[deb_xorg-server.git] / glx / unpack.h

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#ifndef __GLX_unpack_h__
#define __GLX_unpack_h__

/*
 * 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.
 */

#define __GLX_PAD(s) (((s)+3) & (GLuint)~3)

/*
** Fetch the context-id out of a SingleReq request pointed to by pc.
*/
#define __GLX_GET_SINGLE_CONTEXT_TAG(pc) (((xGLXSingleReq*)pc)->contextTag)
#define __GLX_GET_VENDPRIV_CONTEXT_TAG(pc) (((xGLXVendorPrivateReq*)pc)->contextTag)

/*
** Fetch a double from potentially unaligned memory.
*/
#ifdef __GLX_ALIGN64
#define __GLX_MEM_COPY(dst,src,n)	memmove(dst,src,n)
#define __GLX_GET_DOUBLE(dst,src)	__GLX_MEM_COPY(&dst,src,8)
#else
#define __GLX_GET_DOUBLE(dst,src)	(dst) = *((GLdouble*)(src))
#endif

extern void __glXMemInit(void);

extern xGLXSingleReply __glXReply;

#define __GLX_BEGIN_REPLY(size) \
  	__glXReply.length = __GLX_PAD(size) >> 2;	\
  	__glXReply.type = X_Reply; 			\
  	__glXReply.sequenceNumber = client->sequence;

#define __GLX_SEND_HEADER() \
	WriteToClient (client, sz_xGLXSingleReply, &__glXReply);

#define __GLX_PUT_RETVAL(a) \
  	__glXReply.retval = (a);

#define __GLX_PUT_SIZE(a) \
  	__glXReply.size = (a);

#define __GLX_PUT_RENDERMODE(m) \
        __glXReply.pad3 = (m)

/*
** Get a buffer to hold returned data, with the given alignment.  If we have
** to realloc, allocate size+align, in case the pointer has to be bumped for
** alignment.  The answerBuffer should already be aligned.
**
** NOTE: the cast (long)res below assumes a long is large enough to hold a
** pointer.
*/
#define __GLX_GET_ANSWER_BUFFER(res,cl,size,align)			 \
    if ((size) > sizeof(answerBuffer)) {				 \
	int bump;							 \
	if ((cl)->returnBufSize < (size)+(align)) {			 \
	    (cl)->returnBuf = (GLbyte*)realloc((cl)->returnBuf,	 	 \
						(size)+(align));         \
	    if (!(cl)->returnBuf) {					 \
		return BadAlloc;					 \
	    }								 \
	    (cl)->returnBufSize = (size)+(align);			 \
	}								 \
	res = (char*)cl->returnBuf;					 \
	bump = (long)(res) % (align);					 \
	if (bump) res += (align) - (bump);				 \
    } else {								 \
	res = (char *)answerBuffer;					 \
    }

#define __GLX_PUT_BYTE() \
  	*(GLbyte *)&__glXReply.pad3 = *(GLbyte *)answer

#define __GLX_PUT_SHORT() \
  	*(GLshort *)&__glXReply.pad3 = *(GLshort *)answer

#define __GLX_PUT_INT() \
  	*(GLint *)&__glXReply.pad3 = *(GLint *)answer

#define __GLX_PUT_FLOAT() \
  	*(GLfloat *)&__glXReply.pad3 = *(GLfloat *)answer

#define __GLX_PUT_DOUBLE() \
  	*(GLdouble *)&__glXReply.pad3 = *(GLdouble *)answer

#define __GLX_SEND_BYTE_ARRAY(len) \
	WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT8), answer)

#define __GLX_SEND_SHORT_ARRAY(len) \
	WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT16), answer)

#define __GLX_SEND_INT_ARRAY(len) \
	WriteToClient(client, (len)*__GLX_SIZE_INT32, answer)

#define __GLX_SEND_FLOAT_ARRAY(len) \
	WriteToClient(client, (len)*__GLX_SIZE_FLOAT32, answer)

