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test2/source/blender/sequencer/intern/modifier.cc
Richard Antalik 0396316fa4 Fix #141084: Sound glitches in render with equalizer 
Ultimately, the issue was caused by updating sound sequence handle in
`AUD_SequenceEntry_setSound` on each new frame regardless if the
modifier data has changed.

This commit fixes the issue by implementing a means for modifiers to
check, if their parameters or inputs are changed.
This is done by storing these parameters in `StripModifierDataRuntime`
struct, that is shared between all modifier types. This is not ideal,
but it significantly simplifies dependency graph runtime store/restore
code.
Function `strip_update_sound_modifiers` passes boolean `needs_update`
to strip stack update functions. If any needs to be updated, it sets
value of `needs_update` to true allowing following update functions to
skip parameter checking to speed up the process.

Original code updated sound sequence handle twice. Once by function
`BKE_sound_update_scene_sound` then by `strip_update_sound_modifiers`.
If sound modifier is used, only `strip_update_sound_modifiers` needs to
be called, so there is condition to decide which one of these functions
is called.

Also fixes #139605

Pull Request: https://projects.blender.org/blender/blender/pulls/141595
2025-07-18 16:34:09 +02:00

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/* SPDX-FileCopyrightText: 2012-2024 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*/
#include <algorithm>
#include <cstddef>
#include <cstring>
#include "BLI_array.hh"
#include "BLI_hash.hh"
#include "BLI_listbase.h"
#include "BLI_math_geom.h"
#include "BLI_math_vector.hh"
#include "BLI_rand.hh"
#include "BLI_set.hh"
#include "BLI_string.h"
#include "BLI_string_utils.hh"
#include "BLI_task.hh"
#include "BLT_translation.hh"
#include "DNA_mask_types.h"
#include "DNA_sequence_types.h"
#include "BKE_colortools.hh"
#include "IMB_colormanagement.hh"
#include "IMB_imbuf.hh"
#include "IMB_imbuf_types.hh"
#include "SEQ_modifier.hh"
#include "SEQ_render.hh"
#include "SEQ_sound.hh"
#include "SEQ_time.hh"
#include "SEQ_utils.hh"
#include "BLO_read_write.hh"
#include "modifier.hh"
#include "render.hh"
namespace blender::seq {
/* -------------------------------------------------------------------- */
static bool modifier_has_persistent_uid(const Strip &strip, int uid)
{
LISTBASE_FOREACH (StripModifierData *, smd, &strip.modifiers) {
if (smd->persistent_uid == uid) {
return true;
}
}
return false;
}
void modifier_persistent_uid_init(const Strip &strip, StripModifierData &smd)
{
uint64_t hash = blender::get_default_hash(blender::StringRef(smd.name));
blender::RandomNumberGenerator rng{uint32_t(hash)};
while (true) {
const int new_uid = rng.get_int32();
if (new_uid <= 0) {
continue;
}
if (modifier_has_persistent_uid(strip, new_uid)) {
continue;
}
smd.persistent_uid = new_uid;
break;
}
}
bool modifier_persistent_uids_are_valid(const Strip &strip)
{
Set<int> uids;
int modifiers_num = 0;
LISTBASE_FOREACH (StripModifierData *, smd, &strip.modifiers) {
if (smd->persistent_uid <= 0) {
return false;
}
uids.add(smd->persistent_uid);
modifiers_num++;
}
if (uids.size() != modifiers_num) {
return false;
}
return true;
}
static float4 load_pixel_premul(const uchar *ptr)
{
float4 res;
straight_uchar_to_premul_float(res, ptr);
return res;
}
static float4 load_pixel_premul(const float *ptr)
{
return float4(ptr);
}
static void store_pixel_premul(float4 pix, uchar *ptr)
{
premul_float_to_straight_uchar(ptr, pix);
}
static void store_pixel_premul(float4 pix, float *ptr)
{
*reinterpret_cast<float4 *>(ptr) = pix;
}
static float4 load_pixel_raw(const uchar *ptr)
{
float4 res;
rgba_uchar_to_float(res, ptr);
return res;
}
static float4 load_pixel_raw(const float *ptr)
{
return float4(ptr);
}
static void store_pixel_raw(float4 pix, uchar *ptr)
{
rgba_float_to_uchar(ptr, pix);
}
static void store_pixel_raw(float4 pix, float *ptr)
{
*reinterpret_cast<float4 *>(ptr) = pix;
}
/* Byte mask */
static void apply_and_advance_mask(float4 input, float4 &result, const uchar *&mask)
{
float3 m;
rgb_uchar_to_float(m, mask);
result.x = math::interpolate(input.x, result.x, m.x);
result.y = math::interpolate(input.y, result.y, m.y);
result.z = math::interpolate(input.z, result.z, m.z);
mask += 4;
}
/* Float mask */
static void apply_and_advance_mask(float4 input, float4 &result, const float *&mask)
{
float3 m(mask);
result.x = math::interpolate(input.x, result.x, m.x);
result.y = math::interpolate(input.y, result.y, m.y);
result.z = math::interpolate(input.z, result.z, m.z);
mask += 4;
}
/* No mask */
static void apply_and_advance_mask(float4 /*input*/, float4 & /*result*/, const void *& /*mask*/)
{
}
/* Given `T` that implements an `apply` function:
*
* template <typename ImageT, typename MaskT>
* void apply(ImageT* image, const MaskT* mask, IndexRange size);
*
* this function calls the apply() function in parallel
* chunks of the image to process, and with needed
* uchar, float or void types (void is used for mask, when there is
* no masking). Both input and mask images are expected to have
* 4 (RGBA) color channels. Input is modified. */
template<typename T> static void apply_modifier_op(T &op, ImBuf *ibuf, const ImBuf *mask)
{
if (ibuf == nullptr) {
return;
}
BLI_assert_msg(ibuf->channels == 0 || ibuf->channels == 4,
"Sequencer only supports 4 channel images");
BLI_assert_msg(mask == nullptr || mask->channels == 0 || mask->channels == 4,
"Sequencer only supports 4 channel images");
threading::parallel_for(IndexRange(size_t(ibuf->x) * ibuf->y), 32 * 1024, [&](IndexRange range) {
uchar *image_byte = ibuf->byte_buffer.data;
float *image_float = ibuf->float_buffer.data;
const uchar *mask_byte = mask ? mask->byte_buffer.data : nullptr;
const float *mask_float = mask ? mask->float_buffer.data : nullptr;
const void *mask_none = nullptr;
int64_t offset = range.first() * 4;
/* Instantiate the needed processing function based on image/mask
* data types. */
if (image_byte) {
if (mask_byte) {
op.apply(image_byte + offset, mask_byte + offset, range);
}
else if (mask_float) {
op.apply(image_byte + offset, mask_float + offset, range);
}
else {
op.apply(image_byte + offset, mask_none, range);
}
}
else if (image_float) {
if (mask_byte) {
op.apply(image_float + offset, mask_byte + offset, range);
}
else if (mask_float) {
op.apply(image_float + offset, mask_float + offset, range);
}
else {
op.apply(image_float + offset, mask_none, range);
}
}
});
}
/**
* \a timeline_frame is offset by \a fra_offset only in case we are using a real mask.
