From 0e1eb1b8765149873f9fd27d455d8b7ed3387709 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Wed, 17 Feb 2010 21:28:01 +0000 Subject: i915g: Conversion to winsys handle --- .../winsys/drm/intel/gem/intel_drm_buffer.c | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) (limited to 'src/gallium/winsys/drm/intel/gem/intel_drm_buffer.c') diff --git a/src/gallium/winsys/drm/intel/gem/intel_drm_buffer.c b/src/gallium/winsys/drm/intel/gem/intel_drm_buffer.c index ac4dd6e00e..cb4f92a3b1 100644 --- a/src/gallium/winsys/drm/intel/gem/intel_drm_buffer.c +++ b/src/gallium/winsys/drm/intel/gem/intel_drm_buffer.c @@ -1,4 +1,5 @@ +#include "state_tracker/drm_api.h" #include "intel_drm_winsys.h" #include "util/u_memory.h" @@ -52,6 +53,66 @@ err: return NULL; } +static struct intel_buffer * +intel_drm_buffer_from_handle(struct intel_winsys *iws, + struct winsys_handle *whandle, + unsigned *stride) +{ + struct intel_drm_winsys *idws = intel_drm_winsys(iws); + struct intel_drm_buffer *buf = CALLOC_STRUCT(intel_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 != INTEL_TILE_NONE) + buf->map_gtt = TRUE; + + *stride = whandle->stride; + + return (struct intel_buffer *)buf; + +err: + FREE(buf); + return NULL; +} + +static boolean +intel_drm_buffer_get_handle(struct intel_winsys *iws, + struct intel_buffer *buffer, + struct winsys_handle *whandle, + unsigned stride) +{ + struct intel_drm_buffer *buf = intel_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 intel_drm_buffer_set_fence_reg(struct intel_winsys *iws, struct intel_buffer *buffer, @@ -146,6 +207,8 @@ void intel_drm_winsys_init_buffer_functions(struct intel_drm_winsys *idws) { idws->base.buffer_create = intel_drm_buffer_create; + idws->base.buffer_from_handle = intel_drm_buffer_from_handle; + idws->base.buffer_get_handle = intel_drm_buffer_get_handle; idws->base.buffer_set_fence_reg = intel_drm_buffer_set_fence_reg; idws->base.buffer_map = intel_drm_buffer_map; idws->base.buffer_unmap = intel_drm_buffer_unmap; -- cgit v1.2.3