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Diffstat (limited to 'src/glx/x11/singlepix.c')
| -rw-r--r-- | src/glx/x11/singlepix.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/glx/x11/singlepix.c b/src/glx/x11/singlepix.c new file mode 100644 index 0000000000..a7b5b79870 --- /dev/null +++ b/src/glx/x11/singlepix.c @@ -0,0 +1,192 @@ +/* $XFree86: xc/lib/GL/glx/singlepix.c,v 1.3 2001/03/21 16:04:39 dawes 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. +** +*/ + +#include "packsingle.h" +#include "indirect.h" +#include "dispatch.h" +#include "glapi.h" +#include "glthread.h" +#include "glapioffsets.h" +#include <GL/glxproto.h> + +void __indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type, + GLvoid *row, GLvoid *column, GLvoid *span) +{ + __GLX_SINGLE_DECLARE_VARIABLES(); + const __GLXattribute * state; + xGLXGetSeparableFilterReply reply; + GLubyte *rowBuf, *colBuf; + + if (!dpy) return; + __GLX_SINGLE_LOAD_VARIABLES(); + state = gc->client_state_private; + + /* Send request */ + __GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13)); + __GLX_SINGLE_PUT_LONG(0,target); + __GLX_SINGLE_PUT_LONG(4,format); + __GLX_SINGLE_PUT_LONG(8,type); + __GLX_SINGLE_PUT_CHAR(12,state->storePack.swapEndian); + __GLX_SINGLE_READ_XREPLY(); + compsize = reply.length << 2; + + if (compsize != 0) { + GLint width, height; + GLint widthsize, heightsize; + + width = reply.width; + height = reply.height; + + widthsize = __glImageSize(width,1,1,format, type, 0); + heightsize = __glImageSize(height,1,1,format, type, 0); + + /* Allocate a holding buffer to transform the data from */ + rowBuf = (GLubyte*) Xmalloc(widthsize); + if (!rowBuf) { + /* Throw data away */ + _XEatData(dpy, compsize); + __glXSetError(gc, GL_OUT_OF_MEMORY); + UnlockDisplay(dpy); + SyncHandle(); + return; + } else { + __GLX_SINGLE_GET_CHAR_ARRAY(((char*)rowBuf),widthsize); + __glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row); + Xfree((char*) rowBuf); + } + colBuf = (GLubyte*) Xmalloc(heightsize); + if (!colBuf) { + /* Throw data away */ + _XEatData(dpy, compsize - __GLX_PAD(widthsize)); + __glXSetError(gc, GL_OUT_OF_MEMORY); + UnlockDisplay(dpy); + SyncHandle(); + return; + } else { + __GLX_SINGLE_GET_CHAR_ARRAY(((char*)colBuf),heightsize); + __glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column); + Xfree((char*) colBuf); + } + } else { + /* + ** don't modify user's buffer. + */ + } + __GLX_SINGLE_END(); + +} + + +#define CONCAT(a,b) a ## b +#define NAME(o) CONCAT(gl_dispatch_stub_, o) + +void NAME(_gloffset_GetSeparableFilter)(GLenum target, GLenum format, GLenum type, + GLvoid *row, GLvoid *column, GLvoid *span) +{ + __GLXcontext * const gc = __glXGetCurrentContext(); + + if (gc->isDirect) { + CALL_GetSeparableFilter(GET_DISPATCH(), + (target, format, type, row, column, span)); + return; + } + else { + Display *const dpy = gc->currentDpy; + const GLuint cmdlen = __GLX_PAD(13); + + if (dpy != NULL) { + const __GLXattribute * const state = gc->client_state_private; + xGLXGetSeparableFilterReply reply; + GLubyte const *pc = + __glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply, + X_GLvop_GetSeparableFilterEXT, cmdlen); + unsigned compsize; + + + (void) memcpy((void *) (pc + 0), (void *) (&target), 4); + (void) memcpy((void *) (pc + 4), (void *) (&format), 4); + (void) memcpy((void *) (pc + 8), (void *) (&type), 4); + *(int8_t *) (pc + 12) = state->storePack.swapEndian; + + (void) _XReply(dpy, (xReply *) & reply, 0, False); + + compsize = reply.length << 2; + + if (compsize != 0) { + const GLint width = reply.width; + const GLint height = reply.height; + const GLint widthsize = + __glImageSize(width, 1, 1, format, type, 0); + const GLint heightsize = + __glImageSize(height, 1, 1, format, type, 0); + GLubyte * const buf = + (GLubyte*) Xmalloc((widthsize > heightsize) ? widthsize : heightsize); + + if (buf == NULL) { + /* Throw data away */ + _XEatData(dpy, compsize); + __glXSetError(gc, GL_OUT_OF_MEMORY); + + UnlockDisplay(dpy); + SyncHandle(); + return; + } else { + int extra; + + extra = 4 - (widthsize & 3); + _XRead(dpy, (char *)buf, widthsize); + if (extra < 4) { + _XEatData(dpy, extra); + } + + __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, + row); + + extra = 4 - (heightsize & 3); + _XRead(dpy, (char *)buf, heightsize); + if (extra < 4) { + _XEatData(dpy, extra); + } + + __glEmptyImage(gc, 1, height, 1, 1, format, type, buf, + column); + + Xfree((char*) buf); + } + } + } + } +} |