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-rw-r--r--video/out/gpu/video_shaders.c128
1 files changed, 65 insertions, 63 deletions
diff --git a/video/out/gpu/video_shaders.c b/video/out/gpu/video_shaders.c
index 6c0e8a8..e202818 100644
--- a/video/out/gpu/video_shaders.c
+++ b/video/out/gpu/video_shaders.c
@@ -17,6 +17,8 @@
#include <math.h>
+#include <libplacebo/colorspace.h>
+
#include "video_shaders.h"
#include "video.h"
@@ -252,7 +254,7 @@ void pass_compute_polar(struct gl_shader_cache *sc, struct scaler *scaler,
static void bicubic_calcweights(struct gl_shader_cache *sc, const char *t, const char *s)
{
// Explanation of how bicubic scaling with only 4 texel fetches is done:
- // http://www.mate.tue.nl/mate/pdfs/10318.pdf
+ // <https://web.archive.org/web/20180720154854/http://www.mate.tue.nl/mate/pdfs/10318.pdf>
// 'Efficient GPU-Based Texture Interpolation using Uniform B-Splines'
// Explanation why this algorithm normally always blurs, even with unit
// scaling:
@@ -337,10 +339,10 @@ static const float SLOG_A = 0.432699,
//
// These functions always output to a normalized scale of [0,1], for
// convenience of the video.c code that calls it. To get the values in an
-// absolute scale, multiply the result by `mp_trc_nom_peak(trc)`
-void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
+// absolute scale, multiply the result by `pl_color_transfer_nominal_peak(trc)`
+void pass_linearize(struct gl_shader_cache *sc, enum pl_color_transfer trc)
{
- if (trc == MP_CSP_TRC_LINEAR)
+ if (trc == PL_COLOR_TRC_LINEAR)
return;
GLSLF("// linearize\n");
@@ -353,40 +355,40 @@ void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
GLSL(color.rgb = clamp(color.rgb, 0.0, 1.0);)
switch (trc) {
- case MP_CSP_TRC_SRGB:
+ case PL_COLOR_TRC_SRGB:
GLSLF("color.rgb = mix(color.rgb * vec3(1.0/12.92), \n"
" pow((color.rgb + vec3(0.055))/vec3(1.055), vec3(2.4)), \n"
" %s(lessThan(vec3(0.04045), color.rgb))); \n",
gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_BT_1886:
+ case PL_COLOR_TRC_BT_1886:
GLSL(color.rgb = pow(color.rgb, vec3(2.4));)
break;
- case MP_CSP_TRC_GAMMA18:
+ case PL_COLOR_TRC_GAMMA18:
GLSL(color.rgb = pow(color.rgb, vec3(1.8));)
break;
- case MP_CSP_TRC_GAMMA20:
+ case PL_COLOR_TRC_GAMMA20:
GLSL(color.rgb = pow(color.rgb, vec3(2.0));)
break;
- case MP_CSP_TRC_GAMMA22:
+ case PL_COLOR_TRC_GAMMA22:
GLSL(color.rgb = pow(color.rgb, vec3(2.2));)
break;
- case MP_CSP_TRC_GAMMA24:
+ case PL_COLOR_TRC_GAMMA24:
GLSL(color.rgb = pow(color.rgb, vec3(2.4));)
break;
- case MP_CSP_TRC_GAMMA26:
+ case PL_COLOR_TRC_GAMMA26:
GLSL(color.rgb = pow(color.rgb, vec3(2.6));)
break;
- case MP_CSP_TRC_GAMMA28:
+ case PL_COLOR_TRC_GAMMA28:
GLSL(color.rgb = pow(color.rgb, vec3(2.8));)
break;
- case MP_CSP_TRC_PRO_PHOTO:
+ case PL_COLOR_TRC_PRO_PHOTO:
GLSLF("color.rgb = mix(color.rgb * vec3(1.0/16.0), \n"
" pow(color.rgb, vec3(1.8)), \n"
" %s(lessThan(vec3(0.03125), color.rgb))); \n",
gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_PQ:
+ case PL_COLOR_TRC_PQ:
GLSLF("color.rgb = pow(color.rgb, vec3(1.0/%f));\n", PQ_M2);
GLSLF("color.rgb = max(color.rgb - vec3(%f), vec3(0.0)) \n"
" / (vec3(%f) - vec3(%f) * color.rgb);\n",
@@ -396,33 +398,33 @@ void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
// MP_REF_WHITE instead, so rescale
GLSLF("color.rgb *= vec3(%f);\n", 10000 / MP_REF_WHITE);
break;
- case MP_CSP_TRC_HLG:
+ case PL_COLOR_TRC_HLG:
