| /************************************************************************** |
| * |
| * Copyright 2011 Christian König. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #ifndef vl_video_buffer_h |
| #define vl_video_buffer_h |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_video_codec.h" |
| |
| #include "vl_defines.h" |
| |
| /** |
| * implementation of a planar ycbcr buffer |
| */ |
| |
| /* planar buffer for vl data upload and manipulation */ |
| struct vl_video_buffer |
| { |
| struct pipe_video_buffer base; |
| unsigned num_planes; |
| struct pipe_resource *resources[VL_NUM_COMPONENTS]; |
| struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS]; |
| struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS]; |
| struct pipe_surface *surfaces[VL_MAX_SURFACES]; |
| }; |
| |
| static inline void |
| vl_video_buffer_adjust_size(unsigned *width, unsigned *height, unsigned plane, |
| enum pipe_video_chroma_format chroma_format, |
| bool interlaced) |
| { |
| if (interlaced) { |
| *height /= 2; |
| } |
| if (plane > 0) { |
| if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) { |
| *width /= 2; |
| *height /= 2; |
| } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) { |
| *width /= 2; |
| } |
| } |
| } |
| |
| /** |
| * get subformats for each plane |
| */ |
| void |
| vl_get_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format, |
| enum pipe_format out_format[VL_NUM_COMPONENTS]); |
| |
| /** |
| * get YUV plane order |
| */ |
| const unsigned * |
| vl_video_buffer_plane_order(enum pipe_format format); |
| |
| /** |
| * get maximum size of video buffers |
| */ |
| unsigned |
| vl_video_buffer_max_size(struct pipe_screen *screen); |
| |
| /** |
| * check if video buffer format is supported for a codec/profile |
| * can be used as default implementation of screen->is_video_format_supported |
| */ |
| bool |
| vl_video_buffer_is_format_supported(struct pipe_screen *screen, |
| enum pipe_format format, |
| enum pipe_video_profile profile, |
| enum pipe_video_entrypoint entrypoint); |
| |
| /* |
| * set the associated data for the given video buffer |
| */ |
| void |
| vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf, |
| struct pipe_video_codec *vcodec, |
| void *associated_data, |
| void (*destroy_associated_data)(void *)); |
| |
| /* |
| * get the associated data for the given video buffer |
| */ |
| void * |
| vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf, |
| struct pipe_video_codec *vcodec); |
| |
| /** |
| * fill a resource template for the given plane |
| */ |
| void |
| vl_video_buffer_template(struct pipe_resource *templ, |
| const struct pipe_video_buffer *templat, |
| enum pipe_format resource_format, |
| unsigned depth, unsigned array_size, |
| unsigned usage, unsigned plane); |
| |
| /** |
| * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer |
| */ |
| struct pipe_video_buffer * |
| vl_video_buffer_create(struct pipe_context *pipe, |
| const struct pipe_video_buffer *templat); |
| |
| /** |
| * extended create function, gets depth, array_size, usage and formats for each plane seperately |
| */ |
| struct pipe_video_buffer * |
| vl_video_buffer_create_ex(struct pipe_context *pipe, |
| const struct pipe_video_buffer *templat, |
| const enum pipe_format resource_formats[VL_NUM_COMPONENTS], |
| unsigned depth, unsigned array_size, unsigned usage); |
| |
| /** |
| * even more extended create function, provide the pipe_resource for each plane |
| */ |
| struct pipe_video_buffer * |
| vl_video_buffer_create_ex2(struct pipe_context *pipe, |
| const struct pipe_video_buffer *templat, |
| struct pipe_resource *resources[VL_NUM_COMPONENTS]); |
| |
| /* Create pipe_video_buffer by using resource_create with planar formats. */ |
| struct pipe_video_buffer * |
| vl_video_buffer_create_as_resource(struct pipe_context *pipe, |
| const struct pipe_video_buffer *tmpl); |
| |
| #endif /* vl_video_buffer_h */ |