_ADJACENCY = 0x000C TRIANGLE_STRIP_ADJACENCY = 0x000D PROGRAM_POINT_SIZE = 0x8642 MAX_GEOMETRY_TEXTURE_IMAGE_UNITS = 0x8C29 FRAMEBUFFER_ATTACHMENT_LAYERED = 0x8DA7 FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS = 0x8DA8 GEOMETRY_SHADER = 0x8DD9 GEOMETRY_VERTICES_OUT = 0x8916 GEOMETRY_INPUT_TYPE = 0x8917 GEOMETRY_OUTPUT_TYPE = 0x8918 MAX_GEOMETRY_UNIFORM_COMPONENTS = 0x8DDF MAX_GEOMETRY_OUTPUT_VERTICES = 0x8DE0 MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 0x8DE1 MAX_VERTEX_OUTPUT_COMPONENTS = 0x9122 MAX_GEOMETRY_INPUT_COMPONENTS = 0x9123 MAX_GEOMETRY_OUTPUT_COMPONENTS = 0x9124 MAX_FRAGMENT_INPUT_COMPONENTS = 0x9125 CONTEXT_PROFILE_MASK = 0x9126 DEPTH_CLAMP = 0x864F QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 0x8E4C FIRST_VERTEX_CONVENTION = 0x8E4D LAST_VERTEX_CONVENTION = 0x8E4E PROVOKING_VERTEX = 0x8E4F TEXTURE_CUBE_MAP_SEAMLESS = 0x884F MAX_SERVER_WAIT_TIMEOUT = 0x9111 OBJECT_TYPE = 0x9112 SYNC_CONDITION = 0x9113 SYNC_STATUS = 0x9114 SYNC_FLAGS = 0x9115 SYNC_FENCE = 0x9116 SYNC_GPU_COMMANDS_COMPLETE = 0x9117 UNSIGNALED = 0x9118 SIGNALED = 0x9119 ALREADY_SIGNALED = 0x911A TIMEOUT_EXPIRED = 0x911B CONDITION_SATISFIED = 0x911C WAIT_FAILED = 0x911D TIMEOUT_IGNORED = 0xFFFFFFFFFFFFFFFF SYNC_FLUSH_COMMANDS_BIT = 0x00000001 SAMPLE_POSITION = 0x8E50 SAMPLE_MASK = 0x8E51 SAMPLE_MASK_VALUE = 0x8E52 MAX_SAMPLE_MASK_WORDS = 0x8E59 TEXTURE_2D_MULTISAMPLE = 0x9100 PROXY_TEXTURE_2D_MULTISAMPLE = 0x9101 TEXTURE_2D_MULTISAMPLE_ARRAY = 0x9102 PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY = 0x9103 TEXTURE_BINDING_2D_MULTISAMPLE = 0x9104 TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY = 0x9105 TEXTURE_SAMPLES = 0x9106 TEXTURE_FIXED_SAMPLE_LOCATIONS = 0x9107 SAMPLER_2D_MULTISAMPLE = 0x9108 INT_SAMPLER_2D_MULTISAMPLE = 0x9109 UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE = 0x910A SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910B INT_SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910C UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910D MAX_COLOR_TEXTURE_SAMPLES = 0x910E MAX_DEPTH_TEXTURE_SAMPLES = 0x910F MAX_INTEGER_SAMPLES = 0x9110 VERSION_3_3 = 1 VERTEX_ATTRIB_ARRAY_DIVISOR = 0x88FE SRC1_COLOR = 0x88F9 ONE_MINUS_SRC1_COLOR = 0x88FA ONE_MINUS_SRC1_ALPHA = 0x88FB MAX_DUAL_SOURCE_DRAW_BUFFERS = 0x88FC ANY_SAMPLES_PASSED = 0x8C2F SAMPLER_BINDING = 0x8919 RGB10_A2UI = 0x906F TEXTURE_SWIZZLE_R = 0x8E42 TEXTURE_SWIZZLE_G = 0x8E43 TEXTURE_SWIZZLE_B = 0x8E44 TEXTURE_SWIZZLE_A = 0x8E45 TEXTURE_SWIZZLE_RGBA = 0x8E46 TIME_ELAPSED = 0x88BF TIMESTAMP = 0x8E28 INT_2_10_10_10_REV = 0x8D9F )
const ( FrontSide = iota + 1 BackSide DoubleSide )
Polygon side view.
