diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_transfer.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_transfer.c | 249 |
1 files changed, 135 insertions, 114 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_transfer.c b/mesalib/src/gallium/auxiliary/util/u_transfer.c index 772b6d269..673a984fc 100644 --- a/mesalib/src/gallium/auxiliary/util/u_transfer.c +++ b/mesalib/src/gallium/auxiliary/util/u_transfer.c @@ -1,114 +1,135 @@ -#include "pipe/p_context.h"
-#include "util/u_rect.h"
-#include "util/u_inlines.h"
-#include "util/u_transfer.h"
-#include "util/u_memory.h"
-
-/* One-shot transfer operation with data supplied in a user
- * pointer. XXX: strides??
- */
-void u_default_transfer_inline_write( struct pipe_context *pipe,
- struct pipe_resource *resource,
- unsigned level,
- unsigned usage,
- const struct pipe_box *box,
- const void *data,
- unsigned stride,
- unsigned layer_stride)
-{
- struct pipe_transfer *transfer = NULL;
- uint8_t *map = NULL;
- const uint8_t *src_data = data;
- unsigned i;
-
- transfer = pipe->get_transfer(pipe,
- resource,
- level,
- usage,
- box );
- if (transfer == NULL)
- goto out;
-
- map = pipe_transfer_map(pipe, transfer);
- if (map == NULL)
- goto out;
-
- for (i = 0; i < box->depth; i++) {
- util_copy_rect(map,
- resource->format,
- transfer->stride, /* bytes */
- 0, 0,
- box->width,
- box->height,
- src_data,
- stride, /* bytes */
- 0, 0);
- map += transfer->layer_stride;
- src_data += layer_stride;
- }
-
-out:
- if (map)
- pipe_transfer_unmap(pipe, transfer);
-
- if (transfer)
- pipe_transfer_destroy(pipe, transfer);
-}
-
-
-boolean u_default_resource_get_handle(struct pipe_screen *screen,
- struct pipe_resource *resource,
- struct winsys_handle *handle)
-{
- return FALSE;
-}
-
-
-
-void u_default_transfer_flush_region( struct pipe_context *pipe,
- struct pipe_transfer *transfer,
- const struct pipe_box *box)
-{
- /* This is a no-op implementation, nothing to do.
- */
-}
-
-struct pipe_transfer * u_default_get_transfer(struct pipe_context *context,
- struct pipe_resource *resource,
- unsigned level,
- unsigned usage,
- const struct pipe_box *box)
-{
- struct pipe_transfer *transfer = CALLOC_STRUCT(pipe_transfer);
- if (transfer == NULL)
- return NULL;
-
- transfer->resource = resource;
- transfer->level = level;
- transfer->usage = usage;
- transfer->box = *box;
-
- /* Note strides are zero, this is ok for buffers, but not for
- * textures 2d & higher at least.
- */
- return transfer;
-}
-
-void u_default_transfer_unmap( struct pipe_context *pipe,
- struct pipe_transfer *transfer )
-{
-}
-
-void u_default_transfer_destroy(struct pipe_context *pipe,
- struct pipe_transfer *transfer)
-{
- FREE(transfer);
-}
-
-void u_default_redefine_user_buffer(struct pipe_context *ctx,
- struct pipe_resource *resource,
- unsigned offset,
- unsigned size)
-{
- resource->width0 = MAX2(resource->width0, offset + size);
-}
+#include "pipe/p_context.h" +#include "util/u_rect.h" +#include "util/u_inlines.h" +#include "util/u_transfer.h" +#include "util/u_memory.h" + +/* One-shot transfer operation with data supplied in a user + * pointer. XXX: strides?? + */ +void u_default_transfer_inline_write( struct pipe_context *pipe, + struct pipe_resource *resource, + unsigned level, + unsigned usage, + const struct pipe_box *box, + const void *data, + unsigned stride, + unsigned layer_stride) +{ + struct pipe_transfer *transfer = NULL; + uint8_t *map = NULL; + + assert(!(usage & PIPE_TRANSFER_READ)); + + /* the write flag is implicit by the nature of transfer_inline_write */ + usage |= PIPE_TRANSFER_WRITE; + + /* transfer_inline_write implicitly discards the rewritten buffer range */ + if (box->x == 0 && box->width == resource->width0) { + usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE; + } else { + usage |= PIPE_TRANSFER_DISCARD_RANGE; + } + + transfer = pipe->get_transfer(pipe, + resource, + level, + usage, + box ); + if (transfer == NULL) + goto out; + + map = pipe_transfer_map(pipe, transfer); + if (map == NULL) + goto out; + + if (resource->target == PIPE_BUFFER) { + assert(box->height == 1); + assert(box->depth == 1); + + memcpy(map, data, box->width); + } + else { + const uint8_t *src_data = data; + unsigned i; + + for (i = 0; i < box->depth; i++) { + util_copy_rect(map, + resource->format, + transfer->stride, /* bytes */ + 0, 0, + box->width, + box->height, + src_data, + stride, /* bytes */ + 0, 0); + map += transfer->layer_stride; + src_data += layer_stride; + } + } + +out: + if (map) + pipe_transfer_unmap(pipe, transfer); + + if (transfer) + pipe_transfer_destroy(pipe, transfer); +} + + +boolean u_default_resource_get_handle(struct pipe_screen *screen, + struct pipe_resource *resource, + struct winsys_handle *handle) +{ + return FALSE; +} + + + +void u_default_transfer_flush_region( struct pipe_context *pipe, + struct pipe_transfer *transfer, + const struct pipe_box *box) +{ + /* This is a no-op implementation, nothing to do. + */ +} + +struct pipe_transfer * u_default_get_transfer(struct pipe_context *context, + struct pipe_resource *resource, + unsigned level, + unsigned usage, + const struct pipe_box *box) +{ + struct pipe_transfer *transfer = CALLOC_STRUCT(pipe_transfer); + if (transfer == NULL) + return NULL; + + transfer->resource = resource; + transfer->level = level; + transfer->usage = usage; + transfer->box = *box; + + /* Note strides are zero, this is ok for buffers, but not for + * textures 2d & higher at least. + */ + return transfer; +} + +void u_default_transfer_unmap( struct pipe_context *pipe, + struct pipe_transfer *transfer ) +{ +} + +void u_default_transfer_destroy(struct pipe_context *pipe, + struct pipe_transfer *transfer) +{ + FREE(transfer); +} + +void u_default_redefine_user_buffer(struct pipe_context *ctx, + struct pipe_resource *resource, + unsigned offset, + unsigned size) +{ + resource->width0 = MAX2(resource->width0, offset + size); +} |