mirror of
https://github.com/mpv-player/mpv
synced 2025-01-10 00:49:32 +00:00
1da53248ab
This was needlessly complicated and prone to breakage, because even the references to the ring buffer could end up getting invalidated and containing garbage data on e.g. shader cache flush. For much the same reason why we can't keep around the *timer_pool, we're also forced to hard-copy the entire sample buffer per pass per frame. Not a huge deal, though. This is, what, a few kB per frame? We have more pressing CPU performance concerns anyway. Also simplified/fixed some other code.
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
#pragma once
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#include <stdbool.h>
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#include <math.h>
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#include "video/out/vo.h"
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#include "ra.h"
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// A 3x2 matrix, with the translation part separate.
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struct gl_transform {
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// row-major, e.g. in mathematical notation:
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// | m[0][0] m[0][1] |
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// | m[1][0] m[1][1] |
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float m[2][2];
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float t[2];
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};
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static const struct gl_transform identity_trans = {
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.m = {{1.0, 0.0}, {0.0, 1.0}},
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.t = {0.0, 0.0},
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};
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void gl_transform_ortho(struct gl_transform *t, float x0, float x1,
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float y0, float y1);
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// This treats m as an affine transformation, in other words m[2][n] gets
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// added to the output.
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static inline void gl_transform_vec(struct gl_transform t, float *x, float *y)
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{
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float vx = *x, vy = *y;
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*x = vx * t.m[0][0] + vy * t.m[0][1] + t.t[0];
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*y = vx * t.m[1][0] + vy * t.m[1][1] + t.t[1];
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}
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struct mp_rect_f {
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float x0, y0, x1, y1;
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};
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// Semantic equality (fuzzy comparison)
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static inline bool mp_rect_f_seq(struct mp_rect_f a, struct mp_rect_f b)
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{
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return fabs(a.x0 - b.x0) < 1e-6 && fabs(a.x1 - b.x1) < 1e-6 &&
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fabs(a.y0 - b.y0) < 1e-6 && fabs(a.y1 - b.y1) < 1e-6;
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}
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static inline void gl_transform_rect(struct gl_transform t, struct mp_rect_f *r)
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{
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gl_transform_vec(t, &r->x0, &r->y0);
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gl_transform_vec(t, &r->x1, &r->y1);
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}
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static inline bool gl_transform_eq(struct gl_transform a, struct gl_transform b)
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{
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for (int x = 0; x < 2; x++) {
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for (int y = 0; y < 2; y++) {
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if (a.m[x][y] != b.m[x][y])
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return false;
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}
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}
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return a.t[0] == b.t[0] && a.t[1] == b.t[1];
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}
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void gl_transform_trans(struct gl_transform t, struct gl_transform *x);
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struct fbodst {
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struct ra_tex *tex;
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bool flip; // mirror vertically
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};
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void gl_transform_ortho_fbodst(struct gl_transform *t, struct fbodst fbo);
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// A pool of buffers, which can grow as needed
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struct ra_buf_pool {
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struct ra_buf_params current_params;
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struct ra_buf **buffers;
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int num_buffers;
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int index;
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};
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void ra_buf_pool_uninit(struct ra *ra, struct ra_buf_pool *pool);
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// Note: params->initial_data is *not* supported
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struct ra_buf *ra_buf_pool_get(struct ra *ra, struct ra_buf_pool *pool,
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const struct ra_buf_params *params);
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// Helper that wraps ra_tex_upload using texture upload buffers to ensure that
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// params->buf is always set. This is intended for RA-internal usage.
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bool ra_tex_upload_pbo(struct ra *ra, struct ra_buf_pool *pbo,
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const struct ra_tex_upload_params *params);
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struct fbotex {
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struct ra *ra;
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struct ra_tex *tex;
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int lw, lh; // logical (configured) size, <= than texture size
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struct fbodst fbo;
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};
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void fbotex_uninit(struct fbotex *fbo);
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bool fbotex_change(struct fbotex *fbo, struct ra *ra, struct mp_log *log,
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int w, int h, const struct ra_format *fmt, int flags);
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#define FBOTEX_FUZZY_W 1
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#define FBOTEX_FUZZY_H 2
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#define FBOTEX_FUZZY (FBOTEX_FUZZY_W | FBOTEX_FUZZY_H)
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// A wrapper around ra_timer that does result pooling, averaging etc.
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struct timer_pool;
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struct timer_pool *timer_pool_create(struct ra *ra);
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void timer_pool_destroy(struct timer_pool *pool);
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void timer_pool_start(struct timer_pool *pool);
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void timer_pool_stop(struct timer_pool *pool);
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struct mp_pass_perf timer_pool_measure(struct timer_pool *pool);
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// print a multi line string with line numbers (e.g. for shader sources)
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// log, lev: module and log level, as in mp_msg()
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void mp_log_source(struct mp_log *log, int lev, const char *src);
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