GLSLF("color.rgb = mix(vec3(4.0) * color.rgb * color.rgb,\n"
" exp((color.rgb - vec3(%f)) * vec3(1.0/%f)) + vec3(%f),\n"
" %s(lessThan(vec3(0.5), color.rgb)));\n",
HLG_C, HLG_A, HLG_B, gl_sc_bvec(sc, 3));
GLSLF("color.rgb *= vec3(1.0/%f);\n", MP_REF_WHITE_HLG);
break;
- case MP_CSP_TRC_V_LOG:
+ case PL_COLOR_TRC_V_LOG:
GLSLF("color.rgb = mix((color.rgb - vec3(0.125)) * vec3(1.0/5.6), \n"
" pow(vec3(10.0), (color.rgb - vec3(%f)) * vec3(1.0/%f)) \n"
" - vec3(%f), \n"
" %s(lessThanEqual(vec3(0.181), color.rgb))); \n",
VLOG_D, VLOG_C, VLOG_B, gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_S_LOG1:
+ case PL_COLOR_TRC_S_LOG1:
GLSLF("color.rgb = pow(vec3(10.0), (color.rgb - vec3(%f)) * vec3(1.0/%f))\n"
" - vec3(%f);\n",
SLOG_C, SLOG_A, SLOG_B);
break;
- case MP_CSP_TRC_S_LOG2:
+ case PL_COLOR_TRC_S_LOG2:
GLSLF("color.rgb = mix((color.rgb - vec3(%f)) * vec3(1.0/%f), \n"
" (pow(vec3(10.0), (color.rgb - vec3(%f)) * vec3(1.0/%f)) \n"
" - vec3(%f)) * vec3(1.0/%f), \n"
" %s(lessThanEqual(vec3(%f), color.rgb))); \n",
SLOG_Q, SLOG_P, SLOG_C, SLOG_A, SLOG_B, SLOG_K2, gl_sc_bvec(sc, 3), SLOG_Q);
break;
- case MP_CSP_TRC_ST428:
+ case PL_COLOR_TRC_ST428:
GLSL(color.rgb = vec3(52.37/48.0) * pow(color.rgb, vec3(2.6)););
break;
default:
@@ -430,7 +432,7 @@ void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
}
// Rescale to prevent clipping on non-float textures
- GLSLF("color.rgb *= vec3(1.0/%f);\n", mp_trc_nom_peak(trc));
+ GLSLF("color.rgb *= vec3(1.0/%f);\n", pl_color_transfer_nominal_peak(trc));
}
// Delinearize (compress), given a TRC as output. This corresponds to the
@@ -438,51 +440,51 @@ void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
// reference monitor.
//
// Like pass_linearize, this functions ingests values on an normalized scale
-void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
+void pass_delinearize(struct gl_shader_cache *sc, enum pl_color_transfer trc)
{
- if (trc == MP_CSP_TRC_LINEAR)
+ if (trc == PL_COLOR_TRC_LINEAR)
return;
GLSLF("// delinearize\n");
GLSL(color.rgb = clamp(color.rgb, 0.0, 1.0);)
- GLSLF("color.rgb *= vec3(%f);\n", mp_trc_nom_peak(trc));
+ GLSLF("color.rgb *= vec3(%f);\n", pl_color_transfer_nominal_peak(trc));
switch (trc) {
- case MP_CSP_TRC_SRGB:
+ case PL_COLOR_TRC_SRGB:
GLSLF("color.rgb = mix(color.rgb * vec3(12.92), \n"
" vec3(1.055) * pow(color.rgb, vec3(1.0/2.4)) \n"
" - vec3(0.055), \n"
" %s(lessThanEqual(vec3(0.0031308), color.rgb))); \n",
gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_BT_1886:
+ case PL_COLOR_TRC_BT_1886:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.4));)
break;
- case MP_CSP_TRC_GAMMA18:
+ case PL_COLOR_TRC_GAMMA18:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/1.8));)
break;
- case MP_CSP_TRC_GAMMA20:
+ case PL_COLOR_TRC_GAMMA20:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.0));)
break;
- case MP_CSP_TRC_GAMMA22:
+ case PL_COLOR_TRC_GAMMA22:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.2));)
break;
- case MP_CSP_TRC_GAMMA24:
+ case PL_COLOR_TRC_GAMMA24:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.4));)
break;
- case MP_CSP_TRC_GAMMA26:
+ case PL_COLOR_TRC_GAMMA26:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.6));)
break;
- case MP_CSP_TRC_GAMMA28:
+ case PL_COLOR_TRC_GAMMA28:
GLSL(color.rgb = pow(color.rgb, vec3(1.0/2.8));)
break;
- case MP_CSP_TRC_PRO_PHOTO:
+ case PL_COLOR_TRC_PRO_PHOTO:
