Adding upstream version 0.37.0.upstream/0.37.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/video/zimg.h b/video/zimg.h
new file mode 100644
index 0000000..be018ca
--- /dev/null
+++ b/video/zimg.h
@@ -0,0 +1,73 @@
+#pragma once
+
+#include <stdbool.h>
+
+#include <zimg.h>
+
+#include "mp_image.h"
+
+#define ZIMG_ALIGN 64
+
+struct mpv_global;
+
+bool mp_zimg_supports_in_format(int imgfmt);
+bool mp_zimg_supports_out_format(int imgfmt);
+
+struct zimg_opts {
+    int scaler;
+    double scaler_params[2];
+    int scaler_chroma;
+    double scaler_chroma_params[2];
+    int dither;
+    bool fast;
+    int threads;
+};
+
+extern const struct zimg_opts zimg_opts_defaults;
+
+struct mp_zimg_context {
+    // Can be set for verbose error printing.
+    struct mp_log *log;
+
+    // User configuration. Note: changing these requires calling mp_zimg_config()
+    // to update the filter graph. The first mp_zimg_convert() call (or if the
+    // image format changes) will do this automatically.
+    struct zimg_opts opts;
+
+    // Input/output parameters. Note: if these mismatch with the
+    // mp_zimg_convert() parameters, mp_zimg_config() will be called
+    // automatically.
+    struct mp_image_params src, dst;
+
+    // Cached zimg state (if any). Private, do not touch.
+    struct m_config_cache *opts_cache;
+    struct mp_zimg_state **states;
+    int num_states;
+    struct mp_thread_pool *tp;
+    int current_thread_count;
+};
+
+// Allocate a zimg context. Always succeeds. Returns a talloc pointer (use
+// talloc_free() to release it).
+struct mp_zimg_context *mp_zimg_alloc(void);
+
+// Enable auto-update of parameters from command line. Don't try to set custom
+// options (other than possibly .src/.dst), because they might be overwritten
+// if the user changes any options.
+void mp_zimg_enable_cmdline_opts(struct mp_zimg_context *ctx,
+                                 struct mpv_global *g);
+
+// Try to build the conversion chain using the parameters currently set in ctx.
+// If this succeeds, mp_zimg_convert() will always succeed (probably), as long
+// as the input has the same parameters.
+// Returns false on error.
+bool mp_zimg_config(struct mp_zimg_context *ctx);
+
+// Similar to mp_zimg_config(), but assume none of the user parameters changed,
+// except possibly .src and .dst. This essentially checks whether src/dst
+// changed, and if so, calls mp_zimg_config().
+bool mp_zimg_config_image_params(struct mp_zimg_context *ctx);
+
+// Convert/scale src to dst. On failure, the data in dst is not touched.
+bool mp_zimg_convert(struct mp_zimg_context *ctx, struct mp_image *dst,
+                     struct mp_image *src);