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libvisual-plugins: Base rotation on runtime not FPS for actor "lv_gltest" #163

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Merged
hartwork merged 1 commit into from
Jan 14, 2023
Merged

libvisual-plugins: Base rotation on runtime not FPS for actor "lv_gltest" #163

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46 changes: 27 additions & 19 deletions libvisual-plugins/plugins/actor/lv_gltest/actor_lv_gltest.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,14 +42,19 @@ static int xranges[] = {0, 1, 2, 3, 5, 7, 10, 14, 20, 28, 40, 54, 74, 101, 137,

typedef struct {
GLfloat y_angle;
GLfloat y_speed;
GLfloat y_initial_angle;
GLfloat y_speed; // degrees per second
GLfloat x_angle;
GLfloat x_speed;
GLfloat x_initial_angle;
GLfloat x_speed; // degrees per second
GLfloat z_angle;
GLfloat z_speed;
GLfloat z_initial_angle;
GLfloat z_speed; // degrees per second
GLfloat heights[16][16];

int transparent;

VisTimer * started_at;
} GLtestPrivate;

static int lv_gltest_init (VisPluginData *plugin);
Expand Down Expand Up @@ -148,12 +153,17 @@ static int lv_gltest_init (VisPluginData *plugin)
}
}

priv->x_speed = 0.0;
priv->y_speed = 0.5;
priv->z_speed = 0.0;
priv->x_angle = 20.0;
priv->y_angle = 45.0;
priv->z_angle = 0.0;
priv->x_speed = 0.0f;
priv->y_speed = 360.0f / 13.0f;
priv->z_speed = 0.0f;
priv->x_initial_angle = 20.0f;
priv->y_initial_angle = 45.0f;
priv->z_initial_angle = 0.0f;

priv->started_at = visual_timer_new();
visual_return_val_if_fail( priv->started_at != NULL, -1 );

visual_timer_start(priv->started_at);

return TRUE;
}
Expand All @@ -162,6 +172,10 @@ static void lv_gltest_cleanup (VisPluginData *plugin)
{
GLtestPrivate *priv = visual_plugin_get_private (plugin);

if (priv) {
visual_timer_free (priv->started_at);
}

visual_mem_free (priv);
}

Expand Down Expand Up @@ -276,17 +290,11 @@ static void lv_gltest_render (VisPluginData *plugin, VisVideo *video, VisAudio *
priv->heights[0][i] = ff * 10;
}

priv->x_angle += priv->x_speed;
if (priv->x_angle >= 360.0)
priv->x_angle -= 360.0;

priv->y_angle += priv->y_speed;
if (priv->y_angle >= 360.0)
priv->y_angle -= 360.0;
const float seconds_elapsed = visual_timer_elapsed_msecs(priv->started_at) / 1000.0f;

priv->z_angle += priv->z_speed;
if (priv->z_angle >= 360.0)
priv->z_angle -= 360.0;
priv->x_angle = fmodf(priv->x_initial_angle + priv->x_speed * seconds_elapsed, 360.0);
priv->y_angle = fmodf(priv->y_initial_angle + priv->y_speed * seconds_elapsed, 360.0);
priv->z_angle = fmodf(priv->z_initial_angle + priv->z_speed * seconds_elapsed, 360.0);

draw_bars (priv);

Expand Down