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obs-shaderfilter.c
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obs-shaderfilter.c
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// Version 2.0 by Exeldro https://github.com/exeldro/obs-shaderfilter
// Version 1.21 by Charles Fettinger https://github.com/Oncorporation/obs-shaderfilter
// original version by nleseul https://github.com/nleseul/obs-shaderfilter
#include <obs-module.h>
#include <graphics/graphics.h>
#include <graphics/image-file.h>
#include <graphics/math-extra.h>
#include <util/base.h>
#include <util/dstr.h>
#include <util/darray.h>
#include <util/platform.h>
#include <float.h>
#include <limits.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <util/threading.h>
#include "version.h"
#define nullptr ((void *)0)
static const char *effect_template_begin = "\
uniform float4x4 ViewProj;\n\
uniform texture2d image;\n\
\n\
uniform float2 uv_offset;\n\
uniform float2 uv_scale;\n\
uniform float2 uv_pixel_interval;\n\
uniform float2 uv_size;\n\
uniform float rand_f;\n\
uniform float rand_instance_f;\n\
uniform float rand_activation_f;\n\
uniform float elapsed_time;\n\
uniform int loops;\n\
uniform float local_time;\n\
\n\
sampler_state textureSampler{\n\
Filter = Linear;\n\
AddressU = Border;\n\
AddressV = Border;\n\
BorderColor = 00000000;\n\
};\n\
\n\
struct VertData {\n\
float4 pos : POSITION;\n\
float2 uv : TEXCOORD0;\n\
};\n\
\n\
VertData mainTransform(VertData v_in)\n\
{\n\
VertData vert_out;\n\
vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);\n\
vert_out.uv = v_in.uv * uv_scale + uv_offset;\n\
return vert_out;\n\
}\n\
\n\
";
static const char *effect_template_default_image_shader = "\n\
float4 mainImage(VertData v_in) : TARGET\n\
{\n\
return image.Sample(textureSampler, v_in.uv);\n\
}\n\
";
static const char *effect_template_end = "\n\
technique Draw\n\
{\n\
pass\n\
{\n\
vertex_shader = mainTransform(v_in);\n\
pixel_shader = mainImage(v_in);\n\
}\n\
}\n";
struct effect_param_data {
struct dstr name;
struct dstr display_name;
struct dstr widget_type;
struct dstr description;
struct dstr group;
struct dstr path;
DARRAY(int) option_values;
DARRAY(struct dstr) option_labels;
enum gs_shader_param_type type;
gs_eparam_t *param;
gs_image_file_t *image;
gs_texrender_t *render;
obs_weak_source_t *source;
union {
long long i;
double f;
char *string;
} value;
char *label;
union {
long long i;
double f;
} minimum;
union {
long long i;
double f;
} maximum;
union {
long long i;
double f;
} step;
};
struct shader_filter_data {
obs_source_t *context;
gs_effect_t *effect;
bool reload_effect;
struct dstr last_path;
bool last_from_file;
//uint64_t shader_last_time;
float shader_start_time;
//uint64_t shader_duration;
gs_eparam_t *param_uv_offset;
gs_eparam_t *param_uv_scale;
gs_eparam_t *param_uv_pixel_interval;
gs_eparam_t *param_uv_size;
gs_eparam_t *param_elapsed_time;
gs_eparam_t *param_loops;
gs_eparam_t *param_local_time;
gs_eparam_t *param_rand_f;
gs_eparam_t *param_rand_instance_f;
gs_eparam_t *param_rand_activation_f;
int expand_left;
int expand_right;
int expand_top;
int expand_bottom;
int total_width;
int total_height;
bool use_shader_elapsed_time;
bool no_repeat;
bool rendering;
struct vec2 uv_offset;
struct vec2 uv_scale;
struct vec2 uv_pixel_interval;
struct vec2 uv_size;
float elapsed_time;
float elapsed_time_loop;
int loops;
float local_time;
float rand_f;
float rand_instance_f;
float rand_activation_f;
DARRAY(struct effect_param_data) stored_param_list;
};
static unsigned int rand_interval(unsigned int min, unsigned int max)
{
unsigned int r;
const unsigned int range = 1 + max - min;
const unsigned int buckets = RAND_MAX / range;
const unsigned int limit = buckets * range;
/* Create equal size buckets all in a row, then fire randomly towards
* the buckets until you land in one of them. All buckets are equally
* likely. If you land off the end of the line of buckets, try again. */
do {
r = rand();
} while (r >= limit);
return min + (r / buckets);
}
static char *
load_shader_from_file(const char *file_name) // add input of visited files
{
char *file_ptr = os_quick_read_utf8_file(file_name);
if (file_ptr == NULL)
return NULL;
char **lines = strlist_split(file_ptr, '\n', true);
struct dstr shader_file;
dstr_init(&shader_file);
size_t line_i = 0;
while (lines[line_i] != NULL) {
char *line = lines[line_i];
line_i++;
if (strncmp(line, "#include", 8) == 0) {
// Open the included file, place contents here.
