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-rw-r--r--camera/libcameraservice/FakeCamera.cpp404
1 files changed, 0 insertions, 404 deletions
diff --git a/camera/libcameraservice/FakeCamera.cpp b/camera/libcameraservice/FakeCamera.cpp
deleted file mode 100644
index 3592eab..0000000
--- a/camera/libcameraservice/FakeCamera.cpp
+++ /dev/null
@@ -1,404 +0,0 @@
-#define LOG_TAG "FakeCamera"
-#include <utils/Log.h>
-
-#include <string.h>
-#include <stdlib.h>
-#include "FakeCamera.h"
-
-namespace android {
-
-static int tables_initialized = 0;
-uint8_t *gYTable, *gCbTable, *gCrTable;
-
-static int
-clamp(int x)
-{
- if (x > 255) return 255;
- if (x < 0) return 0;
- return x;
-}
-
-/* the equation used by the video code to translate YUV to RGB looks like this
- *
- * Y = (Y0 - 16)*k0
- * Cb = Cb0 - 128
- * Cr = Cr0 - 128
- *
- * G = ( Y - k1*Cr - k2*Cb )
- * R = ( Y + k3*Cr )
- * B = ( Y + k4*Cb )
- *
- */
-
-static const double k0 = 1.164;
-static const double k1 = 0.813;
-static const double k2 = 0.391;
-static const double k3 = 1.596;
-static const double k4 = 2.018;
-
-/* let's try to extract the value of Y
- *
- * G + k1/k3*R + k2/k4*B = Y*( 1 + k1/k3 + k2/k4 )
- *
- * Y = ( G + k1/k3*R + k2/k4*B ) / (1 + k1/k3 + k2/k4)
- * Y0 = ( G0 + k1/k3*R0 + k2/k4*B0 ) / ((1 + k1/k3 + k2/k4)*k0) + 16
- *
- * let define:
- * kYr = k1/k3
- * kYb = k2/k4
- * kYy = k0 * ( 1 + kYr + kYb )
- *
- * we have:
- * Y = ( G + kYr*R + kYb*B )
- * Y0 = clamp[ Y/kYy + 16 ]
- */
-
-static const double kYr = k1/k3;
-static const double kYb = k2/k4;
-static const double kYy = k0*( 1. + kYr + kYb );
-
-static void
-initYtab( void )
-{
- const int imax = (int)( (kYr + kYb)*(31 << 2) + (61 << 3) + 0.1 );
- int i;
-
- gYTable = (uint8_t *)malloc(imax);
-
- for(i=0; i<imax; i++) {
- int x = (int)(i/kYy + 16.5);
- if (x < 16) x = 16;
- else if (x > 235) x = 235;
- gYTable[i] = (uint8_t) x;
- }
-}
-
-/*
- * the source is RGB565, so adjust for 8-bit range of input values:
- *
- * G = (pixels >> 3) & 0xFC;
- * R = (pixels >> 8) & 0xF8;
- * B = (pixels & 0x1f) << 3;
- *
- * R2 = (pixels >> 11) R = R2*8
- * B2 = (pixels & 0x1f) B = B2*8
- *
- * kYr*R = kYr2*R2 => kYr2 = kYr*8
- * kYb*B = kYb2*B2 => kYb2 = kYb*8
- *
- * we want to use integer multiplications:
- *
- * SHIFT1 = 9
- *
- * (ALPHA*R2) >> SHIFT1 == R*kYr => ALPHA = kYr*8*(1 << SHIFT1)
- *
- * ALPHA = kYr*(1 << (SHIFT1+3))
- * BETA = kYb*(1 << (SHIFT1+3))
- */
-
-static const int SHIFT1 = 9;
-static const int ALPHA = (int)( kYr*(1 << (SHIFT1+3)) + 0.5 );
-static const int BETA = (int)( kYb*(1 << (SHIFT1+3)) + 0.5 );
-
-/*
- * now let's try to get the values of Cb and Cr
- *
- * R-B = (k3*Cr - k4*Cb)
- *
- * k3*Cr = k4*Cb + (R-B)
- * k4*Cb = k3*Cr - (R-B)
- *
- * R-G = (k1+k3)*Cr + k2*Cb
- * = (k1+k3)*Cr + k2/k4*(k3*Cr - (R-B)/k0)
- * = (k1 + k3 + k2*k3/k4)*Cr - k2/k4*(R-B)
- *
- * kRr*Cr = (R-G) + kYb*(R-B)
- *
- * Cr = ((R-G) + kYb*(R-B))/kRr
- * Cr0 = clamp(Cr + 128)
- */
-
-static const double kRr = (k1 + k3 + k2*k3/k4);
-
-static void
-initCrtab( void )
-{
- uint8_t *pTable;
- int i;
-
- gCrTable = (uint8_t *)malloc(768*2);
-
- pTable = gCrTable + 384;
- for(i=-384; i<384; i++)
- pTable[i] = (uint8_t) clamp( i/kRr + 128.5 );
-}
-
-/*
- * B-G = (k2 + k4)*Cb + k1*Cr
- * = (k2 + k4)*Cb + k1/k3*(k4*Cb + (R-B))
- * = (k2 + k4 + k1*k4/k3)*Cb + k1/k3*(R-B)
- *
- * kBb*Cb = (B-G) - kYr*(R-B)
