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1 /*
2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice including the dates of first publication and
13  * either this permission notice or a reference to
14  * http://oss.sgi.com/projects/FreeB/
15  * shall be included in all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23  * SOFTWARE.
24  *
25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
26  * shall not be used in advertising or otherwise to promote the sale, use or
27  * other dealings in this Software without prior written authorization from
28  * Silicon Graphics, Inc.
29  */
30 
31 /*
32  * (C) Copyright IBM Corporation 2005
33  * All Rights Reserved.
34  *
35  * Permission is hereby granted, free of charge, to any person obtaining a
36  * copy of this software and associated documentation files (the "Software"),
37  * to deal in the Software without restriction, including without limitation
38  * the rights to use, copy, modify, merge, publish, distribute, sub license,
39  * and/or sell copies of the Software, and to permit persons to whom the
40  * Software is furnished to do so, subject to the following conditions:
41  *
42  * The above copyright notice and this permission notice (including the next
43  * paragraph) shall be included in all copies or substantial portions of the
44  * Software.
45  *
46  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
47  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
48  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
49  * IBM,
50  * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
51  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
52  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
53  * SOFTWARE.
54  */
55 
56 #include "packrender.h"
57 #include "indirect.h"
58 
59 /**
60  * Send a large image to the server.  If necessary, a buffer is allocated
61  * to hold the unpacked data that is copied from the clients memory.
62  *
63  * \param gc        Current GLX context
64  * \param compsize  Size, in bytes, of the image portion
65  * \param dim       Number of dimensions of the image
66  * \param width     Width of the image
67  * \param height    Height of the image, must be 1 for 1D images
68  * \param depth     Depth of the image, must be 1 for 1D or 2D images
69  * \param format    Format of the image
70  * \param type      Data type of the image
71  * \param src       Pointer to the image data
72  * \param pc        Pointer to end of the command header
73  * \param modes     Pointer to the pixel unpack data
74  *
75  * \todo
76  * Modify this function so that \c NULL images are sent using
77  * \c __glXSendLargeChunk instead of __glXSendLargeCommand.  Doing this
78  * will eliminate the need to allocate a buffer for that case.
79  */
80 void
__glXSendLargeImage(struct glx_context * gc,GLint compsize,GLint dim,GLint width,GLint height,GLint depth,GLenum format,GLenum type,const GLvoid * src,GLubyte * pc,GLubyte * modes)81 __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
82                     GLint width, GLint height, GLint depth,
83                     GLenum format, GLenum type, const GLvoid * src,
84                     GLubyte * pc, GLubyte * modes)
85 {
86     /* Allocate a temporary holding buffer */
87     GLubyte *buf = malloc(compsize);
88     if (!buf) {
89 	__glXSetError(gc, GL_OUT_OF_MEMORY);
90 	return;
91     }
92 
93     /* Apply pixel store unpack modes to copy data into buf */
94     if (src != NULL) {
95 	(*gc->fillImage) (gc, dim, width, height, depth, format, type,
96 			  src, buf, modes);
97     }
98     else {
99 	if (dim < 3) {
100 	    (void) memcpy(modes, __glXDefaultPixelStore + 4, 20);
101 	}
102 	else {
103 	    (void) memcpy(modes, __glXDefaultPixelStore + 0, 36);
104 	}
105     }
106 
107     /* Send large command */
108     __glXSendLargeCommand(gc, gc->pc, pc - gc->pc, buf, compsize);
109 
110     /* Free buffer */
111     free((char *) buf);
112 }
113 
114 /************************************************************************/
115 
116 /**
117  * Implement GLX protocol for \c glSeparableFilter2D.
118  */
119 void
__indirect_glSeparableFilter2D(GLenum target,GLenum internalformat,GLsizei width,GLsizei height,GLenum format,GLenum type,const GLvoid * row,const GLvoid * column)120 __indirect_glSeparableFilter2D(GLenum target, GLenum internalformat,
121                                GLsizei width, GLsizei height, GLenum format,
122                                GLenum type, const GLvoid * row,
123                                const GLvoid * column)
124 {
125    __GLX_DECLARE_VARIABLES();
126    GLuint compsize2, hdrlen, totalhdrlen, image1len, image2len;
127 
128    __GLX_LOAD_VARIABLES();
129    compsize = __glImageSize(width, 1, 1, format, type, 0);
130    compsize2 = __glImageSize(height, 1, 1, format, type, 0);
131    totalhdrlen = __GLX_PAD(__GLX_CONV_FILT_CMD_HDR_SIZE);
132    hdrlen = __GLX_PAD(__GLX_CONV_FILT_HDR_SIZE);
133    image1len = __GLX_PAD(compsize);
134    image2len = __GLX_PAD(compsize2);
135    cmdlen = totalhdrlen + image1len + image2len;
136    if (!gc->currentDpy)
137       return;
138 
139    if (cmdlen <= gc->maxSmallRenderCommandSize) {
140       /* Use GLXRender protocol to send small command */
141       __GLX_BEGIN_VARIABLE_WITH_PIXEL(X_GLrop_SeparableFilter2D, cmdlen);
142       __GLX_PUT_LONG(0, target);
143       __GLX_PUT_LONG(4, internalformat);
144       __GLX_PUT_LONG(8, width);
145       __GLX_PUT_LONG(12, height);
146       __GLX_PUT_LONG(16, format);
147       __GLX_PUT_LONG(20, type);
148       pc += hdrlen;
149       if (compsize > 0) {
150          (*gc->fillImage) (gc, 1, width, 1, 1, format, type,
151                            row, pc, pixelHeaderPC);
152          pc += image1len;
153       }
154       if (compsize2 > 0) {
155          (*gc->fillImage) (gc, 1, height, 1, 1, format, type,
156                            column, pc, NULL);
157          pc += image2len;
158       }
159       if ((compsize == 0) && (compsize2 == 0)) {
160          /* Setup default store modes */
161          (void) memcpy(pixelHeaderPC, __glXDefaultPixelStore + 4, 20);
162       }
163       __GLX_END(0);
164    }
165    else {
166       GLubyte *buf;
167       const GLint bufsize = image1len + image2len;
168 
169       /* Use GLXRenderLarge protocol to send command */
170       __GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL(X_GLrop_SeparableFilter2D,
171                                             cmdlen + 4);
172       __GLX_PUT_LONG(0, target);
173       __GLX_PUT_LONG(4, internalformat);
174       __GLX_PUT_LONG(8, width);
175       __GLX_PUT_LONG(12, height);
176       __GLX_PUT_LONG(16, format);
177       __GLX_PUT_LONG(20, type);
178       pc += hdrlen;
179 
180       /* Allocate a temporary holding buffer */
181       buf = malloc(bufsize);
182       if (!buf) {
183          __glXSetError(gc, GL_OUT_OF_MEMORY);
184          return;
185       }
186       (*gc->fillImage) (gc, 1, width, 1, 1, format, type, row, buf,
187                         pixelHeaderPC);
188 
189       (*gc->fillImage) (gc, 1, height, 1, 1, format, type, column,
190                         buf + image1len, pixelHeaderPC);
191 
192       /* Send large command */
193       __glXSendLargeCommand(gc, gc->pc, (GLint) (pc - gc->pc), buf,
194                             bufsize);
195       /* Free buffer */
196       free((char *) buf);
197    }
198 }
199