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178 lines
7 KiB
C
178 lines
7 KiB
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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/*
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[title]
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SDL2 video format conversions
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[title]
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*/
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#include <SDL2/SDL.h>
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#include <spa/utils/type.h>
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#include <spa/pod/builder.h>
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#include <spa/param/video/raw.h>
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#include <spa/param/video/format.h>
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static struct {
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Uint32 format;
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uint32_t id;
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} sdl_video_formats[] = {
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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{ SDL_PIXELFORMAT_UNKNOWN, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_UNKNOWN, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1MSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX4LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX4MSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX8, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB332, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGR555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ARGB4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ABGR4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGRA4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ARGB1555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA5551, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ABGR1555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGRA5551, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB565, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGR565, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB24, SPA_VIDEO_FORMAT_RGB,},
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{ SDL_PIXELFORMAT_RGB888, SPA_VIDEO_FORMAT_RGB,},
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{ SDL_PIXELFORMAT_RGBX8888, SPA_VIDEO_FORMAT_RGBx,},
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{ SDL_PIXELFORMAT_BGR24, SPA_VIDEO_FORMAT_BGR,},
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{ SDL_PIXELFORMAT_BGR888, SPA_VIDEO_FORMAT_BGR,},
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{ SDL_PIXELFORMAT_BGRX8888, SPA_VIDEO_FORMAT_BGRx,},
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{ SDL_PIXELFORMAT_ARGB2101010, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA8888, SPA_VIDEO_FORMAT_RGBA,},
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{ SDL_PIXELFORMAT_ARGB8888, SPA_VIDEO_FORMAT_ARGB,},
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{ SDL_PIXELFORMAT_BGRA8888, SPA_VIDEO_FORMAT_BGRA,},
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{ SDL_PIXELFORMAT_ABGR8888, SPA_VIDEO_FORMAT_ABGR,},
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{ SDL_PIXELFORMAT_YV12, SPA_VIDEO_FORMAT_YV12,},
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{ SDL_PIXELFORMAT_IYUV, SPA_VIDEO_FORMAT_I420,},
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{ SDL_PIXELFORMAT_YUY2, SPA_VIDEO_FORMAT_YUY2,},
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{ SDL_PIXELFORMAT_UYVY, SPA_VIDEO_FORMAT_UYVY,},
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{ SDL_PIXELFORMAT_YVYU, SPA_VIDEO_FORMAT_YVYU,},
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#if SDL_VERSION_ATLEAST(2,0,4)
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{ SDL_PIXELFORMAT_NV12, SPA_VIDEO_FORMAT_NV12,},
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{ SDL_PIXELFORMAT_NV21, SPA_VIDEO_FORMAT_NV21,},
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#endif
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#else
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{ SDL_PIXELFORMAT_UNKNOWN, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_UNKNOWN, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX1MSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX4LSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX4MSB, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_INDEX8, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB332, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGR555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ARGB4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ABGR4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGRA4444, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ARGB1555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA5551, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_ABGR1555, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGRA5551, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB565, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_BGR565, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGB24, SPA_VIDEO_FORMAT_BGR,},
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{ SDL_PIXELFORMAT_RGB888, SPA_VIDEO_FORMAT_BGR,},
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{ SDL_PIXELFORMAT_RGBX8888, SPA_VIDEO_FORMAT_xBGR,},
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{ SDL_PIXELFORMAT_BGR24, SPA_VIDEO_FORMAT_RGB,},
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{ SDL_PIXELFORMAT_BGR888, SPA_VIDEO_FORMAT_RGB,},
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{ SDL_PIXELFORMAT_BGRX8888, SPA_VIDEO_FORMAT_xRGB,},
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{ SDL_PIXELFORMAT_ARGB2101010, SPA_VIDEO_FORMAT_UNKNOWN,},
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{ SDL_PIXELFORMAT_RGBA8888, SPA_VIDEO_FORMAT_ABGR,},
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{ SDL_PIXELFORMAT_ARGB8888, SPA_VIDEO_FORMAT_BGRA,},
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{ SDL_PIXELFORMAT_BGRA8888, SPA_VIDEO_FORMAT_ARGB,},
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{ SDL_PIXELFORMAT_ABGR8888, SPA_VIDEO_FORMAT_RGBA,},
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{ SDL_PIXELFORMAT_YV12, SPA_VIDEO_FORMAT_YV12,},
