mirror of https://gitlab.freedesktop.org/mesa/mesa
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* SPDX-License-Identifier: SGI-B-2.0
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*/
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#include "packsingle.h"
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#include "indirect.h"
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#include "glapi.h"
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#include <GL/glxproto.h>
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void
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__indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type,
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GLvoid * row, GLvoid * column, GLvoid * span)
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{
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__GLX_SINGLE_DECLARE_VARIABLES();
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const __GLXattribute *state;
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xGLXGetSeparableFilterReply reply;
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GLubyte *rowBuf, *colBuf;
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if (!dpy)
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return;
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__GLX_SINGLE_LOAD_VARIABLES();
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state = gc->client_state_private;
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/* Send request */
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__GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13));
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__GLX_SINGLE_PUT_LONG(0, target);
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__GLX_SINGLE_PUT_LONG(4, format);
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__GLX_SINGLE_PUT_LONG(8, type);
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__GLX_SINGLE_PUT_CHAR(12, state->storePack.swapEndian);
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__GLX_SINGLE_READ_XREPLY();
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compsize = reply.length << 2;
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if (compsize != 0) {
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GLint width, height;
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GLint widthsize, heightsize;
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width = reply.width;
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height = reply.height;
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widthsize = __glImageSize(width, 1, 1, format, type, 0);
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heightsize = __glImageSize(height, 1, 1, format, type, 0);
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/* Allocate a holding buffer to transform the data from */
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rowBuf = malloc(widthsize);
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if (!rowBuf) {
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/* Throw data away */
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_XEatData(dpy, compsize);
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__glXSetError(gc, GL_OUT_OF_MEMORY);
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UnlockDisplay(dpy);
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SyncHandle();
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return;
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}
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else {
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__GLX_SINGLE_GET_CHAR_ARRAY(((char *) rowBuf), widthsize);
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__glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row);
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free((char *) rowBuf);
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}
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colBuf = malloc(heightsize);
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if (!colBuf) {
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/* Throw data away */
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_XEatData(dpy, compsize - __GLX_PAD(widthsize));
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__glXSetError(gc, GL_OUT_OF_MEMORY);
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UnlockDisplay(dpy);
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SyncHandle();
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return;
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}
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else {
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__GLX_SINGLE_GET_CHAR_ARRAY(((char *) colBuf), heightsize);
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__glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column);
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free((char *) colBuf);
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}
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}
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else {
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/*
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** don't modify user's buffer.
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*/
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}
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__GLX_SINGLE_END();
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}
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