2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice including the dates of first publication and
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14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included in all copies or substantial portions of the Software.
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,
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22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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28 * Silicon Graphics, Inc.
31 #include "glxclient.h"
34 #if !defined(__GNUC__)
35 # define __builtin_expect(x, y) x
39 * Send glPixelStore command to the server
41 * \param gc Current GLX context
42 * \param sop Either \c X_GLsop_PixelStoref or \c X_GLsop_PixelStorei
43 * \param pname Selector of which pixel parameter is to be set.
44 * \param param Value that \c pname is set to.
46 * \sa __indirect_glPixelStorei, __indirect_glPixelStoref
49 send_PixelStore(struct glx_context * gc, unsigned sop, GLenum pname,
52 Display *const dpy = gc->currentDpy;
53 const GLuint cmdlen = 8;
54 if (__builtin_expect(dpy != NULL, 1)) {
55 GLubyte const *pc = __glXSetupSingleRequest(gc, sop, cmdlen);
56 (void) memcpy((void *) (pc + 0), (void *) (&pname), 4);
57 (void) memcpy((void *) (pc + 4), param, 4);
65 ** Specify parameters that control the storage format of pixel arrays.
68 __indirect_glPixelStoref(GLenum pname, GLfloat param)
70 struct glx_context *gc = __glXGetCurrentContext();
71 __GLXattribute *state = gc->client_state_private;
72 Display *dpy = gc->currentDpy;
79 case GL_PACK_ROW_LENGTH:
80 a = (GLuint) (param + 0.5);
81 if (((GLint) a) < 0) {
82 __glXSetError(gc, GL_INVALID_VALUE);
85 state->storePack.rowLength = a;
87 case GL_PACK_IMAGE_HEIGHT:
88 a = (GLuint) (param + 0.5);
89 if (((GLint) a) < 0) {
90 __glXSetError(gc, GL_INVALID_VALUE);
93 state->storePack.imageHeight = a;
95 case GL_PACK_SKIP_ROWS:
96 a = (GLuint) (param + 0.5);
97 if (((GLint) a) < 0) {
98 __glXSetError(gc, GL_INVALID_VALUE);
101 state->storePack.skipRows = a;
103 case GL_PACK_SKIP_PIXELS:
104 a = (GLuint) (param + 0.5);
105 if (((GLint) a) < 0) {
106 __glXSetError(gc, GL_INVALID_VALUE);
109 state->storePack.skipPixels = a;
111 case GL_PACK_SKIP_IMAGES:
112 a = (GLuint) (param + 0.5);
113 if (((GLint) a) < 0) {
114 __glXSetError(gc, GL_INVALID_VALUE);
117 state->storePack.skipImages = a;
119 case GL_PACK_ALIGNMENT:
120 a = (GLint) (param + 0.5);
126 state->storePack.alignment = a;
129 __glXSetError(gc, GL_INVALID_VALUE);
133 case GL_PACK_SWAP_BYTES:
134 state->storePack.swapEndian = (param != 0);
136 case GL_PACK_LSB_FIRST:
137 state->storePack.lsbFirst = (param != 0);
140 case GL_UNPACK_ROW_LENGTH:
141 a = (GLuint) (param + 0.5);
142 if (((GLint) a) < 0) {
143 __glXSetError(gc, GL_INVALID_VALUE);
146 state->storeUnpack.rowLength = a;
148 case GL_UNPACK_IMAGE_HEIGHT:
149 a = (GLuint) (param + 0.5);
150 if (((GLint) a) < 0) {
151 __glXSetError(gc, GL_INVALID_VALUE);
154 state->storeUnpack.imageHeight = a;
156 case GL_UNPACK_SKIP_ROWS:
157 a = (GLuint) (param + 0.5);
158 if (((GLint) a) < 0) {
159 __glXSetError(gc, GL_INVALID_VALUE);
162 state->storeUnpack.skipRows = a;
164 case GL_UNPACK_SKIP_PIXELS:
165 a = (GLuint) (param + 0.5);
166 if (((GLint) a) < 0) {
167 __glXSetError(gc, GL_INVALID_VALUE);
170 state->storeUnpack.skipPixels = a;
172 case GL_UNPACK_SKIP_IMAGES:
173 a = (GLuint) (param + 0.5);
174 if (((GLint) a) < 0) {
175 __glXSetError(gc, GL_INVALID_VALUE);
178 state->storeUnpack.skipImages = a;
180 case GL_UNPACK_ALIGNMENT:
181 a = (GLint) (param + 0.5);
187 state->storeUnpack.alignment = a;
190 __glXSetError(gc, GL_INVALID_VALUE);
194 case GL_UNPACK_SWAP_BYTES:
195 state->storeUnpack.swapEndian = (param != 0);
197 case GL_UNPACK_LSB_FIRST:
198 state->storeUnpack.lsbFirst = (param != 0);
201 /* Group all of the pixel store modes that need to be sent to the
202 * server here. Care must be used to only send modes to the server that
203 * won't affect the size of the data sent to or received from the
204 * server. GL_PACK_INVERT_MESA is safe in this respect, but other,
205 * future modes may not be.
