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gpu: prefer 16bit floating point FBO formats to 16bit integer ones

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According to earlier discussions, this can improve visual quality.
This only changes the preferred order of the formats, not the
formats themselves.
This commit is contained in:
Jan Ekström 2018-05-31 23:46:08 +03:00
parent 93ec08cc7f
commit 1a893e8257
2 changed files with 7 additions and 4 deletions
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9
DOCS/man/options.rst
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@ -5005,9 +5005,12 @@ The following video options are currently all specific to ``--vo=gpu`` and
Selects the internal format of textures used for FBOs. The format can
influence performance and quality of the video output. ``fmt`` can be one
of: rgb8, rgb10, rgb10_a2, rgb16, rgb16f, rgb32f, rgba12, rgba16, rgba16f,
rgba16hf, rgba32f. Default: ``auto``, which maps to rgba16 on desktop GL,
and rgba16f or rgb10_a2 on GLES (e.g. ANGLE), unless GL_EXT_texture_norm16
is available.
rgba16hf, rgba32f.
Default: ``auto``, which first attempts to utilize 16bit float
(rgba16f, rgba16hf), and falls back to rgba16 if those are not available.
Finally, attempts to utilize rgb10_a2 or rgba8 if all of the previous formats
are not available.
``--gamma-factor=<0.1..2.0>``
Set an additional raw gamma factor (default: 1.0). If gamma is adjusted in

2
video/out/gpu/video.c
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@ -3519,7 +3519,7 @@ static void check_gl_features(struct gl_video *p)
bool have_ssbo = ra->caps & RA_CAP_BUF_RW;
bool have_fragcoord = ra->caps & RA_CAP_FRAGCOORD;
const char *auto_fbo_fmts[] = {"rgba16", "rgba16f", "rgba16hf",
const char *auto_fbo_fmts[] = {"rgba16f", "rgba16hf", "rgba16",
"rgb10_a2", "rgba8", 0};
const char *user_fbo_fmts[] = {p->opts.fbo_format, 0};
const char **fbo_fmts = user_fbo_fmts[0] && strcmp(user_fbo_fmts[0], "auto")