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-rw-r--r--GL/glx/indirect_program.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/GL/glx/indirect_program.c b/GL/glx/indirect_program.c
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+++ b/GL/glx/indirect_program.c
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+/*
+ * (C) Copyright IBM Corporation 2005, 2006
+ * 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, sub license,
+ * 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 and this permission notice (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS 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.
+ */
+
+/**
+ * \file indirect_program.c
+ * Hand-coded routines needed to support programmable pipeline extensions.
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#define NEED_REPLIES
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "glxserver.h"
+#include "glxext.h"
+#include "singlesize.h"
+#include "unpack.h"
+#include "indirect_size_get.h"
+#include "indirect_dispatch.h"
+#include "glapitable.h"
+#include "glapi.h"
+#include "glthread.h"
+#include "dispatch.h"
+#include "glapioffsets.h"
+
+#ifdef __linux__
+#include <byteswap.h>
+#elif defined(__OpenBSD__)
+#include <sys/endian.h>
+#define bswap_16 __swap16
+#define bswap_32 __swap32
+#define bswap_64 __swap64
+#else
+#include <sys/endian.h>
+#define bswap_16 bswap16
+#define bswap_32 bswap32
+#define bswap_64 bswap64
+#endif
+
+static int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
+ unsigned get_programiv_offset, unsigned get_program_string_offset,
+ Bool do_swap);
+
+/**
+ * Handle both types of glGetProgramString calls.
+ *
+ * This single function handles both \c glGetProgramStringARB and
+ * \c glGetProgramStringNV. The dispatch offsets for the functions to use
+ * for \c glGetProgramivARB and \c glGetProgramStringARB are passed in by the
+ * caller. These can be the offsets of either the ARB versions or the NV
+ * versions.
+ */
+int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
+ unsigned get_programiv_offset,
+ unsigned get_program_string_offset,
+ Bool do_swap)
+{
+ xGLXVendorPrivateWithReplyReq * const req =
+ (xGLXVendorPrivateWithReplyReq *) pc;
+ int error;
+ __GLXcontext * const cx = __glXForceCurrent(cl, req->contextTag, & error);
+ ClientPtr client = cl->client;
+
+
+ pc += __GLX_VENDPRIV_HDR_SIZE;
+ if (cx != NULL) {
+ GLenum target;
+ GLenum pname;
+ GLint compsize = 0;
+ char *answer = NULL, answerBuffer[200];
+
+ if (do_swap) {
+ target = (GLenum) bswap_32(*(int *)(pc + 0));
+ pname = (GLenum) bswap_32(*(int *)(pc + 4));
+ }
+ else {
+ target = *(GLenum *)(pc + 0);
+ pname = *(GLuint *)(pc + 4);
+ }
+
+ /* The value of the GL_PROGRAM_LENGTH_ARB and GL_PROGRAM_LENGTH_NV
+ * enumerants is the same.
+ */
+ CALL_by_offset(GET_DISPATCH(),
+ (void (GLAPIENTRYP)(GLuint, GLenum, GLint *)),
+ get_programiv_offset,
+ (target, GL_PROGRAM_LENGTH_ARB, &compsize));
+
+ if (compsize != 0) {
+ __GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
+ __glXClearErrorOccured();
+
+ CALL_by_offset(GET_DISPATCH(),
+ (void (GLAPIENTRYP)(GLuint, GLenum, GLubyte *)),
+ get_program_string_offset,
+ (target, pname, answer));
+ }
+
+ if (__glXErrorOccured()) {
+ __GLX_BEGIN_REPLY(0);
+ __GLX_SEND_HEADER();
+ } else {
+ __GLX_BEGIN_REPLY(compsize);
+ ((xGLXGetTexImageReply *)&__glXReply)->width = compsize;
+ __GLX_SEND_HEADER();
+ __GLX_SEND_VOID_ARRAY(compsize);
+ }
+
+ error = Success;
+ }
+
+ return error;
+}
+
+int __glXDisp_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
+{
+ return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
+ _gloffset_GetProgramStringARB, False);
+}
+
+
+int __glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
+{
+ return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
+ _gloffset_GetProgramStringARB, True);
+}
+
+
+int __glXDisp_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
+{
+ return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
+ _gloffset_GetProgramStringNV, False);
+}
+
+
+int __glXDispSwap_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
+{
+ return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
+ _gloffset_GetProgramStringNV, True);
+}