const ( Undefined = AttribType(iota) VertexPosition VertexNormal VertexTangent VertexColor VertexTexcoord VertexTexcoord2 SkinWeight SkinIndex )
const (
FloatSize = int32(unsafe.Sizeof(float32(0)))
)
Variables ¶
This section is empty.
Functions ¶
func FormatSource ¶
FormatSource returns the supplied program source code with line numbers prepended.
Types ¶
type GLS ¶
type GLS struct {
// contains filtered or unexported fields
}
GLS encapsulates the state of an OpenGL context and contains methods to call OpenGL functions.
func New ¶
New creates and returns a new instance of a GLS object, which encapsulates the state of an OpenGL context. This should be called only after an active OpenGL context is established, such as by creating a new window.
func (*GLS) ActiveTexture ¶
ActiveTexture selects which texture unit subsequent texture state calls will affect. The number of texture units an implementation supports is implementation dependent, but must be at least 48 in GL 3.3.
func (*GLS) AttachShader ¶
AttachShader attaches the specified shader object to the specified program object.
func (*GLS) BindBuffer ¶
BindBuffer binds a buffer object to the specified buffer binding point.
func (*GLS) BindTexture ¶
BindTexture lets you create or use a named texture.
func (*GLS) BindVertexArray ¶
BindVertexArray binds the vertex array object.
func (*GLS) BlendEquation ¶
BlendEquation sets the blend equations for all draw buffers.
func (*GLS) BlendEquationSeparate ¶
BlendEquationSeparate sets the blend equations for all draw buffers allowing different equations for the RGB and alpha components.
func (*GLS) BlendFunc ¶
BlendFunc defines the operation of blending for all draw buffers when blending is enabled.
func (*GLS) BlendFuncSeparate ¶
BlendFuncSeparate defines the operation of blending for all draw buffers when blending is enabled, allowing different operations for the RGB and alpha components.
func (*GLS) BufferData ¶
BufferData creates a new data store for the buffer object currently bound to target, deleting any pre-existing data store.
func (*GLS) CheckErrors ¶
CheckErrors returns if error checking is enabled or not.
func (*GLS) Clear ¶
Clear sets the bitplane area of the window to values previously selected by ClearColor, ClearDepth, and ClearStencil.
func (*GLS) ClearColor ¶
ClearColor specifies the red, green, blue, and alpha values used by glClear to clear the color buffers.
func (*GLS) CompileShader ¶
CompileShader compiles the source code strings that have been stored in the specified shader object.
func (*GLS) CreateProgram ¶
CreateProgram creates an empty program object and returns a non-zero value by which it can be referenced.
func (*GLS) CreateShader ¶
CreateShader creates an empty shader object and returns a non-zero value by which it can be referenced.
func (*GLS) DeleteBuffers ¶
DeleteBuffers deletes nbuffer objects named by the elements of the provided array.
func (*GLS) DeleteProgram ¶
DeleteProgram frees the memory and invalidates the name associated with the specified program object.
func (*GLS) DeleteShader ¶
DeleteShader frees the memory and invalidates the name associated with the specified shader object.
func (*GLS) DeleteTextures ¶
DeleteTextures deletes ntextures named by the elements of the provided array.
func (*GLS) DeleteVertexArrays ¶
DeleteVertexArrays deletes nvertex array objects named by the elements of the provided array.
func (*GLS) DepthFunc ¶
DepthFunc specifies the function used to compare each incoming pixel depth value with the depth value present in the depth buffer.
