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Documented pixy_helper and implemented/finished photo-mode screens! Snap some shots!

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This commit is contained in:
t-moe
2015-05-16 00:11:19 +02:00
parent 27c09bad0d
commit 62006e0028
9 changed files with 532 additions and 55 deletions
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85
common/app/pixy_helper.c
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@@ -6,6 +6,7 @@
static int renderBA81(uint16_t xpos, uint16_t ypos, uint16_t width, uint16_t height, uint32_t frameLen, uint8_t *frame);
static int saveBA81(FILE_HANDLE* handle, uint16_t width, uint16_t height, uint32_t frameLen, uint8_t *frame);
int pixy_render_full_frame(uint16_t x, uint16_t y) {
@@ -46,6 +47,44 @@ int pixy_render_cropped_frame(uint16_t x, uint16_t y, uint16_t xoffset, uint16_t
return return_value;
}
int pixy_save_full_frame(FILE_HANDLE* handle) {
return pixy_save_cropped_frame(handle,0,0,320,200);
}
int pixy_save_cropped_frame(FILE_HANDLE* handle, uint16_t xoffset, uint16_t yoffset, uint16_t width, uint16_t height) {
uint8_t* videodata;
int32_t response;
int32_t fourccc;
int8_t renderflags;
uint16_t xwidth;
uint16_t ywidth;
uint32_t size;
int return_value = pixy_command("cam_getFrame", // String id for remote procedure
INT8(0x21), // mode
INT16(xoffset), // xoffset
INT16(yoffset), // yoffset
INT16(width), // width
INT16(height), // height
END_OUT_ARGS, // separator
&response, // pointer to mem address for return value
&fourccc,
&renderflags,
&xwidth,
&ywidth,
&size,
&videodata, // pointer to mem address for returned frame
END_IN_ARGS);
if(return_value==0) {
return_value = saveBA81(handle,xwidth,ywidth,size,videodata);
}
return return_value;
}
@@ -105,7 +144,6 @@ static int renderBA81(uint16_t xpos, uint16_t ypos, uint16_t width, uint16_t hei
if(decodedimage==NULL) { //not enough free space to decode image in memory
//decode & render image pixel by pixel
uint16_t* line = decodedimage;
for (y=1; y<height-1; y++)
{
frame++;
@@ -138,3 +176,48 @@ static int renderBA81(uint16_t xpos, uint16_t ypos, uint16_t width, uint16_t hei
return 0;
}
static int saveBA81(FILE_HANDLE* handle, uint16_t width, uint16_t height, uint32_t frameLen, uint8_t *frame)
{
uint16_t x, y;
uint8_t r, g, b;
uint32_t fpos = handle->fpos;
uint32_t row_size_padded = ((width-2)*3 + 3) & (~3); //row size aligned to 4 bytes
uint32_t fpos_end = fpos + row_size_padded* (height-2);
// skip first line
frame += width;
// don't render top and bottom rows, and left and rightmost columns because of color
// interpolation
for (y=1; y<height-1; y++)
{
frame++;
uint8_t rowbuf[row_size_padded];
//Bitmaps are saved "bottom-up". Seek to the right row.
if(filesystem_file_seek(handle,fpos_end-row_size_padded*y)!=F_OK) {
return -1;
}
for (x=1; x<width-1; x++, frame++)
{
interpolateBayer(width, x, y, frame, &r, &g, &b);
//bitmaps are saved in 24bit b,g,r format
rowbuf[(x-1)*3] = b;
rowbuf[(x-1)*3+1] = g;
rowbuf[(x-1)*3+2] = r;
}
if(filesystem_file_write(handle,rowbuf,row_size_padded)!=F_OK) {
return -1;
}
frame++;
}
return 0;
}