char *pos = strrchr(file_name, '/');
const size_t length = pos - file_name + 1;
struct dstr include_path = {0};
dstr_ncopy(&include_path, file_name, length);
char *start = strchr(line, '"') + 1;
char *end = strrchr(line, '"');
dstr_ncat(&include_path, start, end - start);
char *abs_include_path =
os_get_abs_path_ptr(include_path.array);
char *file_contents =
load_shader_from_file(abs_include_path);
dstr_cat(&shader_file, file_contents);
dstr_cat(&shader_file, "\n");
bfree(abs_include_path);
bfree(file_contents);
dstr_free(&include_path);
} else {
// else place current line here.
dstr_cat(&shader_file, line);
dstr_cat(&shader_file, "\n");
}
}
// Add file_name to visited files
// Do stuff with the file, and populate shader_file
/*
for line in file:
if line starts with #include
get path
if path is not in visited files
include_file_contents = load_shader_from_file(path)
concat include_file_contents onto shader_file
else
concat line onto shader_file
*/
bfree(file_ptr);
strlist_free(lines);
return shader_file.array;
}
static void shader_filter_clear_params(struct shader_filter_data *filter)
{
size_t param_count = filter->stored_param_list.num;
for (size_t param_index = 0; param_index < param_count; param_index++) {
struct effect_param_data *param =
(filter->stored_param_list.array + param_index);
if (param->image) {
obs_enter_graphics();
gs_image_file_free(param->image);
obs_leave_graphics();
bfree(param->image);
param->image = NULL;
}
if (param->source) {
obs_weak_source_release(param->source);
param->source = NULL;
}
if (param->render) {
obs_enter_graphics();
gs_texrender_destroy(param->render);
obs_leave_graphics();
param->render = NULL;
}
dstr_free(¶m->name);
dstr_free(¶m->display_name);
dstr_free(¶m->widget_type);
dstr_free(¶m->description);
dstr_free(¶m->group);
dstr_free(¶m->path);
da_free(param->option_values);
for (size_t i = 0; i < param->option_labels.num; i++) {
dstr_free(¶m->option_labels.array[i]);
}
da_free(param->option_labels);
}
da_free(filter->stored_param_list);
}
static void shader_filter_reload_effect(struct shader_filter_data *filter)
{
obs_data_t *settings = obs_source_get_settings(filter->context);
// First, clean up the old effect and all references to it.
filter->shader_start_time = 0.0;
shader_filter_clear_params(filter);
filter->param_elapsed_time = NULL;
filter->param_uv_offset = NULL;
filter->param_uv_pixel_interval = NULL;
filter->param_uv_scale = NULL;
filter->param_uv_size = NULL;
filter->param_rand_f = NULL;
filter->param_rand_activation_f = NULL;
filter->param_rand_instance_f = NULL;
filter->param_loops = NULL;
filter->param_local_time = NULL;
if (filter->effect != NULL) {
obs_enter_graphics();
gs_effect_destroy(filter->effect);
filter->effect = NULL;
obs_leave_graphics();
}
// Load text and build the effect from the template, if necessary.
char *shader_text = NULL;
bool use_template =
!obs_data_get_bool(settings, "override_entire_effect");
if (obs_data_get_bool(settings, "from_file")) {
const char *file_name =
obs_data_get_string(settings, "shader_file_name");
shader_text = load_shader_from_file(file_name);
} else {
shader_text =
bstrdup(obs_data_get_string(settings, "shader_text"));
use_template = true;
}
struct dstr effect_text = {0};
if (use_template) {
dstr_cat(&effect_text, effect_template_begin);
}
if (shader_text) {
dstr_cat(&effect_text, shader_text);
bfree(shader_text);
}
if (use_template) {
dstr_cat(&effect_text, effect_template_end);
}
// Create the effect.
