svn merge ^/branches/released .

1 files changed, 0 insertions, 242 deletions

diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c
index 2de4602b8..8b5899918 100644
--- a/mesalib/src/mesa/main/bufferobj.c
+++ b/mesalib/src/mesa/main/bufferobj.c
@@ -658,248 +658,6 @@ _mesa_update_default_objects_buffer_objects(struct gl_context *ctx)
 }

 

 

-/**

- * When we're about to read pixel data out of a PBO (via glDrawPixels,

- * glTexImage, etc) or write data into a PBO (via glReadPixels,

- * glGetTexImage, etc) we call this function to check that we're not

- * going to read out of bounds.

- *

- * XXX This would also be a convenient time to check that the PBO isn't

- * currently mapped.  Whoever calls this function should check for that.

- * Remember, we can't use a PBO when it's mapped!

- *

- * If we're not using a PBO, this is a no-op.

- *

- * \param width  width of image to read/write

- * \param height  height of image to read/write

- * \param depth  depth of image to read/write

- * \param format  format of image to read/write

- * \param type  datatype of image to read/write

- * \param ptr  the user-provided pointer/offset

- * \return GL_TRUE if the PBO access is OK, GL_FALSE if the access would

- *         go out of bounds.

- */

-GLboolean

-_mesa_validate_pbo_access(GLuint dimensions,

-                          const struct gl_pixelstore_attrib *pack,

-                          GLsizei width, GLsizei height, GLsizei depth,

-                          GLenum format, GLenum type, const GLvoid *ptr)

-{

-   GLvoid *start, *end;

-   const GLubyte *sizeAddr; /* buffer size, cast to a pointer */

-

-   if (!_mesa_is_bufferobj(pack->BufferObj))

-      return GL_TRUE;  /* no PBO, OK */

-

-   if (pack->BufferObj->Size == 0)

-      /* no buffer! */

-      return GL_FALSE;

-

-   /* get address of first pixel we'll read */

-   start = _mesa_image_address(dimensions, pack, ptr, width, height,

-                               format, type, 0, 0, 0);

-

-   /* get address just past the last pixel we'll read */

-   end =  _mesa_image_address(dimensions, pack, ptr, width, height,

-                              format, type, depth-1, height-1, width);

-

-

-   sizeAddr = ((const GLubyte *) 0) + pack->BufferObj->Size;

-

-   if ((const GLubyte *) start > sizeAddr) {

-      /* This will catch negative values / wrap-around */

-      return GL_FALSE;

-   }

-   if ((const GLubyte *) end > sizeAddr) {

-      /* Image read goes beyond end of buffer */

-      return GL_FALSE;

-   }

-

-   /* OK! */

-   return GL_TRUE;

-}

-

-

-/**

- * For commands that read from a PBO (glDrawPixels, glTexImage,

- * glPolygonStipple, etc), if we're reading from a PBO, map it read-only

- * and return the pointer into the PBO.  If we're not reading from a

- * PBO, return \p src as-is.

- * If non-null return, must call _mesa_unmap_pbo_source() when done.

- *

- * \return NULL if error, else pointer to start of data

- */

-const GLvoid *

-_mesa_map_pbo_source(struct gl_context *ctx,

-                     const struct gl_pixelstore_attrib *unpack,

-                     const GLvoid *src)

-{

-   const GLubyte *buf;

-

-   if (_mesa_is_bufferobj(unpack->BufferObj)) {

-      /* unpack from PBO */

-      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,

-                                              GL_READ_ONLY_ARB,

-                                              unpack->BufferObj);

-      if (!buf)

-         return NULL;

-

-      buf = ADD_POINTERS(buf, src);

-   }

-   else {

-      /* unpack from normal memory */

-      buf = src;

-   }

-

-   return buf;

-}

-

-

-/**

- * Combine PBO-read validation and mapping.

- * If any GL errors are detected, they'll be recorded and NULL returned.

- * \sa _mesa_validate_pbo_access

- * \sa _mesa_map_pbo_source

- * A call to this function should have a matching call to

- * _mesa_unmap_pbo_source().