*/
static ImBuf *modifier_render_mask_input(const RenderData *context,
int mask_input_type,
Strip *mask_strip,
Mask *mask_id,
int timeline_frame,
int fra_offset)
{
ImBuf *mask_input = nullptr;
if (mask_input_type == SEQUENCE_MASK_INPUT_STRIP) {
if (mask_strip) {
SeqRenderState state;
mask_input = seq_render_strip(context, &state, mask_strip, timeline_frame);
}
}
else if (mask_input_type == SEQUENCE_MASK_INPUT_ID) {
/* Note that we do not request mask to be float image: if it is that is
* fine, but if it is a byte image then we also just take that without
* extra memory allocations or conversions. All modifiers are expected
* to handle mask being either type. */
mask_input = seq_render_mask(context, mask_id, timeline_frame - fra_offset, false);
}
return mask_input;
}
static ImBuf *modifier_mask_get(StripModifierData *smd,
const RenderData *context,
int timeline_frame,
int fra_offset)
{
return modifier_render_mask_input(
context, smd->mask_input_type, smd->mask_strip, smd->mask_id, timeline_frame, fra_offset);
}
/* -------------------------------------------------------------------- */
/** \name Color Balance Modifier
* \{ */
/* Lift-Gamma-Gain math. NOTE: lift is actually (2-lift). */
static float color_balance_lgg(
float in, const float lift, const float gain, const float gamma, const float mul)
{
float x = (((in - 1.0f) * lift) + 1.0f) * gain;
/* prevent NaN */
x = std::max(x, 0.0f);
x = powf(x, gamma) * mul;
CLAMP(x, FLT_MIN, FLT_MAX);
return x;
}
/* Slope-Offset-Power (ASC CDL) math, see https://en.wikipedia.org/wiki/ASC_CDL */
static float color_balance_sop(
float in, const float slope, const float offset, const float power, float mul)
{
float x = in * slope + offset;
/* prevent NaN */
x = std::max(x, 0.0f);
x = powf(x, power);
x *= mul;
CLAMP(x, FLT_MIN, FLT_MAX);
return x;
}
/**
* Use a larger lookup table than 256 possible byte values: due to alpha
* pre-multiplication, dark values with low alphas might need more precision.
*/
static constexpr int CB_TABLE_SIZE = 1024;
static void make_cb_table_lgg(
float lift, float gain, float gamma, float mul, float r_table[CB_TABLE_SIZE])
{
for (int i = 0; i < CB_TABLE_SIZE; i++) {
float x = float(i) * (1.0f / (CB_TABLE_SIZE - 1.0f));
r_table[i] = color_balance_lgg(x, lift, gain, gamma, mul);
}
}
static void make_cb_table_sop(
float slope, float offset, float power, float mul, float r_table[CB_TABLE_SIZE])
{
for (int i = 0; i < CB_TABLE_SIZE; i++) {
float x = float(i) * (1.0f / (CB_TABLE_SIZE - 1.0f));
r_table[i] = color_balance_sop(x, slope, offset, power, mul);
}
}
struct ColorBalanceApplyOp {
int method;
float3 lift, gain, gamma;
float3 slope, offset, power;
float multiplier;
float lut[3][CB_TABLE_SIZE];
/* Apply on a byte image via a table lookup. */
template<typename MaskT> void apply(uchar *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
float4 input = load_pixel_premul(image);
float4 result;
int p0 = int(input.x * (CB_TABLE_SIZE - 1.0f) + 0.5f);
int p1 = int(input.y * (CB_TABLE_SIZE - 1.0f) + 0.5f);
int p2 = int(input.z * (CB_TABLE_SIZE - 1.0f) + 0.5f);
result.x = this->lut[0][p0];
result.y = this->lut[1][p1];
result.z = this->lut[2][p2];
result.w = input.w;
apply_and_advance_mask(input, result, mask);
store_pixel_premul(result, image);
image += 4;
}
}
/* Apply on a float image by doing full math. */
template<typename MaskT> void apply(float *image, const MaskT *mask, IndexRange size)
{
if (this->method == SEQ_COLOR_BALANCE_METHOD_LIFTGAMMAGAIN) {
/* Lift/Gamma/Gain */
for ([[maybe_unused]] int64_t i : size) {
float4 input = load_pixel_premul(image);
float4 result;
result.x = color_balance_lgg(
input.x, this->lift.x, this->gain.x, this->gamma.x, this->multiplier);
result.y = color_balance_lgg(
input.y, this->lift.y, this->gain.y, this->gamma.y, this->multiplier);
result.z = color_balance_lgg(
input.z, this->lift.z, this->gain.z, this->gamma.z, this->multiplier);
result.w = input.w;
apply_and_advance_mask(input, result, mask);
store_pixel_premul(result, image);
image += 4;
}
}
else if (this->method == SEQ_COLOR_BALANCE_METHOD_SLOPEOFFSETPOWER) {
/* Slope/Offset/Power */
for ([[maybe_unused]] int64_t i : size) {
float4 input = load_pixel_premul(image);
float4 result;
result.x = color_balance_sop(
input.x, this->slope.x, this->offset.x, this->power.x, this->multiplier);
result.y = color_balance_sop(
input.y, this->slope.y, this->offset.y, this->power.y, this->multiplier);
result.z = color_balance_sop(
input.z, this->slope.z, this->offset.z, this->power.z, this->multiplier);
