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https://github.com/mpv-player/mpv
synced 2025-03-01 11:50:48 +00:00
vo: move vo_get_src_dst_rects to aspect.c
The plan is to make all the code in aspect.c independent from vo.c, which should make the code easier to understand, will allow removal of vo->aspdat, and reduces the amount of code that accesses weird mutable struct vo fields.
This commit is contained in:
wm4
parent
4de73fd5c1
commit
0f2acd4a80
@ -25,6 +25,7 @@
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#include "options/options.h"
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#include "vo.h"
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#include "sub/osd.h"
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void aspect_save_videores(struct vo *vo, int w, int h, int d_w, int d_h)
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{
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@ -75,3 +76,132 @@ void aspect_calc_panscan(struct vo *vo, int *out_w, int *out_h)
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*out_w = fwidth + vo_panscan_area * opts->panscan * fwidth / fheight;
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*out_h = fheight + vo_panscan_area * opts->panscan;
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}
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static void print_video_rect(struct vo *vo, struct mp_rect src,
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struct mp_rect dst, struct mp_osd_res osd)
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{
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int sw = src.x1 - src.x0, sh = src.y1 - src.y0;
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int dw = dst.x1 - dst.x0, dh = dst.y1 - dst.y0;
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MP_VERBOSE(&vo->vo_log, "Window size: %dx%d\n",
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vo->dwidth, vo->dheight);
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MP_VERBOSE(&vo->vo_log, "Video source: %dx%d (%dx%d)\n",
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vo->aspdat.orgw, vo->aspdat.orgh,
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vo->aspdat.prew, vo->aspdat.preh);
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MP_VERBOSE(&vo->vo_log, "Video display: (%d, %d) %dx%d -> (%d, %d) %dx%d\n",
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src.x0, src.y0, sw, sh, dst.x0, dst.y0, dw, dh);
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MP_VERBOSE(&vo->vo_log, "Video scale: %f/%f\n",
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(double)dw / sw, (double)dh / sh);
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MP_VERBOSE(&vo->vo_log, "OSD borders: l=%d t=%d r=%d b=%d\n",
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osd.ml, osd.mt, osd.mr, osd.mb);
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MP_VERBOSE(&vo->vo_log, "Video borders: l=%d t=%d r=%d b=%d\n",
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dst.x0, dst.y0, vo->dwidth - dst.x1, vo->dheight - dst.y1);
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}
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// Clamp [start, end) to range [0, size) with various fallbacks.
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static void clamp_size(int size, int *start, int *end)
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{
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*start = FFMAX(0, *start);
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*end = FFMIN(size, *end);
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if (*start >= *end) {
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*start = 0;
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*end = 1;
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}
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}
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// Round source to a multiple of 2, this is at least needed for vo_direct3d
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// and ATI cards.
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#define VID_SRC_ROUND_UP(x) (((x) + 1) & ~1)
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static void src_dst_split_scaling(int src_size, int dst_size,
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int scaled_src_size, bool unscaled,
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float zoom, float align, float pan,
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int *src_start, int *src_end,
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int *dst_start, int *dst_end,
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int *osd_margin_a, int *osd_margin_b)
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{
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if (unscaled) {
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scaled_src_size = src_size;
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zoom = 0.0;
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}
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scaled_src_size += zoom * scaled_src_size;
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align = (align + 1) / 2;
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*src_start = 0;
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*src_end = src_size;
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*dst_start = (dst_size - scaled_src_size) * align + pan * scaled_src_size;
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*dst_end = *dst_start + scaled_src_size;
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// Distance of screen frame to video
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*osd_margin_a = *dst_start;
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*osd_margin_b = dst_size - *dst_end;
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// Clip to screen
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int s_src = *src_end - *src_start;
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int s_dst = *dst_end - *dst_start;
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if (*dst_start < 0) {
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int border = -(*dst_start) * s_src / s_dst;
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*src_start += VID_SRC_ROUND_UP(border);
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*dst_start = 0;
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}
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if (*dst_end > dst_size) {
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int border = (*dst_end - dst_size) * s_src / s_dst;
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*src_end -= VID_SRC_ROUND_UP(border);
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*dst_end = dst_size;
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}
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if (unscaled) {
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// Force unscaled by reducing the range for src or dst
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int src_s = *src_end - *src_start;
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int dst_s = *dst_end - *dst_start;
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if (src_s > dst_s) {
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*src_end = *src_start + dst_s;
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} else if (src_s < dst_s) {
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*dst_end = *dst_start + src_s;
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}
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}
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// For sanity: avoid bothering VOs with corner cases
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clamp_size(src_size, src_start, src_end);
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clamp_size(dst_size, dst_start, dst_end);
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}
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// Calculate the appropriate source and destination rectangle to
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// get a correctly scaled picture, including pan-scan.
