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authorJakob Bornecrantz <wallbraker@gmail.com>2010-03-25 19:19:00 +0100
committerJakob Bornecrantz <wallbraker@gmail.com>2010-03-26 00:38:17 +0100
commitbc88c95990f871a206a8fe93e7541f1f41841f7e (patch)
treefe394e2b3dedc3ab6de5c2f108bf0c5c78983872 /src/gallium/winsys/i915/drm/i915_drm_buffer.c
parent80672e84cf79ab12b7a4ff56567184d1c39baef3 (diff)
i915g: Rename winsys prefix to i915_ from intel_
Since the winsys isn't shared with i965 and never will be
Diffstat (limited to 'src/gallium/winsys/i915/drm/i915_drm_buffer.c')
-rw-r--r--src/gallium/winsys/i915/drm/i915_drm_buffer.c217
1 files changed, 217 insertions, 0 deletions
diff --git a/src/gallium/winsys/i915/drm/i915_drm_buffer.c b/src/gallium/winsys/i915/drm/i915_drm_buffer.c
new file mode 100644
index 00000000000..3bd85026b21
--- /dev/null
+++ b/src/gallium/winsys/i915/drm/i915_drm_buffer.c
@@ -0,0 +1,217 @@
+
+#include "state_tracker/drm_api.h"
+#include "i915_drm_winsys.h"
+#include "util/u_memory.h"
+
+#include "i915_drm.h"
+
+static struct i915_winsys_buffer *
+i915_drm_buffer_create(struct i915_winsys *iws,
+ unsigned size, unsigned alignment,
+ enum i915_winsys_buffer_type type)
+{
+ struct i915_drm_buffer *buf = CALLOC_STRUCT(i915_drm_buffer);
+ struct i915_drm_winsys *idws = i915_drm_winsys(iws);
+ drm_intel_bufmgr *pool;
+ char *name;
+
+ if (!buf)
+ return NULL;
+
+ buf->magic = 0xDEAD1337;
+ buf->flinked = FALSE;
+ buf->flink = 0;
+ buf->map_gtt = FALSE;
+
+ if (type == I915_NEW_TEXTURE) {
+ name = "gallium3d_texture";
+ pool = idws->pools.gem;
+ } else if (type == I915_NEW_VERTEX) {
+ name = "gallium3d_vertex";
+ pool = idws->pools.gem;
+ buf->map_gtt = TRUE;
+ } else if (type == I915_NEW_SCANOUT) {
+ name = "gallium3d_scanout";
+ pool = idws->pools.gem;
+ buf->map_gtt = TRUE;
+ } else {
+ assert(0);
+ name = "gallium3d_unknown";
+ pool = idws->pools.gem;
+ }
+
+ buf->bo = drm_intel_bo_alloc(pool, name, size, alignment);
+
+ if (!buf->bo)
+ goto err;
+
+ return (struct i915_winsys_buffer *)buf;
+
+err:
+ assert(0);
+ FREE(buf);
+ return NULL;
+}
+
+static struct i915_winsys_buffer *
+i915_drm_buffer_from_handle(struct i915_winsys *iws,
+ struct winsys_handle *whandle,
+ unsigned *stride)
+{
+ struct i915_drm_winsys *idws = i915_drm_winsys(iws);
+ struct i915_drm_buffer *buf = CALLOC_STRUCT(i915_drm_buffer);
+ uint32_t tile = 0, swizzle = 0;
+
+ if (!buf)
+ return NULL;
+
+ buf->magic = 0xDEAD1337;
+ buf->bo = drm_intel_bo_gem_create_from_name(idws->pools.gem, "gallium3d_from_handle", whandle->handle);
+ buf->flinked = TRUE;
+ buf->flink = whandle->handle;
+
+ if (!buf->bo)
+ goto err;
+
+ drm_intel_bo_get_tiling(buf->bo, &tile, &swizzle);
+ if (tile != I915_TILE_NONE)
+ buf->map_gtt = TRUE;
+
+ *stride = whandle->stride;
+
+ return (struct i915_winsys_buffer *)buf;
+
+err:
+ FREE(buf);
+ return NULL;
+}
+
+static boolean
+i915_drm_buffer_get_handle(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer,
+ struct winsys_handle *whandle,
+ unsigned stride)
+{
+ struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
+
+ if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
+ if (!buf->flinked) {
+ if (drm_intel_bo_flink(buf->bo, &buf->flink))
+ return FALSE;
+ buf->flinked = TRUE;
+ }
+
+ whandle->handle = buf->flink;
+ } else if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
+ whandle->handle = buf->bo->handle;
+ } else {
+ assert(!"unknown usage");
+ return FALSE;
+ }
+
+ whandle->stride = stride;
+ return TRUE;
+}
+
+static int
+i915_drm_buffer_set_fence_reg(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer,
+ unsigned stride,
+ enum i915_winsys_buffer_tile tile)
+{
+ struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
+ assert(I915_TILING_NONE == I915_TILE_NONE);
+ assert(I915_TILING_X == I915_TILE_X);
+ assert(I915_TILING_Y == I915_TILE_Y);
+
+ if (tile != I915_TILE_NONE) {
+ assert(buf->map_count == 0);
+ buf->map_gtt = TRUE;
+ }
+
+ return drm_intel_bo_set_tiling(buf->bo, &tile, stride);
+}
+
+static void *
+i915_drm_buffer_map(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer,
+ boolean write)
+{
+ struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
+ drm_intel_bo *bo = intel_bo(buffer);
+ int ret = 0;
+
+ assert(bo);
+
+ if (buf->map_count)
+ goto out;
+
+ if (buf->map_gtt)
+ ret = drm_intel_gem_bo_map_gtt(bo);
+ else
+ ret = drm_intel_bo_map(bo, write);
+
+ buf->ptr = bo->virtual;
+
+ assert(ret == 0);
+out:
+ if (ret)
+ return NULL;
+
+ buf->map_count++;
+ return buf->ptr;
+}
+
+static void
+i915_drm_buffer_unmap(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer)
+{
+ struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
+
+ if (--buf->map_count)
+ return;
+
+ if (buf->map_gtt)
+ drm_intel_gem_bo_unmap_gtt(intel_bo(buffer));
+ else
+ drm_intel_bo_unmap(intel_bo(buffer));
+}
+
+static int
+i915_drm_buffer_write(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer,
+ size_t offset,
+ size_t size,
+ const void *data)
+{
+ struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
+
+ return drm_intel_bo_subdata(buf->bo, offset, size, (void*)data);
+}
+
+static void
+i915_drm_buffer_destroy(struct i915_winsys *iws,
+ struct i915_winsys_buffer *buffer)
+{
+ drm_intel_bo_unreference(intel_bo(buffer));
+
+#ifdef DEBUG
+ i915_drm_buffer(buffer)->magic = 0;
+ i915_drm_buffer(buffer)->bo = NULL;
+#endif
+
+ FREE(buffer);
+}
+
+void
+i915_drm_winsys_init_buffer_functions(struct i915_drm_winsys *idws)
+{
+ idws->base.buffer_create = i915_drm_buffer_create;
+ idws->base.buffer_from_handle = i915_drm_buffer_from_handle;
+ idws->base.buffer_get_handle = i915_drm_buffer_get_handle;
+ idws->base.buffer_set_fence_reg = i915_drm_buffer_set_fence_reg;
+ idws->base.buffer_map = i915_drm_buffer_map;
+ idws->base.buffer_unmap = i915_drm_buffer_unmap;
+ idws->base.buffer_write = i915_drm_buffer_write;
+ idws->base.buffer_destroy = i915_drm_buffer_destroy;
+}