char *errors = NULL;
obs_enter_graphics();
int device_type = gs_get_device_type();
if (device_type == GS_DEVICE_OPENGL) {
dstr_replace(&effect_text, "[loop]", "");
dstr_insert(&effect_text, 0, "#define OPENGL 1\n");
}
if (filter->effect)
gs_effect_destroy(filter->effect);
filter->effect = gs_effect_create(effect_text.array, NULL, &errors);
obs_leave_graphics();
if (filter->effect == NULL) {
blog(LOG_WARNING,
"[obs-shaderfilter] Unable to create effect. Errors returned from parser:\n%s",
(errors == NULL || strlen(errors) == 0 ? "(None)"
: errors));
if (errors && strlen(errors)) {
obs_data_set_string(settings, "last_error", errors);
} else {
obs_data_set_string(
settings, "last_error",
obs_module_text("ShaderFilter.Unknown"));
}
dstr_free(&effect_text);
bfree(errors);
goto end;
} else {
dstr_free(&effect_text);
obs_data_unset_user_value(settings, "last_error");
}
// Store references to the new effect's parameters.
da_init(filter->stored_param_list);
size_t effect_count = gs_effect_get_num_params(filter->effect);
for (size_t effect_index = 0; effect_index < effect_count;
effect_index++) {
gs_eparam_t *param = gs_effect_get_param_by_idx(filter->effect,
effect_index);
struct gs_effect_param_info info;
gs_effect_get_param_info(param, &info);
if (strcmp(info.name, "uv_offset") == 0) {
filter->param_uv_offset = param;
} else if (strcmp(info.name, "uv_scale") == 0) {
filter->param_uv_scale = param;
} else if (strcmp(info.name, "uv_pixel_interval") == 0) {
filter->param_uv_pixel_interval = param;
} else if (strcmp(info.name, "uv_size") == 0) {
filter->param_uv_size = param;
} else if (strcmp(info.name, "elapsed_time") == 0) {
filter->param_elapsed_time = param;
} else if (strcmp(info.name, "rand_f") == 0) {
filter->param_rand_f = param;
} else if (strcmp(info.name, "rand_activation_f") == 0) {
filter->param_rand_activation_f = param;
} else if (strcmp(info.name, "rand_instance_f") == 0) {
filter->param_rand_instance_f = param;
} else if (strcmp(info.name, "loops") == 0) {
filter->param_loops = param;
} else if (strcmp(info.name, "local_time") == 0) {
filter->param_local_time = param;
} else if (strcmp(info.name, "ViewProj") == 0 ||
strcmp(info.name, "image") == 0) {
// Nothing.
} else {
struct effect_param_data *cached_data =
da_push_back_new(filter->stored_param_list);
dstr_copy(&cached_data->name, info.name);
cached_data->type = info.type;
cached_data->param = param;
da_init(cached_data->option_values);
da_init(cached_data->option_labels);
const size_t annotation_count =
gs_param_get_num_annotations(param);
for (size_t annotation_index = 0;
annotation_index < annotation_count;
annotation_index++) {
gs_eparam_t *annotation =
gs_param_get_annotation_by_idx(
param, annotation_index);
void *annotation_default =
gs_effect_get_default_val(annotation);
gs_effect_get_param_info(annotation, &info);
if (strcmp(info.name, "name") == 0 &&
info.type == GS_SHADER_PARAM_STRING) {
dstr_copy(&cached_data->display_name,
(const char *)
annotation_default);
} else if (strcmp(info.name, "label") == 0 &&
info.type ==
GS_SHADER_PARAM_STRING) {
dstr_copy(&cached_data->display_name,
(const char *)
annotation_default);
} else if (strcmp(info.name, "widget_type") ==
0 &&
info.type ==
GS_SHADER_PARAM_STRING) {
dstr_copy(&cached_data->widget_type,
(const char *)
annotation_default);
} else if (strcmp(info.name, "group") == 0 &&
info.type ==
GS_SHADER_PARAM_STRING) {
dstr_copy(&cached_data->group,
(const char *)
annotation_default);
} else if (strcmp(info.name, "minimum") == 0) {
if (info.type ==
GS_SHADER_PARAM_FLOAT) {
cached_data->minimum.f = *(
float *)annotation_default;
} else if (info.type ==