result.w = input.w;
apply_and_advance_mask(input, result, mask);
store_pixel_premul(result, image);
image += 4;
}
}
else {
BLI_assert_unreachable();
}
}
void init_lgg(const StripColorBalance &data)
{
BLI_assert(data.method == SEQ_COLOR_BALANCE_METHOD_LIFTGAMMAGAIN);
this->lift = 2.0f - float3(data.lift);
if (data.flag & SEQ_COLOR_BALANCE_INVERSE_LIFT) {
for (int c = 0; c < 3; c++) {
/* tweak to give more subtle results
* values above 1.0 are scaled */
if (this->lift[c] > 1.0f) {
this->lift[c] = powf(this->lift[c] - 1.0f, 2.0f) + 1.0f;
}
this->lift[c] = 2.0f - this->lift[c];
}
}
this->gain = float3(data.gain);
if (data.flag & SEQ_COLOR_BALANCE_INVERSE_GAIN) {
this->gain = math::rcp(math::max(this->gain, float3(1.0e-6f)));
}
this->gamma = float3(data.gamma);
if (!(data.flag & SEQ_COLOR_BALANCE_INVERSE_GAMMA)) {
this->gamma = math::rcp(math::max(this->gamma, float3(1.0e-6f)));
}
}
void init_sop(const StripColorBalance &data)
{
BLI_assert(data.method == SEQ_COLOR_BALANCE_METHOD_SLOPEOFFSETPOWER);
this->slope = float3(data.slope);
if (data.flag & SEQ_COLOR_BALANCE_INVERSE_SLOPE) {
this->slope = math::rcp(math::max(this->slope, float3(1.0e-6f)));
}
this->offset = float3(data.offset) - 1.0f;
if (data.flag & SEQ_COLOR_BALANCE_INVERSE_OFFSET) {
this->offset = -this->offset;
}
this->power = float3(data.power);
if (!(data.flag & SEQ_COLOR_BALANCE_INVERSE_POWER)) {
this->power = math::rcp(math::max(this->power, float3(1.0e-6f)));
}
}
void init(const ColorBalanceModifierData &data, bool byte_image)
{
this->multiplier = data.color_multiply;
this->method = data.color_balance.method;
if (this->method == SEQ_COLOR_BALANCE_METHOD_LIFTGAMMAGAIN) {
init_lgg(data.color_balance);
if (byte_image) {
for (int c = 0; c < 3; c++) {
make_cb_table_lgg(
this->lift[c], this->gain[c], this->gamma[c], this->multiplier, this->lut[c]);
}
}
}
else if (this->method == SEQ_COLOR_BALANCE_METHOD_SLOPEOFFSETPOWER) {
init_sop(data.color_balance);
if (byte_image) {
for (int c = 0; c < 3; c++) {
make_cb_table_sop(
this->slope[c], this->offset[c], this->power[c], this->multiplier, this->lut[c]);
}
}
}
else {
BLI_assert_unreachable();
}
}
};
static void colorBalance_init_data(StripModifierData *smd)
{
ColorBalanceModifierData *cbmd = (ColorBalanceModifierData *)smd;
cbmd->color_multiply = 1.0f;
cbmd->color_balance.method = 0;
for (int c = 0; c < 3; c++) {
cbmd->color_balance.lift[c] = 1.0f;
cbmd->color_balance.gamma[c] = 1.0f;
cbmd->color_balance.gain[c] = 1.0f;
cbmd->color_balance.slope[c] = 1.0f;
cbmd->color_balance.offset[c] = 1.0f;
cbmd->color_balance.power[c] = 1.0f;
}
}
static void colorBalance_apply(const StripScreenQuad & /*quad*/,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
const ColorBalanceModifierData *cbmd = (const ColorBalanceModifierData *)smd;
ColorBalanceApplyOp op;
op.init(*cbmd, ibuf->byte_buffer.data != nullptr);
apply_modifier_op(op, ibuf, mask);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name White Balance Modifier
* \{ */
static void whiteBalance_init_data(StripModifierData *smd)
{
WhiteBalanceModifierData *cbmd = (WhiteBalanceModifierData *)smd;
copy_v3_fl(cbmd->white_value, 1.0f);
}
struct WhiteBalanceApplyOp {
float multiplier[3];
template<typename ImageT, typename MaskT>
void apply(ImageT *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
float4 input = load_pixel_premul(image);
float4 result;
result.w = input.w;
#if 0
mul_v3_v3(result, multiplier);
#else
/* similar to division without the clipping */
for (int i = 0; i < 3; i++) {
/* Prevent pow argument from being negative. This whole math
* breaks down overall with any HDR colors; would be good to
* revisit and do something more proper. */
float f = max_ff(1.0f - input[i], 0.0f);
result[i] = 1.0f - powf(f, this->multiplier[i]);
}
#endif
apply_and_advance_mask(input, result, mask);
store_pixel_premul(result, image);
image += 4;
}
}
};
static void whiteBalance_apply(const StripScreenQuad & /*quad*/,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
const WhiteBalanceModifierData *data = (const WhiteBalanceModifierData *)smd;
WhiteBalanceApplyOp op;
op.multiplier[0] = (data->white_value[0] != 0.0f) ? 1.0f / data->white_value[0] : FLT_MAX;
op.multiplier[1] = (data->white_value[1] != 0.0f) ? 1.0f / data->white_value[1] : FLT_MAX;
op.multiplier[2] = (data->white_value[2] != 0.0f) ? 1.0f / data->white_value[2] : FLT_MAX;
apply_modifier_op(op, ibuf, mask);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Curves Modifier
* \{ */
static void curves_init_data(StripModifierData *smd)
