mirror of https://github.com/mpv-player/mpv
57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
#ifndef MPGL_HWDEC_H_
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#define MPGL_HWDEC_H_
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#include "gl_common.h"
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#include "video/hwdec.h"
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struct mp_hwdec_info;
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struct gl_hwdec {
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const struct gl_hwdec_driver *driver;
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struct mp_log *log;
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GL *gl;
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struct mp_hwdec_info *info;
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// For free use by hwdec driver
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void *priv;
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// hwdec backends must set this to an IMGFMT_ that has an equivalent
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// internal representation in gl_video.c as the hardware texture.
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// It's used to build the rendering chain, and also as screenshot format.
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int converted_imgfmt;
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// Normally this is GL_TEXTURE_2D, but the hwdec driver can set it to
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// GL_TEXTURE_RECTANGLE.
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GLenum gl_texture_target;
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};
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struct gl_hwdec_driver {
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// Same name as used by mp_hwdec_info->load_api()
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const char *api_name;
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// The hardware surface IMGFMT_ that must be passed to map_image later.
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int imgfmt;
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// Create the hwdec device. It must fill in hw->info, if applicable.
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// This also must set hw->converted_imgfmt.
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int (*create)(struct gl_hwdec *hw);
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// Prepare for rendering video. (E.g. create textures.)
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// Called on initialization, and every time the video size changes.
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int (*reinit)(struct gl_hwdec *hw, const struct mp_image_params *params);
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// Return textures that contain the given hw_image.
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// Note that the caller keeps a reference to hw_image until unmap_image
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// is called, so the hwdec driver doesn't need to do that.
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int (*map_image)(struct gl_hwdec *hw, struct mp_image *hw_image,
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GLuint *out_textures);
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// Undo map_image(). The user of map_image() calls this when the textures
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// are not needed anymore.
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void (*unmap_image)(struct gl_hwdec *hw);
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// Return a mp_image downloaded from the GPU (optional)
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struct mp_image *(*download_image)(struct gl_hwdec *hw,
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struct mp_image *hw_image);
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void (*destroy)(struct gl_hwdec *hw);
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};
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struct gl_hwdec *gl_hwdec_load_api(struct mp_log *log, GL *gl,
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const char *api_name,
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struct mp_hwdec_info *info);
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void gl_hwdec_uninit(struct gl_hwdec *hwdec);
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#endif
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