X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fbufferobj.c;h=4c77397d9dc83c63a09e52b75a84a75e9eb692ca;hb=bf8ad170c5af58fe9f49b3ce0f92c4eda9e5d845;hp=dbaba2975e366531946a1d9cc74f7e052876c871;hpb=d6a9f5b3da7ce43a7b4ee068902dfd0d35c7bfa8;p=mesa.git diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index dbaba2975e3..4c77397d9dc 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -39,6 +39,8 @@ #include "context.h" #include "bufferobj.h" #include "fbobject.h" +#include "mfeatures.h" +#include "mtypes.h" #include "texobj.h" @@ -47,13 +49,20 @@ /*#define BOUNDS_CHECK*/ -#ifdef FEATURE_OES_mapbuffer +#if FEATURE_OES_mapbuffer #define DEFAULT_ACCESS GL_MAP_WRITE_BIT #else #define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT) #endif +/** + * Used as a placeholder for buffer objects between glGenBuffers() and + * glBindBuffer() so that glIsBuffer() can work correctly. + */ +static struct gl_buffer_object DummyBufferObject; + + /** * Return pointer to address of a buffer object target. * \param ctx the GL context @@ -61,8 +70,8 @@ * \return pointer to pointer to the buffer object bound to \c target in the * specified context or \c NULL if \c target is invalid. */ -static INLINE struct gl_buffer_object ** -get_buffer_target(GLcontext *ctx, GLenum target) +static inline struct gl_buffer_object ** +get_buffer_target(struct gl_context *ctx, GLenum target) { switch (target) { case GL_ARRAY_BUFFER_ARB: @@ -74,13 +83,19 @@ get_buffer_target(GLcontext *ctx, GLenum target) case GL_PIXEL_UNPACK_BUFFER_EXT: return &ctx->Unpack.BufferObj; case GL_COPY_READ_BUFFER: - if (ctx->Extensions.ARB_copy_buffer) { - return &ctx->CopyReadBuffer; + return &ctx->CopyReadBuffer; + case GL_COPY_WRITE_BUFFER: + return &ctx->CopyWriteBuffer; +#if FEATURE_EXT_transform_feedback + case GL_TRANSFORM_FEEDBACK_BUFFER: + if (ctx->Extensions.EXT_transform_feedback) { + return &ctx->TransformFeedback.CurrentBuffer; } break; - case GL_COPY_WRITE_BUFFER: - if (ctx->Extensions.ARB_copy_buffer) { - return &ctx->CopyWriteBuffer; +#endif + case GL_TEXTURE_BUFFER: + if (ctx->Extensions.ARB_texture_buffer_object) { + return &ctx->Texture.BufferObject; } break; default: @@ -97,8 +112,8 @@ get_buffer_target(GLcontext *ctx, GLenum target) * \return pointer to the buffer object bound to \c target in the * specified context or \c NULL if \c target is invalid. */ -static INLINE struct gl_buffer_object * -get_buffer(GLcontext *ctx, GLenum target) +static inline struct gl_buffer_object * +get_buffer(struct gl_context *ctx, GLenum target) { struct gl_buffer_object **bufObj = get_buffer_target(ctx, target); if (bufObj) @@ -142,7 +157,7 @@ simplified_access_mode(GLbitfield access) * \sa glBufferSubDataARB, glGetBufferSubDataARB */ static struct gl_buffer_object * -buffer_object_subdata_range_good( GLcontext * ctx, GLenum target, +buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, GLintptrARB offset, GLsizeiptrARB size, const char *caller ) { @@ -188,7 +203,7 @@ buffer_object_subdata_range_good( GLcontext * ctx, GLenum target, * Default callback for the \c dd_function_table::NewBufferObject() hook. */ static struct gl_buffer_object * -_mesa_new_buffer_object( GLcontext *ctx, GLuint name, GLenum target ) +_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target ) { struct gl_buffer_object *obj; @@ -206,7 +221,8 @@ _mesa_new_buffer_object( GLcontext *ctx, GLuint name, GLenum target ) * Default callback for the \c dd_function_table::DeleteBuffer() hook. */ static void -_mesa_delete_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj ) +_mesa_delete_buffer_object(struct gl_context *ctx, + struct gl_buffer_object *bufObj) { (void) ctx; @@ -225,15 +241,14 @@ _mesa_delete_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj ) /** * Set ptr to bufObj w/ reference counting. + * This is normally only called from the _mesa_reference_buffer_object() macro + * when there's a real pointer change. */ void -_mesa_reference_buffer_object(GLcontext *ctx, - struct gl_buffer_object **ptr, - struct gl_buffer_object *bufObj) +_mesa_reference_buffer_object_(struct gl_context *ctx, + struct gl_buffer_object **ptr, + struct gl_buffer_object *bufObj) { - if (*ptr == bufObj) - return; - if (*ptr) { /* Unreference the old buffer */ GLboolean deleteFlag = GL_FALSE; @@ -327,7 +342,7 @@ _mesa_initialize_buffer_object( struct gl_buffer_object *obj, * \sa glBufferDataARB, dd_function_table::BufferData. */ static GLboolean -_mesa_buffer_data( GLcontext *ctx, GLenum target, GLsizeiptrARB size, +_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size, const GLvoid * data, GLenum usage, struct gl_buffer_object * bufObj ) { @@ -371,11 +386,11 @@ _mesa_buffer_data( GLcontext *ctx, GLenum target, GLsizeiptrARB size, * \sa glBufferSubDataARB, dd_function_table::BufferSubData. */ static void -_mesa_buffer_subdata( GLcontext *ctx, GLenum target, GLintptrARB offset, +_mesa_buffer_subdata( struct gl_context *ctx, GLintptrARB offset, GLsizeiptrARB size, const GLvoid * data, struct gl_buffer_object * bufObj ) { - (void) ctx; (void) target; + (void) ctx; /* this should have been caught in _mesa_BufferSubData() */ ASSERT(size + offset <= bufObj->Size); @@ -404,11 +419,11 @@ _mesa_buffer_subdata( GLcontext *ctx, GLenum target, GLintptrARB offset, * \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData. */ static void -_mesa_buffer_get_subdata( GLcontext *ctx, GLenum target, GLintptrARB offset, +_mesa_buffer_get_subdata( struct gl_context *ctx, GLintptrARB offset, GLsizeiptrARB size, GLvoid * data, struct gl_buffer_object * bufObj ) { - (void) ctx; (void) target; + (void) ctx; if (bufObj->Data && ((GLsizeiptrARB) (size + offset) <= bufObj->Size)) { memcpy( data, (GLubyte *) bufObj->Data + offset, size ); @@ -416,50 +431,16 @@ _mesa_buffer_get_subdata( GLcontext *ctx, GLenum target, GLintptrARB offset, } -/** - * Default callback for \c dd_function_tabel::MapBuffer(). - * - * The function parameters will have been already tested for errors. - * - * \param ctx GL context. - * \param target Buffer object target on which to operate. - * \param access Information about how the buffer will be accessed. - * \param bufObj Object to be mapped. - * \return A pointer to the object's internal data store that can be accessed - * by the processor - * - * \sa glMapBufferARB, dd_function_table::MapBuffer - */ -static void * -_mesa_buffer_map( GLcontext *ctx, GLenum target, GLenum access, - struct gl_buffer_object *bufObj ) -{ - (void) ctx; - (void) target; - (void) access; - /* Just return a direct pointer to the data */ - if (_mesa_bufferobj_mapped(bufObj)) { - /* already mapped! */ - return NULL; - } - bufObj->Pointer = bufObj->Data; - bufObj->Length = bufObj->Size; - bufObj->Offset = 0; - return bufObj->Pointer; -} - - /** * Default fallback for \c dd_function_table::MapBufferRange(). * Called via glMapBufferRange(). */ static void * -_mesa_buffer_map_range( GLcontext *ctx, GLenum target, GLintptr offset, +_mesa_buffer_map_range( struct gl_context *ctx, GLintptr offset, GLsizeiptr length, GLbitfield access, struct gl_buffer_object *bufObj ) { (void) ctx; - (void) target; assert(!