diff options
Diffstat (limited to 'src/gallium/state_trackers/dri')
| -rw-r--r-- | src/gallium/state_trackers/dri/dri2.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c index 675a9bb..6b3acde 100644 --- a/src/gallium/state_trackers/dri/dri2.c +++ b/src/gallium/state_trackers/dri/dri2.c @@ -1232,6 +1232,45 @@ dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src, } } +static void * +dri2_map_image(__DRIcontext *context, __DRIimage *image, + int x0, int y0, int width, int height, + unsigned int flags, int *stride, void **data) +{ + struct dri_context *ctx = dri_context(context); + struct pipe_context *pipe = ctx->st->pipe; + enum pipe_transfer_usage pipe_access = 0; + struct pipe_transfer *trans; + void *map; + + if (!image || !data || *data) + return NULL; + + if (flags & __DRI_IMAGE_TRANSFER_READ) + pipe_access |= PIPE_TRANSFER_READ; + if (flags & __DRI_IMAGE_TRANSFER_WRITE) + pipe_access |= PIPE_TRANSFER_WRITE; + + map = pipe_transfer_map(pipe, image->texture, + 0, 0, pipe_access, x0, y0, width, height, + &trans); + if (map) { + *data = trans; + *stride = trans->stride; + } + + return map; +} + +static void +dri2_unmap_image(__DRIcontext *context, __DRIimage *image, void *data) +{ + struct dri_context *ctx = dri_context(context); + struct pipe_context *pipe = ctx->st->pipe; + + pipe_transfer_unmap(pipe, (struct pipe_transfer *)data); +} + static void dri2_destroy_image(__DRIimage *img) { @@ -1249,7 +1288,7 @@ dri2_get_capabilities(__DRIscreen *_screen) /* The extension is modified during runtime if DRI_PRIME is detected */ static __DRIimageExtension dri2ImageExtension = { - .base = { __DRI_IMAGE, 11 }, + .base = { __DRI_IMAGE, 12 }, .createImageFromName = dri2_create_image_from_name, .createImageFromRenderbuffer = dri2_create_image_from_renderbuffer, @@ -1265,6 +1304,8 @@ static __DRIimageExtension dri2ImageExtension = { .createImageFromDmaBufs = NULL, .blitImage = dri2_blit_image, .getCapabilities = dri2_get_capabilities, + .mapImage = dri2_map_image, + .unmapImage = dri2_unmap_image, }; |