func (*GLS) DrawArrays ¶
DrawArrays renders primitives from array data.
func (*GLS) DrawBuffer ¶
DrawBuffer specifies which color buffers are to be drawn into.
func (*GLS) DrawElements ¶
DrawElements renders primitives from array data.
func (*GLS) EnableVertexAttribArray ¶
EnableVertexAttribArray enables a generic vertex attribute array.
func (*GLS) GenTexture ¶
GenTexture generates a texture object name.
func (*GLS) GenVertexArray ¶
GenVertexArray generates a vertex array object name.
func (*GLS) GenerateMipmap ¶
GenerateMipmap generates mipmaps for the specified texture target.
func (*GLS) GetAttribLocation ¶
GetAttribLocation returns the location of the specified attribute variable.
func (*GLS) GetProgramInfoLog ¶
GetProgramInfoLog returns the information log for the specified program object.
func (*GLS) GetProgramiv ¶
GetProgramiv returns the specified parameter from the specified program object.
func (*GLS) GetShaderInfoLog ¶
GetShaderInfoLog returns the information log for the specified shader object.
func (*GLS) GetShaderiv ¶
GetShaderiv returns the specified parameter from the specified shader object.
func (*GLS) GetString ¶
GetString returns a string describing the specified aspect of the current GL connection.
func (*GLS) GetUniformLocation ¶
GetUniformLocation returns the location of a uniform variable for the specified program.
func (*GLS) GetViewport ¶
GetViewport returns the current viewport information.
func (*GLS) LineWidth ¶
LineWidth specifies the rasterized width of both aliased and antialiased lines.
func (*GLS) LinkProgram ¶
LinkProgram links the specified program object.
func (*GLS) NewProgram ¶
NewProgram creates and returns a new empty shader program object. Use this type methods to add shaders and build the final program.
func (*GLS) PolygonMode ¶
PolygonMode controls the interpretation of polygons for rasterization.
func (*GLS) PolygonOffset ¶
PolygonOffset sets the scale and units used to calculate depth values.
func (*GLS) SetCheckErrors ¶
SetCheckErrors enables/disables checking for errors after the call of any OpenGL function. It is enabled by default but could be disabled after an application is stable to improve the performance.
func (*GLS) ShaderSource ¶
ShaderSource sets the source code for the specified shader object.
func (*GLS) Stats ¶
Stats copy the current values of the internal statistics structure to the specified pointer.
func (*GLS) TexImage2D ¶
func (gs *GLS) TexImage2D(target uint32, level int32, iformat int32, width int32, height int32, border int32, format uint32, itype uint32, data interface{})
TexImage2D specifies a two-dimensional texture image.
func (*GLS) TexParameteri ¶
TexParameteri sets the specified texture parameter on the specified texture.
func (*GLS) Uniform1f ¶
Uniform1f sets the value of a float uniform variable for the current program object.
func (*GLS) Uniform1fv ¶
Uniform1fv sets the value of one or many float uniform variables for the current program object.
func (*GLS) Uniform1i ¶
Uniform1i sets the value of an int uniform variable for the current program object.
func (*GLS) Uniform2f ¶
Uniform2f sets the value of a vec2 uniform variable for the current program object.
func (*GLS) Uniform2fv ¶
Uniform2fv sets the value of one or many vec2 uniform variables for the current program object.
func (*GLS) Uniform2fvUP ¶
func (*GLS) Uniform3f ¶
Uniform3f sets the value of a vec3 uniform variable for the current program object.
func (*GLS) Uniform3fv ¶
Uniform3fv sets the value of one or many vec3 uniform variables for the current program object.
func (*GLS) Uniform3fvUP ¶
func (*GLS) Uniform4f ¶
Uniform4f sets the value of a vec4 uniform variable for the current program object.
func (*GLS) Uniform4fv ¶
Uniform4fv sets the value of one or many vec4 uniform variables for the current program object.