{
CurvesModifierData *cmd = (CurvesModifierData *)smd;
BKE_curvemapping_set_defaults(&cmd->curve_mapping, 4, 0.0f, 0.0f, 1.0f, 1.0f, HD_AUTO);
}
static void curves_free_data(StripModifierData *smd)
{
CurvesModifierData *cmd = (CurvesModifierData *)smd;
BKE_curvemapping_free_data(&cmd->curve_mapping);
}
static void curves_copy_data(StripModifierData *target, StripModifierData *smd)
{
CurvesModifierData *cmd = (CurvesModifierData *)smd;
CurvesModifierData *cmd_target = (CurvesModifierData *)target;
BKE_curvemapping_copy_data(&cmd_target->curve_mapping, &cmd->curve_mapping);
}
struct CurvesApplyOp {
const CurveMapping *curve_mapping;
template<typename ImageT, typename MaskT>
void apply(ImageT *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
float4 input = load_pixel_premul(image);
float4 result;
BKE_curvemapping_evaluate_premulRGBF(this->curve_mapping, result, input);
result.w = input.w;
apply_and_advance_mask(input, result, mask);
store_pixel_premul(result, image);
image += 4;
}
}
};
static void curves_apply(const StripScreenQuad & /*quad*/,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
CurvesModifierData *cmd = (CurvesModifierData *)smd;
const float black[3] = {0.0f, 0.0f, 0.0f};
const float white[3] = {1.0f, 1.0f, 1.0f};
BKE_curvemapping_init(&cmd->curve_mapping);
BKE_curvemapping_premultiply(&cmd->curve_mapping, false);
BKE_curvemapping_set_black_white(&cmd->curve_mapping, black, white);
CurvesApplyOp op;
op.curve_mapping = &cmd->curve_mapping;
apply_modifier_op(op, ibuf, mask);
BKE_curvemapping_premultiply(&cmd->curve_mapping, true);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Hue Correct Modifier
* \{ */
static void hue_correct_init_data(StripModifierData *smd)
{
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
int c;
BKE_curvemapping_set_defaults(&hcmd->curve_mapping, 1, 0.0f, 0.0f, 1.0f, 1.0f, HD_AUTO);
hcmd->curve_mapping.preset = CURVE_PRESET_MID8;
for (c = 0; c < 3; c++) {
CurveMap *cuma = &hcmd->curve_mapping.cm[c];
BKE_curvemap_reset(
cuma, &hcmd->curve_mapping.clipr, hcmd->curve_mapping.preset, CURVEMAP_SLOPE_POSITIVE);
}
/* use wrapping for all hue correct modifiers */
hcmd->curve_mapping.flag |= CUMA_USE_WRAPPING;
/* default to showing Saturation */
hcmd->curve_mapping.cur = 1;
}
static void hue_correct_free_data(StripModifierData *smd)
{
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
BKE_curvemapping_free_data(&hcmd->curve_mapping);
}
static void hue_correct_copy_data(StripModifierData *target, StripModifierData *smd)
{
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
HueCorrectModifierData *hcmd_target = (HueCorrectModifierData *)target;
BKE_curvemapping_copy_data(&hcmd_target->curve_mapping, &hcmd->curve_mapping);
}
struct HueCorrectApplyOp {
const CurveMapping *curve_mapping;
template<typename ImageT, typename MaskT>
void apply(ImageT *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
/* NOTE: arguably incorrect usage of "raw" values, should be un-premultiplied.
* Not changing behavior for now, but would be good to fix someday. */
float4 input = load_pixel_raw(image);
float4 result;
result.w = input.w;
float3 hsv;
rgb_to_hsv(input.x, input.y, input.z, &hsv.x, &hsv.y, &hsv.z);
/* adjust hue, scaling returned default 0.5 up to 1 */
float f;
f = BKE_curvemapping_evaluateF(this->curve_mapping, 0, hsv.x);
hsv.x += f - 0.5f;
/* adjust saturation, scaling returned default 0.5 up to 1 */
f = BKE_curvemapping_evaluateF(this->curve_mapping, 1, hsv.x);
hsv.y *= (f * 2.0f);
/* adjust value, scaling returned default 0.5 up to 1 */
f = BKE_curvemapping_evaluateF(this->curve_mapping, 2, hsv.x);
hsv.z *= (f * 2.0f);
hsv.x = hsv.x - floorf(hsv.x); /* mod 1.0 */
hsv.y = math::clamp(hsv.y, 0.0f, 1.0f);
/* convert back to rgb */
hsv_to_rgb(hsv.x, hsv.y, hsv.z, &result.x, &result.y, &result.z);
apply_and_advance_mask(input, result, mask);
store_pixel_raw(result, image);
image += 4;
}
}
};
static void hue_correct_apply(const StripScreenQuad & /*quad*/,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
BKE_curvemapping_init(&hcmd->curve_mapping);
HueCorrectApplyOp op;
op.curve_mapping = &hcmd->curve_mapping;
apply_modifier_op(op, ibuf, mask);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Brightness/Contrast Modifier
* \{ */
struct BrightContrastApplyOp {
float mul;
float add;
template<typename ImageT, typename MaskT>
void apply(ImageT *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
/* NOTE: arguably incorrect usage of "raw" values, should be un-premultiplied.