207 case GL_PACK_INVERT_MESA:
208 send_PixelStore(gc, X_GLsop_PixelStoref, pname, ¶m);
212 __glXSetError(gc, GL_INVALID_ENUM);
218 __indirect_glPixelStorei(GLenum pname, GLint param)
220 struct glx_context *gc = __glXGetCurrentContext();
221 __GLXattribute *state = gc->client_state_private;
222 Display *dpy = gc->currentDpy;
228 case GL_PACK_ROW_LENGTH:
230 __glXSetError(gc, GL_INVALID_VALUE);
233 state->storePack.rowLength = param;
235 case GL_PACK_IMAGE_HEIGHT:
237 __glXSetError(gc, GL_INVALID_VALUE);
240 state->storePack.imageHeight = param;
242 case GL_PACK_SKIP_ROWS:
244 __glXSetError(gc, GL_INVALID_VALUE);
247 state->storePack.skipRows = param;
249 case GL_PACK_SKIP_PIXELS:
251 __glXSetError(gc, GL_INVALID_VALUE);
254 state->storePack.skipPixels = param;
256 case GL_PACK_SKIP_IMAGES:
258 __glXSetError(gc, GL_INVALID_VALUE);
261 state->storePack.skipImages = param;
263 case GL_PACK_ALIGNMENT:
269 state->storePack.alignment = param;
272 __glXSetError(gc, GL_INVALID_VALUE);
276 case GL_PACK_SWAP_BYTES:
277 state->storePack.swapEndian = (param != 0);
279 case GL_PACK_LSB_FIRST:
280 state->storePack.lsbFirst = (param != 0);
283 case GL_UNPACK_ROW_LENGTH:
285 __glXSetError(gc, GL_INVALID_VALUE);
288 state->storeUnpack.rowLength = param;
290 case GL_UNPACK_IMAGE_HEIGHT:
292 __glXSetError(gc, GL_INVALID_VALUE);
295 state->storeUnpack.imageHeight = param;
297 case GL_UNPACK_SKIP_ROWS:
299 __glXSetError(gc, GL_INVALID_VALUE);
302 state->storeUnpack.skipRows = param;
304 case GL_UNPACK_SKIP_PIXELS:
306 __glXSetError(gc, GL_INVALID_VALUE);
309 state->storeUnpack.skipPixels = param;
311 case GL_UNPACK_SKIP_IMAGES:
313 __glXSetError(gc, GL_INVALID_VALUE);
316 state->storeUnpack.skipImages = param;
318 case GL_UNPACK_ALIGNMENT:
324 state->storeUnpack.alignment = param;
327 __glXSetError(gc, GL_INVALID_VALUE);
331 case GL_UNPACK_SWAP_BYTES:
332 state->storeUnpack.swapEndian = (param != 0);
334 case GL_UNPACK_LSB_FIRST:
335 state->storeUnpack.lsbFirst = (param != 0);
338 /* Group all of the pixel store modes that need to be sent to the
339 * server here. Care must be used to only send modes to the server that
340 * won't affect the size of the data sent to or received from the
341 * server. GL_PACK_INVERT_MESA is safe in this respect, but other,
342 * future modes may not be.
344 case GL_PACK_INVERT_MESA:
345 send_PixelStore(gc, X_GLsop_PixelStorei, pname, ¶m);
349 __glXSetError(gc, GL_INVALID_ENUM);