diff options
Diffstat (limited to 'src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c')
-rw-r--r-- | src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c b/src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c index 07be1df87f..33a17496b2 100644 --- a/src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c +++ b/src/gallium/winsys/drm/i965/gem/i965_drm_buffer.c @@ -1,4 +1,5 @@ +#include "state_tracker/drm_api.h" #include "i965_drm_winsys.h" #include "util/u_memory.h" #include "util/u_inlines.h" @@ -122,6 +123,78 @@ err: return PIPE_ERROR_OUT_OF_MEMORY; } +static enum pipe_error +i965_libdrm_bo_from_handle(struct brw_winsys_screen *sws, + struct winsys_handle *whandle, + unsigned *stride, + unsigned *tile, + struct brw_winsys_buffer **bo_out) +{ + struct i965_libdrm_winsys *idws = i965_libdrm_winsys(sws); + struct i965_libdrm_buffer *buf = CALLOC_STRUCT(i965_libdrm_buffer); + uint32_t swizzle = 0; + + if (BRW_DUMP) + debug_printf("%s\n", __FUNCTION__); + + if (!buf) + return PIPE_ERROR_OUT_OF_MEMORY; + + pipe_reference_init(&buf->base.reference, 1); + buf->bo = drm_intel_bo_gem_create_from_name(idws->gem, "FROM_HANDLE", whandle->handle); + buf->base.size = buf->bo->size; + buf->base.sws = &idws->base; + buf->flinked = TRUE; + buf->flink = whandle->handle; + + + if (!buf->bo) + goto err; + + drm_intel_bo_get_tiling(buf->bo, &buf->tiling, &swizzle); + if (buf->tiling != 0) + buf->map_gtt = TRUE; + + *tile = buf->tiling; + *stride = whandle->stride; + + *bo_out = &buf->base; + return PIPE_OK; + +err: + FREE(buf); + return PIPE_ERROR_OUT_OF_MEMORY; +} + +static enum pipe_error +i965_libdrm_bo_get_handle(struct brw_winsys_buffer *buffer, + struct winsys_handle *whandle, + unsigned stride) +{ + struct i965_libdrm_buffer *buf = i965_libdrm_buffer(buffer); + + if (BRW_DUMP) + debug_printf("%s\n", __FUNCTION__); + + if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) { + if (!buf->flinked) { + if (drm_intel_bo_flink(buf->bo, &buf->flink)) + return PIPE_ERROR_BAD_INPUT; + 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 PIPE_ERROR_BAD_INPUT; + } + + whandle->stride = stride; + return PIPE_OK; +} + static void i965_libdrm_bo_destroy(struct brw_winsys_buffer *buffer) { @@ -415,6 +488,8 @@ void i965_libdrm_winsys_init_buffer_functions(struct i965_libdrm_winsys *idws) { idws->base.bo_alloc = i965_libdrm_bo_alloc; + idws->base.bo_from_handle = i965_libdrm_bo_from_handle; + idws->base.bo_get_handle = i965_libdrm_bo_get_handle; idws->base.bo_destroy = i965_libdrm_bo_destroy; idws->base.bo_emit_reloc = i965_libdrm_bo_emit_reloc; idws->base.bo_exec = i965_libdrm_bo_exec; |