* Not changing behavior for now, but would be good to fix someday. */
float4 input = load_pixel_raw(image);
float4 result;
result = input * this->mul + this->add;
result.w = input.w;
apply_and_advance_mask(input, result, mask);
store_pixel_raw(result, image);
image += 4;
}
}
};
static void brightcontrast_apply(const StripScreenQuad & /*quad*/,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
const BrightContrastModifierData *bcmd = (BrightContrastModifierData *)smd;
BrightContrastApplyOp op;
/* The algorithm is by Werner D. Streidt
* (http://visca.com/ffactory/archives/5-99/msg00021.html)
* Extracted from OpenCV `demhist.cpp`. */
const float brightness = bcmd->bright / 100.0f;
const float contrast = bcmd->contrast;
float delta = contrast / 200.0f;
if (contrast > 0) {
op.mul = 1.0f - delta * 2.0f;
op.mul = 1.0f / max_ff(op.mul, FLT_EPSILON);
op.add = op.mul * (brightness - delta);
}
else {
delta *= -1;
op.mul = max_ff(1.0f - delta * 2.0f, 0.0f);
op.add = op.mul * brightness + delta;
}
apply_modifier_op(op, ibuf, mask);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Mask Modifier
* \{ */
static float load_mask_min(const uchar *&mask)
{
float m = float(min_iii(mask[0], mask[1], mask[2])) * (1.0f / 255.0f);
mask += 4;
return m;
}
static float load_mask_min(const float *&mask)
{
float m = min_fff(mask[0], mask[1], mask[2]);
mask += 4;
return m;
}
static float load_mask_min(const void *& /*mask*/)
{
return 1.0f;
}
struct MaskApplyOp {
template<typename ImageT, typename MaskT>
void apply(ImageT *image, const MaskT *mask, IndexRange size)
{
for ([[maybe_unused]] int64_t i : size) {
float m = load_mask_min(mask);
if constexpr (std::is_same_v<ImageT, uchar>) {
/* Byte buffer is straight, so only affect on alpha itself, this is
* the only way to alpha-over byte strip after applying mask modifier. */
image[3] = uchar(image[3] * m);
}
else if constexpr (std::is_same_v<ImageT, float>) {
/* Float buffers are premultiplied, so need to premul color as well to make it
* easy to alpha-over masked strip. */
float4 pix(image);
pix *= m;
*reinterpret_cast<float4 *>(image) = pix;
}
image += 4;
}
}
};
static void maskmodifier_apply(const StripScreenQuad & /*quad*/,
StripModifierData * /*smd*/,
ImBuf *ibuf,
ImBuf *mask)
{
if (mask == nullptr || (mask->byte_buffer.data == nullptr && mask->float_buffer.data == nullptr))
{
return;
}
MaskApplyOp op;
apply_modifier_op(op, ibuf, mask);
/* Image has gained transparency. */
ibuf->planes = R_IMF_PLANES_RGBA;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Tonemap Modifier
* \{ */
struct AvgLogLum {
const SequencerTonemapModifierData *tmmd;
float al;
float auto_key;
float lav;
float3 cav;
float igm;
};
static void tonemapmodifier_init_data(StripModifierData *smd)
{
SequencerTonemapModifierData *tmmd = (SequencerTonemapModifierData *)smd;
/* Same as tone-map compositor node. */
tmmd->type = SEQ_TONEMAP_RD_PHOTORECEPTOR;
tmmd->key = 0.18f;
tmmd->offset = 1.0f;
tmmd->gamma = 1.0f;
tmmd->intensity = 0.0f;
tmmd->contrast = 0.0f;
tmmd->adaptation = 1.0f;
tmmd->correction = 0.0f;
}
/* Convert chunk of float image pixels to scene linear space, in-place. */
static void pixels_to_scene_linear_float(const ColorSpace *colorspace,
float4 *pixels,
int64_t count)
{
IMB_colormanagement_colorspace_to_scene_linear(
(float *)(pixels), int(count), 1, 4, colorspace, false);
}
/* Convert chunk of byte image pixels to scene linear space, into a destination array. */
static void pixels_to_scene_linear_byte(const ColorSpace *colorspace,
const uchar *pixels,
float4 *dst,
int64_t count)
{
const uchar *bptr = pixels;
float4 *dst_ptr = dst;
for (int64_t i = 0; i < count; i++) {
straight_uchar_to_premul_float(*dst_ptr, bptr);
bptr += 4;
dst_ptr++;
}
IMB_colormanagement_colorspace_to_scene_linear(
(float *)dst, int(count), 1, 4, colorspace, false);
}
static void scene_linear_to_image_chunk_float(ImBuf *ibuf, IndexRange range)
{
const ColorSpace *colorspace = ibuf->float_buffer.colorspace;
float4 *fptr = reinterpret_cast<float4 *>(ibuf->float_buffer.data);
IMB_colormanagement_scene_linear_to_colorspace(
(float *)(fptr + range.first()), int(range.size()), 1, 4, colorspace);
}
static void scene_linear_to_image_chunk_byte(float4 *src, ImBuf *ibuf, IndexRange range)
{
const ColorSpace *colorspace = ibuf->byte_buffer.colorspace;
IMB_colormanagement_scene_linear_to_colorspace(
(float *)src, int(range.size()), 1, 4, colorspace);
const float4 *src_ptr = src;
uchar *bptr = ibuf->byte_buffer.data;
for (const int64_t idx : range) {
premul_float_to_straight_uchar(bptr + idx * 4, *src_ptr);
src_ptr++;
}
}
static void tonemap_simple(float4 *scene_linear,
ImBuf *mask,
IndexRange range,
const AvgLogLum &avg)
{
const float4 *mask_float = mask != nullptr ? (const float4 *)mask->float_buffer.data : nullptr;
const uchar4 *mask_byte = mask != nullptr ? (const uchar4 *)mask->byte_buffer.data : nullptr;
int64_t index = 0;
for (const int64_t pixel_index : range) {
float4 input = scene_linear[index];
/* Apply correction. */
float3 pixel = input.xyz() * avg.al;
float3 d = pixel + avg.tmmd->offset;
pixel.x /= (d.x == 0.0f) ? 1.0f : d.x;
pixel.y /= (d.y == 0.0f) ? 1.0f : d.y;
pixel.z /= (d.z == 0.0f) ? 1.0f : d.z;
const float igm = avg.igm;
if (igm != 0.0f) {
pixel.x = powf(math::max(pixel.x, 0.0f), igm);
pixel.y = powf(math::max(pixel.y, 0.0f), igm);
