diff options
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_buffer.c')
-rw-r--r-- | src/gallium/drivers/nv50/nv50_buffer.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_buffer.c b/src/gallium/drivers/nv50/nv50_buffer.c new file mode 100644 index 0000000000..dacfee9799 --- /dev/null +++ b/src/gallium/drivers/nv50/nv50_buffer.c @@ -0,0 +1,150 @@ + +#include "util/u_inlines.h" +#include "util/u_memory.h" +#include "util/u_math.h" + +#include "nouveau/nouveau_screen.h" +#include "nouveau/nouveau_winsys.h" +#include "nv50_resource.h" + + + +static void nv50_buffer_destroy(struct pipe_screen *pscreen, + struct pipe_resource *presource) +{ + struct nv50_resource *buffer = nv50_resource(presource); + + nouveau_screen_bo_release(pscreen, buffer->bo); + FREE(buffer); +} + + + + +/* Utility functions for transfer create/destroy are hooked in and + * just record the arguments to those functions. + */ +static void * +nv50_buffer_transfer_map( struct pipe_context *pipe, + struct pipe_transfer *transfer ) +{ + struct nv50_resource *buffer = nv50_resource(transfer->resource); + uint8_t *map; + + map = nouveau_screen_bo_map_range( pipe->screen, + buffer->bo, + transfer->box.x, + transfer->box.width, + nouveau_screen_transfer_flags(transfer->usage) ); + if (map == NULL) + return NULL; + + return map + transfer->box.x; +} + + + +static void nv50_buffer_transfer_flush_region( struct pipe_context *pipe, + struct pipe_transfer *transfer, + const struct pipe_box *box) +{ + struct nv50_resource *buffer = nv50_resource(transfer->resource); + + nouveau_screen_bo_map_flush_range(pipe->screen, + buffer->bo, + transfer->box.x + box->x, + box->width); +} + +static void nv50_buffer_transfer_unmap( struct pipe_context *pipe, + struct pipe_transfer *transfer ) +{ + struct nv50_resource *buffer = nv50_resource(transfer->resource); + + nouveau_screen_bo_unmap(pipe->screen, buffer->bo); +} + + + + +const struct u_resource_vtbl nv50_buffer_vtbl = +{ + u_default_resource_get_handle, /* get_handle */ + nv50_buffer_destroy, /* resource_destroy */ + NULL, /* is_resource_referenced */ + u_default_get_transfer, /* get_transfer */ + u_default_transfer_destroy, /* transfer_destroy */ + nv50_buffer_transfer_map, /* transfer_map */ + nv50_buffer_transfer_flush_region, /* transfer_flush_region */ + nv50_buffer_transfer_unmap, /* transfer_unmap */ + u_default_transfer_inline_write /* transfer_inline_write */ +}; + + + + +struct pipe_resource * +nv50_buffer_create(struct pipe_screen *pscreen, + const struct pipe_resource *template) +{ + struct nv50_resource *buffer; + + buffer = CALLOC_STRUCT(nv50_resource); + if (!buffer) + return NULL; + + buffer->base = *template; + buffer->vtbl = &nv50_buffer_vtbl; + pipe_reference_init(&buffer->base.reference, 1); + buffer->base.screen = pscreen; + + buffer->bo = nouveau_screen_bo_new(pscreen, + 16, + buffer->base.usage, + buffer->base.bind, + buffer->base.width0); + + if (buffer->bo == NULL) + goto fail; + + return &buffer->base; + +fail: + FREE(buffer); + return NULL; +} + + +struct pipe_resource * +nv50_user_buffer_create(struct pipe_screen *pscreen, + void *ptr, + unsigned bytes, + unsigned bind) +{ + struct nv50_resource *buffer; + + buffer = CALLOC_STRUCT(nv50_resource); + if (!buffer) + return NULL; + + pipe_reference_init(&buffer->base.reference, 1); + buffer->vtbl = &nv50_buffer_vtbl; + buffer->base.screen = pscreen; + buffer->base.format = PIPE_FORMAT_R8_UNORM; + buffer->base.usage = PIPE_USAGE_IMMUTABLE; + buffer->base.bind = bind; + buffer->base.width0 = bytes; + buffer->base.height0 = 1; + buffer->base.depth0 = 1; + + buffer->bo = nouveau_screen_bo_user(pscreen, ptr, bytes); + if (!buffer->bo) + goto fail; + + return &buffer->base; + +fail: + FREE(buffer); + return NULL; +} + |