Patch #1432941 - Colour support for Plasma by Mikael Magnusson
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8702 a1c6a512-1295-4272-9138-f99709370657
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index 32fec1b..3e7ca58 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -26,8 +26,8 @@
#if CONFIG_LCD != LCD_IPOD2BPP
#ifndef HAVE_LCD_COLOR
fire.c
-plasma.c
#endif
+plasma.c
jpeg.c
mandelbrot.c
#endif
diff --git a/apps/plugins/plasma.c b/apps/plugins/plasma.c
index bb2c746..f9fc80e 100644
--- a/apps/plugins/plasma.c
+++ b/apps/plugins/plasma.c
@@ -26,18 +26,26 @@
#include "plugin.h"
#ifdef HAVE_LCD_BITMAP /* and also not for the Player */
+#ifdef HAVE_LCD_COLOR
+#include "xlcd.h"
+#else
#include "gray.h"
+#endif
PLUGIN_HEADER
/******************************* Globals ***********************************/
static struct plugin_api* rb; /* global api struct pointer */
-static unsigned char *gbuf;
-static unsigned int gbuf_size = 0;
static unsigned char wave_array[256]; /* Pre calculated wave array */
static unsigned char colours[256]; /* Smooth transition of shades */
+#ifdef HAVE_LCD_COLOR
+static unsigned char colorbuffer[3*LCD_HEIGHT*LCD_WIDTH]; /* off screen buffer */
+#else
static unsigned char graybuffer[LCD_HEIGHT*LCD_WIDTH]; /* off screen buffer */
+static unsigned char *gbuf;
+static unsigned int gbuf_size = 0;
+#endif
static unsigned char sp1, sp2, sp3, sp4; /* Speed of plasma */
static int plasma_frequency;
@@ -52,6 +60,16 @@
#define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
#endif
+#ifdef HAVE_LCD_COLOR
+#if CONFIG_KEYPAD == IAUDIO_X5_PAD
+#define PLASMA_REGEN_COLORS BUTTON_SELECT
+#elif CONFIG_KEYPAD == IPOD_4G_PAD
+#define PLASMA_REGEN_COLORS BUTTON_SELECT
+#elif CONFIG_KEYPAD == IRIVER_H300_PAD
+#define PLASMA_REGEN_COLORS BUTTON_SELECT
+#endif
+#endif
+
#define WAV_AMP 90
@@ -152,7 +170,9 @@
{
(void)parameter;
+#ifndef HAVE_LCD_COLOR
gray_release();
+#endif
rb->backlight_set_timeout(rb->global_settings->backlight_timeout);
}
@@ -167,19 +187,32 @@
int shades, button, x, y;
unsigned char p1,p2,p3,p4,t1,t2,t3,t4, z;
int n=0;
-
+#ifdef HAVE_LCD_COLOR
+ int time=0;
+ int redfactor=1, greenfactor=2, bluefactor=3;
+ int redphase=0, greenphase=50, bluephase=100; /* lower chance of gray at *
+ * regular intervals */
+#endif
/*Generate the neccesary pre calced stuff*/
wave_table_generate();
shades_generate();
+#ifdef HAVE_LCD_COLOR
+ shades = 256;
+#else
/* get the remainder of the plugin buffer */
gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);
shades = gray_init(rb, gbuf, gbuf_size, false, LCD_WIDTH, LCD_HEIGHT/8,
32, NULL) + 1;
+#endif
+#ifdef HAVE_LCD_COLOR
+ xlcd_init(rb);
+#else
/* switch on grayscale overlay */
gray_show(true);
+#endif
sp1 = 4;
sp2 = 2;
sp3 = 4;
@@ -198,7 +231,15 @@
{
z = wave_array[t1] + wave_array[t2] + wave_array[t3]
+ wave_array[t4];
+#ifdef HAVE_LCD_COLOR
+ colorbuffer[n] = colours[(z+time*redfactor+redphase)%256];
+ ++n;
+ colorbuffer[n] = colours[(z+time*greenfactor+greenphase)%256];
+ ++n;
+ colorbuffer[n] = colours[(z+time*bluefactor+bluephase)%256];
+#else
graybuffer[n] = colours[z];
+#endif
t3+=1;
t4+=2;
++n;
@@ -211,7 +252,13 @@
p2-=sp2;
p3+=sp3;
p4-=sp4;
+#ifdef HAVE_LCD_COLOR
+ time++;
+ xlcd_color_bitmap(colorbuffer, 0, 0, LCD_WIDTH, LCD_HEIGHT);
+ rb->lcd_update();
+#else
gray_ub_gray_bitmap(graybuffer, 0, 0, LCD_WIDTH, LCD_HEIGHT);
+#endif
button = rb->button_get(false);
@@ -234,6 +281,16 @@
wave_table_generate();
}
break;
+#ifdef HAVE_LCD_COLOR
+ case (PLASMA_REGEN_COLORS):
+ redfactor=rb->rand()%4;
+ greenfactor=rb->rand()%4;
+ bluefactor=rb->rand()%4;
+ redphase=rb->rand()%256;
+ greenphase=rb->rand()%256;
+ bluephase=rb->rand()%256;
+ break;
+#endif
default:
if (rb->default_event_handler_ex(button, cleanup, NULL)
diff --git a/docs/CREDITS b/docs/CREDITS
index 3d67cbd..6b107cf 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -167,4 +167,4 @@
Seven Le Mesle
Craig Bachelor
Nikolaj Christensen
-
+Mikael Magnusson