_mesa_bufferobj_mapped(bufObj)); /* Just return a direct pointer to the data */ bufObj->Pointer = bufObj->Data + offset; @@ -475,12 +456,11 @@ _mesa_buffer_map_range( GLcontext *ctx, GLenum target, GLintptr offset, * Called via glFlushMappedBufferRange(). */ static void -_mesa_buffer_flush_mapped_range( GLcontext *ctx, GLenum target, +_mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLintptr offset, GLsizeiptr length, struct gl_buffer_object *obj ) { (void) ctx; - (void) target; (void) offset; (void) length; (void) obj; @@ -496,11 +476,9 @@ _mesa_buffer_flush_mapped_range( GLcontext *ctx, GLenum target, * \sa glUnmapBufferARB, dd_function_table::UnmapBuffer */ static GLboolean -_mesa_buffer_unmap( GLcontext *ctx, GLenum target, - struct gl_buffer_object *bufObj ) +_mesa_buffer_unmap( struct gl_context *ctx, struct gl_buffer_object *bufObj ) { (void) ctx; - (void) target; /* XXX we might assert here that bufObj->Pointer is non-null */ bufObj->Pointer = NULL; bufObj->Length = 0; @@ -515,7 +493,7 @@ _mesa_buffer_unmap( GLcontext *ctx, GLenum target, * Called via glCopyBuffserSubData(). */ static void -_mesa_copy_buffer_subdata(GLcontext *ctx, +_mesa_copy_buffer_subdata(struct gl_context *ctx, struct gl_buffer_object *src, struct gl_buffer_object *dst, GLintptr readOffset, GLintptr writeOffset, @@ -527,16 +505,16 @@ _mesa_copy_buffer_subdata(GLcontext *ctx, assert(!_mesa_bufferobj_mapped(src)); assert(!_mesa_bufferobj_mapped(dst)); - srcPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_READ_BUFFER, - GL_READ_ONLY, src); - dstPtr = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_COPY_WRITE_BUFFER, - GL_WRITE_ONLY, dst); + srcPtr = (GLubyte *) ctx->Driver.MapBufferRange(ctx, 0, src->Size, + GL_MAP_READ_BIT, src); + dstPtr = (GLubyte *) ctx->Driver.MapBufferRange(ctx, 0, dst->Size, + GL_MAP_WRITE_BIT, dst); if (srcPtr && dstPtr) memcpy(dstPtr + writeOffset, srcPtr + readOffset, size); - ctx->Driver.UnmapBuffer(ctx, GL_COPY_READ_BUFFER, src); - ctx->Driver.UnmapBuffer(ctx, GL_COPY_WRITE_BUFFER, dst); + ctx->Driver.UnmapBuffer(ctx, src); + ctx->Driver.UnmapBuffer(ctx, dst); } @@ -545,8 +523,12 @@ _mesa_copy_buffer_subdata(GLcontext *ctx, * Initialize the state associated with buffer objects */ void -_mesa_init_buffer_objects( GLcontext *ctx ) +_mesa_init_buffer_objects( struct gl_context *ctx ) { + memset(&DummyBufferObject, 0, sizeof(DummyBufferObject)); + _glthread_INIT_MUTEX(DummyBufferObject.Mutex); + DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */ + _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, ctx->Shared->NullBufferObj); _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, @@ -560,7 +542,7 @@ _mesa_init_buffer_objects( GLcontext *ctx ) void -_mesa_free_buffer_objects( GLcontext *ctx ) +_mesa_free_buffer_objects( struct gl_context *ctx ) { _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL); _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL); @@ -575,7 +557,7 @@ _mesa_free_buffer_objects( GLcontext *ctx ) * Called by glBindBuffer() and other functions. */ static void -bind_buffer_object(GLcontext *ctx, GLenum target, GLuint buffer) +bind_buffer_object(struct gl_context *ctx, GLenum target, GLuint buffer) { struct gl_buffer_object *oldBufObj; struct gl_buffer_object *newBufObj = NULL; @@ -583,13 +565,13 @@ bind_buffer_object(GLcontext *ctx, GLenum target, GLuint buffer) bindTarget = get_buffer_target(ctx, target); if (!bindTarget) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)"); + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferARB(target 0x%x)", target); return; } /* Get pointer to old buffer object (to be unbound) */ oldBufObj = *bindTarget; - if (oldBufObj && oldBufObj->Name == buffer) + if (oldBufObj && oldBufObj->Name == buffer && !oldBufObj->DeletePending) return; /* rebinding