GLSLF("color.rgb = mix(color.rgb * vec3(16.0), \n"
" pow(color.rgb, vec3(1.0/1.8)), \n"
" %s(lessThanEqual(vec3(0.001953), color.rgb))); \n",
gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_PQ:
+ case PL_COLOR_TRC_PQ:
GLSLF("color.rgb *= vec3(1.0/%f);\n", 10000 / MP_REF_WHITE);
GLSLF("color.rgb = pow(color.rgb, vec3(%f));\n", PQ_M1);
GLSLF("color.rgb = (vec3(%f) + vec3(%f) * color.rgb) \n"
@@ -490,32 +492,32 @@ void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc)
PQ_C1, PQ_C2, PQ_C3);
GLSLF("color.rgb = pow(color.rgb, vec3(%f));\n", PQ_M2);
break;
- case MP_CSP_TRC_HLG:
+ case PL_COLOR_TRC_HLG:
GLSLF("color.rgb *= vec3(%f);\n", MP_REF_WHITE_HLG);
GLSLF("color.rgb = mix(vec3(0.5) * sqrt(color.rgb),\n"
" vec3(%f) * log(color.rgb - vec3(%f)) + vec3(%f),\n"
" %s(lessThan(vec3(1.0), color.rgb)));\n",
HLG_A, HLG_B, HLG_C, gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_V_LOG:
+ case PL_COLOR_TRC_V_LOG:
GLSLF("color.rgb = mix(vec3(5.6) * color.rgb + vec3(0.125), \n"
" vec3(%f) * log(color.rgb + vec3(%f)) \n"
" + vec3(%f), \n"
" %s(lessThanEqual(vec3(0.01), color.rgb))); \n",
VLOG_C / M_LN10, VLOG_B, VLOG_D, gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_S_LOG1:
+ case PL_COLOR_TRC_S_LOG1:
GLSLF("color.rgb = vec3(%f) * log(color.rgb + vec3(%f)) + vec3(%f);\n",
SLOG_A / M_LN10, SLOG_B, SLOG_C);
break;
- case MP_CSP_TRC_S_LOG2:
+ case PL_COLOR_TRC_S_LOG2:
GLSLF("color.rgb = mix(vec3(%f) * color.rgb + vec3(%f), \n"
" vec3(%f) * log(vec3(%f) * color.rgb + vec3(%f)) \n"
" + vec3(%f), \n"
" %s(lessThanEqual(vec3(0.0), color.rgb))); \n",
SLOG_P, SLOG_Q, SLOG_A / M_LN10, SLOG_K2, SLOG_B, SLOG_C, gl_sc_bvec(sc, 3));
break;
- case MP_CSP_TRC_ST428:
+ case PL_COLOR_TRC_ST428:
GLSL(color.rgb = pow(color.rgb * vec3(48.0/52.37), vec3(1.0/2.6)););
break;
default:
@@ -834,42 +836,42 @@ static void pass_tone_map(struct gl_shader_cache *sc,
// the caller to have already bound the appropriate SSBO and set up the compute
// shader metadata
void pass_color_map(struct gl_shader_cache *sc, bool is_linear,
- struct mp_colorspace src, struct mp_colorspace dst,
+ struct pl_color_space src, struct pl_color_space dst,
+ enum mp_csp_light src_light, enum mp_csp_light dst_light,
const struct gl_tone_map_opts *opts)
{
GLSLF("// color mapping\n");
// Some operations need access to the video's luma coefficients, so make
// them available
- float rgb2xyz[3][3];
- mp_get_rgb2xyz_matrix(mp_get_csp_primaries(src.primaries), rgb2xyz);
- gl_sc_uniform_vec3(sc, "src_luma", rgb2xyz[1]);
- mp_get_rgb2xyz_matrix(mp_get_csp_primaries(dst.primaries), rgb2xyz);
- gl_sc_uniform_vec3(sc, "dst_luma", rgb2xyz[1]);
-
- bool need_ootf = src.light != dst.light;
- if (src.light == MP_CSP_LIGHT_SCENE_HLG && src.hdr.max_luma != dst.hdr.max_luma)
+ pl_matrix3x3 rgb2xyz = pl_get_rgb2xyz_matrix(pl_raw_primaries_get(src.primaries));
+ gl_sc_uniform_vec3(sc, "src_luma", rgb2xyz.m[1]);
+ rgb2xyz = pl_get_rgb2xyz_matrix(pl_raw_primaries_get(dst.primaries));
+ gl_sc_uniform_vec3(sc, "dst_luma", rgb2xyz.m[1]);
+
+ bool need_ootf = src_light != dst_light;
+ if (src_light == MP_CSP_LIGHT_SCENE_HLG && src.hdr.max_luma != dst.hdr.max_luma)
need_ootf = true;
// All operations from here on require linear light as a starting point,
- // so we linearize even if src.gamma == dst.gamma when one of the other
+ // so we linearize even if src.gamma == dst.transfer when one of the other
// operations needs it