pixel.z = powf(math::max(pixel.z, 0.0f), igm);
}
/* Apply mask. */
if (mask != nullptr) {
float3 msk(1.0f);
if (mask_byte != nullptr) {
rgb_uchar_to_float(msk, mask_byte[pixel_index]);
}
else if (mask_float != nullptr) {
msk = mask_float[pixel_index].xyz();
}
pixel = math::interpolate(input.xyz(), pixel, msk);
}
scene_linear[index] = float4(pixel.x, pixel.y, pixel.z, input.w);
index++;
}
}
static void tonemap_rd_photoreceptor(float4 *scene_linear,
ImBuf *mask,
IndexRange range,
const AvgLogLum &avg)
{
const float4 *mask_float = mask != nullptr ? (const float4 *)mask->float_buffer.data : nullptr;
const uchar4 *mask_byte = mask != nullptr ? (const uchar4 *)mask->byte_buffer.data : nullptr;
const float f = expf(-avg.tmmd->intensity);
const float m = (avg.tmmd->contrast > 0.0f) ? avg.tmmd->contrast :
(0.3f + 0.7f * powf(avg.auto_key, 1.4f));
const float ic = 1.0f - avg.tmmd->correction, ia = 1.0f - avg.tmmd->adaptation;
int64_t index = 0;
for (const int64_t pixel_index : range) {
float4 input = scene_linear[index];
/* Apply correction. */
float3 pixel = input.xyz();
const float L = IMB_colormanagement_get_luminance(pixel);
float I_l = pixel.x + ic * (L - pixel.x);
float I_g = avg.cav.x + ic * (avg.lav - avg.cav.x);
float I_a = I_l + ia * (I_g - I_l);
pixel.x /= std::max(pixel.x + powf(f * I_a, m), 1.0e-30f);
I_l = pixel.y + ic * (L - pixel.y);
I_g = avg.cav.y + ic * (avg.lav - avg.cav.y);
I_a = I_l + ia * (I_g - I_l);
pixel.y /= std::max(pixel.y + powf(f * I_a, m), 1.0e-30f);
I_l = pixel.z + ic * (L - pixel.z);
I_g = avg.cav.z + ic * (avg.lav - avg.cav.z);
I_a = I_l + ia * (I_g - I_l);
pixel.z /= std::max(pixel.z + powf(f * I_a, m), 1.0e-30f);
/* Apply mask. */
if (mask != nullptr) {
float3 msk(1.0f);
if (mask_byte != nullptr) {
rgb_uchar_to_float(msk, mask_byte[pixel_index]);
}
else if (mask_float != nullptr) {
msk = mask_float[pixel_index].xyz();
}
pixel = math::interpolate(input.xyz(), pixel, msk);
}
scene_linear[index] = float4(pixel.x, pixel.y, pixel.z, input.w);
index++;
}
}
static bool is_point_inside_quad(const StripScreenQuad &quad, int x, int y)
{
float2 pt(x + 0.5f, y + 0.5f);
return isect_point_quad_v2(pt, quad.v0, quad.v1, quad.v2, quad.v3);
}
struct AreaLuminance {
int64_t pixel_count = 0;
double sum = 0.0f;
float3 color_sum = {0, 0, 0};
double log_sum = 0.0;
float min = FLT_MAX;
float max = -FLT_MAX;
};
static void tonemap_calc_chunk_luminance(const StripScreenQuad &quad,
const bool all_pixels_inside_quad,
const int width,
const IndexRange y_range,
const float4 *scene_linear,
AreaLuminance &r_lum)
{
for (const int y : y_range) {
for (int x = 0; x < width; x++) {
if (all_pixels_inside_quad || is_point_inside_quad(quad, x, y)) {
float4 pixel = *scene_linear;
r_lum.pixel_count++;
float L = IMB_colormanagement_get_luminance(pixel);
r_lum.sum += L;
r_lum.color_sum.x += pixel.x;
r_lum.color_sum.y += pixel.y;
r_lum.color_sum.z += pixel.z;
r_lum.log_sum += logf(math::max(L, 0.0f) + 1e-5f);
r_lum.max = math::max(r_lum.max, L);
r_lum.min = math::min(r_lum.min, L);
}
scene_linear++;
}
}
}
static AreaLuminance tonemap_calc_input_luminance(const StripScreenQuad &quad, const ImBuf *ibuf)
{
/* Pixels outside the pre-transform strip area are ignored for luminance calculations.
* If strip area covers whole image, we can trivially accept all pixels. */
const bool all_pixels_inside_quad = is_point_inside_quad(quad, 0, 0) &&
is_point_inside_quad(quad, ibuf->x - 1, 0) &&
is_point_inside_quad(quad, 0, ibuf->y - 1) &&
is_point_inside_quad(quad, ibuf->x - 1, ibuf->y - 1);
AreaLuminance lum;
lum = threading::parallel_reduce(
IndexRange(ibuf->y),
32,
lum,
/* Calculate luminance for a chunk. */
[&](const IndexRange y_range, const AreaLuminance &init) {
AreaLuminance lum = init;
const int64_t chunk_size = y_range.size() * ibuf->x;
/* For float images, convert to scene-linear in place. The rest
* of tone-mapper can then continue with scene-linear values. */
if (ibuf->float_buffer.data != nullptr) {
float4 *fptr = reinterpret_cast<float4 *>(ibuf->float_buffer.data);
fptr += y_range.first() * ibuf->x;
pixels_to_scene_linear_float(ibuf->float_buffer.colorspace, fptr, chunk_size);
tonemap_calc_chunk_luminance(quad, all_pixels_inside_quad, ibuf->x, y_range, fptr, lum);
}
else {
const uchar *bptr = ibuf->byte_buffer.data + y_range.first() * ibuf->x * 4;
Array<float4> scene_linear(chunk_size);
pixels_to_scene_linear_byte(
ibuf->byte_buffer.colorspace, bptr, scene_linear.data(), chunk_size);
tonemap_calc_chunk_luminance(
quad, all_pixels_inside_quad, ibuf->x, y_range, scene_linear.data(), lum);
}
return lum;
},
/* Reduce luminance results. */
[&](const AreaLuminance &a, const AreaLuminance &b) {
AreaLuminance res;
res.pixel_count = a.pixel_count + b.pixel_count;
res.sum = a.sum + b.sum;
res.color_sum = a.color_sum + b.color_sum;
res.log_sum = a.log_sum + b.log_sum;
res.min = math::min(a.min, b.min);
res.max = math::max(a.max, b.max);
return res;
});
return lum;
}
static void tonemapmodifier_apply(const StripScreenQuad &quad,
StripModifierData *smd,
ImBuf *ibuf,
ImBuf *mask)
{
const SequencerTonemapModifierData *tmmd = (const SequencerTonemapModifierData *)smd;
AreaLuminance lum = tonemap_calc_input_luminance(quad, ibuf);
if (lum.pixel_count == 0) {
return; /* Strip is zero size or off-screen. */
}
AvgLogLum data;
