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 0000000000..873016f0d5
--- /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;
+}