#define __GLX_SEND_DOUBLE_ARRAY(len) \
	WriteToClient(client, (len)*__GLX_SIZE_FLOAT64, answer)

#define __GLX_SEND_VOID_ARRAY(len)  __GLX_SEND_BYTE_ARRAY(len)
#define __GLX_SEND_UBYTE_ARRAY(len)  __GLX_SEND_BYTE_ARRAY(len)
#define __GLX_SEND_USHORT_ARRAY(len) __GLX_SEND_SHORT_ARRAY(len)
#define __GLX_SEND_UINT_ARRAY(len)  __GLX_SEND_INT_ARRAY(len)

/*
** PERFORMANCE NOTE:
** Machine dependent optimizations abound here; these swapping macros can
** conceivably be replaced with routines that do the job faster.
*/
#define __GLX_DECLARE_SWAP_VARIABLES \
	GLbyte sw

#define __GLX_DECLARE_SWAP_ARRAY_VARIABLES \
  	GLbyte *swapPC;		\
  	GLbyte *swapEnd

#define __GLX_SWAP_INT(pc) 			\
  	sw = ((GLbyte *)(pc))[0]; 		\
  	((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[3]; 	\
  	((GLbyte *)(pc))[3] = sw; 		\
  	sw = ((GLbyte *)(pc))[1]; 		\
  	((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[2]; 	\
  	((GLbyte *)(pc))[2] = sw;

#define __GLX_SWAP_SHORT(pc) \
  	sw = ((GLbyte *)(pc))[0]; 		\
  	((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[1]; 	\
  	((GLbyte *)(pc))[1] = sw;

#define __GLX_SWAP_DOUBLE(pc) \
  	sw = ((GLbyte *)(pc))[0]; 		\
  	((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[7]; 	\
  	((GLbyte *)(pc))[7] = sw; 		\
  	sw = ((GLbyte *)(pc))[1]; 		\
  	((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[6]; 	\
  	((GLbyte *)(pc))[6] = sw;			\
  	sw = ((GLbyte *)(pc))[2]; 		\
  	((GLbyte *)(pc))[2] = ((GLbyte *)(pc))[5]; 	\
  	((GLbyte *)(pc))[5] = sw;			\
  	sw = ((GLbyte *)(pc))[3]; 		\
  	((GLbyte *)(pc))[3] = ((GLbyte *)(pc))[4]; 	\
  	((GLbyte *)(pc))[4] = sw;

#define __GLX_SWAP_FLOAT(pc) \
  	sw = ((GLbyte *)(pc))[0]; 		\
  	((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[3]; 	\
  	((GLbyte *)(pc))[3] = sw; 		\
  	sw = ((GLbyte *)(pc))[1]; 		\
  	((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[2]; 	\
  	((GLbyte *)(pc))[2] = sw;

#define __GLX_SWAP_INT_ARRAY(pc, count) \
  	swapPC = ((GLbyte *)(pc));		\
  	swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_INT32;\
  	while (swapPC < swapEnd) {		\
	    __GLX_SWAP_INT(swapPC);		\
	    swapPC += __GLX_SIZE_INT32;		\
	}

#define __GLX_SWAP_SHORT_ARRAY(pc, count) \
  	swapPC = ((GLbyte *)(pc));		\
  	swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_INT16;\
  	while (swapPC < swapEnd) {		\
	    __GLX_SWAP_SHORT(swapPC);		\
	    swapPC += __GLX_SIZE_INT16;		\
	}

#define __GLX_SWAP_DOUBLE_ARRAY(pc, count) \
  	swapPC = ((GLbyte *)(pc));		\
  	swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_FLOAT64;\
  	while (swapPC < swapEnd) {		\
	    __GLX_SWAP_DOUBLE(swapPC);		\
	    swapPC += __GLX_SIZE_FLOAT64;	\
	}