GS_SHADER_PARAM_INT) {
cached_data->minimum.i = *(
int *)annotation_default;
}
} else if (strcmp(info.name, "maximum") == 0) {
if (info.type ==
GS_SHADER_PARAM_FLOAT) {
cached_data->maximum.f = *(
float *)annotation_default;
} else if (info.type ==
GS_SHADER_PARAM_INT) {
cached_data->maximum.i = *(
int *)annotation_default;
}
} else if (strcmp(info.name, "step") == 0) {
if (info.type ==
GS_SHADER_PARAM_FLOAT) {
cached_data->step.f = *(
float *)annotation_default;
} else if (info.type ==
GS_SHADER_PARAM_INT) {
cached_data->step.i = *(
int *)annotation_default;
}
} else if (strncmp(info.name, "option_", 7) ==
0) {
int id = atoi(info.name + 7);
if (info.type == GS_SHADER_PARAM_INT) {
int val = *(
int *)annotation_default;
int *cd = da_insert_new(
cached_data
->option_values,
id);
*cd = val;
} else if (info.type ==
GS_SHADER_PARAM_STRING) {
struct dstr val = {0};
dstr_copy(
&val,
(const char *)
annotation_default);
struct dstr *cs = da_insert_new(
cached_data
->option_labels,
id);
*cs = val;
}
}
bfree(annotation_default);
}
}
}
end:
obs_data_release(settings);
}
static const char *shader_filter_get_name(void *unused)
{
UNUSED_PARAMETER(unused);
return obs_module_text("ShaderFilter");
}
static void *shader_filter_create(obs_data_t *settings, obs_source_t *source)
{
struct shader_filter_data *filter =
bzalloc(sizeof(struct shader_filter_data));
filter->context = source;
filter->reload_effect = true;
dstr_init(&filter->last_path);
dstr_copy(&filter->last_path,
obs_data_get_string(settings, "shader_file_name"));
filter->last_from_file = obs_data_get_bool(settings, "from_file");
filter->rand_instance_f =
(float)((double)rand_interval(0, 10000) / (double)10000);
filter->rand_activation_f =
(float)((double)rand_interval(0, 10000) / (double)10000);
da_init(filter->stored_param_list);
obs_source_update(source, settings);
return filter;
}
static void shader_filter_destroy(void *data)
{
struct shader_filter_data *filter = data;
shader_filter_clear_params(filter);
obs_enter_graphics();
if (filter->effect)
gs_effect_destroy(filter->effect);
obs_leave_graphics();
dstr_free(&filter->last_path);
da_free(filter->stored_param_list);
bfree(filter);
}
static bool shader_filter_from_file_changed(obs_properties_t *props,
obs_property_t *p,
obs_data_t *settings)
{
UNUSED_PARAMETER(p);
struct shader_filter_data *filter = obs_properties_get_param(props);
bool from_file = obs_data_get_bool(settings, "from_file");
obs_property_set_visible(obs_properties_get(props, "shader_text"),
!from_file);
obs_property_set_visible(obs_properties_get(props, "shader_file_name"),
from_file);
if (from_file != filter->last_from_file) {
filter->reload_effect = true;
}
filter->last_from_file = from_file;
return true;
}
static bool shader_filter_file_name_changed(obs_properties_t *props,
obs_property_t *p,
obs_data_t *settings)
{
struct shader_filter_data *filter = obs_properties_get_param(props);
const char *new_file_name =
obs_data_get_string(settings, obs_property_name(p));
if (dstr_is_empty(&filter->last_path) ||
dstr_cmp(&filter->last_path, new_file_name) != 0) {
filter->reload_effect = true;
dstr_copy(&filter->last_path, new_file_name);
size_t l = strlen(new_file_name);
if (l > 7 &&
strncmp(new_file_name + l - 7, ".effect", 7) == 0) {
obs_data_set_bool(settings, "override_entire_effect",
true);
} else if (l > 7 &&
strncmp(new_file_name + l - 7, ".shader", 7) == 0) {
obs_data_set_bool(settings, "override_entire_effect",
false);
}
}
return false;
}
static bool use_shader_elapsed_time_changed(obs_properties_t *props,
obs_property_t *p,
obs_data_t *settings)
{
UNUSED_PARAMETER(p);
struct shader_filter_data *filter = obs_properties_get_param(props);
