[deb_xorg-server.git] / hw / dmx / glxProxy / unpack.h

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