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vo_opengl: remove is_linear_rgb and clean up code

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This opportunity for refactoring was enabled by f3c84a3.
This commit is contained in:
Niklas Haas 2015-01-28 18:52:33 +01:00
parent 0a38d69ac0
commit 8d15f7583c
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GPG Key ID: 3BA77D4BFDB10BCE
2 changed files with 13 additions and 12 deletions
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3
video/csputils.h
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@ -70,7 +70,8 @@ enum mp_csp_prim {
enum mp_csp_trc {
MP_CSP_TRC_NONE,
MP_CSP_TRC_BT_1886,
MP_CSP_TRC_SRGB
MP_CSP_TRC_SRGB,
MP_CSP_TRC_LINEAR
};
// Any enum mp_csp_prim value is a valid index (except MP_CSP_PRIM_COUNT)

22
video/out/gl_video.c
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@ -1106,19 +1106,16 @@ static void compile_shaders(struct gl_video *p)
float input_gamma = 1.0;
float conv_gamma = 1.0;
bool is_linear_rgb = false;
if (p->image_desc.flags & MP_IMGFLAG_XYZ) {
bool is_xyz = p->image_desc.flags & MP_IMGFLAG_XYZ;
if (is_xyz) {
input_gamma *= 2.6;
// If we're using cms, we can treat it as proper linear input,
// otherwise we just scale back to 2.40 to match typical displays,
// as a reasonable approximation.
if (use_cms) {
is_linear_rgb = true;
} else {
if (!use_cms)
conv_gamma *= 1.0 / 2.40;
}
}
p->input_gamma = input_gamma;
@ -1133,11 +1130,14 @@ static void compile_shaders(struct gl_video *p)
// Linear light scaling is only enabled when either color correction
// option (3dlut or srgb) is enabled, otherwise scaling is done in the
// source space.
if (!is_linear_rgb && use_cms) {
// We just use the color level range to distinguish between PC
if (use_cms) {
// We use the color level range to distinguish between PC
// content like images, which are most likely sRGB, and TV content
// like movies, which are most likely BT.1886
if (p->image_params.colorlevels == MP_CSP_LEVELS_PC && !p->hwdec_active) {
// like movies, which are most likely BT.1886. XYZ input is always
// treated as linear.
if (is_xyz) {
gamma_fun = MP_CSP_TRC_LINEAR;
} else if (p->image_params.colorlevels == MP_CSP_LEVELS_PC && !p->hwdec_active) {
// FIXME: I don't know if hwdec sets the color levels to PC or not,
// but let's avoid the bug just in case.
gamma_fun = MP_CSP_TRC_SRGB;
@ -1146,7 +1146,7 @@ static void compile_shaders(struct gl_video *p)
}
}
bool use_linear_light = gamma_fun != MP_CSP_TRC_NONE || is_linear_rgb;
bool use_linear_light = gamma_fun != MP_CSP_TRC_NONE;
// Optionally transform to sigmoidal color space if requested, but only
// when upscaling in linear light