- */

-const GLvoid *

-_mesa_map_validate_pbo_source(struct gl_context *ctx,

-                              GLuint dimensions,

-                              const struct gl_pixelstore_attrib *unpack,

-                              GLsizei width, GLsizei height, GLsizei depth,

-                              GLenum format, GLenum type, const GLvoid *ptr,

-                              const char *where)

-{

-   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);

-

-   if (!_mesa_is_bufferobj(unpack->BufferObj)) {

-      /* non-PBO access: no validation to be done */

-      return ptr;

-   }

-

-   if (!_mesa_validate_pbo_access(dimensions, unpack,

-                                  width, height, depth, format, type, ptr)) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "%s(out of bounds PBO access)", where);

-      return NULL;

-   }

-

-   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {

-      /* buffer is already mapped - that's an error */

-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);

-      return NULL;

-   }

-

-   ptr = _mesa_map_pbo_source(ctx, unpack, ptr);

-   return ptr;

-}

-

-

-/**

- * Counterpart to _mesa_map_pbo_source()

- */

-void

-_mesa_unmap_pbo_source(struct gl_context *ctx,

-                       const struct gl_pixelstore_attrib *unpack)

-{

-   ASSERT(unpack != &ctx->Pack); /* catch pack/unpack mismatch */

-   if (_mesa_is_bufferobj(unpack->BufferObj)) {

-      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,

-                              unpack->BufferObj);

-   }

-}

-

-

-/**

- * For commands that write to a PBO (glReadPixels, glGetColorTable, etc),

- * if we're writing to a PBO, map it write-only and return the pointer

- * into the PBO.  If we're not writing to a PBO, return \p dst as-is.

- * If non-null return, must call _mesa_unmap_pbo_dest() when done.

- *

- * \return NULL if error, else pointer to start of data

- */

-void *

-_mesa_map_pbo_dest(struct gl_context *ctx,

-                   const struct gl_pixelstore_attrib *pack,

-                   GLvoid *dest)

-{

-   void *buf;

-

-   if (_mesa_is_bufferobj(pack->BufferObj)) {

-      /* pack into PBO */

-      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,

-                                              GL_WRITE_ONLY_ARB,

-                                              pack->BufferObj);

-      if (!buf)

-         return NULL;

-

-      buf = ADD_POINTERS(buf, dest);

-   }

-   else {

-      /* pack to normal memory */

-      buf = dest;

-   }

-

-   return buf;

-}

-

-

-/**

- * Combine PBO-write validation and mapping.

- * If any GL errors are detected, they'll be recorded and NULL returned.

- * \sa _mesa_validate_pbo_access

- * \sa _mesa_map_pbo_dest

- * A call to this function should have a matching call to

- * _mesa_unmap_pbo_dest().

- */

-GLvoid *

-_mesa_map_validate_pbo_dest(struct gl_context *ctx,

-                            GLuint dimensions,

-                            const struct gl_pixelstore_attrib *unpack,

-                            GLsizei width, GLsizei height, GLsizei depth,

-                            GLenum format, GLenum type, GLvoid *ptr,

-                            const char *where)

-{

-   ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);

-

-   if (!_mesa_is_bufferobj(unpack->BufferObj)) {

-      /* non-PBO access: no validation to be done */

-      return ptr;

-   }

-

-   if (!_mesa_validate_pbo_access(dimensions, unpack,

-                                  width, height, depth, format, type, ptr)) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "%s(out of bounds PBO access)", where);

-      return NULL;

-   }

-

-   if (_mesa_bufferobj_mapped(unpack->BufferObj)) {

-      /* buffer is already mapped - that's an error */

-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);

-      return NULL;

-   }

-

-   ptr = _mesa_map_pbo_dest(ctx, unpack, ptr);

-   return ptr;

-}

-

-

-/**

- * Counterpart to _mesa_map_pbo_dest()

- */

-void

-_mesa_unmap_pbo_dest(struct gl_context *ctx,

-                     const struct gl_pixelstore_attrib *pack)

-{

-   ASSERT(pack != &ctx->Unpack); /* catch pack/unpack mismatch */

-   if (_mesa_is_bufferobj(pack->BufferObj)) {

-      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, pack->BufferObj);

-   }

-}

-

-

 

 /**

  * Return the gl_buffer_object for the given ID.