X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fglx%2Fx11%2Fcompsize.c;h=eca572feb3c7d8b6000b29e19205c29695953552;hb=2dd0c16f2118a39484615b80ca33620d3276523f;hp=b8c162e8acf0eed8adc0709b1e42118ec770a25e;hpb=e3358dea660f5dec53a8be9e38d725f4fd829e14;p=mesa.git diff --git a/src/glx/x11/compsize.c b/src/glx/x11/compsize.c index b8c162e8acf..eca572feb3c 100644 --- a/src/glx/x11/compsize.c +++ b/src/glx/x11/compsize.c @@ -1,38 +1,32 @@ -/* $XFree86: xc/lib/GL/glx/compsize.c,v 1.6 2004/01/28 18:11:38 alanh Exp $ */ /* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -*/ + * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) + * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice including the dates of first publication and + * either this permission notice or a reference to + * http://oss.sgi.com/projects/FreeB/ + * shall be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS 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 + * SILICON GRAPHICS, INC. 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 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of Silicon Graphics, Inc. + * shall not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization from + * Silicon Graphics, Inc. + */ #include #include "indirect_size.h" @@ -41,151 +35,156 @@ /* ** Return the number of elements per group of a specified format */ -GLint __glElementsPerGroup(GLenum format, GLenum type) +GLint +__glElementsPerGroup(GLenum format, GLenum type) { - /* + /* ** To make row length computation valid for image extraction, ** packed pixel types assume elements per group equals one. */ - switch(type) { - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_SHORT_8_8_APPLE: - case GL_UNSIGNED_SHORT_8_8_REV_APPLE: - case GL_UNSIGNED_SHORT_15_1_MESA: - case GL_UNSIGNED_SHORT_1_15_REV_MESA: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - case GL_UNSIGNED_INT_24_8_NV: - case GL_UNSIGNED_INT_24_8_MESA: - case GL_UNSIGNED_INT_8_24_REV_MESA: + switch (type) { + case GL_UNSIGNED_BYTE_3_3_2: + case GL_UNSIGNED_BYTE_2_3_3_REV: + case GL_UNSIGNED_SHORT_5_6_5: + case GL_UNSIGNED_SHORT_5_6_5_REV: + case GL_UNSIGNED_SHORT_4_4_4_4: + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + case GL_UNSIGNED_SHORT_5_5_5_1: + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + case GL_UNSIGNED_SHORT_8_8_APPLE: + case GL_UNSIGNED_SHORT_8_8_REV_APPLE: + case GL_UNSIGNED_SHORT_15_1_MESA: + case GL_UNSIGNED_SHORT_1_15_REV_MESA: + case GL_UNSIGNED_INT_8_8_8_8: + case GL_UNSIGNED_INT_8_8_8_8_REV: + case GL_UNSIGNED_INT_10_10_10_2: + case GL_UNSIGNED_INT_2_10_10_10_REV: + case GL_UNSIGNED_INT_24_8_NV: + case GL_UNSIGNED_INT_24_8_MESA: + case GL_UNSIGNED_INT_8_24_REV_MESA: return 1; - default: + default: break; - } + } - switch(format) { - case GL_RGB: - case GL_BGR: - return 3; - case GL_422_EXT: - case GL_422_REV_EXT: - case GL_422_AVERAGE_EXT: - case GL_422_REV_AVERAGE_EXT: - case GL_YCBCR_422_APPLE: - case GL_LUMINANCE_ALPHA: - return 2; - case GL_RGBA: - case GL_BGRA: - case GL_ABGR_EXT: - return 4; - case GL_COLOR_INDEX: - case GL_STENCIL_INDEX: - case GL_DEPTH_COMPONENT: - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: - case GL_LUMINANCE: - case GL_INTENSITY: - return 1; - default: - return 0; - } + switch (format) { + case GL_RGB: + case GL_BGR: + return 3; + case GL_422_EXT: + case GL_422_REV_EXT: + case GL_422_AVERAGE_EXT: + case GL_422_REV_AVERAGE_EXT: + case GL_YCBCR_422_APPLE: + case GL_LUMINANCE_ALPHA: + return 2; + case GL_RGBA: + case GL_BGRA: + case GL_ABGR_EXT: + return 4; + case GL_COLOR_INDEX: + case GL_STENCIL_INDEX: + case GL_DEPTH_COMPONENT: + case GL_RED: + case GL_GREEN: + case GL_BLUE: + case GL_ALPHA: + case GL_LUMINANCE: + case GL_INTENSITY: + return 1; + default: + return 0; + } } /* ** Return the number of bytes per element, based on the element type (other ** than