- bool need_linear = src.gamma != dst.gamma ||
+ bool need_linear = src.transfer != dst.transfer ||
src.primaries != dst.primaries ||
src.hdr.max_luma != dst.hdr.max_luma ||
need_ootf;
if (need_linear && !is_linear) {
// We also pull it up so that 1.0 is the reference white
- pass_linearize(sc, src.gamma);
+ pass_linearize(sc, src.transfer);
is_linear = true;
}
// Pre-scale the incoming values into an absolute scale
- GLSLF("color.rgb *= vec3(%f);\n", mp_trc_nom_peak(src.gamma));
+ GLSLF("color.rgb *= vec3(%f);\n", pl_color_transfer_nominal_peak(src.transfer));
if (need_ootf)
- pass_ootf(sc, src.light, src.hdr.max_luma / MP_REF_WHITE);
+ pass_ootf(sc, src_light, src.hdr.max_luma / MP_REF_WHITE);
// Tone map to prevent clipping due to excessive brightness
if (src.hdr.max_luma > dst.hdr.max_luma) {
@@ -879,11 +881,11 @@ void pass_color_map(struct gl_shader_cache *sc, bool is_linear,
// Adapt to the right colorspace if necessary
if (src.primaries != dst.primaries) {
- struct mp_csp_primaries csp_src = mp_get_csp_primaries(src.primaries),
- csp_dst = mp_get_csp_primaries(dst.primaries);
- float m[3][3] = {{0}};
- mp_get_cms_matrix(csp_src, csp_dst, MP_INTENT_RELATIVE_COLORIMETRIC, m);
- gl_sc_uniform_mat3(sc, "cms_matrix", true, &m[0][0]);
+ const struct pl_raw_primaries *csp_src = pl_raw_primaries_get(src.primaries),
+ *csp_dst = pl_raw_primaries_get(dst.primaries);
+ pl_matrix3x3 m = pl_get_color_mapping_matrix(csp_src, csp_dst,
+ PL_INTENT_RELATIVE_COLORIMETRIC);
+ gl_sc_uniform_mat3(sc, "cms_matrix", true, &m.m[0][0]);
GLSL(color.rgb = cms_matrix * color.rgb;)
if (!opts->gamut_mode || opts->gamut_mode == GAMUT_DESATURATE) {
@@ -900,14 +902,14 @@ void pass_color_map(struct gl_shader_cache *sc, bool is_linear,
}
if (need_ootf)
- pass_inverse_ootf(sc, dst.light, dst.hdr.max_luma / MP_REF_WHITE);
+ pass_inverse_ootf(sc, dst_light, dst.hdr.max_luma / MP_REF_WHITE);
// Post-scale the outgoing values from absolute scale to normalized.
// For SDR, we normalize to the chosen signal peak. For HDR, we normalize
// to the encoding range of the transfer function.
float dst_range = dst.hdr.max_luma / MP_REF_WHITE;
- if (mp_trc_is_hdr(dst.gamma))
- dst_range = mp_trc_nom_peak(dst.gamma);
+ if (pl_color_space_is_hdr(&dst))
+ dst_range = pl_color_transfer_nominal_peak(dst.transfer);
GLSLF("color.rgb *= vec3(%f);\n", 1.0 / dst_range);
@@ -919,7 +921,7 @@ void pass_color_map(struct gl_shader_cache *sc, bool is_linear,
}
if (is_linear)
- pass_delinearize(sc, dst.gamma);
+ pass_delinearize(sc, dst.transfer);
}
// Wide usage friendly PRNG, shamelessly stolen from a GLSL tricks forum post.
@@ -964,7 +966,7 @@ const struct m_sub_options deband_conf = {
// Stochastically sample a debanded result from a hooked texture.
void pass_sample_deband(struct gl_shader_cache *sc, struct deband_opts *opts,
- AVLFG *lfg, enum mp_csp_trc trc)
+ AVLFG *lfg, enum pl_color_transfer trc)
{
// Initialize the PRNG
GLSLF("{\n");
@@ -1008,7 +1010,7 @@ void pass_sample_deband(struct gl_shader_cache *sc, struct deband_opts *opts,
GLSL(noise.z = rand(h); h = permute(h);)
// Noise is scaled to the signal level to prevent extreme noise for HDR
- float gain = opts->grain/8192.0 / mp_trc_nom_peak(trc);
+ float gain = opts->grain/8192.0 / pl_color_transfer_nominal_peak(trc);
GLSLF("color.xyz += %f * (noise - vec3(0.5));\n", gain);
GLSLF("}\n");
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 20:04:05 +0000