- *
- * Cb = ((B-G) - kYr*(R-B))/kBb
- * Cb0 = clamp(Cb + 128)
- *
- */
-
-static const double kBb = (k2 + k4 + k1*k4/k3);
-
-static void
-initCbtab( void )
-{
- uint8_t *pTable;
- int i;
-
- gCbTable = (uint8_t *)malloc(768*2);
-
- pTable = gCbTable + 384;
- for(i=-384; i<384; i++)
- pTable[i] = (uint8_t) clamp( i/kBb + 128.5 );
-}
-
-/*
- * SHIFT2 = 16
- *
- * DELTA = kYb*(1 << SHIFT2)
- * GAMMA = kYr*(1 << SHIFT2)
- */
-
-static const int SHIFT2 = 16;
-static const int DELTA = kYb*(1 << SHIFT2);
-static const int GAMMA = kYr*(1 << SHIFT2);
-
-int32_t ccrgb16toyuv_wo_colorkey(uint8_t *rgb16,uint8_t *yuv422,uint32_t *param,uint8_t *table[])
-{
- uint16_t *inputRGB = (uint16_t*)rgb16;
- uint8_t *outYUV = yuv422;
- int32_t width_dst = param[0];
- int32_t height_dst = param[1];
- int32_t pitch_dst = param[2];
- int32_t mheight_dst = param[3];
- int32_t pitch_src = param[4];
- uint8_t *y_tab = table[0];
- uint8_t *cb_tab = table[1];
- uint8_t *cr_tab = table[2];
-
- int32_t size16 = pitch_dst*mheight_dst;
- int32_t i,j,count;
- int32_t ilimit,jlimit;
- uint8_t *tempY,*tempU,*tempV;
- uint16_t pixels;
- int tmp;
-uint32_t temp;
-
- tempY = outYUV;
- tempU = outYUV + (height_dst * pitch_dst);
- tempV = tempU + 1;
-
- jlimit = height_dst;
- ilimit = width_dst;
-
- for(j=0; j<jlimit; j+=1)
- {
- for (i=0; i<ilimit; i+=2)
- {
- int32_t G_ds = 0, B_ds = 0, R_ds = 0;
- uint8_t y0, y1, u, v;
-
- pixels = inputRGB[i];
- temp = (ALPHA*(pixels & 0x001F) + BETA*(pixels>>11) );
- y0 = y_tab[(temp>>SHIFT1) + ((pixels>>3) & 0x00FC)];
-
- G_ds += (pixels>>1) & 0x03E0;
- B_ds += (pixels<<5) & 0x03E0;
- R_ds += (pixels>>6) & 0x03E0;
-
- pixels = inputRGB[i+1];
- temp = (ALPHA*(pixels & 0x001F) + BETA*(pixels>>11) );
- y1 = y_tab[(temp>>SHIFT1) + ((pixels>>3) & 0x00FC)];
-
- G_ds += (pixels>>1) & 0x03E0;
- B_ds += (pixels<<5) & 0x03E0;
- R_ds += (pixels>>6) & 0x03E0;
-
- R_ds >>= 1;
- B_ds >>= 1;
- G_ds >>= 1;
-
- tmp = R_ds - B_ds;
-
- u = cb_tab[(((R_ds-G_ds)<<SHIFT2) + DELTA*tmp)>>(SHIFT2+2)];
- v = cr_tab[(((B_ds-G_ds)<<SHIFT2) - GAMMA*tmp)>>(SHIFT2+2)];
-
- tempY[0] = y0;
- tempY[1] = y1;
- tempU[0] = u;
- tempV[0] = v;
-
- tempY += 2;
- tempU += 2;
- tempV += 2;
- }
-
- inputRGB += pitch_src;
- }
-
- return 1;
-}
-
-#define min(a,b) ((a)<(b)?(a):(b))
-#define max(a,b) ((a)>(b)?(a):(b))
-
-static void convert_rgb16_to_yuv422(uint8_t *rgb, uint8_t *yuv, int width, int height)
-{
- if (!tables_initialized) {
- initYtab();
- initCrtab();
- initCbtab();
- tables_initialized = 1;
- }
-
- uint32_t param[6];
- param[0] = (uint32_t) width;
- param[1] = (uint32_t) height;
- param[2] = (uint32_t) width;
- param[3] = (uint32_t) height;
- param[4] = (uint32_t) width;
- param[5] = (uint32_t) 0;
-
- uint8_t *table[3];
- table[0] = gYTable;
- table[1] = gCbTable + 384;
- table[2] = gCrTable + 384;
-
- ccrgb16toyuv_wo_colorkey(rgb, yuv, param, table);
-}
-
-const int FakeCamera::kRed;
-const int FakeCamera::kGreen;
-const int FakeCamera::kBlue;
-
-FakeCamera::FakeCamera(int width, int height)
- : mTmpRgb16Buffer(0)
-{
- setSize(width, height);
-}
-
-FakeCamera::~FakeCamera()
-{
- delete[] mTmpRgb16Buffer;
-}
-
-void FakeCamera::setSize(int width, int height)
-{
- mWidth = width;
- mHeight = height;
- mCounter = 0;
- mCheckX = 0;
- mCheckY = 0;
-
- // This will cause it to be reallocated on the next call
- // to getNextFrameAsYuv422().