bool use_shader_elapsed_time =
obs_data_get_bool(settings, "use_shader_elapsed_time");
if (use_shader_elapsed_time != filter->use_shader_elapsed_time) {
filter->reload_effect = true;
}
filter->use_shader_elapsed_time = use_shader_elapsed_time;
return false;
}
static bool shader_filter_reload_effect_clicked(obs_properties_t *props,
obs_property_t *property,
void *data)
{
UNUSED_PARAMETER(props);
UNUSED_PARAMETER(property);
struct shader_filter_data *filter = data;
filter->reload_effect = true;
obs_source_update(filter->context, NULL);
return false;
}
static bool add_source_to_list(void *data, obs_source_t *source)
{
obs_property_t *p = data;
const char *name = obs_source_get_name(source);
size_t count = obs_property_list_item_count(p);
size_t idx = 0;
while (idx < count &&
strcmp(name, obs_property_list_item_string(p, idx)) > 0)
idx++;
obs_property_list_insert_string(p, idx, name, name);
return true;
}
static const char *shader_filter_texture_file_filter =
"Textures (*.bmp *.tga *.png *.jpeg *.jpg *.gif);;";
static obs_properties_t *shader_filter_properties(void *data)
{
struct shader_filter_data *filter = data;
struct dstr examples_path = {0};
dstr_init(&examples_path);
dstr_cat(&examples_path,
obs_get_module_data_path(obs_current_module()));
dstr_cat(&examples_path, "/examples");
obs_properties_t *props = obs_properties_create();
obs_properties_set_param(props, filter, NULL);
obs_properties_add_int(props, "expand_left",
obs_module_text("ShaderFilter.ExpandLeft"), 0,
9999, 1);
obs_properties_add_int(props, "expand_right",
obs_module_text("ShaderFilter.ExpandRight"), 0,
9999, 1);
obs_properties_add_int(props, "expand_top",
obs_module_text("ShaderFilter.ExpandTop"), 0,
9999, 1);
obs_properties_add_int(props, "expand_bottom",
obs_module_text("ShaderFilter.ExpandBottom"), 0,
9999, 1);
obs_properties_add_bool(
props, "override_entire_effect",
obs_module_text("ShaderFilter.OverrideEntireEffect"));
obs_property_t *from_file = obs_properties_add_bool(
props, "from_file",
obs_module_text("ShaderFilter.LoadFromFile"));
obs_property_set_modified_callback(from_file,
shader_filter_from_file_changed);
obs_properties_add_text(props, "shader_text",
obs_module_text("ShaderFilter.ShaderText"),
OBS_TEXT_MULTILINE);
obs_property_t *file_name = obs_properties_add_path(
props, "shader_file_name",
obs_module_text("ShaderFilter.ShaderFileName"), OBS_PATH_FILE,
NULL, examples_path.array);
obs_property_set_modified_callback(file_name,
shader_filter_file_name_changed);
if (filter) {
obs_data_t *settings = obs_source_get_settings(filter->context);
const char *last_error =
obs_data_get_string(settings, "last_error");
if (last_error && strlen(last_error)) {
obs_property_t *error = obs_properties_add_text(
props, "last_error",
obs_module_text("ShaderFilter.Error"),
OBS_TEXT_INFO);
obs_property_text_set_info_type(error,
OBS_TEXT_INFO_ERROR);
}
obs_data_release(settings);
}
obs_property_t *use_shader_elapsed_time = obs_properties_add_bool(
props, "use_shader_elapsed_time",
obs_module_text("ShaderFilter.UseShaderElapsedTime"));
obs_property_set_modified_callback(use_shader_elapsed_time,
use_shader_elapsed_time_changed);
obs_properties_add_button(props, "reload_effect",
obs_module_text("ShaderFilter.ReloadEffect"),
shader_filter_reload_effect_clicked);
DARRAY(obs_property_t *) groups;
da_init(groups);
size_t param_count = filter->stored_param_list.num;
for (size_t param_index = 0; param_index < param_count; param_index++) {
struct effect_param_data *param =
(filter->stored_param_list.array + param_index);
//gs_eparam_t *annot = gs_param_get_annotation_by_idx(param->param, param_index);