func (*GLS) Uniform4fvUP ¶
func (*GLS) UniformMatrix3fv ¶
UniformMatrix3fv sets the value of one or many 3x3 float matrices for the current program object.
func (*GLS) UniformMatrix4fv ¶
UniformMatrix4fv sets the value of one or many 4x4 float matrices for the current program object.
func (*GLS) UseProgram ¶
UseProgram sets the specified program as the current program.
type Program ¶
type Program struct {
ShowSource bool // Show source code in error messages
// contains filtered or unexported fields
}
Program represents an OpenGL program. It must have Vertex and Fragment shaders. It can also have a Geometry shader.
func (*Program) AddShader ¶
AddShader adds a shader to this program. This must be done before the program is built.
func (*Program) Build ¶
Build builds the program, compiling and linking the previously supplied shaders.
func (*Program) CompileShader ¶
CompileShader creates and compiles an OpenGL shader of the specified type, with the specified source code, and returns a non-zero value by which it can be referenced.
func (*Program) DeleteShaders ¶
func (prog *Program) DeleteShaders()
DeleteShaders deletes all of this program's shaders from OpenGL.
func (*Program) GetAttribLocation ¶
GetAttribLocation returns the location of the specified attribute in this program. This location is internally cached.
func (*Program) GetUniformLocation ¶
GetUniformLocation returns the location of the specified uniform in this program. This location is internally cached.
type ShaderDefines ¶
ShaderDefines is a store of shader defines ("#define <key> <value>").
func NewShaderDefines ¶
func NewShaderDefines() *ShaderDefines
NewShaderDefines creates and returns a pointer to a ShaderDefines object.
func (*ShaderDefines) Add ¶
func (sd *ShaderDefines) Add(other *ShaderDefines)
Add adds to this ShaderDefines all the key-value pairs in the specified ShaderDefines.
func (*ShaderDefines) Equals ¶
func (sd *ShaderDefines) Equals(other *ShaderDefines) bool
Equals compares two ShaderDefines and return true if they contain the same key-value pairs.
func (*ShaderDefines) Set ¶
func (sd *ShaderDefines) Set(name, value string)
Set sets a shader define with the specified value.
func (*ShaderDefines) Unset ¶
func (sd *ShaderDefines) Unset(name string)
Unset removes the specified name from the shader defines.
type Stats ¶
type Stats struct {
Shaders int // Current number of shader programs
Vaos int // Number of Vertex Array Objects
Buffers int // Number of Buffer Objects
Textures int // Number of Textures
Caphits uint64 // Cumulative number of hits for Enable/Disable
UnilocHits uint64 // Cumulative number of uniform location cache hits
UnilocMiss uint64 // Cumulative number of uniform location cache misses
Unisets uint64 // Cumulative number of uniform sets
Drawcalls uint64 // Cumulative number of draw calls
}
Stats contains counters of OpenGL resources being used as well the cumulative numbers of some OpenGL calls for performance evaluation.
type Uniform ¶
type Uniform struct {
// contains filtered or unexported fields
}
Uniform represents an OpenGL uniform.
func (*Uniform) Location ¶
Location returns the location of this uniform for the current shader program. The returned location can be -1 if not found.
func (*Uniform) LocationIdx ¶
LocationIdx returns the location of this indexed uniform for the current shader program. The returned location can be -1 if not found.
type VBO ¶
type VBO struct {
// contains filtered or unexported fields
}
VBO abstracts an OpenGL Vertex Buffer Object.
func (*VBO) AddAttrib ¶
func (vbo *VBO) AddAttrib(atype AttribType) *VBO
AddAttrib adds a new attribute to the VBO with the specified type. The attribute's ByteOffset is computed automatically based on the existing attributes.
func (*VBO) AddAttribOffset ¶
func (vbo *VBO) AddAttribOffset(atype AttribType, byteOffset uint32) *VBO
AddAttribOffset adds a new attribute to the VBO with the specified type and byteOffset.
