164 lines
5.1 KiB
C
164 lines
5.1 KiB
C
#include "pipe/p_context.h"
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#include "util/u_surface.h"
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#include "util/u_inlines.h"
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#include "util/u_transfer.h"
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#include "util/u_memory.h"
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/* One-shot transfer operation with data supplied in a user
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* pointer. XXX: strides??
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*/
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void u_default_transfer_inline_write( struct pipe_context *pipe,
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struct pipe_resource *resource,
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unsigned level,
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unsigned usage,
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const struct pipe_box *box,
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const void *data,
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unsigned stride,
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unsigned layer_stride)
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{
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struct pipe_transfer *transfer = NULL;
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uint8_t *map = NULL;
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assert(!(usage & PIPE_TRANSFER_READ));
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/* the write flag is implicit by the nature of transfer_inline_write */
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usage |= PIPE_TRANSFER_WRITE;
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/* transfer_inline_write implicitly discards the rewritten buffer range */
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/* XXX this looks very broken for non-buffer resources having more than one dim. */
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if (box->x == 0 && box->width == resource->width0) {
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usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
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} else {
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usage |= PIPE_TRANSFER_DISCARD_RANGE;
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}
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map = pipe->transfer_map(pipe,
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resource,
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level,
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usage,
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box, &transfer);
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if (map == NULL)
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return;
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if (resource->target == PIPE_BUFFER) {
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assert(box->height == 1);
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assert(box->depth == 1);
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memcpy(map, data, box->width);
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}
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else {
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const uint8_t *src_data = data;
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util_copy_box(map,
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resource->format,
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transfer->stride, /* bytes */
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transfer->layer_stride, /* bytes */
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0, 0, 0,
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box->width,
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box->height,
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box->depth,
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src_data,
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stride, /* bytes */
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layer_stride, /* bytes */
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0, 0, 0);
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}
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pipe_transfer_unmap(pipe, transfer);
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}
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boolean u_default_resource_get_handle(struct pipe_screen *screen,
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struct pipe_resource *resource,
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struct winsys_handle *handle)
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{
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return FALSE;
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}
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void u_default_transfer_flush_region( struct pipe_context *pipe,
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struct pipe_transfer *transfer,
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const struct pipe_box *box)
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{
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/* This is a no-op implementation, nothing to do.
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*/
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}
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void u_default_transfer_unmap( struct pipe_context *pipe,
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struct pipe_transfer *transfer )
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{
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}
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static INLINE struct u_resource *
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u_resource( struct pipe_resource *res )
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{
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return (struct u_resource *)res;
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}
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boolean u_resource_get_handle_vtbl(struct pipe_screen *screen,
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struct pipe_resource *resource,
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struct winsys_handle *handle)
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{
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struct u_resource *ur = u_resource(resource);
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return ur->vtbl->resource_get_handle(screen, resource, handle);
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}
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void u_resource_destroy_vtbl(struct pipe_screen *screen,
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struct pipe_resource *resource)
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{
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struct u_resource *ur = u_resource(resource);
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ur->vtbl->resource_destroy(screen, resource);
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}
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void *u_transfer_map_vtbl(struct pipe_context *context,
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struct pipe_resource *resource,
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unsigned level,
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unsigned usage,
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const struct pipe_box *box,
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struct pipe_transfer **transfer)
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{
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struct u_resource *ur = u_resource(resource);
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return ur->vtbl->transfer_map(context, resource, level, usage, box,
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transfer);
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}
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void u_transfer_flush_region_vtbl( struct pipe_context *pipe,
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struct pipe_transfer *transfer,
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const struct pipe_box *box)
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{
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struct u_resource *ur = u_resource(transfer->resource);
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ur->vtbl->transfer_flush_region(pipe, transfer, box);
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}
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void u_transfer_unmap_vtbl( struct pipe_context *pipe,
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struct pipe_transfer *transfer )
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{
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struct u_resource *ur = u_resource(transfer->resource);
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ur->vtbl->transfer_unmap(pipe, transfer);
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}
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void u_transfer_inline_write_vtbl( struct pipe_context *pipe,
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struct pipe_resource *resource,
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unsigned level,
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unsigned usage,
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const struct pipe_box *box,
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const void *data,
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unsigned stride,
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unsigned layer_stride)
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{
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struct u_resource *ur = u_resource(resource);
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ur->vtbl->transfer_inline_write(pipe,
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resource,
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level,
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usage,
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box,
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data,
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stride,
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layer_stride);
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}
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