Retire miniglx and move the actual glx code up to src/glx

1 files changed, 243 insertions, 0 deletions

diff --git a/src/glx/packrender.h b/src/glx/packrender.h
new file mode 100644
index 0000000..30f6d44
--- /dev/null
+++ b/src/glx/packrender.h
@@ -0,0 +1,243 @@
+#ifndef __GLX_packrender_h__
+#define __GLX_packrender_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.
+ */
+
+#include "glxclient.h"
+
+/*
+** The macros in this header convert the client machine's native data types to
+** wire protocol data types.  The header is part of the porting layer of the
+** client library, and it is intended that hardware vendors will rewrite this
+** header to suit their own machines.
+*/
+
+/*
+** Pad a count of bytes to the nearest multiple of 4.  The X protocol
+** transfers data in 4 byte quantities, so this macro is used to
+** insure the right amount of data being sent.
+*/
+#define __GLX_PAD(a) (((a)+3) & ~3)
+
+/*
+** Network size parameters
+*/
+#define sz_double 8
+
+/* Setup for all commands */
+#define __GLX_DECLARE_VARIABLES()               \
+   __GLXcontext *gc;                            \
+   GLubyte *pc, *pixelHeaderPC;                 \
+   GLuint compsize, cmdlen
+
+#define __GLX_LOAD_VARIABLES()     \
+   gc = __glXGetCurrentContext();  \
+   pc = gc->pc;                    \
+   /* Muffle compilers */                  \
+   cmdlen = 0;         (void)cmdlen;          \
+   compsize = 0;       (void)compsize;        \
+   pixelHeaderPC = 0;  (void)pixelHeaderPC
+
+/*
+** Variable sized command support macro.  This macro is used by calls
+** that are potentially larger than __GLX_SMALL_RENDER_CMD_SIZE.
+** Because of their size, they may not automatically fit in the buffer.
+** If the buffer can't hold the command then it is flushed so that
+** the command will fit in the next buffer.
+*/
+#define __GLX_BEGIN_VARIABLE(opcode,size)       \
+   if (pc + (size) > gc->bufEnd) {              \
+      pc = __glXFlushRenderBuffer(gc, pc);      \
+   }                                            \
+   __GLX_PUT_SHORT(0,size);                     \
+   __GLX_PUT_SHORT(2,opcode)
+
+#define __GLX_BEGIN_VARIABLE_LARGE(opcode,size) \
+   pc = __glXFlushRenderBuffer(gc, pc);         \
+   __GLX_PUT_LONG(0,size);                      \
+   __GLX_PUT_LONG(4,opcode)
+
+#define __GLX_BEGIN_VARIABLE_WITH_PIXEL(opcode,size)  \
+   if (pc + (size) > gc->bufEnd) {                    \
+      pc = __glXFlushRenderBuffer(gc, pc);            \
+   }                                                  \
+   __GLX_PUT_SHORT(0,size);                           \
+   __GLX_PUT_SHORT(2,opcode);                         \
+   pc += __GLX_RENDER_HDR_SIZE;                       \
+   pixelHeaderPC = pc;                                \
+   pc += __GLX_PIXEL_HDR_SIZE
+
+#define __GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL(opcode,size)  \
+   pc = __glXFlushRenderBuffer(gc, pc);                     \
+   __GLX_PUT_LONG(0,size);                                  \
+   __GLX_PUT_LONG(4,opcode);                                \
+   pc += __GLX_RENDER_LARGE_HDR_SIZE;                       \
+   pixelHeaderPC = pc;                                      \
+   pc += __GLX_PIXEL_HDR_SIZE
+
+#define __GLX_BEGIN_VARIABLE_WITH_PIXEL_3D(opcode,size)  \
+   if (pc + (size) > gc->bufEnd) {                       \
+      pc = __glXFlushRenderBuffer(gc, pc);               \
+   }                                                     \
+   __GLX_PUT_SHORT(0,size);                              \
+   __GLX_PUT_SHORT(2,opcode);                            \
+   pc += __GLX_RENDER_HDR_SIZE;                          \
+   pixelHeaderPC = pc;                                   \
+   pc += __GLX_PIXEL_3D_HDR_SIZE
+
+#define __GLX_BEGIN_VARIABLE_LARGE_WITH_PIXEL_3D(opcode,size)  \
+   pc = __glXFlushRenderBuffer(gc, pc);                        \
+   __GLX_PUT_LONG(0,size);                                     \
+   __GLX_PUT_LONG(4,opcode);                                   \
+   pc += __GLX_RENDER_LARGE_HDR_SIZE;                          \
+   pixelHeaderPC = pc;                                         \
+   pc += __GLX_PIXEL_3D_HDR_SIZE
+
+/*
+** Fixed size command support macro.  This macro is used by calls that
+** are never larger than __GLX_SMALL_RENDER_CMD_SIZE.  Because they
+** always fit in the buffer, and because the buffer promises to
+** maintain enough room for them, we don't need to check for space
+** before doing the storage work.
