1 files changed, 41 insertions, 3 deletions

diff --git a/video/out/opengl/video.c b/video/out/opengl/video.c
index 8d6776ce0e..45528d138a 100644
--- a/video/out/opengl/video.c
+++ b/video/out/opengl/video.c
@@ -37,6 +37,7 @@
 #include "utils.h"
 #include "hwdec.h"
 #include "osd.h"
+#include "stream/stream.h"
 #include "video_shaders.h"
 #include "video/out/filter_kernels.h"
 #include "video/out/aspect.h"
@@ -118,6 +119,11 @@ struct src_tex {
     struct mp_rect_f src;
 };
 
+struct cached_file {
+    char *path;
+    char *body;
+};
+
 struct gl_video {
     GL *gl;
 
@@ -197,6 +203,9 @@ struct gl_video {
     int last_dither_matrix_size;
     float *last_dither_matrix;
 
+    struct cached_file files[10];
+    int num_files;
+
     struct gl_hwdec *hwdec;
     bool hwdec_active;
 };
@@ -472,6 +481,35 @@ static const struct fmt_entry *find_tex_format(GL *gl, int bytes_per_comp,
     return &fmts[n_channels - 1 + (bytes_per_comp - 1) * 4];
 }
 
+static const char *load_cached_file(struct gl_video *p, const char *path)
+{
+    if (!path || !path[0])
+        return NULL;
+    for (int n = 0; n < p->num_files; n++) {
+        if (strcmp(p->files[n].path, path) == 0)
+            return p->files[n].body;
+    }
+    // not found -> load it
+    if (p->num_files == MP_ARRAY_SIZE(p->files)) {
+        // empty cache when it overflows
+        for (int n = 0; n < p->num_files; n++) {
+            talloc_free(p->files[n].path);
+            talloc_free(p->files[n].body);
+        }
+        p->num_files = 0;
+    }
+    struct bstr s = stream_read_file(path, p, p->global, 100000); // 100 kB
+    if (s.len) {
+        struct cached_file *new = &p->files[p->num_files++];
+        *new = (struct cached_file) {
+            .path = talloc_strdup(p, path),
+            .body = s.start
+        };
+        return new->body;
+    }
+    return NULL;
+}
+
 static void debug_check_gl(struct gl_video *p, const char *msg)
 {
     if (p->gl_debug)
@@ -868,7 +906,7 @@ static bool apply_shaders(struct gl_video *p, char **shaders,
     bool success = false;
     int tex = 0;
     for (int n = 0; shaders[n]; n++) {
-        const char *body = gl_sc_loadfile(p->sc, shaders[n]);
+        const char *body = load_cached_file(p, shaders[n]);
         if (!body)
             continue;
         finish_pass_fbo(p, &textures[tex], w, h, tex_num, 0);
@@ -1067,7 +1105,7 @@ static void pass_sample(struct gl_video *p, int src_tex, struct scaler *scaler,
     } else if (strcmp(name, "oversample") == 0) {
         pass_sample_oversample(p->sc, scaler, w, h);
     } else if (strcmp(name, "custom") == 0) {
-        const char *body = gl_sc_loadfile(p->sc, p->opts.scale_shader);
+        const char *body = load_cached_file(p, p->opts.scale_shader);
         if (body) {
             load_shader(p, body);
             GLSLF("// custom scale-shader\n");
@@ -2390,7 +2428,7 @@ struct gl_video *gl_video_init(GL *gl, struct mp_log *log, struct mpv_global *g)
         .gl_target = GL_TEXTURE_2D,
         .texture_16bit_depth = 16,
         .scaler = {{.index = 0}, {.index = 1}, {.index = 2}, {.index = 3}},
-        .sc = gl_sc_create(gl, log, g),
+        .sc = gl_sc_create(gl, log),
     };
     gl_video_set_debug(p, true);
     init_gl(p);