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RetroArch/gfx/widgets/gfx_widget_volume.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2014-2017 - Jean-André Santoni
* Copyright (C) 2015-2018 - Andre Leiradella
* Copyright (C) 2018-2020 - natinusala
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "../gfx_widgets.h"
#include "../gfx_animation.h"
#include "../gfx_display.h"
/* Constants */
#define VOLUME_DURATION 3000
enum gfx_widget_volume_icon
{
ICON_MED = 0,
ICON_MAX,
ICON_MIN,
ICON_MUTE,
ICON_LAST
};
static const char* const ICONS_NAMES[ICON_LAST] = {
"menu_volume_med.png",
"menu_volume_max.png",
"menu_volume_min.png",
"menu_volume_mute.png",
};
/* Widget state */
struct gfx_widget_volume_state
{
uintptr_t tag;
uintptr_t textures[ICON_LAST];
unsigned widget_width;
unsigned widget_height;
float bar_background[16];
float bar_normal[16];
float bar_loud[16];
float bar_loudest[16];
float alpha;
float text_alpha;
float db;
float percent;
float timer; /* float alignment */
bool mute;
};
typedef struct gfx_widget_volume_state gfx_widget_volume_state_t;
static gfx_widget_volume_state_t p_w_volume_st = {
(uintptr_t) &p_w_volume_st,
{0},
0,
0,
COLOR_HEX_TO_FLOAT(0x1A1A1A, 1.0f),
COLOR_HEX_TO_FLOAT(0x198AC6, 1.0f),
COLOR_HEX_TO_FLOAT(0xF5DD19, 1.0f),
COLOR_HEX_TO_FLOAT(0xC23B22, 1.0f),
0.0f,
0.0f,
0.0f,
1.0f,
0.0f,
false
};
static void gfx_widget_volume_frame(void* data, void *user_data)
{
static float pure_white[16] = {
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
};
gfx_widget_volume_state_t *state = &p_w_volume_st;
if (state->alpha > 0.0f)
{
char msg[255];
char percentage_msg[255];
video_frame_info_t *video_info = (video_frame_info_t*)data;
dispgfx_widget_t *p_dispwidget = (dispgfx_widget_t*)user_data;
gfx_widget_font_data_t *font_regular = &p_dispwidget->gfx_widget_fonts.regular;
void *userdata = video_info->userdata;
unsigned video_width = video_info->width;
unsigned video_height = video_info->height;
unsigned padding = p_dispwidget->simple_widget_padding;
float* backdrop_orig = p_dispwidget->backdrop_orig;
uintptr_t volume_icon = 0;
unsigned icon_size = state->textures[ICON_MED] ? state->widget_height : padding;
unsigned text_color = COLOR_TEXT_ALPHA(0xffffffff, (unsigned)(state->text_alpha*255.0f));
unsigned text_color_db = COLOR_TEXT_ALPHA(TEXT_COLOR_FAINT, (unsigned)(state->text_alpha*255.0f));
unsigned bar_x = icon_size;
unsigned bar_height = font_regular->line_height / 2;
unsigned bar_width = state->widget_width - bar_x - padding;
unsigned bar_y = state->widget_height / 2 + bar_height;
float *bar_background = NULL;
float *bar_foreground = NULL;
float bar_percentage = 0.0f;
gfx_display_t *p_disp = (gfx_display_t*)video_info->disp_userdata;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
/* Note: Volume + percentage text has no component
* that extends below the baseline, so we shift
* the text down by the font descender to achieve
* better spacing */
unsigned volume_text_y = (bar_y / 2.0f)
+ font_regular->line_centre_offset
+ font_regular->line_descender;
msg[0] = '\0';
percentage_msg[0] = '\0';
if (state->mute)
volume_icon = state->textures[ICON_MUTE];
else if (state->percent <= 1.0f)
{
if (state->percent <= 0.5f)
volume_icon = state->textures[ICON_MIN];
else
volume_icon = state->textures[ICON_MED];
bar_background = state->bar_background;
bar_foreground = state->bar_normal;
bar_percentage = state->percent;
}
else if (state->percent > 1.0f && state->percent <= 2.0f)
{
volume_icon = state->textures[ICON_MAX];
bar_background = state->bar_normal;
bar_foreground = state->bar_loud;
bar_percentage = state->percent - 1.0f;
}
else
{
volume_icon = state->textures[ICON_MAX];
bar_background = state->bar_loud;
bar_foreground = state->bar_loudest;
bar_percentage = state->percent - 2.0f;
}
if (bar_percentage > 1.0f)
bar_percentage = 1.0f;
/* Backdrop */
gfx_display_set_alpha(backdrop_orig, state->alpha);
gfx_display_draw_quad(
p_disp,
userdata,
video_width,
video_height,
0, 0,
(state->mute)
? state->widget_height
: state->widget_width,
state->widget_height,
video_width,
video_height,
backdrop_orig,
NULL
);
/* Icon */
if (volume_icon)
{
gfx_display_set_alpha(pure_white, state->text_alpha);
if (dispctx && dispctx->blend_begin)
dispctx->blend_begin(userdata);
gfx_widgets_draw_icon(