GL_BITMAP). */ -GLint __glBytesPerElement(GLenum type) +GLint +__glBytesPerElement(GLenum type) { - switch(type) { - case GL_UNSIGNED_SHORT: - case GL_SHORT: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_SHORT_8_8_APPLE: - case GL_UNSIGNED_SHORT_8_8_REV_APPLE: - case GL_UNSIGNED_SHORT_15_1_MESA: - case GL_UNSIGNED_SHORT_1_15_REV_MESA: - return 2; - case GL_UNSIGNED_BYTE: - case GL_BYTE: - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - return 1; - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - case GL_UNSIGNED_INT_24_8_NV: - case GL_UNSIGNED_INT_24_8_MESA: - case GL_UNSIGNED_INT_8_24_REV_MESA: - return 4; - default: - return 0; - } + switch (type) { + case GL_UNSIGNED_SHORT: + case GL_SHORT: + case GL_UNSIGNED_SHORT_5_6_5: + case GL_UNSIGNED_SHORT_5_6_5_REV: + case GL_UNSIGNED_SHORT_4_4_4_4: + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + case GL_UNSIGNED_SHORT_5_5_5_1: + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + case GL_UNSIGNED_SHORT_8_8_APPLE: + case GL_UNSIGNED_SHORT_8_8_REV_APPLE: + case GL_UNSIGNED_SHORT_15_1_MESA: + case GL_UNSIGNED_SHORT_1_15_REV_MESA: + return 2; + case GL_UNSIGNED_BYTE: + case GL_BYTE: + case GL_UNSIGNED_BYTE_3_3_2: + case GL_UNSIGNED_BYTE_2_3_3_REV: + return 1; + case GL_INT: + case GL_UNSIGNED_INT: + case GL_FLOAT: + case GL_UNSIGNED_INT_8_8_8_8: + case GL_UNSIGNED_INT_8_8_8_8_REV: + case GL_UNSIGNED_INT_10_10_10_2: + case GL_UNSIGNED_INT_2_10_10_10_REV: + case GL_UNSIGNED_INT_24_8_NV: + case GL_UNSIGNED_INT_24_8_MESA: + case GL_UNSIGNED_INT_8_24_REV_MESA: + return 4; + default: + return 0; + } } /* ** Compute memory required for internal packed array of data of given type ** and format. */ -GLint __glImageSize(GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLenum type, GLenum target) +GLint +__glImageSize(GLsizei width, GLsizei height, GLsizei depth, + GLenum format, GLenum type, GLenum target) { - int bytes_per_row; - int components; + int bytes_per_row; + int components; - switch( target ) { - case GL_PROXY_TEXTURE_1D: - case GL_PROXY_TEXTURE_2D: - case GL_PROXY_TEXTURE_3D: - case GL_PROXY_TEXTURE_4D_SGIS: - case GL_PROXY_TEXTURE_CUBE_MAP: - case GL_PROXY_TEXTURE_RECTANGLE_ARB: - case GL_PROXY_HISTOGRAM: - case GL_PROXY_COLOR_TABLE: - case GL_PROXY_TEXTURE_COLOR_TABLE_SGI: - case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE: - case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE: - case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP: - return 0; - } + switch (target) { + case GL_PROXY_TEXTURE_1D: + case GL_PROXY_TEXTURE_2D: + case GL_PROXY_TEXTURE_3D: + case GL_PROXY_TEXTURE_4D_SGIS: + case GL_PROXY_TEXTURE_CUBE_MAP: + case GL_PROXY_TEXTURE_RECTANGLE_ARB: + case GL_PROXY_HISTOGRAM: + case GL_PROXY_COLOR_TABLE: + case GL_PROXY_TEXTURE_COLOR_TABLE_SGI: + case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE: + case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE: + case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP: + return 0; + } - if (width < 0 || height < 0 || depth < 0) { - return 0; - } + if (width < 0 || height < 0 || depth < 0) { + return 0; + } - /* + /* ** Zero is returned if either format or type are invalid. */ - components = __glElementsPerGroup(format,type); - if (type == GL_BITMAP) { - if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) { - bytes_per_row = (width + 7) >> 3; - } else { - return 0; - } - } else { - bytes_per_row = __glBytesPerElement(type) * width; - } + components = __glElementsPerGroup(format, type); + if (type == GL_BITMAP) { + if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) { + bytes_per_row = (width + 7) >> 3; + } + else { + return 0; + } + } + else { + bytes_per_row = __glBytesPerElement(type) * width; + } - return bytes_per_row * height * depth * components; + return bytes_per_row * height * depth * components; }