source: trunk/platform/sx30/sub/100n/lib.c @ 1200

#include "platform.h"

/*
sensor size from code at sub_FFB59B8C = (4464*3276)*(12/8) = 0x14EB7E0 = 21936096

@FFB59BCC = 0xea0 = 4464        // raw sensor size
@FFB59BD4 = 0xae0 = 3276
@FFB59BDC = 0xe40 = 4320        // cropped size ??
@FFB59BE4 = 0xab0 = 3240
*/

char *hook_raw_image_addr()
{
        // Appears to be two raw buffers (this returns active buffer)
        // Addresses below found in table at FFB9922C, ref at FF88883C
        // used in _sub_FF888630__SsImgProcBuf.c__0 
        // checks [0x36a0 + 0xc] --> defines which buffer is active

        if (*((int*)0x36ac) != 0)
                return (char*) 0x443B4960;
        else
                return (char*) 0x4235F6B0;      // found at (0xFFB59F40) [search CRAW BUF]
}

char *hook_alt_raw_image_addr()
{
        // Appears to be two raw buffers (this returns inactive buffer)
        // Addresses below found in table at FFB9922C, ref at FF88883C
        // used in _sub_FF888630__SsImgProcBuf.c__0 
        // checks [0x36a0 + 0xc] --> defines which buffer is active

        if (*((int*)0x36ac) == 0)
                return (char*) 0x443B4960;
        else
                return (char*) 0x4235F6B0;      // found at (0xFFB59F40) [search CRAW BUF]
}

long hook_raw_size()
{
        return 0x14EB7E0; // search CRAW BUF SIZE
}


char *camera_jpeg_count_str()
{
        return (char*)0xCF2FC; // loc_FFA3BCD8 (search "9999", passed to sprintf)
}


void *vid_get_bitmap_fb()
{
        return (void*)0x40471000; // sub_FF93062C 
}


void *vid_get_viewport_live_fb()
{
        // Values below found by searching firmware for references & usage of viewport buffer address 0x40587700
        // then experimenting to see what gave best Motion Detector speed results using http://dataghost.com/chdk/md_meter.html.
        long* t = (long*)0xFFB96AE0;                                            // Table of viewport buffer addresses (@FF853F24 in _sub_FF853DC0__LiveImage.c__10)
        unsigned char i = *((unsigned char*)(0x20a8));          // Index value (byte) stored here (@FF853F50 in _sub_FF853DC0__LiveImage.c__10)
        return (void*)t[(i-1)&3];                                                       // Appears to be 4 buffers, current index - 1 seems best
}

void *vid_get_viewport_fb()
{
        return (void*)0x40587700; // sub_FF8E8C58
}

void *vid_get_viewport_fb_d()
{
        return (void*)(*(int*)(0x32B0+0x58)); // @FF878AB0 & FF878AE8 (comp to S95)
}