X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmesa%2Fmain%2Farrayobj.c;h=0fa5f0de55188b5d98107a3d9b804352d56990a3;hb=47173cf67f0ed55012b0820397f6d620d8ad4473;hp=b04095fd16b6fb9514bbe2289103a1ff12a11623;hpb=ee4c921b65fb76998711f3c40330505cbc49a0e0;p=mesa.git diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c index b04095fd16b..0fa5f0de551 100644 --- a/src/mesa/main/arrayobj.c +++ b/src/mesa/main/arrayobj.c @@ -68,6 +68,32 @@ lookup_arrayobj(GLcontext *ctx, GLuint id) } +/** + * For all the vertex arrays in the array object, unbind any pointers + * to any buffer objects (VBOs). + * This is done just prior to array object destruction. + */ +static void +unbind_array_object_vbos(GLcontext *ctx, struct gl_array_object *obj) +{ + GLuint i; + + _mesa_reference_buffer_object(ctx, &obj->Vertex.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Normal.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Color.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->SecondaryColor.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->FogCoord.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Index.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->EdgeFlag.BufferObj, NULL); + + for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) + _mesa_reference_buffer_object(ctx, &obj->TexCoord[i].BufferObj, NULL); + + for (i = 0; i < VERT_ATTRIB_MAX; i++) + _mesa_reference_buffer_object(ctx, &obj->VertexAttrib[i].BufferObj,NULL); +} + + /** * Allocate and initialize a new vertex array object. * @@ -94,10 +120,70 @@ void _mesa_delete_array_object( GLcontext *ctx, struct gl_array_object *obj ) { (void) ctx; + unbind_array_object_vbos(ctx, obj); + _glthread_DESTROY_MUTEX(obj->Mutex); _mesa_free(obj); } +/** + * Set ptr to arrayObj w/ reference counting. + */ +void +_mesa_reference_array_object(GLcontext *ctx, + struct gl_array_object **ptr, + struct gl_array_object *arrayObj) +{ + if (*ptr == arrayObj) + return; + + if (*ptr) { + /* Unreference the old array object */ + GLboolean deleteFlag = GL_FALSE; + struct gl_array_object *oldObj = *ptr; + + _glthread_LOCK_MUTEX(oldObj->Mutex); + ASSERT(oldObj->RefCount > 0); + oldObj->RefCount--; +#if 0 + printf("ArrayObj %p %d DECR to %d\n", + (void *) oldObj, oldObj->Name, oldObj->RefCount); +#endif + deleteFlag = (oldObj->RefCount == 0); + _glthread_UNLOCK_MUTEX(oldObj->Mutex); + + if (deleteFlag) { + ASSERT(ctx->Driver.DeleteArrayObject); + ctx->Driver.DeleteArrayObject(ctx, oldObj); + } + + *ptr = NULL; + } + ASSERT(!*ptr); + + if (arrayObj) { + /* reference new array object */ + _glthread_LOCK_MUTEX(arrayObj->Mutex); + if (arrayObj->RefCount == 0) { + /* this array's being deleted (look just above) */ + /* Not sure this can every really happen. Warn if it does. */ + _mesa_problem(NULL, "referencing deleted array object"); + *ptr = NULL; + } + else { + arrayObj->RefCount++; +#if 0 + printf("ArrayObj %p %d INCR to %d\n", + (void *) arrayObj, arrayObj->Name, arrayObj->RefCount); +#endif + *ptr = arrayObj; + } + _glthread_UNLOCK_MUTEX(arrayObj->Mutex); + } +} + + + static void init_array(GLcontext *ctx, struct gl_client_array *array, GLint size, GLint type) @@ -129,6 +215,9 @@ _mesa_initialize_array_object( GLcontext *ctx, obj->Name = name; + _glthread_INIT_MUTEX(obj->Mutex); + obj->RefCount = 1; + /* Init the individual arrays */ init_array(ctx, &obj->Vertex, 4, GL_FLOAT); init_array(ctx, &obj->Normal, 3, GL_FLOAT); @@ -177,15 +266,6 @@ _mesa_remove_array_object( GLcontext *ctx, struct gl_array_object *obj ) } -static void -unbind_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj ) -{ - if (bufObj != ctx->Array.NullBufferObj) { - _mesa_reference_buffer_object(ctx, &bufObj, NULL); - } -} - - /**********************************************************************/ /* API Functions */ /**********************************************************************/ @@ -212,7 +292,7 @@ _mesa_BindVertexArrayAPPLE( GLuint id ) return; /* rebinding the same array object- no change */ /* - * Get pointer to new array object (newBufObj) + * Get pointer to new array object (newObj) */ if (id == 0) { /* The spec says there is no array object named 0, but we use @@ -226,7 +306,6 @@ _mesa_BindVertexArrayAPPLE( GLuint id ) if (!newObj) { /* If this is a new array object id, allocate an array object now. */ - newObj = (*ctx->Driver.NewArrayObject)(ctx, id); if (!newObj) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindVertexArrayAPPLE"); @@ -236,11 +315,9 @@ _mesa_BindVertexArrayAPPLE( GLuint id ) } } - ctx->NewState |= _NEW_ARRAY; ctx->Array.NewState |= _NEW_ARRAY_ALL; - ctx->Array.ArrayObj = newObj; - + _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, newObj); /* Pass BindVertexArray call to device driver */ if (ctx->Driver.BindArrayObject && newObj) @@ -274,7 +351,6 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids) if ( obj != NULL ) { ASSERT( obj->Name == ids[i] ); - /* If the array object is currently bound, the spec says "the binding * for that object reverts to zero and the default vertex array * becomes current." @@ -283,28 +359,13 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids) CALL_BindVertexArrayAPPLE( ctx->Exec, (0) ); } -#if FEATURE_ARB_vertex_buffer_object - /* Unbind any buffer objects that might be bound to arrays in - * this array object. - */ - unbind_buffer_object( ctx, obj->Vertex.BufferObj ); - unbind_buffer_object( ctx, obj->Normal.BufferObj ); - unbind_buffer_object( ctx, obj->Color.BufferObj ); - unbind_buffer_object( ctx, obj->SecondaryColor.BufferObj ); - unbind_buffer_object( ctx, obj->FogCoord.BufferObj ); - unbind_buffer_object( ctx, obj->Index.BufferObj ); - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - unbind_buffer_object( ctx, obj->TexCoord[i].BufferObj ); - } - unbind_buffer_object( ctx, obj->EdgeFlag.BufferObj ); - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - unbind_buffer_object( ctx, obj->VertexAttrib[i].BufferObj ); - } -#endif - /* The ID is immediately freed for re-use */ _mesa_remove_array_object(ctx, obj); - ctx->Driver.DeleteArrayObject(ctx, obj); + + /* Unreference the array object. + * If refcount hits zero, the object will be deleted. + */ + _mesa_reference_array_object(ctx, &obj, NULL); } }