+*/
+#define __GLX_BEGIN(opcode,size) \
+   __GLX_PUT_SHORT(0,size);      \
+   __GLX_PUT_SHORT(2,opcode)
+
+/*
+** Finish a rendering command by advancing the pc.  If the pc is now past
+** the limit pointer then there is no longer room for a
+** __GLX_SMALL_RENDER_CMD_SIZE sized command, which will break the
+** assumptions present in the __GLX_BEGIN macro.  In this case the
+** rendering buffer is flushed out into the X protocol stream (which may
+** or may not do I/O).
+*/
+#define __GLX_END(size)           \
+   pc += size;                       \
+   if (pc > gc->limit) {                  \
+      (void) __glXFlushRenderBuffer(gc, pc);    \
+   } else {                                     \
+      gc->pc = pc;                              \
+   }
+
+/* Array copy macros */
+#define __GLX_MEM_COPY(dest,src,bytes)          \
+   if (src && dest)                             \
+      memcpy(dest, src, bytes)
+
+/* Single item copy macros */
+#define __GLX_PUT_CHAR(offset,a)                \
+   *((INT8 *) (pc + offset)) = a
+
+#ifndef _CRAY
+#define __GLX_PUT_SHORT(offset,a)               \
+   *((INT16 *) (pc + offset)) = a
+
+#define __GLX_PUT_LONG(offset,a)                \
+   *((INT32 *) (pc + offset)) = a
+
+#define __GLX_PUT_FLOAT(offset,a)               \
+   *((FLOAT32 *) (pc + offset)) = a
+
+#else
+#define __GLX_PUT_SHORT(offset,a)               \
+   { GLubyte *cp = (pc+offset);                 \
+      int shift = (64-16) - ((int)(cp) >> (64-6));                      \
+      *(int *)cp = (*(int *)cp & ~(0xffff << shift)) | ((a & 0xffff) << shift); }
+
+#define __GLX_PUT_LONG(offset,a)                \
+   { GLubyte *cp = (pc+offset);                 \
+      int shift = (64-32) - ((int)(cp) >> (64-6));                      \
+      *(int *)cp = (*(int *)cp & ~(0xffffffff << shift)) | ((a & 0xffffffff) << shift); }
+
+#define __GLX_PUT_FLOAT(offset,a)               \
+   gl_put_float((pc + offset),a)
+
+#define __GLX_PUT_DOUBLE(offset,a)              \
+   gl_put_double(pc + offset, a)
+
+extern void gl_put_float( /*GLubyte *, struct cray_single */ );
+extern void gl_put_double( /*GLubyte *, struct cray_double */ );
+#endif
+
+#ifndef _CRAY
+
+#ifdef __GLX_ALIGN64
+/*
+** This can certainly be done better for a particular machine
+** architecture!
+*/
+#define __GLX_PUT_DOUBLE(offset,a)              \
+   __GLX_MEM_COPY(pc + offset, &a, 8)
+#else
+#define __GLX_PUT_DOUBLE(offset,a)              \
+   *((FLOAT64 *) (pc + offset)) = a
+#endif
+
+#endif
+
+#define __GLX_PUT_CHAR_ARRAY(offset,a,alen)                 \
+   __GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT8)
+
+#ifndef _CRAY
+#define __GLX_PUT_SHORT_ARRAY(offset,a,alen)                \
+   __GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT16)
+
+#define __GLX_PUT_LONG_ARRAY(offset,a,alen)                 \
+   __GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_INT32)
+
+#define __GLX_PUT_FLOAT_ARRAY(offset,a,alen)                   \
+   __GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_FLOAT32)
+
+#define __GLX_PUT_DOUBLE_ARRAY(offset,a,alen)                  \
+   __GLX_MEM_COPY(pc + offset, a, alen * __GLX_SIZE_FLOAT64)
+
+#else
+#define __GLX_PUT_SHORT_ARRAY(offset,a,alen)                            \
+   gl_put_short_array((GLubyte *)(pc + offset), a, alen * __GLX_SIZE_INT16)
+
+#define __GLX_PUT_LONG_ARRAY(offset,a,alen)                             \
+   gl_put_long_array((GLubyte *)(pc + offset), (long *)a, alen * __GLX_SIZE_INT32)
+
+#define __GLX_PUT_FLOAT_ARRAY(offset,a,alen)                            \
+   gl_put_float_array((GLubyte *)(pc + offset), (float *)a, alen * __GLX_SIZE_FLOAT32)
+
+#define __GLX_PUT_DOUBLE_ARRAY(offset,a,alen)                           \
+   gl_put_double_array((GLubyte *)(pc + offset), (double *)a, alen * __GLX_SIZE_FLOAT64)
+
+extern gl_put_short_array(GLubyte *, short *, int);
+extern gl_put_long_array(GLubyte *, long *, int);
+extern gl_put_float_array(GLubyte *, float *, int);
+extern gl_put_double_array(GLubyte *, double *, int);
+
+#endif /* _CRAY */
+
+#endif /* !__GLX_packrender_h__ */