data.tmmd = tmmd;
data.lav = lum.sum / lum.pixel_count;
data.cav.x = lum.color_sum.x / lum.pixel_count;
data.cav.y = lum.color_sum.y / lum.pixel_count;
data.cav.z = lum.color_sum.z / lum.pixel_count;
float maxl = log(double(lum.max) + 1e-5f);
float minl = log(double(lum.min) + 1e-5f);
float avl = lum.log_sum / lum.pixel_count;
data.auto_key = (maxl > minl) ? ((maxl - avl) / (maxl - minl)) : 1.0f;
float al = exp(double(avl));
data.al = (al == 0.0f) ? 0.0f : (tmmd->key / al);
data.igm = (tmmd->gamma == 0.0f) ? 1.0f : (1.0f / tmmd->gamma);
threading::parallel_for(
IndexRange(int64_t(ibuf->x) * ibuf->y), 64 * 1024, [&](IndexRange range) {
if (ibuf->float_buffer.data != nullptr) {
/* Float pixels: no need for temporary storage. Luminance calculation already converted
* data to scene linear. */
float4 *pixels = (float4 *)(ibuf->float_buffer.data) + range.first();
if (tmmd->type == SEQ_TONEMAP_RD_PHOTORECEPTOR) {
tonemap_rd_photoreceptor(pixels, mask, range, data);
}
else {
BLI_assert(tmmd->type == SEQ_TONEMAP_RH_SIMPLE);
tonemap_simple(pixels, mask, range, data);
}
scene_linear_to_image_chunk_float(ibuf, range);
}
else {
/* Byte pixels: temporary storage for scene linear pixel values. */
Array<float4> scene_linear(range.size());
pixels_to_scene_linear_byte(ibuf->byte_buffer.colorspace,
ibuf->byte_buffer.data + range.first() * 4,
scene_linear.data(),
range.size());
if (tmmd->type == SEQ_TONEMAP_RD_PHOTORECEPTOR) {
tonemap_rd_photoreceptor(scene_linear.data(), mask, range, data);
}
else {
BLI_assert(tmmd->type == SEQ_TONEMAP_RH_SIMPLE);
tonemap_simple(scene_linear.data(), mask, range, data);
}
scene_linear_to_image_chunk_byte(scene_linear.data(), ibuf, range);
}
});
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Public Modifier Functions
* \{ */
static StripModifierTypeInfo modifiersTypes[NUM_SEQUENCE_MODIFIER_TYPES] = {
{}, /* First entry is unused. */
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Color Balance"),
/*struct_name*/ "ColorBalanceModifierData",
/*struct_size*/ sizeof(ColorBalanceModifierData),
/*init_data*/ colorBalance_init_data,
/*free_data*/ nullptr,
/*copy_data*/ nullptr,
/*apply*/ colorBalance_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Curves"),
/*struct_name*/ "CurvesModifierData",
/*struct_size*/ sizeof(CurvesModifierData),
/*init_data*/ curves_init_data,
/*free_data*/ curves_free_data,
/*copy_data*/ curves_copy_data,
/*apply*/ curves_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Hue Correct"),
/*struct_name*/ "HueCorrectModifierData",
/*struct_size*/ sizeof(HueCorrectModifierData),
/*init_data*/ hue_correct_init_data,
/*free_data*/ hue_correct_free_data,
/*copy_data*/ hue_correct_copy_data,
/*apply*/ hue_correct_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Brightness/Contrast"),
/*struct_name*/ "BrightContrastModifierData",
/*struct_size*/ sizeof(BrightContrastModifierData),
/*init_data*/ nullptr,
/*free_data*/ nullptr,
/*copy_data*/ nullptr,
/*apply*/ brightcontrast_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Mask"),
/*struct_name*/ "SequencerMaskModifierData",
/*struct_size*/ sizeof(SequencerMaskModifierData),
/*init_data*/ nullptr,
/*free_data*/ nullptr,
/*copy_data*/ nullptr,
/*apply*/ maskmodifier_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "White Balance"),
/*struct_name*/ "WhiteBalanceModifierData",
/*struct_size*/ sizeof(WhiteBalanceModifierData),
/*init_data*/ whiteBalance_init_data,
/*free_data*/ nullptr,
/*copy_data*/ nullptr,
/*apply*/ whiteBalance_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Tonemap"),
/*struct_name*/ "SequencerTonemapModifierData",
/*struct_size*/ sizeof(SequencerTonemapModifierData),
/*init_data*/ tonemapmodifier_init_data,
/*free_data*/ nullptr,
/*copy_data*/ nullptr,
/*apply*/ tonemapmodifier_apply,
},
{
/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Equalizer"),
/*struct_name*/ "SoundEqualizerModifierData",
/*struct_size*/ sizeof(SoundEqualizerModifierData),
/*init_data*/ sound_equalizermodifier_init_data,
/*free_data*/ sound_equalizermodifier_free,
/*copy_data*/ sound_equalizermodifier_copy_data,
/*apply*/ nullptr,
},
};
const StripModifierTypeInfo *modifier_type_info_get(int type)
{
if (type <= 0 || type >= NUM_SEQUENCE_MODIFIER_TYPES) {
return nullptr;
}
return &modifiersTypes[type];
}
StripModifierData *modifier_new(Strip *strip, const char *name, int type)
{
StripModifierData *smd;
const StripModifierTypeInfo *smti = modifier_type_info_get(type);
smd = static_cast<StripModifierData *>(MEM_callocN(smti->struct_size, "sequence modifier"));
smd->type = type;
smd->flag |= SEQUENCE_MODIFIER_EXPANDED;
if (!name || !name[0]) {
STRNCPY(smd->name, CTX_DATA_(BLT_I18NCONTEXT_ID_SEQUENCE, smti->name));
}
else {
STRNCPY(smd->name, name);
}
BLI_addtail(&strip->modifiers, smd);
modifier_unique_name(strip, smd);
if (smti->init_data) {
smti->init_data(smd);
}
return smd;
}
bool modifier_remove(Strip *strip, StripModifierData *smd)
{
if (BLI_findindex(&strip->modifiers, smd) == -1) {
return false;
}
BLI_remlink(&strip->modifiers, smd);
modifier_free(smd);
return true;
}
void modifier_clear(Strip *strip)
{
StripModifierData *smd, *smd_next;
for (smd = static_cast<StripModifierData *>(strip->modifiers.first); smd; smd = smd_next) {
smd_next = smd->next;
modifier_free(smd);
}
BLI_listbase_clear(&strip->modifiers);
