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author | marha <marha@users.sourceforge.net> | 2010-12-29 12:20:21 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-12-29 12:20:21 +0000 |
commit | 053f5dfd42ade05252e586a282e34906db10828d (patch) | |
tree | de215580ce205409a6d810a005c6c5909f3145d1 /mesalib/src/mesa/main/remap.c | |
parent | 04ceb8c4a0cca3d8682f094d1d6faed8f693afb5 (diff) | |
parent | 807c6931fe683fd844ceec1b023232181e6aae03 (diff) | |
download | vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.tar.gz vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.tar.bz2 vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.zip |
svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/main/remap.c')
-rw-r--r-- | mesalib/src/mesa/main/remap.c | 416 |
1 files changed, 226 insertions, 190 deletions
diff --git a/mesalib/src/mesa/main/remap.c b/mesalib/src/mesa/main/remap.c index 2341f8488..6da31deb3 100644 --- a/mesalib/src/mesa/main/remap.c +++ b/mesalib/src/mesa/main/remap.c @@ -1,190 +1,226 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org> - * - * 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 and this permission notice 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 - * THE AUTHORS OR COPYRIGHT HOLDERS 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 remap.c - * Remap table management. - * - * Entries in the dispatch table are either static or dynamic. The - * dispatch table is shared by mesa core and glapi. When they are - * built separately, it is possible that a static entry in mesa core - * is dynamic, or assigned a different static offset, in glapi. The - * remap table is in charge of mapping a static entry in mesa core to - * a dynamic entry, or the corresponding static entry, in glapi. - */ - -#include "mfeatures.h" - -#if FEATURE_remap_table - -#include "remap.h" -#include "imports.h" -#include "glapi/glapi.h" - -#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) -#define MAX_ENTRY_POINTS 16 - -static const char *_mesa_function_pool; - -/** - * Return the spec string associated with the given function index. - * The index is available from including remap_helper.h. - * - * \param func_index an opaque function index. - * - * \return the spec string associated with the function index, or NULL. - */ -const char * -_mesa_get_function_spec(GLint func_index) -{ - return _mesa_function_pool + func_index; -} - - -/** - * Map a function by its spec. The function will be added to glapi, - * and the dispatch offset will be returned. - * - * \param spec a '\0'-separated string array specifying a function. - * It begins with the parameter signature of the function, - * followed by the names of the entry points. An empty entry - * point name terminates the array. - * - * \return the offset of the (re-)mapped function in the dispatch - * table, or -1. - */ -GLint -_mesa_map_function_spec(const char *spec) -{ - const char *signature; - const char *names[MAX_ENTRY_POINTS + 1]; - GLint num_names = 0; - - if (!spec) - return -1; - - signature = spec; - spec += strlen(spec) + 1; - - /* spec is terminated by an empty string */ - while (*spec) { - names[num_names] = spec; - num_names++; - if (num_names >= MAX_ENTRY_POINTS) - break; - spec += strlen(spec) + 1; - } - if (!num_names) - return -1; - - names[num_names] = NULL; - - /* add the entry points to the dispatch table */ - return _glapi_add_dispatch(names, signature); -} - - -/** - * Map an array of functions. This is a convenient function for - * use with arrays available from including remap_helper.h. - * - * Note that the dispatch offsets of the functions are not returned. - * If they are needed, _mesa_map_function_spec() should be used. - * - * \param func_array an array of function remaps. - */ -void -_mesa_map_function_array(const struct gl_function_remap *func_array) -{ - GLint i; - - if (!func_array) - return; - - for (i = 0; func_array[i].func_index != -1; i++) { - const char *spec; - GLint offset; - - spec = _mesa_get_function_spec(func_array[i].func_index); - if (!spec) { - _mesa_problem(NULL, "invalid function index %d", - func_array[i].func_index); - continue; - } - - offset = _mesa_map_function_spec(spec); - /* error checks */ - if (offset < 0) { - const char *name = spec + strlen(spec) + 1; - _mesa_warning(NULL, "failed to remap %s", name); - } - else if (func_array[i].dispatch_offset >= 0 && - offset != func_array[i].dispatch_offset) { - const char *name = spec + strlen(spec) + 1; - _mesa_problem(NULL, "%s should be mapped to %d, not %d", - name, func_array[i].dispatch_offset, offset); - } - } -} - - -/** - * Initialize the remap table. This is called in one_time_init(). - * The remap table needs to be initialized before calling the - * CALL/GET/SET macros defined in main/dispatch.h. - */ -void -_mesa_do_init_remap_table(const char *pool, - int size, - const struct gl_function_pool_remap *remap) -{ - static GLboolean initialized = GL_FALSE; - GLint i; - - if (initialized) - return; - initialized = GL_TRUE; - _mesa_function_pool = pool; - - /* initialize the remap table */ - for (i = 0; i < size; i++) { - GLint offset; - const char *spec; - - /* sanity check */ - ASSERT(i == remap[i].remap_index); - spec = _mesa_function_pool + remap[i].pool_index; - - offset = _mesa_map_function_spec(spec); - /* store the dispatch offset in the remap table */ - driDispatchRemapTable[i] = offset; - if (offset < 0) - _mesa_warning(NULL, "failed to remap index %d", i); - } -} - - -#endif /* FEATURE_remap_table */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * 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 and this permission notice 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 remap.c
+ * Remap table management.
