/src/mpv/video/out/gpu/utils.h

Source
#pragma once

#include <stdbool.h>
#include <math.h>

#include "ra.h"
#include "context.h"

// A 3x2 matrix, with the translation part separate.
struct gl_transform {
    // row-major, e.g. in mathematical notation:
    //  | m[0][0] m[0][1] |
    //  | m[1][0] m[1][1] |
    float m[2][2];
    float t[2];
};

static const struct gl_transform identity_trans = {
    .m = {{1.0, 0.0}, {0.0, 1.0}},
    .t = {0.0, 0.0},
};

void gl_transform_ortho(struct gl_transform *t, float x0, float x1,
                        float y0, float y1);

// This treats m as an affine transformation, in other words m[2][n] gets
// added to the output.
static inline void gl_transform_vec(struct gl_transform t, float *x, float *y)
{
    float vx = *x, vy = *y;
    *x = vx * t.m[0][0] + vy * t.m[0][1] + t.t[0];
    *y = vx * t.m[1][0] + vy * t.m[1][1] + t.t[1];
}

struct mp_rect_f {
    float x0, y0, x1, y1;
};

// Semantic equality (fuzzy comparison)
static inline bool mp_rect_f_seq(struct mp_rect_f a, struct mp_rect_f b)
{
    return fabs(a.x0 - b.x0) < 1e-6 && fabs(a.x1 - b.x1) < 1e-6 &&
           fabs(a.y0 - b.y0) < 1e-6 && fabs(a.y1 - b.y1) < 1e-6;
}

static inline void gl_transform_rect(struct gl_transform t, struct mp_rect_f *r)
{
    gl_transform_vec(t, &r->x0, &r->y0);
    gl_transform_vec(t, &r->x1, &r->y1);
}

static inline bool gl_transform_eq(struct gl_transform a, struct gl_transform b)
{
    for (int x = 0; x < 2; x++) {
        for (int y = 0; y < 2; y++) {
            if (a.m[x][y] != b.m[x][y])
                return false;
        }
    }

    return a.t[0] == b.t[0] && a.t[1] == b.t[1];
}

void gl_transform_trans(struct gl_transform t, struct gl_transform *x);

void gl_transform_ortho_fbo(struct gl_transform *t, const struct ra_fbo *fbo);

double gl_video_scale_ambient_lux(float lmin, float lmax,
                                  float rmin, float rmax, double lux);

// A pool of buffers, which can grow as needed
struct ra_buf_pool {
    struct ra_buf_params current_params;
    struct ra_buf **buffers;
    int num_buffers;
    int index;
};

void ra_buf_pool_uninit(struct ra *ra, struct ra_buf_pool *pool);

// Note: params->initial_data is *not* supported
struct ra_buf *ra_buf_pool_get(struct ra *ra, struct ra_buf_pool *pool,
                               const struct ra_buf_params *params);

// Helper that wraps ra_tex_upload using texture upload buffers to ensure that
// params->buf is always set. This is intended for RA-internal usage.
bool ra_tex_upload_pbo(struct ra *ra, struct ra_buf_pool *pbo,
                       const struct ra_tex_upload_params *params);

// Layout rules for GLSL's packing modes
struct ra_layout std140_layout(struct ra_renderpass_input *inp);
struct ra_layout std430_layout(struct ra_renderpass_input *inp);

bool ra_tex_resize(struct ra *ra, struct mp_log *log, struct ra_tex **tex,
                   int w, int h, const struct ra_format *fmt);

// A wrapper around ra_timer that does result pooling, averaging etc.
struct timer_pool;

struct timer_pool *timer_pool_create(struct ra *ra);
void timer_pool_destroy(struct timer_pool *pool);
void timer_pool_start(struct timer_pool *pool);
void timer_pool_stop(struct timer_pool *pool);
struct mp_pass_perf timer_pool_measure(struct timer_pool *pool);

// print a multi line string with line numbers (e.g. for shader sources)
// log, lev: module and log level, as in mp_msg()
void mp_log_source(struct mp_log *log, int lev, const char *src);

