1GLTEXSUBIMAGE1D(3G) [FIXME: manual] GLTEXSUBIMAGE1D(3G)
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6 glTexSubImage1D, glTextureSubImage1D - specify a one-dimensional
7 texture subimage
8
10 void glTexSubImage1D(GLenum target, GLint level, GLint xoffset,
11 GLsizei width, GLenum format, GLenum type,
12 const GLvoid * pixels);
13 void glTextureSubImage1D(GLuint texture, GLint level, GLint xoffset,
15 GLsizei width, GLenum format, GLenum type,
16 const void *pixels);
17
19 target
20 Specifies the target to which the texture is bound for
21 glTexSubImage1D. Must be GL_TEXTURE_1D.
22 texture
24 Specifies the texture object name for glTextureSubImage1D. The
25 effective target of texture must be one of the valid target values
26 above.
27 level
29 Specifies the level-of-detail number. Level 0 is the base image
30 level. Level n is the nth mipmap reduction image.
31 xoffset
33 Specifies a texel offset in the x direction within the texture
34 array.
35 width
37 Specifies the width of the texture subimage.
38 format
40 Specifies the format of the pixel data. The following symbolic
41 values are accepted: GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA,
42 GL_DEPTH_COMPONENT, and GL_STENCIL_INDEX.
43 type
45 Specifies the data type of the pixel data. The following symbolic
46 values are accepted: GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT,
47 GL_SHORT, GL_UNSIGNED_INT, GL_INT, GL_FLOAT,
48 GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV,
49 GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_5_6_5_REV,
50 GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV,
51 GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV,
52 GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV,
53 GL_UNSIGNED_INT_10_10_10_2, and GL_UNSIGNED_INT_2_10_10_10_REV.
54 pixels
56 Specifies a pointer to the image data in memory.
57
59 Texturing maps a portion of a specified texture image onto each
60 graphical primitive for which texturing is enabled. To enable or
61 disable one-dimensional texturing, call glEnable() and
62 glDisable with argument GL_TEXTURE_1D.
64 glTexSubImage1D and glTextureSubImage1D redefine a contiguous subregion
66 of an existing one-dimensional texture image. The texels referenced by
67 pixels replace the portion of the existing texture array with x indices
68 xoffset and xoffset + width - 1, inclusive. This region may not include
69 any texels outside the range of the texture array as it was originally
70 specified. It is not an error to specify a subtexture with width of 0,
71 but such a specification has no effect.
72 If a non-zero named buffer object is bound to the
74 GL_PIXEL_UNPACK_BUFFER target (see glBindBuffer()) while a texture
75 image is specified, pixels is treated as a byte offset into the buffer
76 object's data store.
77
79 glPixelStore() modes affect texture images.
80 glTexSubImage1D and glTextureSubImage1D specify a one-dimensional
82 subtexture for the current texture unit, specified with
83 glActiveTexture().
84 GL_STENCIL_INDEX is accepted for format only if the GL version is 4.4
86 or higher.
87
89 GL_INVALID_ENUM is generated if target or the effective target of
90 texture is not one of the allowable values.
91 GL_INVALID_OPERATION is generated by glTextureSubImage1D if texture is
93 not the name of an existing texture object.
94 GL_INVALID_ENUM is generated if format is not an accepted format
96 constant.
97 GL_INVALID_ENUM is generated if type is not a type constant.
99 GL_INVALID_VALUE is generated if level is less than 0.
101 GL_INVALID_VALUE may be generated if level is greater than log 2 max,
103 where max is the returned value of GL_MAX_TEXTURE_SIZE.
104 GL_INVALID_VALUE is generated if xoffset < - b, or if xoffset + width >
106 w - b, where w is the GL_TEXTURE_WIDTH, and b is the width of the
107 GL_TEXTURE_BORDER of the texture image being modified. Note that w
108 includes twice the border width.
109 GL_INVALID_VALUE is generated if width is less than 0.
111 GL_INVALID_OPERATION is generated if the texture array has not been
113 defined by a previous glTexImage1D() operation.
114 GL_INVALID_OPERATION is generated if type is one of
116 GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV,
117 GL_UNSIGNED_SHORT_5_6_5, or GL_UNSIGNED_SHORT_5_6_5_REV and format is
118 not GL_RGB.
119 GL_INVALID_OPERATION is generated if type is one of
121 GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV,
122 GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV,
123 GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV,
124 GL_UNSIGNED_INT_10_10_10_2, or GL_UNSIGNED_INT_2_10_10_10_REV and
125 format is neither GL_RGBA nor GL_BGRA.
126 GL_INVALID_OPERATION is generated if format is GL_STENCIL_INDEX and the
128 base internal format is not GL_STENCIL_INDEX.
129 GL_INVALID_OPERATION is generated if a non-zero buffer object name is
131 bound to the GL_PIXEL_UNPACK_BUFFER target and the buffer object's data
132 store is currently mapped.
133 GL_INVALID_OPERATION is generated if a non-zero buffer object name is
135 bound to the GL_PIXEL_UNPACK_BUFFER target and the data would be
136 unpacked from the buffer object such that the memory reads required
137 would exceed the data store size.
138 GL_INVALID_OPERATION is generated if a non-zero buffer object name is
140 bound to the GL_PIXEL_UNPACK_BUFFER target and pixels is not evenly
141 divisible into the number of bytes needed to store in memory a datum
142 indicated by type.
143
145 glGetTexImage()
146 glGet() with argument GL_PIXEL_UNPACK_BUFFER_BINDING
148
150 ┌────────────────────┬───────────────────────────────────────────────────────────────────────┐
151 │ │ OpenGL Version │
152 ├────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
153 │Function │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
154 │/ │ │ │ │ │ │ │ │ │ │ │ │ │
155 │Feature │ │ │ │ │ │ │ │ │ │ │ │ │
156 │Name │ │ │ │ │ │ │ │ │ │ │ │ │
157 ├────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
158 │glTexSubImage1D │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │
159 ├────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
160 │glTextureSubImage1D │ - │ - │ - │ - │ - │ - │ - │ - │ - │ - │ - │ ✔ │
161 └────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘
162
164 glActiveTexture(), glCopyTexImage1D(), glCopyTexImage2D(),
165 glCopyTexSubImage1D(), glCopyTexSubImage2D(), glCopyTexSubImage3D(),
166 glPixelStore(), glTexImage1D(), glTexImage2D(), glTexImage3D(),
167 glTexParameter(), glTexSubImage2D(), glTexSubImage3D()
168
170 Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2014
171 Khronos Group. This document is licensed under the SGI Free Software B
172 License. For details, see http://oss.sgi.com/projects/FreeB/.
173
175 Copyright © 1991-2006 Silicon Graphics, Inc.
176 Copyright © 2010-2014 Khronos Group
177[FIXME: source] 07/13/2018 GLTEXSUBIMAGE1D(3G)