userdata,
p_disp,
video_width,
video_height,
icon_size, icon_size,
volume_icon,
0,
0,
0.0f, /* rad */
1.0f, /* cos(rad) = cos(0) = 1.0f */
0.0f, /* sine(rad) = sine(0) = 0.0f */
pure_white
);
if (dispctx && dispctx->blend_end)
dispctx->blend_end(userdata);
}
if (state->mute)
{
if (!state->textures[ICON_MUTE])
{
const char *text = msg_hash_to_str(MSG_AUDIO_MUTED);
gfx_widgets_draw_text(font_regular,
text,
state->widget_width / 2,
state->widget_height / 2.0f
+ font_regular->line_centre_offset,
video_width, video_height,
text_color, TEXT_ALIGN_CENTER,
true);
}
}
else
{
/* Bar */
gfx_display_set_alpha(bar_background, state->text_alpha);
gfx_display_set_alpha(bar_foreground, state->text_alpha);
gfx_display_draw_quad(
p_disp,
userdata,
video_width,
video_height,
bar_x + bar_percentage * bar_width, bar_y,
bar_width - bar_percentage * bar_width, bar_height,
video_width, video_height,
bar_background,
NULL
);
gfx_display_draw_quad(
p_disp,
userdata,
video_width,
video_height,
bar_x, bar_y,
bar_percentage * bar_width, bar_height,
video_width, video_height,
bar_foreground,
NULL
);
/* Text */
snprintf(msg, sizeof(msg), (state->db >= 0 ? "+%.1f dB" : "%.1f dB"),
state->db);
snprintf(percentage_msg, sizeof(percentage_msg), "%d%%",
(int)(state->percent * 100.0f));
gfx_widgets_draw_text(font_regular,
msg,
state->widget_width - padding, volume_text_y,
video_width, video_height,
text_color_db,
TEXT_ALIGN_RIGHT,
false);
gfx_widgets_draw_text(font_regular,
percentage_msg,
icon_size, volume_text_y,
video_width, video_height,
text_color,
TEXT_ALIGN_LEFT,
false);
}
}
}
static void gfx_widget_volume_timer_end(void *userdata)
{
gfx_animation_ctx_entry_t entry;
gfx_widget_volume_state_t *state = &p_w_volume_st;
entry.cb = NULL;
entry.duration = MSG_QUEUE_ANIMATION_DURATION;
entry.easing_enum = EASING_OUT_QUAD;
entry.subject = &state->alpha;
entry.tag = state->tag;
entry.target_value = 0.0f;
entry.userdata = NULL;
gfx_animation_push(&entry);
entry.subject = &state->text_alpha;
gfx_animation_push(&entry);
}
void gfx_widget_volume_update_and_show(float new_volume, bool mute)
{
gfx_timer_ctx_entry_t entry;
gfx_widget_volume_state_t *state = &p_w_volume_st;
gfx_animation_kill_by_tag(&state->tag);
state->db = new_volume;
state->percent = pow(10, new_volume/20);
state->alpha = DEFAULT_BACKDROP;
state->text_alpha = 1.0f;
state->mute = mute;
entry.cb = gfx_widget_volume_timer_end;
entry.duration = VOLUME_DURATION;
entry.userdata = NULL;
gfx_animation_timer_start(&state->timer, &entry);
}
static void gfx_widget_volume_layout(
void *data,
bool is_threaded, const char *dir_assets, char *font_path)
{
dispgfx_widget_t *p_dispwidget = (dispgfx_widget_t*)data;
gfx_widget_volume_state_t *state = &p_w_volume_st;
unsigned last_video_width = p_dispwidget->last_video_width;
gfx_widget_font_data_t *font_regular = &p_dispwidget->gfx_widget_fonts.regular;
state->widget_height = font_regular->line_height * 4;
state->widget_width = state->widget_height * 4;
/* Volume widget cannot exceed screen width
* > If it does, scale it down */
if (state->widget_width > last_video_width)
{
state->widget_width = last_video_width;
state->widget_height = state->widget_width / 4;
}
}
static void gfx_widget_volume_context_reset(bool is_threaded,
unsigned width, unsigned height, bool fullscreen,
const char *dir_assets, char *font_path,
char* menu_png_path,
char* widgets_png_path)
{
size_t i;
gfx_widget_volume_state_t *state = &p_w_volume_st;
for (i = 0; i < ICON_LAST; i++)
gfx_display_reset_textures_list(ICONS_NAMES[i], menu_png_path, &state->textures[i], TEXTURE_FILTER_MIPMAP_LINEAR, NULL, NULL);
}
static void gfx_widget_volume_context_destroy(void)
{
size_t i;
gfx_widget_volume_state_t *state = &p_w_volume_st;
for (i = 0; i < ICON_LAST; i++)
video_driver_texture_unload(&state->textures[i]);
}
static void gfx_widget_volume_free(void)
{
gfx_widget_volume_state_t *state = &p_w_volume_st;
/* Kill all running animations */
gfx_animation_kill_by_tag(&state->tag);
state->alpha = 0.0f;
}
const gfx_widget_t gfx_widget_volume = {
NULL, /* init */
gfx_widget_volume_free,
gfx_widget_volume_context_reset,
gfx_widget_volume_context_destroy,
gfx_widget_volume_layout,
NULL, /* iterate */
gfx_widget_volume_frame
};
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