Line	Count	Source
1		#pragma once
2
3		#include <stdbool.h>
4		#include <math.h>
5
6		#include "ra.h"
7		#include "context.h"
8
9		// A 3x2 matrix, with the translation part separate.
10		struct gl_transform {
11		// row-major, e.g. in mathematical notation:
12		// \| m[0][0] m[0][1] \|
13		// \| m[1][0] m[1][1] \|
14		float m[2][2];
15		float t[2];
16		};
17
18		static const struct gl_transform identity_trans = {
19		.m = {{1.0, 0.0}, {0.0, 1.0}},
20		.t = {0.0, 0.0},
21		};
22
23		void gl_transform_ortho(struct gl_transform *t, float x0, float x1,
24		float y0, float y1);
25
26		// This treats m as an affine transformation, in other words m[2][n] gets
27		// added to the output.
28		static inline void gl_transform_vec(struct gl_transform t, float x, float y)
29	0	{
30	0	float vx = x, vy = y;
31	0	x = vx t.m[0][0] + vy * t.m[0][1] + t.t[0];
32	0	y = vx t.m[1][0] + vy * t.m[1][1] + t.t[1];
33	0	} Unexecuted instantiation: vo_gpu.c:gl_transform_vec Unexecuted instantiation: vo_gpu_next.c:gl_transform_vec Unexecuted instantiation: context.c:gl_transform_vec Unexecuted instantiation: ra_gl.c:gl_transform_vec Unexecuted instantiation: utils.c:gl_transform_vec Unexecuted instantiation: libmpv_gpu.c:gl_transform_vec Unexecuted instantiation: video.c:gl_transform_vec Unexecuted instantiation: video_shaders.c:gl_transform_vec Unexecuted instantiation: libmpv_gl.c:gl_transform_vec Unexecuted instantiation: osd.c:gl_transform_vec Unexecuted instantiation: shader_cache.c:gl_transform_vec Unexecuted instantiation: user_shaders.c:gl_transform_vec Unexecuted instantiation: common.c:gl_transform_vec
34
35		struct mp_rect_f {
36		float x0, y0, x1, y1;
37		};
38
39		// Semantic equality (fuzzy comparison)
40		static inline bool mp_rect_f_seq(struct mp_rect_f a, struct mp_rect_f b)
41	0	{
42	0	return fabs(a.x0 - b.x0) < 1e-6 && fabs(a.x1 - b.x1) < 1e-6 &&
43	0	fabs(a.y0 - b.y0) < 1e-6 && fabs(a.y1 - b.y1) < 1e-6;
44	0	} Unexecuted instantiation: vo_gpu.c:mp_rect_f_seq Unexecuted instantiation: vo_gpu_next.c:mp_rect_f_seq Unexecuted instantiation: context.c:mp_rect_f_seq Unexecuted instantiation: ra_gl.c:mp_rect_f_seq Unexecuted instantiation: utils.c:mp_rect_f_seq Unexecuted instantiation: libmpv_gpu.c:mp_rect_f_seq Unexecuted instantiation: video.c:mp_rect_f_seq Unexecuted instantiation: video_shaders.c:mp_rect_f_seq Unexecuted instantiation: libmpv_gl.c:mp_rect_f_seq Unexecuted instantiation: osd.c:mp_rect_f_seq Unexecuted instantiation: shader_cache.c:mp_rect_f_seq Unexecuted instantiation: user_shaders.c:mp_rect_f_seq Unexecuted instantiation: common.c:mp_rect_f_seq
45
46		static inline void gl_transform_rect(struct gl_transform t, struct mp_rect_f *r)
47	0	{
48	0	gl_transform_vec(t, &r->x0, &r->y0);
49	0	gl_transform_vec(t, &r->x1, &r->y1);
50	0	} Unexecuted instantiation: vo_gpu.c:gl_transform_rect Unexecuted instantiation: vo_gpu_next.c:gl_transform_rect Unexecuted instantiation: context.c:gl_transform_rect Unexecuted instantiation: ra_gl.c:gl_transform_rect Unexecuted instantiation: utils.c:gl_transform_rect Unexecuted instantiation: libmpv_gpu.c:gl_transform_rect Unexecuted instantiation: video.c:gl_transform_rect Unexecuted instantiation: video_shaders.c:gl_transform_rect Unexecuted instantiation: libmpv_gl.c:gl_transform_rect Unexecuted instantiation: osd.c:gl_transform_rect Unexecuted instantiation: shader_cache.c:gl_transform_rect Unexecuted instantiation: user_shaders.c:gl_transform_rect Unexecuted instantiation: common.c:gl_transform_rect