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// out_src: visible part of the video
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// out_dst: area of screen covered by the video source rectangle
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// out_osd: OSD size, OSD margins, etc.
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void vo_get_src_dst_rects(struct vo *vo, struct mp_rect *out_src,
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struct mp_rect *out_dst, struct mp_osd_res *out_osd)
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{
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struct mp_vo_opts *opts = vo->opts;
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int src_w = vo->aspdat.orgw;
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int src_h = vo->aspdat.orgh;
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struct mp_rect dst = {0, 0, vo->dwidth, vo->dheight};
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struct mp_rect src = {0, 0, src_w, src_h};
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struct mp_osd_res osd = {
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.w = vo->dwidth,
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.h = vo->dheight,
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.display_par = vo->monitor_par,
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};
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if (opts->keepaspect) {
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int scaled_width, scaled_height;
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aspect_calc_panscan(vo, &scaled_width, &scaled_height);
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src_dst_split_scaling(src_w, vo->dwidth, scaled_width, opts->unscaled,
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opts->zoom, opts->align_x, opts->pan_x,
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&src.x0, &src.x1, &dst.x0, &dst.x1,
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&osd.ml, &osd.mr);
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src_dst_split_scaling(src_h, vo->dheight, scaled_height, opts->unscaled,
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opts->zoom, opts->align_y, opts->pan_y,
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&src.y0, &src.y1, &dst.y0, &dst.y1,
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&osd.mt, &osd.mb);
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}
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*out_src = src;
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*out_dst = dst;
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*out_osd = osd;
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print_video_rect(vo, src, dst, osd);
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}
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128
video/out/vo.c
128
video/out/vo.c
@ -483,134 +483,6 @@ int lookup_keymap_table(const struct mp_keymap *map, int key) {
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return map->to;
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}
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static void print_video_rect(struct vo *vo, struct mp_rect src,
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struct mp_rect dst, struct mp_osd_res osd)
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{
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int sw = src.x1 - src.x0, sh = src.y1 - src.y0;
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int dw = dst.x1 - dst.x0, dh = dst.y1 - dst.y0;
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MP_VERBOSE(&vo->vo_log, "Window size: %dx%d\n",
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vo->dwidth, vo->dheight);
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MP_VERBOSE(&vo->vo_log, "Video source: %dx%d (%dx%d)\n",
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vo->aspdat.orgw, vo->aspdat.orgh,
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vo->aspdat.prew, vo->aspdat.preh);
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MP_VERBOSE(&vo->vo_log, "Video display: (%d, %d) %dx%d -> (%d, %d) %dx%d\n",
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src.x0, src.y0, sw, sh, dst.x0, dst.y0, dw, dh);
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MP_VERBOSE(&vo->vo_log, "Video scale: %f/%f\n",
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(double)dw / sw, (double)dh / sh);
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MP_VERBOSE(&vo->vo_log, "OSD borders: l=%d t=%d r=%d b=%d\n",
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osd.ml, osd.mt, osd.mr, osd.mb);
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MP_VERBOSE(&vo->vo_log, "Video borders: l=%d t=%d r=%d b=%d\n",
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dst.x0, dst.y0, vo->dwidth - dst.x1, vo->dheight - dst.y1);
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}
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// Clamp [start, end) to range [0, size) with various fallbacks.