the same buffer object- no change */ /* @@ -604,8 +586,10 @@ bind_buffer_object(GLcontext *ctx, GLenum target, GLuint buffer) else { /* non-default buffer object */ newBufObj = _mesa_lookup_bufferobj(ctx, buffer); - if (!newBufObj) { - /* if this is a new buffer object id, allocate a buffer object now */ + if (!newBufObj || newBufObj == &DummyBufferObject) { + /* If this is a new buffer object id, or one which was generated but + * never used before, allocate a buffer object now. + */ ASSERT(ctx->Driver.NewBufferObject); newBufObj = ctx->Driver.NewBufferObject(ctx, buffer, target); if (!newBufObj) { @@ -631,7 +615,7 @@ bind_buffer_object(GLcontext *ctx, GLenum target, GLuint buffer) * shared state. */ void -_mesa_update_default_objects_buffer_objects(GLcontext *ctx) +_mesa_update_default_objects_buffer_objects(struct gl_context *ctx) { /* Bind the NullBufferObj to remove references to those * in the shared context hash table. @@ -643,255 +627,13 @@ _mesa_update_default_objects_buffer_objects(GLcontext *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(GLcontext *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(GLcontext *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(GLcontext *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(GLcontext *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(GLcontext *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(GLcontext *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. * Always return NULL for ID 0. */ struct gl_buffer_object * -_mesa_lookup_bufferobj(GLcontext *ctx, GLuint buffer) +_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer) { if (buffer == 0) return NULL; @@ -908,7 +650,7 @@ _mesa_lookup_bufferobj(GLcontext *ctx, GLuint buffer) * unbound from all arrays in the current context. */ static void -unbind(GLcontext *ctx, +unbind(struct gl_context *ctx, struct gl_buffer_object **ptr, struct gl_buffer_object *obj) { @@ -932,7 +674,6 @@ _mesa_init_buffer_object_functions(struct dd_function_table *driver) driver->BufferData = _mesa_buffer_data; driver->BufferSubData = _mesa_buffer_subdata; driver->GetBufferSubData = _mesa_buffer_get_subdata; - driver->MapBuffer = _mesa_buffer_map; driver->UnmapBuffer = _mesa_buffer_unmap; /* GL_ARB_map_buffer_range */ @@ -955,6 +696,10 @@ _mesa_BindBufferARB(GLenum target, GLuint buffer) GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glBindBuffer(%s, %u)\n", + _mesa_lookup_enum_by_nr(target), buffer); + bind_buffer_object(ctx, target, buffer); } @@ -971,6 +716,7 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids) GET_CURRENT_CONTEXT(ctx); GLsizei i; ASSERT_OUTSIDE_BEGIN_END(ctx); + FLUSH_VERTICES(ctx, 0); if (n < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)"); @@ -985,11 +731,11 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids) struct gl_array_object *arrayObj = ctx->Array.ArrayObj; GLuint j; - ASSERT(bufObj->Name == ids[i]); + ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject); if (_mesa_bufferobj_mapped(bufObj)) { /* if mapped, unmap it now */ - ctx->Driver.UnmapBuffer(ctx, 0, bufObj); + ctx->Driver.UnmapBuffer(ctx, bufObj); bufObj->AccessFlags = DEFAULT_ACCESS; bufObj->Pointer = NULL; } @@ -1026,7 +772,18 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids) } /* The ID is immediately freed for re-use */ - _mesa_HashRemove(ctx->Shared->BufferObjects, bufObj->Name); + _mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]); + /* Make sure we do not run into the classic ABA problem on bind. + * We don't want to allow re-binding a buffer object that's been + * "deleted" by glDeleteBuffers(). + * + * The explicit rebinding to