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Diffstat (limited to 'glx/singlesize.c')
| -rw-r--r-- | glx/singlesize.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/glx/singlesize.c b/glx/singlesize.c new file mode 100644 index 0000000..6149b61 --- /dev/null +++ b/glx/singlesize.c @@ -0,0 +1,193 @@ +/* + * 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. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <GL/gl.h> +#include "glxserver.h" +#include "singlesize.h" +#include "indirect_size_get.h" +#include "glapitable.h" +#include "glapi.h" +#include "glthread.h" +#include "dispatch.h" + +/* +** These routines compute the size of variable-size returned parameters. +** Unlike the similar routines that do the same thing for variable-size +** incoming parameters, the samplegl library itself doesn't use these routines. +** Hence, they are located here, in the GLX extension library. +*/ + +GLint __glReadPixels_size(GLenum format, GLenum type, GLint w, GLint h) +{ + return __glXImageSize( format, type, 0, w, h, 1, 0, 0, 0, 0, 4 ); +} + +GLint __glGetMap_size(GLenum target, GLenum query) +{ + GLint k, order=0, majorMinor[2]; + + /* + ** Assume target and query are both valid. + */ + switch (target) { + case GL_MAP1_COLOR_4: + case GL_MAP1_NORMAL: + case GL_MAP1_INDEX: + case GL_MAP1_TEXTURE_COORD_1: + case GL_MAP1_TEXTURE_COORD_2: + case GL_MAP1_TEXTURE_COORD_3: + case GL_MAP1_TEXTURE_COORD_4: + case GL_MAP1_VERTEX_3: + case GL_MAP1_VERTEX_4: + switch (query) { + case GL_COEFF: + k = __glMap1d_size(target); + CALL_GetMapiv( GET_DISPATCH(), (target, GL_ORDER, &order) ); + /* + ** The query above might fail, but then order will be zero anyway. + */ + return order * k; + case GL_DOMAIN: + return 2; + case GL_ORDER: + return 1; + } + break; + case GL_MAP2_COLOR_4: + case GL_MAP2_NORMAL: + case GL_MAP2_INDEX: + case GL_MAP2_TEXTURE_COORD_1: + case GL_MAP2_TEXTURE_COORD_2: + case GL_MAP2_TEXTURE_COORD_3: + case GL_MAP2_TEXTURE_COORD_4: + case GL_MAP2_VERTEX_3: + case GL_MAP2_VERTEX_4: + switch (query) { + case GL_COEFF: + k = __glMap2d_size(target); + majorMinor[0] = majorMinor[1] = 0; + CALL_GetMapiv( GET_DISPATCH(), (target, GL_ORDER, majorMinor) ); + /* + ** The query above might fail, but then majorMinor will be zeroes + */ + return majorMinor[0] * majorMinor[1] * k; + case GL_DOMAIN: + return 4; + case GL_ORDER: + return 2; + } + break; + } + return -1; +} + +GLint __glGetMapdv_size(GLenum target, GLenum query) +{ + return __glGetMap_size(target, query); +} + +GLint __glGetMapfv_size(GLenum target, GLenum query) +{ + return __glGetMap_size(target, query); +} + +GLint __glGetMapiv_size(GLenum target, GLenum query) +{ + return __glGetMap_size(target, query); +} + +GLint __glGetPixelMap_size(GLenum map) +{ + GLint size; + GLenum query; + + switch (map) { + case GL_PIXEL_MAP_I_TO_I: + query = GL_PIXEL_MAP_I_TO_I_SIZE; + break; + case GL_PIXEL_MAP_S_TO_S: + query = GL_PIXEL_MAP_S_TO_S_SIZE; + break; + case GL_PIXEL_MAP_I_TO_R: + query = GL_PIXEL_MAP_I_TO_R_SIZE; + break; + case GL_PIXEL_MAP_I_TO_G: + query = GL_PIXEL_MAP_I_TO_G_SIZE; + break; + case GL_PIXEL_MAP_I_TO_B: + query = GL_PIXEL_MAP_I_TO_B_SIZE; + break; + case GL_PIXEL_MAP_I_TO_A: + query = GL_PIXEL_MAP_I_TO_A_SIZE; + break; + case GL_PIXEL_MAP_R_TO_R: + query = GL_PIXEL_MAP_R_TO_R_SIZE; + break; + case GL_PIXEL_MAP_G_TO_G: + query = GL_PIXEL_MAP_G_TO_G_SIZE; + break; + case GL_PIXEL_MAP_B_TO_B: + query = GL_PIXEL_MAP_B_TO_B_SIZE; + break; + case GL_PIXEL_MAP_A_TO_A: + query = GL_PIXEL_MAP_A_TO_A_SIZE; + break; + default: + return -1; + } + CALL_GetIntegerv( GET_DISPATCH(), (query, &size) ); + return size; +} + +GLint __glGetPixelMapfv_size(GLenum map) +{ + return __glGetPixelMap_size(map); +} + +GLint __glGetPixelMapuiv_size(GLenum map) +{ + return __glGetPixelMap_size(map); +} + +GLint __glGetPixelMapusv_size(GLenum map) +{ + return __glGetPixelMap_size(map); +} + +GLint __glGetTexImage_size(GLenum target, GLint level, GLenum format, + GLenum type, GLint width, GLint height, GLint depth) +{ + return __glXImageSize( format, type, target, width, height, depth, + 0, 0, 0, 0, 4 ); +} |