pipe_surface_reset(ctx, ps, pt, level, layer, flags);
}
+/* Return true if the surfaces are equal. */
+static INLINE boolean
+pipe_surface_equal(struct pipe_surface *s1, struct pipe_surface *s2)
+{
+ return s1->texture == s2->texture &&
+ s1->format == s2->format &&
+ (s1->texture->target != PIPE_BUFFER ||
+ (s1->u.buf.first_element == s2->u.buf.first_element &&
+ s1->u.buf.last_element == s2->u.buf.last_element)) &&
+ (s1->texture->target == PIPE_BUFFER ||
+ (s1->u.tex.level == s2->u.tex.level &&
+ s1->u.tex.first_layer == s2->u.tex.first_layer &&
+ s1->u.tex.last_layer == s2->u.tex.last_layer));
+}
+
/*
* Convenience wrappers for screen buffer functions.
*/
static INLINE struct pipe_resource *
pipe_buffer_create( struct pipe_screen *screen,
unsigned bind,
+ unsigned usage,
unsigned size )
{
struct pipe_resource buffer;
buffer.target = PIPE_BUFFER;
buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
buffer.bind = bind;
- buffer.usage = PIPE_USAGE_DEFAULT;
+ buffer.usage = usage;
buffer.flags = 0;
buffer.width0 = size;
buffer.height0 = 1;
map = pipe->transfer_map( pipe, *transfer );
if (map == NULL) {
pipe->transfer_destroy( pipe, *transfer );
+ *transfer = NULL;
return NULL;
}
static INLINE void
pipe_buffer_unmap(struct pipe_context *pipe,
- struct pipe_resource *buf,
struct pipe_transfer *transfer)
{
if (transfer) {
if (map)
memcpy(data, map + offset, size);
- pipe_buffer_unmap(pipe, buf, src_transfer);
+ pipe_buffer_unmap(pipe, src_transfer);
}
static INLINE struct pipe_transfer *
}
}
+/**
+ * This function is used to copy an array of pipe_vertex_buffer structures,
+ * while properly referencing the pipe_vertex_buffer::buffer member.
+ *
+ * \sa util_copy_framebuffer_state
+ */
+static INLINE void util_copy_vertex_buffers(struct pipe_vertex_buffer *dst,
+ unsigned *dst_count,
+ const struct pipe_vertex_buffer *src,
+ unsigned src_count)
+{
+ unsigned i;
+
+ /* Reference the buffers of 'src' in 'dst'. */
+ for (i = 0; i < src_count; i++) {
+ pipe_resource_reference(&dst[i].buffer, src[i].buffer);
+ }
+ /* Unreference the rest of the buffers in 'dst'. */
+ for (; i < *dst_count; i++) {
+ pipe_resource_reference(&dst[i].buffer, NULL);
+ }
+
+ /* Update the size of 'dst' and copy over the other members
+ * of pipe_vertex_buffer. */
+ *dst_count = src_count;
+ memcpy(dst, src, src_count * sizeof(struct pipe_vertex_buffer));
+}
+
#ifdef __cplusplus
}
#endif