2004-10-25 22:09:16 +01:00
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#ifndef __GLX_packrender_h__
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#define __GLX_packrender_h__
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/*
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Update to SGI FreeB 2.0.
Under the terms of version 1.1, "once Covered Code has been published
under a particular version of the License, Recipient may, for the
duration of the License, continue to use it under the terms of that
version, or choose to use such Covered Code under the terms of any
subsequent version published by SGI."
FreeB 2.0 license refers to "dates of first publication". They are here
taken to be 1991-2000, as noted in the original license text:
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
Official FreeB 2.0 text:
http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf
As always, this code has not been tested for conformance with the OpenGL
specification. OpenGL conformance testing is available from
http://khronos.org/ and is required for use of the OpenGL logo in
product advertising and promotion.
2008-09-19 22:16:53 +01:00
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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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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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2004-10-25 22:09:16 +01:00
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#include "glxclient.h"
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/*
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** The macros in this header convert the client machine's native data types to
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** wire protocol data types. The header is part of the porting layer of the
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** client library, and it is intended that hardware vendors will rewrite this
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** header to suit their own machines.
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*/
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/*
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** Pad a count of bytes to the nearest multiple of 4. The X protocol
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** transfers data in 4 byte quantities, so this macro is used to
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** insure the right amount of data being sent.
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*/
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#define __GLX_PAD(a) (((a)+3) & ~3)
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/*
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2008-10-13 13:29:23 +01:00
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** Network size parameters
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*/
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2004-10-25 22:09:16 +01:00
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#define sz_double 8
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/* Setup for all commands */
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2008-10-13 13:29:23 +01:00
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#define __GLX_DECLARE_VARIABLES() \
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struct glx_context *gc; \
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2008-10-13 13:29:23 +01:00
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GLubyte *pc, *pixelHeaderPC; \
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GLuint compsize, cmdlen
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#define __GLX_LOAD_VARIABLES() \
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gc = __glXGetCurrentContext(); \
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pc = gc->pc; \
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/* Muffle compilers */ \
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2021-08-02 22:39:27 +01:00
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cmdlen = 0; (void)cmdlen; \
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compsize = 0; (void)compsize; \
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pixelHeaderPC = NULL; (void)pixelHeaderPC
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2004-10-25 22:09:16 +01:00
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/*
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** Variable sized command support macro. This macro is used by calls
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** that are potentially larger than __GLX_SMALL_RENDER_CMD_SIZE.
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** Because of their size, they may not automatically fit in the buffer.
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** If the buffer can't hold the command then it is flushed so that
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** the command will fit in the next buffer.
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*/
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2008-10-13 13:29:23 +01:00
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#define __GLX_BEGIN_VARIABLE(opcode,size) \
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if (pc + (size) > gc->bufEnd) { \
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pc = __glXFlushRenderBuffer(gc, pc); \
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} \
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__GLX_PUT_SHORT(0,size); \
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__GLX_PUT_SHORT(2,opcode)
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#define __GLX_BEGIN_VARIABLE_LARGE(opcode,size) \
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pc = __glXFlushRenderBuffer(gc, pc); \
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__GLX_PUT_LONG(0,size); \
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__GLX_PUT_LONG(4,opcode)
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#define __GLX_BEGIN_VARIABLE_WITH_PIXEL(opcode,size) \
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if (pc + (size) > gc->bufEnd) { \
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pc = __glXFlushRenderBuffer(gc, pc); \
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} \
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__GLX_PUT_SHORT(0,size); \
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__GLX_PUT_SHORT(2,opcode); \
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pc += __GLX_RENDER_HDR_SIZE; \
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pixelHeaderPC = pc; \
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pc += __GLX_PIXEL_HDR_SIZE
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#define __GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL(opcode,size) \
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pc = __glXFlushRenderBuffer(gc, pc); \
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__GLX_PUT_LONG(0,size); \
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__GLX_PUT_LONG(4,opcode); \
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pc += __GLX_RENDER_LARGE_HDR_SIZE; \
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pixelHeaderPC = pc; \
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pc += __GLX_PIXEL_HDR_SIZE
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#define __GLX_BEGIN_VARIABLE_WITH_PIXEL_3D(opcode,size) \
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if (pc + (size) > gc->bufEnd) { \
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pc = __glXFlushRenderBuffer(gc, pc); \
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} \
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__GLX_PUT_SHORT(0,size); \
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__GLX_PUT_SHORT(2,opcode); \
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pc += __GLX_RENDER_HDR_SIZE; \
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pixelHeaderPC = pc; \
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pc += __GLX_PIXEL_3D_HDR_SIZE
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#define __GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL_3D(opcode,size) \
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pc = __glXFlushRenderBuffer(gc, pc); \
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__GLX_PUT_LONG(0,size); \
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__GLX_PUT_LONG(4,opcode); \
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pc += __GLX_RENDER_LARGE_HDR_SIZE; \
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pixelHeaderPC = pc; \
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pc += __GLX_PIXEL_3D_HDR_SIZE
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2004-10-25 22:09:16 +01:00
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/*
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** Fixed size command support macro. This macro is used by calls that
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** are never larger than __GLX_SMALL_RENDER_CMD_SIZE. Because they
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** always fit in the buffer, and because the buffer promises to
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** maintain enough room for them, we don't need to check for space
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** before doing the storage work.