const char *param_name = param->name.array;
const char *label = param->display_name.array;
const char *widget_type = param->widget_type.array;
const char *group_name = param->group.array;
const int *options = param->option_values.array;
const struct dstr *option_labels = param->option_labels.array;
struct dstr display_name = {0};
struct dstr sources_name = {0};
if (label == NULL) {
dstr_ncat(&display_name, param_name, param->name.len);
dstr_replace(&display_name, "_", " ");
} else {
dstr_ncat(&display_name, label,
param->display_name.len);
}
obs_properties_t *group = NULL;
if (group_name && strlen(group_name)) {
for (size_t i = 0; i < groups.num; i++) {
const char *n =
obs_property_name(groups.array[i]);
if (strcmp(n, group_name) == 0) {
group = obs_property_group_content(
groups.array[i]);
}
}
if (!group) {
group = obs_properties_create();
obs_property_t *p = obs_properties_add_group(
props, group_name, group_name,
OBS_GROUP_NORMAL, group);
da_push_back(groups, &p);
}
}
if (!group)
group = props;
switch (param->type) {
case GS_SHADER_PARAM_BOOL:
obs_properties_add_bool(group, param_name,
display_name.array);
break;
case GS_SHADER_PARAM_FLOAT: {
double range_min = param->minimum.f;
double range_max = param->maximum.f;
double step = param->step.f;
if (range_min == range_max) {
range_min = -1000.0;
range_max = 1000.0;
step = 0.0001;
}
obs_properties_remove_by_name(props, param_name);
if (widget_type != NULL &&
strcmp(widget_type, "slider") == 0) {
obs_properties_add_float_slider(
group, param_name, display_name.array,
range_min, range_max, step);
} else {
obs_properties_add_float(group, param_name,
display_name.array,
range_min, range_max,
step);
}
break;
}
case GS_SHADER_PARAM_INT: {
int range_min = (int)param->minimum.i;
int range_max = (int)param->maximum.i;
int step = (int)param->step.i;
if (range_min == range_max) {
range_min = -1000;
range_max = 1000;
step = 1;
}
obs_properties_remove_by_name(props, param_name);
if (widget_type != NULL &&
strcmp(widget_type, "slider") == 0) {
obs_properties_add_int_slider(
group, param_name, display_name.array,
range_min, range_max, step);
} else if (widget_type != NULL &&
strcmp(widget_type, "select") == 0) {
obs_property_t *plist = obs_properties_add_list(
group, param_name, display_name.array,
OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_INT);
for (size_t i = 0; i < param->option_values.num;
i++) {
obs_property_list_add_int(
plist, option_labels[i].array,
options[i]);
}
} else {
obs_properties_add_int(group, param_name,
display_name.array,
range_min, range_max,
step);
}
break;
}
case GS_SHADER_PARAM_INT3:
break;
case GS_SHADER_PARAM_VEC4:
obs_properties_add_color_alpha(group, param_name,
display_name.array);
break;
case GS_SHADER_PARAM_TEXTURE:
if (widget_type != NULL &&
strcmp(widget_type, "source") == 0) {
dstr_init_copy_dstr(&sources_name,
¶m->name);
dstr_cat(&sources_name, "_source");
obs_property_t *p = obs_properties_add_list(
group, sources_name.array,
display_name.array,
OBS_COMBO_TYPE_EDITABLE,
OBS_COMBO_FORMAT_STRING);
dstr_free(&sources_name);
obs_enum_sources(add_source_to_list, p);
obs_enum_scenes(add_source_to_list, p);
obs_property_list_insert_string(p, 0, "", "");
} else if (widget_type != NULL &&
strcmp(widget_type, "file") == 0) {
obs_properties_add_path(
group, param_name, display_name.array,
OBS_PATH_FILE,
shader_filter_texture_file_filter,
NULL);
} else {
dstr_init_copy_dstr(&sources_name,
¶m->name);
dstr_cat(&sources_name, "_source");
obs_property_t *p = obs_properties_add_list(
group, sources_name.array,
display_name.array,
OBS_COMBO_TYPE_EDITABLE,
OBS_COMBO_FORMAT_STRING);
