source: branches/philmoz/platform/sx40hs/lib.c @ 1401

#include "platform.h"
#include "lolevel.h"

void vid_bitmap_refresh()
{
        extern int full_screen_refresh;
        extern void _ScreenUnlock();
        extern void _ScreenLock();

        full_screen_refresh |= 3;
        _ScreenLock();
        _ScreenUnlock();
}


void shutdown()
{
        volatile long *p = (void*)0xC022001C;

        asm(
                "MRS     R1, CPSR\n"
                "AND     R0, R1, #0x80\n"
                "ORR     R1, R1, #0x80\n"
                "MSR     CPSR_cf, R1\n"
                :::"r1","r0");

        *p = 0x44;  // power off.

        while(1);
}

#define LED_PR 0xC0220130       // Power LED

// TODO = this uses power LED, need to disable later (so power LED doesn't flicker)
void debug_led(int state)
{
 //*(int*)LED_PR=state ? 0x46 : 0x44;
}

// SX40 has two 'lights' - Power LED, and AF assist lamp
// Power Led = first entry in table (led 0)
// AF Assist Lamp = second entry in table (led 1)
void camera_set_led(int led, int state, int bright) {
 static char led_table[2]={3,9};
 _LEDDrive(led_table[led%sizeof(led_table)], state<=1 ? !state : state);
}

int get_flash_params_count(void) { return 0x9f; }              // Found @0xff205db4

void JogDial_CW(void){
 _PostLogicalEventForNotPowerType(0x872, 1);  // RotateJogDialRight (in table @ FF593E50, fw 1.00g)
}

void JogDial_CCW(void){
 _PostLogicalEventForNotPowerType(0x873, 1);  // RotateJogDialLeft (in table @ FF593E5C, fw 1.00g)
}

// Viewport and Bitmap values that shouldn't change across firmware versions.
// Values that may change are in lib.c for each firmware version.

long vid_get_bitmap_screen_width() { return 360; }
long vid_get_bitmap_screen_height() { return 240; }
long vid_get_bitmap_buffer_width() { return 960; }
long vid_get_bitmap_buffer_height() { return 270; }

int vid_get_viewport_width()
{
        // viewport width table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_w[5] = { 360, 360, 360, 272 };
        return vp_w[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

int vid_get_viewport_xoffset()
{
        // viewport width offset table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_w[5] = { 0, 0, 0, 44 };                          // should all be even values for edge overlay
        return vp_w[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

long vid_get_viewport_height()
{
        // viewport height table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_h[5] = { 240, 180, 214, 240 };
        return vp_h[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

int vid_get_viewport_yoffset()
{
        // viewport height offset table for each image size
        // 0 = 4:3, 1 = 16:9, 2 = 3:2, 3 = 1:1
        static long vp_h[5] = { 0, 30, 13, 0 };
        return vp_h[shooting_get_prop(PROPCASE_ASPECT_RATIO)];
}

// viewport image offset - used when image size != viewport size (zebra, histogram, motion detect & edge overlay)
// returns the byte offset into the viewport buffer where the image pixels start (to skip any black borders)
int vid_get_viewport_image_offset() {
        return (vid_get_viewport_yoffset() * vid_get_viewport_buffer_width() + vid_get_viewport_xoffset()) * 3;
}

// Functions for PTP Live View system

int vid_get_viewport_yoffset_proper()           { return vid_get_viewport_yoffset(); }
int vid_get_viewport_height_proper()            { return vid_get_viewport_height(); }
int vid_get_palette_type()                      { return 3; }
int vid_get_palette_size()                      { return 256 * 4; }

void *vid_get_bitmap_active_buffer()
{
    extern int active_bitmap_buffer;
    extern char* bitmap_buffer[];
    return bitmap_buffer[active_bitmap_buffer];
}

void *vid_get_bitmap_active_palette()
{
    extern int active_palette_buffer;
    extern char* palette_buffer[];
    return (palette_buffer[active_palette_buffer]+4);
}

// Function to load CHDK custom colors into active Canon palette
void load_chdk_palette()
{
    extern int active_palette_buffer;
    // Only load for the standard record and playback palettes
    if ((active_palette_buffer == 0) || (active_palette_buffer == 3) || (active_palette_buffer == 6))
    {
        int *pal = (int*)vid_get_bitmap_active_palette();
        if (pal[CHDK_COLOR_BASE+0] != 0x33ADF62)
        {
            pal[CHDK_COLOR_BASE+0]  = 0x33ADF62;  // Red
            pal[CHDK_COLOR_BASE+1]  = 0x326EA40;  // Dark Red
            pal[CHDK_COLOR_BASE+2]  = 0x34CD57F;  // Light Red
            pal[CHDK_COLOR_BASE+3]  = 0x373BFAE;  // Green
            pal[CHDK_COLOR_BASE+4]  = 0x34BD6CA;  // Dark Green
            pal[CHDK_COLOR_BASE+5]  = 0x395AB95;  // Light Green
            pal[CHDK_COLOR_BASE+6]  = 0x34766F0;  // Blue
            pal[CHDK_COLOR_BASE+7]  = 0x31250F3;  // Dark Blue
            pal[CHDK_COLOR_BASE+8]  = 0x37F408F;  // Cyan
            pal[CHDK_COLOR_BASE+9]  = 0x3512D5B;  // Magenta
            pal[CHDK_COLOR_BASE+10] = 0x3A9A917;  // Yellow
            pal[CHDK_COLOR_BASE+11] = 0x3819137;  // Dark Yellow
            pal[CHDK_COLOR_BASE+12] = 0x3DED115;  // Light Yellow

            extern char palette_control;
            palette_control = 1;
            vid_bitmap_refresh();
        }
    }
}