- delete[] mTmpRgb16Buffer;
- mTmpRgb16Buffer = 0;
-}
-
-void FakeCamera::getNextFrameAsRgb565(uint16_t *buffer)
-{
- int size = mWidth / 10;
-
- drawCheckerboard(buffer, size);
-
- int x = ((mCounter*3)&255);
- if(x>128) x = 255 - x;
- int y = ((mCounter*5)&255);
- if(y>128) y = 255 - y;
-
- drawSquare(buffer, x*size/32, y*size/32, (size*5)>>1, (mCounter&0x100)?kRed:kGreen, kBlue);
-
- mCounter++;
-}
-
-void FakeCamera::getNextFrameAsYuv422(uint8_t *buffer)
-{
- if (mTmpRgb16Buffer == 0)
- mTmpRgb16Buffer = new uint16_t[mWidth * mHeight];
-
- getNextFrameAsRgb565(mTmpRgb16Buffer);
- convert_rgb16_to_yuv422((uint8_t*)mTmpRgb16Buffer, buffer, mWidth, mHeight);
-}
-
-void FakeCamera::drawSquare(uint16_t *dst, int x, int y, int size, int color, int shadow)
-{
- int square_xstop, square_ystop, shadow_xstop, shadow_ystop;
-
- square_xstop = min(mWidth, x+size);
- square_ystop = min(mHeight, y+size);
- shadow_xstop = min(mWidth, x+size+(size/4));
- shadow_ystop = min(mHeight, y+size+(size/4));
-
- // Do the shadow.
- uint16_t *sh = &dst[(y+(size/4))*mWidth];
- for (int j = y + (size/4); j < shadow_ystop; j++) {
- for (int i = x + (size/4); i < shadow_xstop; i++) {
- sh[i] &= shadow;
- }
- sh += mWidth;
- }
-
- // Draw the square.
- uint16_t *sq = &dst[y*mWidth];
- for (int j = y; j < square_ystop; j++) {
- for (int i = x; i < square_xstop; i++) {
- sq[i] = color;
- }
- sq += mWidth;
- }
-}
-
-void FakeCamera::drawCheckerboard(uint16_t *dst, int size)
-{
- bool black = true;
-
- if((mCheckX/size)&1)
- black = false;
- if((mCheckY/size)&1)
- black = !black;
-
- int county = mCheckY%size;
- int checkxremainder = mCheckX%size;
-
- for(int y=0;y<mHeight;y++) {
- int countx = checkxremainder;
- bool current = black;
- for(int x=0;x<mWidth;x++) {
- dst[y*mWidth+x] = current?0:0xffff;
- if(countx++ >= size) {
- countx=0;
- current = !current;
- }
- }
- if(county++ >= size) {
- county=0;
- black = !black;
- }
- }
- mCheckX += 3;
- mCheckY++;
-}
-
-
-status_t FakeCamera::dump(int fd, const Vector<String16>& args)
-{
- const size_t SIZE = 256;
- char buffer[SIZE];
- String8 result;
- snprintf(buffer, 255, " width x height (%d x %d), counter (%d), check x-y coordinate(%d, %d)\n", mWidth, mHeight, mCounter, mCheckX, mCheckY);
- result.append(buffer);
- ::write(fd, result.string(), result.size());
- return NO_ERROR;
-}
-
-
-}; // namespace android
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