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1 #pragma once
2 #include <semaphore.h>
3 
4 // The Preview FBO dimensions are determined from the high-res
5 // frame dimensions (gPreviewImageWidth, gPreviewImageHeight)
6 // using the scale factors below.
7 const int PREVIEW_FBO_WIDTH_SCALE = 2;
8 const int PREVIEW_FBO_HEIGHT_SCALE = 1;
9 
10 // The factor below determines the (horizontal) speed at which the viewfinder
11 // will pan across the UI during capture. A value of 0.0 will keep the viewfinder
12 // static in the center of the screen and 1.0f will make it pan at the
13 // same speed as the device.
14 const float VIEWFINDER_PAN_FACTOR_HORZ = 0.3f;
15 
16 // What fraction of the screen viewport width has been allocated to show the
17 // arrows on the direction of motion side.
18 const float VIEWPORT_BORDER_FACTOR_HORZ = 0.1f;
19 
20 const int LR = 0; // Low-resolution mode
21 const int HR = 1; // High-resolution mode
22 const int NR = 2; // Number of resolution modes
23 
24 const int H2L_FACTOR = 4; // Can be 2
25 
26 extern "C" void AllocateTextureMemory(int widthHR, int heightHR,
27         int widthLR, int heightLR);
28 extern "C" void FreeTextureMemory();
29 extern "C" void UpdateWarpTransformation(float *trs);
30 
31 extern unsigned char* gPreviewImage[NR];
32 extern int gPreviewImageWidth[NR];
33 extern int gPreviewImageHeight[NR];
34 
35 extern sem_t gPreviewImage_semaphore;
36