}
void modifier_free(StripModifierData *smd)
{
const StripModifierTypeInfo *smti = modifier_type_info_get(smd->type);
if (smti && smti->free_data) {
smti->free_data(smd);
}
MEM_freeN(smd);
}
void modifier_unique_name(Strip *strip, StripModifierData *smd)
{
const StripModifierTypeInfo *smti = modifier_type_info_get(smd->type);
BLI_uniquename(&strip->modifiers,
smd,
CTX_DATA_(BLT_I18NCONTEXT_ID_SEQUENCE, smti->name),
'.',
offsetof(StripModifierData, name),
sizeof(smd->name));
}
StripModifierData *modifier_find_by_name(Strip *strip, const char *name)
{
return static_cast<StripModifierData *>(
BLI_findstring(&(strip->modifiers), name, offsetof(StripModifierData, name)));
}
static bool skip_modifier(Scene *scene, const StripModifierData *smd, int timeline_frame)
{
using namespace blender::seq;
if (smd->mask_strip == nullptr) {
return false;
}
const bool strip_has_ended_skip = smd->mask_input_type == SEQUENCE_MASK_INPUT_STRIP &&
smd->mask_time == SEQUENCE_MASK_TIME_RELATIVE &&
!time_strip_intersects_frame(
scene, smd->mask_strip, timeline_frame);
const bool missing_data_skip = !strip_has_valid_data(smd->mask_strip) ||
media_presence_is_missing(scene, smd->mask_strip);
return strip_has_ended_skip || missing_data_skip;
}
void modifier_apply_stack(const RenderData *context,
const Strip *strip,
ImBuf *ibuf,
int timeline_frame)
{
const StripScreenQuad quad = get_strip_screen_quad(context, strip);
if (strip->modifiers.first && (strip->flag & SEQ_USE_LINEAR_MODIFIERS)) {
render_imbuf_from_sequencer_space(context->scene, ibuf);
}
LISTBASE_FOREACH (StripModifierData *, smd, &strip->modifiers) {
const StripModifierTypeInfo *smti = modifier_type_info_get(smd->type);
/* could happen if modifier is being removed or not exists in current version of blender */
if (!smti) {
continue;
}
/* modifier is muted, do nothing */
if (smd->flag & SEQUENCE_MODIFIER_MUTE) {
continue;
}
if (smti->apply && !skip_modifier(context->scene, smd, timeline_frame)) {
int frame_offset;
if (smd->mask_time == SEQUENCE_MASK_TIME_RELATIVE) {
frame_offset = strip->start;
}
else /* if (smd->mask_time == SEQUENCE_MASK_TIME_ABSOLUTE) */ {
frame_offset = smd->mask_id ? ((Mask *)smd->mask_id)->sfra : 0;
}
ImBuf *mask = modifier_mask_get(smd, context, timeline_frame, frame_offset);
smti->apply(quad, smd, ibuf, mask);
if (mask) {
IMB_freeImBuf(mask);
}
}
}
if (strip->modifiers.first && (strip->flag & SEQ_USE_LINEAR_MODIFIERS)) {
seq_imbuf_to_sequencer_space(context->scene, ibuf, false);
}
}
StripModifierData *modifier_copy(Strip &strip_dst, StripModifierData *mod_src)
{
const StripModifierTypeInfo *smti = modifier_type_info_get(mod_src->type);
StripModifierData *mod_new = static_cast<StripModifierData *>(MEM_dupallocN(mod_src));
if (smti && smti->copy_data) {
smti->copy_data(mod_new, mod_src);
}
BLI_addtail(&strip_dst.modifiers, mod_new);
BLI_uniquename(&strip_dst.modifiers,
mod_new,
"Strip Modifier",
'.',
offsetof(StripModifierData, name),
sizeof(StripModifierData::name));
return mod_new;
}
void modifier_list_copy(Strip *strip_new, Strip *strip)
{
LISTBASE_FOREACH (StripModifierData *, smd, &strip->modifiers) {
modifier_copy(*strip_new, smd);
}
}
int sequence_supports_modifiers(Strip *strip)
{
return (strip->type != STRIP_TYPE_SOUND_RAM);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name .blend File I/O
* \{ */
void modifier_blend_write(BlendWriter *writer, ListBase *modbase)
{
LISTBASE_FOREACH (StripModifierData *, smd, modbase) {
const StripModifierTypeInfo *smti = modifier_type_info_get(smd->type);
if (smti) {
BLO_write_struct_by_name(writer, smti->struct_name, smd);
if (smd->type == seqModifierType_Curves) {
CurvesModifierData *cmd = (CurvesModifierData *)smd;
BKE_curvemapping_blend_write(writer, &cmd->curve_mapping);
}
else if (smd->type == seqModifierType_HueCorrect) {
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
BKE_curvemapping_blend_write(writer, &hcmd->curve_mapping);
}
else if (smd->type == seqModifierType_SoundEqualizer) {
SoundEqualizerModifierData *semd = (SoundEqualizerModifierData *)smd;
LISTBASE_FOREACH (EQCurveMappingData *, eqcmd, &semd->graphics) {
BLO_write_struct_by_name(writer, "EQCurveMappingData", eqcmd);
BKE_curvemapping_blend_write(writer, &eqcmd->curve_mapping);
}
}
}
else {
BLO_write_struct(writer, StripModifierData, smd);
}
}
}
void modifier_blend_read_data(BlendDataReader *reader, ListBase *lb)
{
BLO_read_struct_list(reader, StripModifierData, lb);
LISTBASE_FOREACH (StripModifierData *, smd, lb) {
if (smd->mask_strip) {
BLO_read_struct(reader, Strip, &smd->mask_strip);
}
if (smd->type == seqModifierType_Curves) {
CurvesModifierData *cmd = (CurvesModifierData *)smd;
BKE_curvemapping_blend_read(reader, &cmd->curve_mapping);
}
else if (smd->type == seqModifierType_HueCorrect) {
HueCorrectModifierData *hcmd = (HueCorrectModifierData *)smd;
BKE_curvemapping_blend_read(reader, &hcmd->curve_mapping);
}
else if (smd->type == seqModifierType_SoundEqualizer) {
SoundEqualizerModifierData *semd = (SoundEqualizerModifierData *)smd;
BLO_read_struct_list(reader, EQCurveMappingData, &semd->graphics);
LISTBASE_FOREACH (EQCurveMappingData *, eqcmd, &semd->graphics) {
BKE_curvemapping_blend_read(reader, &eqcmd->curve_mapping);
}
}
}
}
/** \} */
} // namespace blender::seq
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