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{ SDL_PIXELFORMAT_IYUV, SPA_VIDEO_FORMAT_I420,},
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{ SDL_PIXELFORMAT_YUY2, SPA_VIDEO_FORMAT_YUY2,},
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{ SDL_PIXELFORMAT_UYVY, SPA_VIDEO_FORMAT_UYVY,},
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{ SDL_PIXELFORMAT_YVYU, SPA_VIDEO_FORMAT_YVYU,},
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#if SDL_VERSION_ATLEAST(2,0,4)
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{ SDL_PIXELFORMAT_NV12, SPA_VIDEO_FORMAT_NV12,},
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{ SDL_PIXELFORMAT_NV21, SPA_VIDEO_FORMAT_NV21,},
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#endif
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#endif
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};
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static inline uint32_t sdl_format_to_id(Uint32 format)
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{
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SPA_FOR_EACH_ELEMENT_VAR(sdl_video_formats, f) {
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if (f->format == format)
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return f->id;
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}
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return SPA_VIDEO_FORMAT_UNKNOWN;
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}
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static inline Uint32 id_to_sdl_format(uint32_t id)
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{
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SPA_FOR_EACH_ELEMENT_VAR(sdl_video_formats, f) {
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if (f->id == id)
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return f->format;
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}
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return SDL_PIXELFORMAT_UNKNOWN;
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}
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static inline struct spa_pod *sdl_build_formats(SDL_RendererInfo *info, struct spa_pod_builder *b)
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{
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uint32_t i, c;
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struct spa_pod_frame f[2];
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/* make an object of type SPA_TYPE_OBJECT_Format and id SPA_PARAM_EnumFormat.
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* The object type is important because it defines the properties that are
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* acceptable. The id gives more context about what the object is meant to
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* contain. In this case we enumerate supported formats. */
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spa_pod_builder_push_object(b, &f[0], SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat);
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/* add media type and media subtype properties */
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spa_pod_builder_prop(b, SPA_FORMAT_mediaType, 0);
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spa_pod_builder_id(b, SPA_MEDIA_TYPE_video);
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spa_pod_builder_prop(b, SPA_FORMAT_mediaSubtype, 0);
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spa_pod_builder_id(b, SPA_MEDIA_SUBTYPE_raw);
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/* build an enumeration of formats */
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spa_pod_builder_prop(b, SPA_FORMAT_VIDEO_format, 0);
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spa_pod_builder_push_choice(b, &f[1], SPA_CHOICE_Enum, 0);
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/* first the formats supported by the textures */
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for (i = 0, c = 0; i < info->num_texture_formats; i++) {
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uint32_t id = sdl_format_to_id(info->texture_formats[i]);
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if (id == 0)
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continue;
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if (c++ == 0)
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spa_pod_builder_id(b, id);
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spa_pod_builder_id(b, id);
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}
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/* then all the other ones SDL can convert from/to */
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SPA_FOR_EACH_ELEMENT_VAR(sdl_video_formats, f) {
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uint32_t id = f->id;
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if (id != SPA_VIDEO_FORMAT_UNKNOWN)
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spa_pod_builder_id(b, id);
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}
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spa_pod_builder_id(b, SPA_VIDEO_FORMAT_RGBA_F32);
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spa_pod_builder_pop(b, &f[1]);
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/* add size and framerate ranges */
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spa_pod_builder_add(b,
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SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle(
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&SPA_RECTANGLE(WIDTH, HEIGHT),
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&SPA_RECTANGLE(1,1),
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&SPA_RECTANGLE(info->max_texture_width,
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info->max_texture_height)),
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SPA_FORMAT_VIDEO_framerate, SPA_POD_CHOICE_RANGE_Fraction(
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&SPA_FRACTION(25,1),
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&SPA_FRACTION(0,1),
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&SPA_FRACTION(30,1)),
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0);
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return spa_pod_builder_pop(b, &f[0]);
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}
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