dstr_free(&sources_name);
obs_property_list_add_string(p, "", "");
obs_enum_sources(add_source_to_list, p);
obs_enum_scenes(add_source_to_list, p);
obs_properties_add_path(
group, param_name, display_name.array,
OBS_PATH_FILE,
shader_filter_texture_file_filter,
NULL);
}
break;
case GS_SHADER_PARAM_STRING:
if (widget_type != NULL &&
strcmp(widget_type, "info") == 0) {
obs_properties_add_text(group, param_name,
display_name.array,
OBS_TEXT_INFO);
} else {
obs_properties_add_text(group, param_name,
display_name.array,
OBS_TEXT_MULTILINE);
}
break;
default:;
}
dstr_free(&display_name);
}
da_free(groups);
dstr_free(&examples_path);
obs_properties_add_text(
props, "plugin_info",
"<a href=\"https://obsproject.com/forum/resources/obs-shaderfilter.1736/\">obs-shaderfilter</a> (" PROJECT_VERSION
") by <a href=\"https://www.exeldro.com\">Exeldro</a>",
OBS_TEXT_INFO);
return props;
}
static void shader_filter_update(void *data, obs_data_t *settings)
{
struct shader_filter_data *filter = data;
// Get expansions. Will be used in the video_tick() callback.
filter->expand_left = (int)obs_data_get_int(settings, "expand_left");
filter->expand_right = (int)obs_data_get_int(settings, "expand_right");
filter->expand_top = (int)obs_data_get_int(settings, "expand_top");
filter->expand_bottom =
(int)obs_data_get_int(settings, "expand_bottom");
filter->use_shader_elapsed_time =
(bool)obs_data_get_bool(settings, "use_shader_elapsed_time");
filter->rand_activation_f =
(float)((double)rand_interval(0, 10000) / (double)10000);
if (filter->reload_effect) {
filter->reload_effect = false;
shader_filter_reload_effect(filter);
obs_source_update_properties(filter->context);
}
size_t param_count = filter->stored_param_list.num;
for (size_t param_index = 0; param_index < param_count; param_index++) {
struct effect_param_data *param =
(filter->stored_param_list.array + param_index);
//gs_eparam_t *annot = gs_param_get_annotation_by_idx(param->param, param_index);
const char *param_name = param->name.array;
struct dstr sources_name = {0};
obs_source_t *source = NULL;
void *default_value = gs_effect_get_default_val(param->param);
switch (param->type) {
case GS_SHADER_PARAM_BOOL:
if (default_value != NULL)
obs_data_set_default_bool(
settings, param_name,
*(bool *)default_value);
param->value.i =
obs_data_get_bool(settings, param_name);
break;
case GS_SHADER_PARAM_FLOAT:
if (default_value != NULL)
obs_data_set_default_double(
settings, param_name,
*(float *)default_value);
param->value.f =
obs_data_get_double(settings, param_name);
break;
case GS_SHADER_PARAM_INT:
if (default_value != NULL)
obs_data_set_default_int(settings, param_name,
*(int *)default_value);
param->value.i = obs_data_get_int(settings, param_name);
break;
case GS_SHADER_PARAM_VEC4: { // Assumed to be a color.
struct vec4 *rgba = default_value;
if (rgba != NULL) {
obs_data_set_default_int(settings, param_name,
vec4_to_rgba(rgba));
} else {
// Hack to ensure we have a default...(white)
obs_data_set_default_int(settings, param_name,
0xffffffff);
}
uint32_t c = (uint32_t)obs_data_get_int(settings,
param_name);
struct vec4 color;
vec4_from_rgba_srgb(&color, c);
param->value.i = vec4_to_rgba(&color);
break;
}
case GS_SHADER_PARAM_TEXTURE:
dstr_init_copy_dstr(&sources_name, ¶m->name);
dstr_cat(&sources_name, "_source");
const char *sn = obs_data_get_string(
settings, sources_name.array);
dstr_free(&sources_name);
source = obs_weak_source_get_source(param->source);
if (source &&
strcmp(obs_source_get_name(source), sn) != 0) {
obs_source_release(source);
source = NULL;
}
if (!source)
source = (sn && strlen(sn))
? obs_get_source_by_name(sn)
: NULL;
if (source) {