#define __GLX_SWAP_FLOAT_ARRAY(pc, count) \
  	swapPC = ((GLbyte *)(pc));		\
  	swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_FLOAT32;\
  	while (swapPC < swapEnd) {		\
	    __GLX_SWAP_FLOAT(swapPC);		\
	    swapPC += __GLX_SIZE_FLOAT32;	\
	}

#define __GLX_SWAP_REPLY_HEADER() \
  	__GLX_SWAP_SHORT(&__glXReply.sequenceNumber); \
  	__GLX_SWAP_INT(&__glXReply.length);

#define __GLX_SWAP_REPLY_RETVAL() \
  	__GLX_SWAP_INT(&__glXReply.retval)

#define __GLX_SWAP_REPLY_SIZE() \
  	__GLX_SWAP_INT(&__glXReply.size)

#endif                          /* !__GLX_unpack_h__ */
Commit	Line	Data
a09e091a JB	1	#ifdef HAVE_DIX_CONFIG_H
	2	#include <dix-config.h>
	3	#endif
	4
	5	#ifndef __GLX_unpack_h__
	6	#define __GLX_unpack_h__
	7
	8	/*
	9	* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
	10	* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
	11	*
	12	* Permission is hereby granted, free of charge, to any person obtaining a
	13	* copy of this software and associated documentation files (the "Software"),
	14	* to deal in the Software without restriction, including without limitation
	15	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	16	* and/or sell copies of the Software, and to permit persons to whom the
	17	* Software is furnished to do so, subject to the following conditions:
	18	*
	19	* The above copyright notice including the dates of first publication and
	20	* either this permission notice or a reference to
	21	* http://oss.sgi.com/projects/FreeB/
	22	* shall be included in all copies or substantial portions of the Software.
	23	*
	24	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	25	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	26	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	27	* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	28	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
	29	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*
	32	* Except as contained in this notice, the name of Silicon Graphics, Inc.
	33	* shall not be used in advertising or otherwise to promote the sale, use or
	34	* other dealings in this Software without prior written authorization from
	35	* Silicon Graphics, Inc.
	36	*/
	37
	38	#define __GLX_PAD(s) (((s)+3) & (GLuint)~3)
	39
	40	/*
	41	** Fetch the context-id out of a SingleReq request pointed to by pc.
	42	*/
	43	#define __GLX_GET_SINGLE_CONTEXT_TAG(pc) (((xGLXSingleReq*)pc)->contextTag)
	44	#define __GLX_GET_VENDPRIV_CONTEXT_TAG(pc) (((xGLXVendorPrivateReq*)pc)->contextTag)
	45
	46	/*
	47	** Fetch a double from potentially unaligned memory.
	48	*/
	49	#ifdef __GLX_ALIGN64
	50	#define __GLX_MEM_COPY(dst,src,n) memmove(dst,src,n)
	51	#define __GLX_GET_DOUBLE(dst,src) __GLX_MEM_COPY(&dst,src,8)
	52	#else