51
52		static inline bool gl_transform_eq(struct gl_transform a, struct gl_transform b)
53	0	{
54	0	for (int x = 0; x < 2; x++) {
55	0	for (int y = 0; y < 2; y++) {
56	0	if (a.m[x][y] != b.m[x][y])
57	0	return false;
58	0	}
59	0	}
60
61	0	return a.t[0] == b.t[0] && a.t[1] == b.t[1];
62	0	} Unexecuted instantiation: vo_gpu.c:gl_transform_eq Unexecuted instantiation: vo_gpu_next.c:gl_transform_eq Unexecuted instantiation: context.c:gl_transform_eq Unexecuted instantiation: ra_gl.c:gl_transform_eq Unexecuted instantiation: utils.c:gl_transform_eq Unexecuted instantiation: libmpv_gpu.c:gl_transform_eq Unexecuted instantiation: video.c:gl_transform_eq Unexecuted instantiation: video_shaders.c:gl_transform_eq Unexecuted instantiation: libmpv_gl.c:gl_transform_eq Unexecuted instantiation: osd.c:gl_transform_eq Unexecuted instantiation: shader_cache.c:gl_transform_eq Unexecuted instantiation: user_shaders.c:gl_transform_eq Unexecuted instantiation: common.c:gl_transform_eq
63
64		void gl_transform_trans(struct gl_transform t, struct gl_transform *x);
65
66		void gl_transform_ortho_fbo(struct gl_transform t, const struct ra_fbo fbo);
67
68		double gl_video_scale_ambient_lux(float lmin, float lmax,
69		float rmin, float rmax, double lux);
70
71		// A pool of buffers, which can grow as needed
72		struct ra_buf_pool {
73		struct ra_buf_params current_params;
74		struct ra_buf **buffers;
75		int num_buffers;
76		int index;
77		};
78
79		void ra_buf_pool_uninit(struct ra ra, struct ra_buf_pool pool);
80
81		// Note: params->initial_data is not supported
82		struct ra_buf ra_buf_pool_get(struct ra ra, struct ra_buf_pool *pool,
83		const struct ra_buf_params *params);
84
85		// Helper that wraps ra_tex_upload using texture upload buffers to ensure that
86		// params->buf is always set. This is intended for RA-internal usage.
87		bool ra_tex_upload_pbo(struct ra ra, struct ra_buf_pool pbo,
88		const struct ra_tex_upload_params *params);
89
90		// Layout rules for GLSL's packing modes
91		struct ra_layout std140_layout(struct ra_renderpass_input *inp);
92		struct ra_layout std430_layout(struct ra_renderpass_input *inp);
93
94		bool ra_tex_resize(struct ra ra, struct mp_log log, struct ra_tex **tex,
95		int w, int h, const struct ra_format *fmt);
96
97		// A wrapper around ra_timer that does result pooling, averaging etc.
98		struct timer_pool;
99
100		struct timer_pool timer_pool_create(struct ra ra);
101		void timer_pool_destroy(struct timer_pool *pool);
102		void timer_pool_start(struct timer_pool *pool);
103		void timer_pool_stop(struct timer_pool *pool);
104		struct mp_pass_perf timer_pool_measure(struct timer_pool *pool);
105
106		// print a multi line string with line numbers (e.g. for shader sources)
107		// log, lev: module and log level, as in mp_msg()
108		void mp_log_source(struct mp_log log, int lev, const char src);

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Created: 2026-01-26 07:36