the default object in the current context + * prevents the above in the current context, but another context + * sharing the same objects might suffer from this problem. + * The alternative would be to do the hash lookup in any case on bind + * which would introduce more runtime overhead than this. + */ + bufObj->DeletePending = GL_TRUE; _mesa_reference_buffer_object(ctx, &bufObj, NULL); } } @@ -1049,6 +806,9 @@ _mesa_GenBuffersARB(GLsizei n, GLuint *buffer) GLint i; ASSERT_OUTSIDE_BEGIN_END(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glGenBuffers(%d)\n", n); + if (n < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glGenBuffersARB"); return; @@ -1065,18 +825,10 @@ _mesa_GenBuffersARB(GLsizei n, GLuint *buffer) first = _mesa_HashFindFreeKeyBlock(ctx->Shared->BufferObjects, n); - /* Allocate new, empty buffer objects and return identifiers */ + /* Insert the ID and pointer to dummy buffer object into hash table */ for (i = 0; i < n; i++) { - struct gl_buffer_object *bufObj; - GLuint name = first + i; - GLenum target = 0; - bufObj = ctx->Driver.NewBufferObject( ctx, name, target ); - if (!bufObj) { - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenBuffersARB"); - return; - } - _mesa_HashInsert(ctx->Shared->BufferObjects, first + i, bufObj); + _mesa_HashInsert(ctx->Shared->BufferObjects, first + i, + &DummyBufferObject); buffer[i] = first + i; } @@ -1102,7 +854,7 @@ _mesa_IsBufferARB(GLuint id) bufObj = _mesa_lookup_bufferobj(ctx, id); _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - return bufObj ? GL_TRUE : GL_FALSE; + return bufObj && bufObj != &DummyBufferObject; } @@ -1114,6 +866,12 @@ _mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, struct gl_buffer_object *bufObj; ASSERT_OUTSIDE_BEGIN_END(ctx); + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n", + _mesa_lookup_enum_by_nr(target), + (long int) size, data, + _mesa_lookup_enum_by_nr(usage)); + if (size < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)"); return; @@ -1148,7 +906,7 @@ _mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, if (_mesa_bufferobj_mapped(bufObj)) { /* Unmap the existing buffer. We'll replace it now. Not an error. */ - ctx->Driver.UnmapBuffer(ctx, target, bufObj); + ctx->Driver.UnmapBuffer(ctx, bufObj); bufObj->AccessFlags = DEFAULT_ACCESS; ASSERT(bufObj->Pointer == NULL); } @@ -1188,10 +946,13 @@ _mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, return; } + if (size == 0) + return; + bufObj->Written = GL_TRUE; ASSERT(ctx->Driver.BufferSubData); - ctx->Driver.BufferSubData( ctx, target, offset, size, data, bufObj ); + ctx->Driver.BufferSubData( ctx, offset, size, data, bufObj ); } @@ -1211,7 +972,7 @@ _mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, } ASSERT(ctx->Driver.GetBufferSubData); - ctx->Driver.GetBufferSubData( ctx, target, offset, size, data, bufObj ); + ctx->Driver.GetBufferSubData( ctx, offset, size, data, bufObj ); } @@ -1254,8 +1015,14 @@ _mesa_MapBufferARB(GLenum target, GLenum access) return NULL; } - ASSERT(ctx->Driver.MapBuffer); - map = ctx->Driver.MapBuffer( ctx, target, access, bufObj ); + if (!bufObj->Size) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, + "glMapBuffer(buffer size = 0)"); + return NULL; + } + + ASSERT(ctx->Driver.MapBufferRange); + map = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size, accessFlags, bufObj); if (!map) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); return NULL; @@ -1358,7 +1125,7 @@ _mesa_UnmapBufferARB(GLenum target) } #endif - status = ctx->Driver.UnmapBuffer( ctx, target, bufObj ); + status = ctx->Driver.UnmapBuffer( ctx, bufObj ); bufObj->AccessFlags = DEFAULT_ACCESS; ASSERT(bufObj->Pointer == NULL); ASSERT(bufObj->Offset == 0); @@ -1475,7 +1242,6 @@ _mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params) return; default: ; /* fall-through */ - return; } invalid_pname: @@ -1547,27 +1313,27 @@ _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget, if (readOffset < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(readOffset = %d)", readOffset); + "glCopyBuffserSubData(readOffset = %d)", (int) readOffset); return; } if (writeOffset < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyBuffserSubData(writeOffset = %d)", writeOffset); + "glCopyBuffserSubData(writeOffset = %d)", (int) writeOffset); return; } if (readOffset + size > src->Size) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyBuffserSubData(readOffset + size = %d)", - readOffset, size); + (int) (readOffset + size)); return; } if (writeOffset + size > dst->Size) { _mesa_error(ctx, GL_INVALID_VALUE, "glCopyBuffserSubData(writeOffset + size = %d)", - writeOffset, size); + (int) (writeOffset + size)); return; } @@ -1611,13 +1377,24 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, if (offset < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset = %ld)", offset); + "glMapBufferRange(offset = %ld)", (long)offset); return NULL; } if (length < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(length = %ld)", length); + "glMapBufferRange(length = %ld)", (long)length); + return NULL; + } + + if (access & ~(GL_MAP_READ_BIT | + GL_MAP_WRITE_BIT | + GL_MAP_INVALIDATE_RANGE_BIT | + GL_MAP_INVALIDATE_BUFFER_BIT | + GL_MAP_FLUSH_EXPLICIT_BIT | + GL_MAP_UNSYNCHRONIZED_BIT)) { + /* generate an error if any undefind bit is set */ + _mesa_error(ctx, GL_INVALID_VALUE, "glMapBufferRange(access)"); return NULL; } @@ -1627,14 +1404,13 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, return NULL; } - if (access & GL_MAP_READ_BIT) { - if ((access & GL_MAP_INVALIDATE_RANGE_BIT) || - (access & GL_MAP_INVALIDATE_BUFFER_BIT) || - (access & GL_MAP_UNSYNCHRONIZED_BIT)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glMapBufferRange(invalid access flags)"); - return NULL; - } + if ((access & GL_MAP_READ_BIT) && + (access & (GL_MAP_INVALIDATE_RANGE_BIT | + GL_MAP_INVALIDATE_BUFFER_BIT | + GL_MAP_UNSYNCHRONIZED_BIT))) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glMapBufferRange(invalid access flags)"); + return NULL; } if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) && @@ -1662,10 +1438,25 @@ _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, "glMapBufferRange(buffer already mapped)"); return NULL; } - + + if (!bufObj->Size) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, + "glMapBufferRange(buffer size = 0)"); + return NULL; + } + + /* Mapping zero bytes should return a non-null pointer. */ + if (!length) { + static long dummy = 0; + bufObj->Pointer = &dummy; + bufObj->Length = length; + bufObj->Offset = offset; + bufObj->AccessFlags = access; + return bufObj->Pointer; + } + ASSERT(ctx->Driver.MapBufferRange); - map = ctx->Driver.MapBufferRange(ctx, target, offset, length, - access, bufObj); + map = ctx->Driver.MapBufferRange(ctx, offset, length, access, bufObj); if (!map) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)"); } @@ -1702,13 +1493,13 @@ _mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length) if (offset < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset = %ld)", offset); + "glMapBufferRange(offset = %ld)", (long)offset); return; } if (length < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(length = %ld)", length); + "glMapBufferRange(length = %ld)", (long)length); return; } @@ -1740,21 +1531,21 @@ _mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length) if (offset + length > bufObj->Length) { _mesa_error(ctx, GL_INVALID_VALUE, - "glMapBufferRange(offset %ld + length %ld > mapped length %ld)", - offset, length, bufObj->Length); + "glMapBufferRange(offset %ld + length %ld > mapped length %ld)", + (long)offset, (long)length, (long)bufObj->Length); return; } ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT); if (ctx->Driver.FlushMappedBufferRange) - ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj); + ctx->Driver.FlushMappedBufferRange(ctx, offset, length, bufObj); } #if FEATURE_APPLE_object_purgeable static GLenum -_mesa_BufferObjectPurgeable(GLcontext *ctx, GLuint name, GLenum option) +buffer_object_purgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_buffer_object *bufObj; GLenum retval; @@ -1787,7 +1578,7 @@ _mesa_BufferObjectPurgeable(GLcontext *ctx, GLuint name, GLenum option) static GLenum -_mesa_RenderObjectPurgeable(GLcontext *ctx, GLuint name, GLenum option) +renderbuffer_purgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_renderbuffer *bufObj; GLenum retval; @@ -1816,7 +1607,7 @@ _mesa_RenderObjectPurgeable(GLcontext *ctx, GLuint name, GLenum option) static GLenum -_mesa_TextureObjectPurgeable(GLcontext *ctx, GLuint name, GLenum option) +texture_object_purgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_texture_object *bufObj; GLenum retval; @@ -1872,13 +1663,13 @@ _mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) switch (objectType) { case GL_TEXTURE: - retval = _mesa_TextureObjectPurgeable (ctx, name, option); + retval = texture_object_purgeable(ctx, name, option); break; case GL_RENDERBUFFER_EXT: - retval = _mesa_RenderObjectPurgeable (ctx, name, option); + retval = renderbuffer_purgeable(ctx, name, option); break; case GL_BUFFER_OBJECT_APPLE: - retval = _mesa_BufferObjectPurgeable (ctx, name, option); + retval = buffer_object_purgeable(ctx, name, option); break; default: _mesa_error(ctx, GL_INVALID_ENUM, @@ -1897,7 +1688,7 @@ _mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) static GLenum -_mesa_BufferObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) +buffer_object_unpurgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_buffer_object *bufObj; GLenum retval; @@ -1918,7 +1709,7 @@ _mesa_BufferObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) bufObj->Purgeable = GL_FALSE; - retval = GL_RETAINED_APPLE; + retval = option; if (ctx->Driver.BufferObjectUnpurgeable) retval = ctx->Driver.BufferObjectUnpurgeable(ctx, bufObj, option); @@ -1927,7 +1718,7 @@ _mesa_BufferObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) static GLenum -_mesa_RenderObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) +renderbuffer_unpurgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_renderbuffer *bufObj; GLenum retval; @@ -1948,16 +1739,16 @@ _mesa_RenderObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) bufObj->Purgeable = GL_FALSE; - retval = GL_RETAINED_APPLE; + retval = option; if (ctx->Driver.RenderObjectUnpurgeable) retval = ctx->Driver.RenderObjectUnpurgeable(ctx, bufObj, option); - return option; + return retval; } static GLenum -_mesa_TextureObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) +texture_object_unpurgeable(struct gl_context *ctx, GLuint name, GLenum option) { struct gl_texture_object *bufObj; GLenum retval; @@ -1978,7 +1769,7 @@ _mesa_TextureObjectUnpurgeable(GLcontext *ctx, GLuint name, GLenum option) bufObj->Purgeable = GL_FALSE; - retval = GL_RETAINED_APPLE; + retval = option; if (ctx->Driver.TextureObjectUnpurgeable) retval = ctx->Driver.TextureObjectUnpurgeable(ctx, bufObj, option); @@ -2012,11 +1803,11 @@ _mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) switch (objectType) { case GL_BUFFER_OBJECT_APPLE: - return _mesa_BufferObjectUnpurgeable(ctx, name, option); + return buffer_object_unpurgeable(ctx, name, option); case GL_TEXTURE: - return _mesa_TextureObjectUnpurgeable(ctx, name, option); + return texture_object_unpurgeable(ctx, name, option); case GL_RENDERBUFFER_EXT: - return _mesa_RenderObjectUnpurgeable(ctx, name, option); + return renderbuffer_unpurgeable(ctx, name, option); default: _mesa_error(ctx, GL_INVALID_ENUM, "glObjectUnpurgeable(name = 0x%x) invalid type: %d", @@ -2027,12 +1818,10 @@ _mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option) static void -_mesa_GetBufferObjectParameterivAPPLE(GLcontext *ctx, GLuint name, - GLenum pname, GLint* params) +get_buffer_object_parameteriv(struct gl_context *ctx, GLuint name, + GLenum pname, GLint *params) { - struct gl_buffer_object *bufObj; - - bufObj = _mesa_lookup_bufferobj(ctx, name); + struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, name); if (!bufObj) { _mesa_error(ctx, GL_INVALID_VALUE, "glGetObjectParameteriv(name = 0x%x) invalid object", name); @@ -2053,13 +1842,11 @@ _mesa_GetBufferObjectParameterivAPPLE(GLcontext *ctx, GLuint name, static void -_mesa_GetRenderObjectParameterivAPPLE(GLcontext *ctx, GLuint name, - GLenum pname, GLint* params) +get_renderbuffer_parameteriv(struct gl_context *ctx, GLuint name, + GLenum pname, GLint *params) { - struct gl_renderbuffer *bufObj; - - bufObj = _mesa_lookup_renderbuffer(ctx, name); - if (!bufObj) { + struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, name); + if (!rb) { _mesa_error(ctx, GL_INVALID_VALUE, "glObjectUnpurgeable(name = 0x%x)", name); return; @@ -2067,7 +1854,7 @@ _mesa_GetRenderObjectParameterivAPPLE(GLcontext *ctx, GLuint name, switch (pname) { case GL_PURGEABLE_APPLE: - *params = bufObj->Purgeable; + *params = rb->Purgeable; break; default: _mesa_error(ctx, GL_INVALID_ENUM, @@ -2079,13 +1866,11 @@ _mesa_GetRenderObjectParameterivAPPLE(GLcontext *ctx, GLuint name, static void -_mesa_GetTextureObjectParameterivAPPLE(GLcontext *ctx, GLuint name, - GLenum pname, GLint* params) +get_texture_object_parameteriv(struct gl_context *ctx, GLuint name, + GLenum pname, GLint *params) { - struct gl_texture_object *bufObj; - - bufObj = _mesa_lookup_texture(ctx, name); - if (!bufObj) { + struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, name); + if (!texObj) { _mesa_error(ctx, GL_INVALID_VALUE, "glObjectUnpurgeable(name = 0x%x)", name); return; @@ -2093,7 +1878,7 @@ _mesa_GetTextureObjectParameterivAPPLE(GLcontext *ctx, GLuint name, switch (pname) { case GL_PURGEABLE_APPLE: - *params = bufObj->Purgeable; + *params = texObj->Purgeable; break; default: _mesa_error(ctx, GL_INVALID_ENUM, @@ -2106,7 +1891,7 @@ _mesa_GetTextureObjectParameterivAPPLE(GLcontext *ctx, GLuint name, void GLAPIENTRY _mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, - GLint* params) + GLint *params) { GET_CURRENT_CONTEXT(ctx); @@ -2118,13 +1903,13 @@ _mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, switch (objectType) { case GL_TEXTURE: - _mesa_GetTextureObjectParameterivAPPLE (ctx, name, pname, params); + get_texture_object_parameteriv(ctx, name, pname, params); break; case GL_BUFFER_OBJECT_APPLE: - _mesa_GetBufferObjectParameterivAPPLE (ctx, name, pname, params); + get_buffer_object_parameteriv(ctx, name, pname, params); break; case GL_RENDERBUFFER_EXT: - _mesa_GetRenderObjectParameterivAPPLE (ctx, name, pname, params); + get_renderbuffer_parameteriv(ctx, name, pname, params); break; default: _mesa_error(ctx, GL_INVALID_ENUM,