	53	#define __GLX_GET_DOUBLE(dst,src) (dst) = ((GLdouble)(src))
	54	#endif
	55
	56	extern void __glXMemInit(void);
	57
	58	extern xGLXSingleReply __glXReply;
	59
	60	#define __GLX_BEGIN_REPLY(size) \
	61	__glXReply.length = __GLX_PAD(size) >> 2; \
	62	__glXReply.type = X_Reply; \
	63	__glXReply.sequenceNumber = client->sequence;
	64
65	#define __GLX_SEND_HEADER() \
66	WriteToClient (client, sz_xGLXSingleReply, &__glXReply);
67
68	#define __GLX_PUT_RETVAL(a) \
69	__glXReply.retval = (a);
70
71	#define __GLX_PUT_SIZE(a) \
72	__glXReply.size = (a);
73
74	#define __GLX_PUT_RENDERMODE(m) \
75	__glXReply.pad3 = (m)
76
77	/*
78	** Get a buffer to hold returned data, with the given alignment. If we have
79	** to realloc, allocate size+align, in case the pointer has to be bumped for
80	** alignment. The answerBuffer should already be aligned.
81	**
82	** NOTE: the cast (long)res below assumes a long is large enough to hold a
83	** pointer.
84	*/
85	#define __GLX_GET_ANSWER_BUFFER(res,cl,size,align) \
86	if ((size) > sizeof(answerBuffer)) { \
87	int bump; \
88	if ((cl)->returnBufSize < (size)+(align)) { \
89	(cl)->returnBuf = (GLbyte*)realloc((cl)->returnBuf, \
90	(size)+(align)); \
91	if (!(cl)->returnBuf) { \
92	return BadAlloc; \
93	} \
94	(cl)->returnBufSize = (size)+(align); \
95	} \
96	res = (char*)cl->returnBuf; \
97	bump = (long)(res) % (align); \
98	if (bump) res += (align) - (bump); \
99	} else { \
100	res = (char *)answerBuffer; \
101	}
102
103	#define __GLX_PUT_BYTE() \
104	(GLbyte )&__glXReply.pad3 = (GLbyte )answer
105
106	#define __GLX_PUT_SHORT() \
107	(GLshort )&__glXReply.pad3 = (GLshort )answer
108
109	#define __GLX_PUT_INT() \
110	(GLint )&__glXReply.pad3 = (GLint )answer
111
112	#define __GLX_PUT_FLOAT() \
113	(GLfloat )&__glXReply.pad3 = (GLfloat )answer
114
115	#define __GLX_PUT_DOUBLE() \
116	(GLdouble )&__glXReply.pad3 = (GLdouble )answer
117
118	#define __GLX_SEND_BYTE_ARRAY(len) \
119	WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT8), answer)
120
121	#define __GLX_SEND_SHORT_ARRAY(len) \
122	WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT16), answer)
123
124	#define __GLX_SEND_INT_ARRAY(len) \
125	WriteToClient(client, (len)*__GLX_SIZE_INT32, answer)
126
127	#define __GLX_SEND_FLOAT_ARRAY(len) \
128	WriteToClient(client, (len)*__GLX_SIZE_FLOAT32, answer)
129
130	#define __GLX_SEND_DOUBLE_ARRAY(len) \
131	WriteToClient(client, (len)*__GLX_SIZE_FLOAT64, answer)
132
133	#define __GLX_SEND_VOID_ARRAY(len) __GLX_SEND_BYTE_ARRAY(len)
134	#define __GLX_SEND_UBYTE_ARRAY(len) __GLX_SEND_BYTE_ARRAY(len)
135	#define __GLX_SEND_USHORT_ARRAY(len) __GLX_SEND_SHORT_ARRAY(len)
136	#define __GLX_SEND_UINT_ARRAY(len) __GLX_SEND_INT_ARRAY(len)
137
138	/*
139	** PERFORMANCE NOTE:
