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Diffstat (limited to 'glx/indirect_program.c')
| -rw-r--r-- | glx/indirect_program.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/glx/indirect_program.c b/glx/indirect_program.c new file mode 100644 index 000000000..d23a0a9e6 --- /dev/null +++ b/glx/indirect_program.c @@ -0,0 +1,150 @@ +/* + * (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 "glxbyteorder.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" + +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); +} |