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*/
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#define __GLX_BEGIN(opcode,size) \
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2008-10-13 13:29:23 +01:00
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__GLX_PUT_SHORT(0,size); \
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__GLX_PUT_SHORT(2,opcode)
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2004-10-25 22:09:16 +01:00
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/*
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** Finish a rendering command by advancing the pc. If the pc is now past
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** the limit pointer then there is no longer room for a
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** __GLX_SMALL_RENDER_CMD_SIZE sized command, which will break the
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** assumptions present in the __GLX_BEGIN macro. In this case the
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** rendering buffer is flushed out into the X protocol stream (which may
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** or may not do I/O).
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*/
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2008-10-13 13:29:23 +01:00
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#define __GLX_END(size) \
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pc += size; \
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if (pc > gc->limit) { \
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(void) __glXFlushRenderBuffer(gc, pc); \
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} else { \
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gc->pc = pc; \
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}
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2004-10-25 22:09:16 +01:00
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/* Array copy macros */
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2008-10-13 13:29:23 +01:00
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#define __GLX_MEM_COPY(dest,src,bytes) \
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if (src && dest) \
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memcpy(dest, src, bytes)
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2004-10-25 22:09:16 +01:00
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/* Single item copy macros */
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_CHAR(offset,a) \
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2015-06-24 02:41:38 +01:00
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do { \
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int8_t __tmp = (a); \
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memcpy((pc + (offset)), &__tmp, 1); \
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} while (0)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_SHORT(offset,a) \
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2015-06-24 02:41:38 +01:00
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do { \
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int16_t __tmp = (a); \
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memcpy((pc + (offset)), &__tmp, 2); \
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} while (0)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_LONG(offset,a) \
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2015-06-24 02:41:38 +01:00
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do { \
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int32_t __tmp = (a); \
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memcpy((pc + (offset)), &__tmp, 4); \
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} while (0)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_FLOAT(offset,a) \
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2015-06-24 02:41:38 +01:00
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do { \
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float __tmp = (a); \
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memcpy((pc + (offset)), &__tmp, 4); \
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} while (0)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_DOUBLE(offset,a) \
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2015-06-24 02:41:38 +01:00
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do { \
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double __tmp = (a); \
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memcpy((pc + (offset)), &__tmp, 8); \
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} while (0)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_CHAR_ARRAY(offset,a,alen) \
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__GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT8)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_SHORT_ARRAY(offset,a,alen) \
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__GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT16)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_LONG_ARRAY(offset,a,alen) \
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__GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT32)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_FLOAT_ARRAY(offset,a,alen) \
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__GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_FLOAT32)
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2004-10-25 22:09:16 +01:00
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2008-10-13 13:29:23 +01:00
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#define __GLX_PUT_DOUBLE_ARRAY(offset,a,alen) \
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__GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_FLOAT64)
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2004-10-25 22:09:16 +01:00
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#endif /* !__GLX_packrender_h__ */
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