140	** Machine dependent optimizations abound here; these swapping macros can
141	** conceivably be replaced with routines that do the job faster.
142	*/
143	#define __GLX_DECLARE_SWAP_VARIABLES \
144	GLbyte sw
145
146	#define __GLX_DECLARE_SWAP_ARRAY_VARIABLES \
147	GLbyte *swapPC; \
148	GLbyte *swapEnd
149
150	#define __GLX_SWAP_INT(pc) \
151	sw = ((GLbyte *)(pc))[0]; \
152	((GLbyte )(pc))[0] = ((GLbyte )(pc))[3]; \
153	((GLbyte *)(pc))[3] = sw; \
154	sw = ((GLbyte *)(pc))[1]; \
155	((GLbyte )(pc))[1] = ((GLbyte )(pc))[2]; \
156	((GLbyte *)(pc))[2] = sw;
157
158	#define __GLX_SWAP_SHORT(pc) \
159	sw = ((GLbyte *)(pc))[0]; \
160	((GLbyte )(pc))[0] = ((GLbyte )(pc))[1]; \
161	((GLbyte *)(pc))[1] = sw;
162
163	#define __GLX_SWAP_DOUBLE(pc) \
164	sw = ((GLbyte *)(pc))[0]; \
165	((GLbyte )(pc))[0] = ((GLbyte )(pc))[7]; \
166	((GLbyte *)(pc))[7] = sw; \
167	sw = ((GLbyte *)(pc))[1]; \
168	((GLbyte )(pc))[1] = ((GLbyte )(pc))[6]; \
169	((GLbyte *)(pc))[6] = sw; \
170	sw = ((GLbyte *)(pc))[2]; \
171	((GLbyte )(pc))[2] = ((GLbyte )(pc))[5]; \
172	((GLbyte *)(pc))[5] = sw; \
173	sw = ((GLbyte *)(pc))[3]; \
174	((GLbyte )(pc))[3] = ((GLbyte )(pc))[4]; \
175	((GLbyte *)(pc))[4] = sw;
176
177	#define __GLX_SWAP_FLOAT(pc) \
178	sw = ((GLbyte *)(pc))[0]; \
179	((GLbyte )(pc))[0] = ((GLbyte )(pc))[3]; \
180	((GLbyte *)(pc))[3] = sw; \
181	sw = ((GLbyte *)(pc))[1]; \
182	((GLbyte )(pc))[1] = ((GLbyte )(pc))[2]; \
183	((GLbyte *)(pc))[2] = sw;
184
185	#define __GLX_SWAP_INT_ARRAY(pc, count) \
186	swapPC = ((GLbyte *)(pc)); \
187	swapEnd = ((GLbyte )(pc)) + (count)__GLX_SIZE_INT32;\
188	while (swapPC < swapEnd) { \
189	__GLX_SWAP_INT(swapPC); \
190	swapPC += __GLX_SIZE_INT32; \
191	}
192
193	#define __GLX_SWAP_SHORT_ARRAY(pc, count) \
194	swapPC = ((GLbyte *)(pc)); \
195	swapEnd = ((GLbyte )(pc)) + (count)__GLX_SIZE_INT16;\
196	while (swapPC < swapEnd) { \
197	__GLX_SWAP_SHORT(swapPC); \
198	swapPC += __GLX_SIZE_INT16; \
199	}
200
201	#define __GLX_SWAP_DOUBLE_ARRAY(pc, count) \
202	swapPC = ((GLbyte *)(pc)); \
203	swapEnd = ((GLbyte )(pc)) + (count)__GLX_SIZE_FLOAT64;\
204	while (swapPC < swapEnd) { \
205	__GLX_SWAP_DOUBLE(swapPC); \
206	swapPC += __GLX_SIZE_FLOAT64; \
207	}
208
209	#define __GLX_SWAP_FLOAT_ARRAY(pc, count) \
210	swapPC = ((GLbyte *)(pc)); \
211	swapEnd = ((GLbyte )(pc)) + (count)__GLX_SIZE_FLOAT32;\
212	while (swapPC < swapEnd) { \
213	__GLX_SWAP_FLOAT(swapPC); \
214	swapPC += __GLX_SIZE_FLOAT32; \
215	}
216
217	#define __GLX_SWAP_REPLY_HEADER() \
218	__GLX_SWAP_SHORT(&__glXReply.sequenceNumber); \
219	__GLX_SWAP_INT(&__glXReply.length);
220
221	#define __GLX_SWAP_REPLY_RETVAL() \
222	__GLX_SWAP_INT(&__glXReply.retval)
223
224	#define __GLX_SWAP_REPLY_SIZE() \
225	__GLX_SWAP_INT(&__glXReply.size)
226
227	#endif /* !__GLX_unpack_h__ */