+ *
+ * Entries in the dispatch table are either static or dynamic. The
+ * dispatch table is shared by mesa core and glapi. When they are
+ * built separately, it is possible that a static entry in mesa core
+ * is dynamic, or assigned a different static offset, in glapi. The
+ * remap table is in charge of mapping a static entry in mesa core to
+ * a dynamic entry, or the corresponding static entry, in glapi.
+ */
+
+#include "mfeatures.h"
+
+#if FEATURE_remap_table
+
+#include "remap.h"
+#include "imports.h"
+#include "glapi/glapi.h"
+
+#define MAX_ENTRY_POINTS 16
+
+#define need_MESA_remap_table
+#include "main/remap_helper.h"
+
+
+/* this is global for quick access */
+int driDispatchRemapTable[driDispatchRemapTable_size];
+
+
+/**
+ * Return the spec string associated with the given function index.
+ * The index is available from including remap_helper.h.
+ *
+ * \param func_index an opaque function index.
+ *
+ * \return the spec string associated with the function index, or NULL.
+ */
+const char *
+_mesa_get_function_spec(GLint func_index)
+{
+ if (func_index < Elements(_mesa_function_pool))
+ return _mesa_function_pool + func_index;
+ else
+ return NULL;
+}
+
+
+/**
+ * Map a function by its spec. The function will be added to glapi,
+ * and the dispatch offset will be returned.
+ *
+ * \param spec a '\0'-separated string array specifying a function.
+ * It begins with the parameter signature of the function,
+ * followed by the names of the entry points. An empty entry
+ * point name terminates the array.
+ *
+ * \return the offset of the (re-)mapped function in the dispatch
+ * table, or -1.
+ */
+GLint
+_mesa_map_function_spec(const char *spec)
+{
+ const char *signature;
+ const char *names[MAX_ENTRY_POINTS + 1];
+ GLint num_names = 0;
+
+ if (!spec)
+ return -1;
+
+ signature = spec;
+ spec += strlen(spec) + 1;
+
+ /* spec is terminated by an empty string */
+ while (*spec) {
+ names[num_names] = spec;
+ num_names++;
+ if (num_names >= MAX_ENTRY_POINTS)
+ break;
+ spec += strlen(spec) + 1;
+ }
+ if (!num_names)
+ return -1;
+
+ names[num_names] = NULL;
+
+ /* add the entry points to the dispatch table */
+ return _glapi_add_dispatch(names, signature);
+}
+
+
+/**
+ * Map an array of functions. This is a convenient function for
+ * use with arrays available from including remap_helper.h.
+ *
+ * Note that the dispatch offsets of the functions are not returned.
+ * If they are needed, _mesa_map_function_spec() should be used.
+ *
+ * \param func_array an array of function remaps.
+ */
+void
+_mesa_map_function_array(const struct gl_function_remap *func_array)
+{
+ GLint i;
+
+ if (!func_array)
+ return;
+
+ for (i = 0; func_array[i].func_index != -1; i++) {
+ const char *spec;
+ GLint offset;
+
+ spec = _mesa_get_function_spec(func_array[i].func_index);
+ if (!spec) {
+ _mesa_problem(NULL, "invalid function index %d",
+ func_array[i].func_index);
+ continue;
+ }
+
+ offset = _mesa_map_function_spec(spec);
+ /* error checks */
+ if (offset < 0) {
+ const char *name = spec + strlen(spec) + 1;
+ _mesa_warning(NULL, "failed to remap %s", name);
+ }
+ else if (func_array[i].dispatch_offset >= 0 &&
+ offset != func_array[i].dispatch_offset) {
+ const char *name = spec + strlen(spec) + 1;
+ _mesa_problem(NULL, "%s should be mapped to %d, not %d",
+ name, func_array[i].dispatch_offset, offset);
+ }
+ }
+}
+
+
+/**
+ * Map the functions which are already static.
+ *
+ * When a extension function are incorporated into the ABI, the
+ * extension suffix is usually stripped. Mapping such functions
+ * makes sure the alternative names are available.
+ *
+ * Note that functions mapped by _mesa_init_remap_table() are
+ * excluded.
+ */
+void
+_mesa_map_static_functions(void)
+{
+ /* Remap static functions which have alternative names and are in the ABI.
+ * This is to be on the safe side. glapi should have defined those names.
+ */
+ _mesa_map_function_array(MESA_alt_functions);
+}
+
+
+/**
+ * Initialize the remap table. This is called in one_time_init().
+ * The remap table needs to be initialized before calling the
+ * CALL/GET/SET macros defined in main/dispatch.h.
+ */
+static void
+_mesa_do_init_remap_table(const char *pool,
+ int size,
+ const struct gl_function_pool_remap *remap)
+{
+ static GLboolean initialized = GL_FALSE;
+ GLint i;
+
+ if (initialized)
+ return;
+ initialized = GL_TRUE;
+
+ /* initialize the remap table */
+ for (i = 0; i < size; i++) {
+ GLint offset;
+ const char *spec;
+
+ /* sanity check */
+ ASSERT(i == remap[i].remap_index);
+ spec = _mesa_function_pool + remap[i].pool_index;
+
+ offset = _mesa_map_function_spec(spec);
+ /* store the dispatch offset in the remap table */
+ driDispatchRemapTable[i] = offset;
+ if (offset < 0)
+ _mesa_warning(NULL, "failed to remap index %d", i);
+ }
+}
+
+
+void
+_mesa_init_remap_table(void)
+{
+ _mesa_do_init_remap_table(_mesa_function_pool,
+ driDispatchRemapTable_size,
+ MESA_remap_table_functions);
+}
+
+
+#endif /* FEATURE_remap_table */
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