func (*VBO) AddCustomAttrib ¶
AddCustomAttrib adds a new attribute to the VBO with the specified name and itemSize.
func (*VBO) AddCustomAttribOffset ¶
AddCustomAttribOffset adds a new attribute to the VBO with the specified name, itemSize and byteOffset.
func (*VBO) Attrib ¶
func (vbo *VBO) Attrib(atype AttribType) *VBOattrib
Attrib finds and returns a pointer to the VBO attribute with the specified type. Returns nil if not found.
func (*VBO) AttribCount ¶
AttribCount returns the current number of attributes for this VBO.
func (*VBO) AttribName ¶
AttribName finds and returns a pointer to the VBO attribute with the specified name. Returns nil if not found.
func (*VBO) AttribOffset ¶
func (vbo *VBO) AttribOffset(attribType AttribType) int
AttribOffset returns the total number of elements from all attributes preceding the attribute specified by type.
func (*VBO) AttribOffsetName ¶
AttribOffsetName returns the total number of elements from all attributes preceding the attribute specified by name.
func (*VBO) Attributes ¶
Attributes returns the attributes for this VBO.
func (*VBO) Dispose ¶
func (vbo *VBO) Dispose()
Dispose disposes of the OpenGL resources used by the VBO. As currently the VBO is used only by Geometry objects it is not referenced counted.
func (*VBO) OperateOnVectors3 ¶
func (vbo *VBO) OperateOnVectors3(attribType AttribType, cb func(vec *math32.Vector3) bool)
OperateOnVectors3 iterates over all 3-float32 items for the specified attribute and calls the specified callback function with a pointer to each item as a Vector3. The vector pointers can be modified inside the callback and the modifications will be applied to the buffer at each iteration. The callback function returns false to continue or true to break.
func (*VBO) ReadTripleVectors3 ¶
func (vbo *VBO) ReadTripleVectors3(attribType AttribType, cb func(vec1, vec2, vec3 math32.Vector3) bool)
Read3Vectors3 iterates over all 3-float32 items (3 items at a time) for the specified attribute and calls the specified callback function with the value of each of the 3 items as Vector3. The callback function returns false to continue or true to break.
func (*VBO) ReadVectors3 ¶
func (vbo *VBO) ReadVectors3(attribType AttribType, cb func(vec math32.Vector3) bool)
ReadVectors3 iterates over all 3-float32 items for the specified attribute and calls the specified callback function with the value of each item as a Vector3. The callback function returns false to continue or true to break.
func (*VBO) SetUsage ¶
SetUsage sets the expected usage pattern of the buffer. The default value is GL_STATIC_DRAW.
func (*VBO) Stride ¶
Stride returns the stride of the VBO, which is the number of elements in one complete set of group attributes. E.g. for an interleaved VBO with two attributes: "VertexPosition" (3 elements) and "VertexTexcoord" (2 elements), the stride would be 5: [X, Y, Z, U, V], X, Y, Z, U, V, X, Y, Z, U, V... X, Y, Z, U, V.
func (*VBO) StrideSize ¶
StrideSize returns the number of bytes used by one complete set of group attributes. E.g. for an interleaved VBO with two attributes: "VertexPosition" (3 elements) and "VertexTexcoord" (2 elements), the stride would be 5: [X, Y, Z, U, V], X, Y, Z, U, V, X, Y, Z, U, V... X, Y, Z, U, V and the stride size would be: sizeof(float)*stride = 4*5 = 20
type VBOattrib ¶
type VBOattrib struct {
Type AttribType // Type of the attribute
Name string // Name of the attribute
ByteOffset uint32 // Byte offset from the start of the VBO
NumElements int32 // Number of elements
ElementType uint32 // Type of the element (e.g. FLOAT, INT, UNSIGNED_SHORT, etc...)
}
VBOattrib describes one attribute of an OpenGL Vertex Buffer Object.
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