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Diffstat (limited to 'src/glx/singlepix.c')
| -rw-r--r-- | src/glx/singlepix.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/glx/singlepix.c b/src/glx/singlepix.c new file mode 100644 index 0000000000..f5ebf4dfdb --- /dev/null +++ b/src/glx/singlepix.c @@ -0,0 +1,196 @@ +/* + * 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 "packsingle.h" +#include "indirect.h" +#include "glapitable.h" +#include "glapidispatch.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(); + +#ifdef GLX_DIRECT_RENDERING + if (gc->driContext) { + CALL_GetSeparableFilter(GET_DISPATCH(), + (target, format, type, row, column, span)); + return; + } + else +#endif + { + 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); + } + } + } + } +} |