diff options
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_buffer.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_buffer.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_buffer.c b/src/gallium/drivers/nvc0/nvc0_buffer.c new file mode 100644 index 00000000000..873016f0d5f --- /dev/null +++ b/src/gallium/drivers/nvc0/nvc0_buffer.c @@ -0,0 +1,166 @@ + +#include "util/u_inlines.h" +#include "util/u_memory.h" +#include "util/u_math.h" + +#define NOUVEAU_NVC0 +#include "nouveau/nouveau_screen.h" +#include "nouveau/nouveau_winsys.h" +#undef NOUVEAU_NVC0 + +#include "nvc0_context.h" +#include "nvc0_resource.h" + +static void +nvc0_buffer_destroy(struct pipe_screen *pscreen, + struct pipe_resource *presource) +{ + struct nvc0_resource *res = nvc0_resource(presource); + + if (res->bo) + nouveau_screen_bo_release(pscreen, res->bo); + + if (res->data) + FREE(res->data); + + FREE(res); +} + +static void * +nvc0_buffer_transfer_map(struct pipe_context *pipe, + struct pipe_transfer *transfer) +{ + struct nvc0_resource *res = nvc0_resource(transfer->resource); + uint8_t *map; + uint32_t flags; + + if (res->base.bind & PIPE_BIND_VERTEX_BUFFER) + nvc0_context(pipe)->vbo_dirty = TRUE; + +// #ifdef NOUVEAU_USERPSACE_MM + if (res->base.bind & PIPE_BIND_CONSTANT_BUFFER) + return res->data + transfer->box.x; +// #endif + flags = nouveau_screen_transfer_flags(transfer->usage); + + map = nouveau_screen_bo_map_range(pipe->screen, + res->bo, + transfer->box.x, transfer->box.width, + flags); + if (!map) + return NULL; + + return map + transfer->box.x; +} + + + +static void +nvc0_buffer_transfer_flush_region(struct pipe_context *pipe, + struct pipe_transfer *transfer, + const struct pipe_box *box) +{ + struct nvc0_resource *res = nvc0_resource(transfer->resource); + +#ifdef NOUVEAU_USERPSACE_MM + if (!res->bo) + return; +#endif + nouveau_screen_bo_map_flush_range(pipe->screen, + res->bo, + transfer->box.x + box->x, + box->width); +} + +static void +nvc0_buffer_transfer_unmap(struct pipe_context *pipe, + struct pipe_transfer *transfer) +{ + struct nvc0_resource *res = nvc0_resource(transfer->resource); + +// #ifdef NOUVEAU_USERPSACE_MM + if (res->data) + return; +// #endif + nouveau_screen_bo_unmap(pipe->screen, res->bo); +} + +const struct u_resource_vtbl nvc0_buffer_vtbl = +{ + u_default_resource_get_handle, /* get_handle */ + nvc0_buffer_destroy, /* resource_destroy */ + NULL, /* is_resource_referenced */ + u_default_get_transfer, /* get_transfer */ + u_default_transfer_destroy, /* transfer_destroy */ + nvc0_buffer_transfer_map, /* transfer_map */ + nvc0_buffer_transfer_flush_region, /* transfer_flush_region */ + nvc0_buffer_transfer_unmap, /* transfer_unmap */ + u_default_transfer_inline_write /* transfer_inline_write */ +}; + +struct pipe_resource * +nvc0_buffer_create(struct pipe_screen *pscreen, + const struct pipe_resource *templ) +{ + struct nvc0_resource *buffer; + + buffer = CALLOC_STRUCT(nvc0_resource); + if (!buffer) + return NULL; + + buffer->base = *templ; + buffer->vtbl = &nvc0_buffer_vtbl; + pipe_reference_init(&buffer->base.reference, 1); + buffer->base.screen = pscreen; + + if (buffer->base.bind & PIPE_BIND_CONSTANT_BUFFER) + buffer->data = MALLOC(buffer->base.width0); + + 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 * +nvc0_user_buffer_create(struct pipe_screen *pscreen, + void *ptr, + unsigned bytes, + unsigned bind) +{ + struct nvc0_resource *buffer; + + buffer = CALLOC_STRUCT(nvc0_resource); + if (!buffer) + return NULL; + + pipe_reference_init(&buffer->base.reference, 1); + buffer->vtbl = &nvc0_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; +} |