-/* $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 <GL/gl.h>
-#include "size.h"
+#include "indirect_size.h"
+#include "glxclient.h"
/*
** 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)
+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;
- if (width < 0 || height < 0 || depth < 0) {
- 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;
+ }
+
+ /*
** 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;
- }
- return bytes_per_row * height * depth * components;
+ 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;
}
projects / mesa.git / blobdiff