void
vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
(void) list;
(void) mode;
if (!save->prim_store)
save->prim_store = alloc_prim_store(ctx);
if (!save->vertex_store)
save->vertex_store = alloc_vertex_store(ctx);
save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
_save_reset_vertex(ctx);
_save_reset_counters(ctx);
ctx->Driver.SaveNeedFlush = 0;
}
/**
* Execute the buffer and save copied verts.
* This is called from the display list code when executing
* a drawing command.
*/
void
vbo_save_playback_vertex_list(struct gl_context *ctx, void *data)
{
const struct vbo_save_vertex_list *node =
(const struct vbo_save_vertex_list *) data;
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLboolean remap_vertex_store = GL_FALSE;
if (save->vertex_store && save->vertex_store->buffer) {
/* The vertex store is currently mapped but we're about to replay
* a display list. This can happen when a nested display list is
* being build with GL_COMPILE_AND_EXECUTE.
* We never want to have mapped vertex buffers when we're drawing.
* Unmap the vertex store, execute the list, then remap the vertex
* store.
*/
vbo_save_unmap_vertex_store(ctx, save->vertex_store);
remap_vertex_store = GL_TRUE;
}
FLUSH_CURRENT(ctx, 0);
if (node->prim_count > 0) {
if (_mesa_inside_begin_end(ctx) && node->prim[0].begin) {
/* Error: we're about to begin a new primitive but we're already
* inside a glBegin/End pair.
*/
_mesa_error(ctx, GL_INVALID_OPERATION,
"draw operation inside glBegin/End");
goto end;
}
else if (save->replay_flags) {
/* Various degenerate cases: translate into immediate mode
* calls rather than trying to execute in place.
*/
vbo_save_loopback_vertex_list( ctx, node );
goto end;
}
if (ctx->NewState)
_mesa_update_state( ctx );
/* XXX also need to check if shader enabled, but invalid */
if ((ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) ||
(ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBegin (invalid vertex/fragment program)");
return;
}
vbo_bind_vertex_list( ctx, node );
vbo_draw_method(vbo_context(ctx), DRAW_DISPLAY_LIST);
/* Again...
*/
if (ctx->NewState)
_mesa_update_state( ctx );
if (node->count > 0) {
vbo_context(ctx)->draw_prims(ctx,
node->prim,
node->prim_count,
NULL,
GL_TRUE,
0, /* Node is a VBO, so this is ok */
node->count - 1,
NULL, 0, NULL);
}
}
/* Copy to current?
*/
_playback_copy_to_current( ctx, node );
end:
if (remap_vertex_store) {
save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
}
}
/**
* Insert the active immediate struct onto the display list currently
* being built.
*/
static void
_save_compile_vertex_list(struct gl_context *ctx)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
struct vbo_save_vertex_list *node;
/* Allocate space for this structure in the display list currently
* being compiled.
*/
node = (struct vbo_save_vertex_list *)
_mesa_dlist_alloc(ctx, save->opcode_vertex_list, sizeof(*node));
if (!node)
return;
/* Duplicate our template, increment refcounts to the storage structs:
*/
memcpy(node->attrsz, save->attrsz, sizeof(node->attrsz));
node->vertex_size = save->vertex_size;
node->buffer_offset =
(save->buffer - save->vertex_store->buffer) * sizeof(GLfloat);
node->count = save->vert_count;
node->wrap_count = save->copied.nr;
node->dangling_attr_ref = save->dangling_attr_ref;
node->prim = save->prim;
node->prim_count = save->prim_count;
node->vertex_store = save->vertex_store;
node->prim_store = save->prim_store;
node->vertex_store->refcount++;
node->prim_store->refcount++;
if (node->prim[0].no_current_update) {
node->current_size = 0;
node->current_data = NULL;
}
else {
node->current_size = node->vertex_size - node->attrsz[0];
node->current_data = NULL;
if (node->current_size) {
/* If the malloc fails, we just pull the data out of the VBO
* later instead.
*/
node->current_data = MALLOC(node->current_size * sizeof(GLfloat));
if (node->current_data) {
const char *buffer = (const char *) save->vertex_store->buffer;
unsigned attr_offset = node->attrsz[0] * sizeof(GLfloat);
unsigned vertex_offset = 0;
if (node->count)
vertex_offset =
(node->count - 1) * node->vertex_size * sizeof(GLfloat);
memcpy(node->current_data,
buffer + node->buffer_offset + vertex_offset + attr_offset,
node->current_size * sizeof(GLfloat));
}
}
}
assert(node->attrsz[VBO_ATTRIB_POS] != 0 || node->count == 0);
if (save->dangling_attr_ref)
ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
save->vertex_store->used += save->vertex_size * node->count;
save->prim_store->used += node->prim_count;
/* Copy duplicated vertices
*/
save->copied.nr = _save_copy_vertices(ctx, node, save->buffer);
/* Deal with GL_COMPILE_AND_EXECUTE:
*/
if (ctx->ExecuteFlag) {
struct _glapi_table *dispatch = GET_DISPATCH();
_glapi_set_dispatch(ctx->Exec);
vbo_loopback_vertex_list(ctx,
(const GLfloat *) ((const char *) save->
vertex_store->buffer +
node->buffer_offset),
node->attrsz, node->prim, node->prim_count,
node->wrap_count, node->vertex_size);
_glapi_set_dispatch(dispatch);
}
/* Decide whether the storage structs are full, or can be used for
* the next vertex lists as well.
*/
if (save->vertex_store->used >
VBO_SAVE_BUFFER_SIZE - 16 * (save->vertex_size + 4)) {
/* Unmap old store:
*/
vbo_save_unmap_vertex_store(ctx, save->vertex_store);
/* Release old reference:
*/
save->vertex_store->refcount--;
assert(save->vertex_store->refcount != 0);
save->vertex_store = NULL;
/* Allocate and map new store:
*/
save->vertex_store = alloc_vertex_store(ctx);
save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
save->out_of_memory = save->buffer_ptr == NULL;
}
if (save->prim_store->used > VBO_SAVE_PRIM_SIZE - 6) {
save->prim_store->refcount--;
assert(save->prim_store->refcount != 0);
save->prim_store = alloc_prim_store(ctx);
}
/* Reset our structures for the next run of vertices:
*/
_save_reset_counters(ctx);
}