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static void clamp_size(int size, int *start, int *end)
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{
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*start = FFMAX(0, *start);
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*end = FFMIN(size, *end);
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if (*start >= *end) {
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*start = 0;
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*end = 1;
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}
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}
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// Round source to a multiple of 2, this is at least needed for vo_direct3d
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// and ATI cards.
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#define VID_SRC_ROUND_UP(x) (((x) + 1) & ~1)
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static void src_dst_split_scaling(int src_size, int dst_size,
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int scaled_src_size, bool unscaled,
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float zoom, float align, float pan,
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int *src_start, int *src_end,
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int *dst_start, int *dst_end,
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int *osd_margin_a, int *osd_margin_b)
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{
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if (unscaled) {
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scaled_src_size = src_size;
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zoom = 0.0;
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}
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scaled_src_size += zoom * scaled_src_size;
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align = (align + 1) / 2;
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*src_start = 0;
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*src_end = src_size;
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*dst_start = (dst_size - scaled_src_size) * align + pan * scaled_src_size;
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*dst_end = *dst_start + scaled_src_size;
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// Distance of screen frame to video
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*osd_margin_a = *dst_start;
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*osd_margin_b = dst_size - *dst_end;
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// Clip to screen
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int s_src = *src_end - *src_start;
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int s_dst = *dst_end - *dst_start;
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if (*dst_start < 0) {
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int border = -(*dst_start) * s_src / s_dst;
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*src_start += VID_SRC_ROUND_UP(border);
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*dst_start = 0;
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}
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if (*dst_end > dst_size) {
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int border = (*dst_end - dst_size) * s_src / s_dst;
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*src_end -= VID_SRC_ROUND_UP(border);
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*dst_end = dst_size;
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}
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if (unscaled) {
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// Force unscaled by reducing the range for src or dst
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int src_s = *src_end - *src_start;
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int dst_s = *dst_end - *dst_start;
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if (src_s > dst_s) {
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*src_end = *src_start + dst_s;
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} else if (src_s < dst_s) {
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*dst_end = *dst_start + src_s;
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}
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}
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// For sanity: avoid bothering VOs with corner cases
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clamp_size(src_size, src_start, src_end);
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clamp_size(dst_size, dst_start, dst_end);
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}
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// Calculate the appropriate source and destination rectangle to
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// get a correctly scaled picture, including pan-scan.
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// out_src: visible part of the video
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// out_dst: area of screen covered by the video source rectangle
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// out_osd: OSD size, OSD margins, etc.
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void vo_get_src_dst_rects(struct vo *vo, struct mp_rect *out_src,
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struct mp_rect *out_dst, struct mp_osd_res *out_osd)
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{
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struct mp_vo_opts *opts = vo->opts;
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int src_w = vo->aspdat.orgw;
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int src_h = vo->aspdat.orgh;
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struct mp_rect dst = {0, 0, vo->dwidth, vo->dheight};
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struct mp_rect src = {0, 0, src_w, src_h};
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struct mp_osd_res osd = {
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.w = vo->dwidth,
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.h = vo->dheight,
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.display_par = vo->monitor_par,
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};
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if (opts->keepaspect) {
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int scaled_width, scaled_height;
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aspect_calc_panscan(vo, &scaled_width, &scaled_height);
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src_dst_split_scaling(src_w, vo->dwidth, scaled_width, opts->unscaled,
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opts->zoom, opts->align_x, opts->pan_x,
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&src.x0, &src.x1, &dst.x0, &dst.x1,
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&osd.ml, &osd.mr);
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src_dst_split_scaling(src_h, vo->dheight, scaled_height, opts->unscaled,
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opts->zoom, opts->align_y, opts->pan_y,
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&src.y0, &src.y1, &dst.y0, &dst.y1,
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&osd.mt, &osd.mb);
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}
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*out_src = src;
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*out_dst = dst;
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*out_osd = osd;
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print_video_rect(vo, src, dst, osd);
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}
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// Return the window title the VO should set. Always returns a null terminated
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// string. The string is valid until frontend code is invoked again. Copy it if
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// you need to keep the string for an extended period of time.
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