refactoring

This commit is contained in:
Devaev Maxim
2019-03-06 05:18:26 +03:00
parent 01e21e419d
commit 351da0dce0
2 changed files with 16 additions and 11 deletions

View File

@@ -133,7 +133,10 @@ static void _jpeg_set_dest_picture(j_compress_ptr jpeg, unsigned char *picture,
dest->written = written;
}
#define NORM_COMPONENT(_x) (((_x) > 255) ? 255 : (((_x) < 0) ? 0 : (_x)))
#define YUV_R(_y, _, _v) (((_y) + (359 * (_v))) >> 8)
#define YUV_G(_y, _u, _v) (((_y) - (88 * (_u)) - (183 * (_v))) >> 8)
#define YUV_B(_y, _u, _) (((_y) + (454 * (_u))) >> 8)
#define NORM_COMPONENT(_x) (((_x) > 255) ? 255 : (((_x) < 0) ? 0 : (_x)))
static void _jpeg_write_scanlines_yuyv(
struct jpeg_compress_struct *jpeg, const unsigned char *data,
@@ -153,9 +156,9 @@ static void _jpeg_write_scanlines_yuyv(
int u = data[1] - 128;
int v = data[3] - 128;
int r = (y + (359 * v)) >> 8;
int g = (y - (88 * u) - (183 * v)) >> 8;
int b = (y + (454 * u)) >> 8;
int r = YUV_R(y, u, v);
int g = YUV_G(y, u, v);
int b = YUV_B(y, u, v);
*(ptr++) = NORM_COMPONENT(r);
*(ptr++) = NORM_COMPONENT(g);
@@ -192,9 +195,9 @@ static void _jpeg_write_scanlines_uyvy(
int u = data[0] - 128;
int v = data[2] - 128;
int r = (y + (359 * v)) >> 8;
int g = (y - (88 * u) - (183 * v)) >> 8;
int b = (y + (454 * u)) >> 8;
int r = YUV_R(y, u, v);
int g = YUV_G(y, u, v);
int b = YUV_B(y, u, v);
*(ptr++) = NORM_COMPONENT(r);
*(ptr++) = NORM_COMPONENT(g);
@@ -214,6 +217,9 @@ static void _jpeg_write_scanlines_uyvy(
}
#undef NORM_COMPONENT
#undef YUV_B
#undef YUV_G
#undef YUV_R
static void _jpeg_write_scanlines_rgb565(
struct jpeg_compress_struct *jpeg, const unsigned char *data,
@@ -230,9 +236,9 @@ static void _jpeg_write_scanlines_rgb565(
for(unsigned x = 0; x < width; ++x) {
unsigned int two_byte = (data[1] << 8) + data[0];
*(ptr++) = data[1] & 248;
*(ptr++) = (unsigned char)((two_byte & 2016) >> 3);
*(ptr++) = (data[0] & 31) * 8;
*(ptr++) = data[1] & 248; // Red
*(ptr++) = (unsigned char)((two_byte & 2016) >> 3); // Green
*(ptr++) = (data[0] & 31) * 8; // Blue
data += 2;
}

View File

@@ -76,7 +76,6 @@ void hw_encoder_compress_buffer(struct device_t *dev, unsigned index) {
# undef PICTURE
}
static bool _is_huffman(const unsigned char *data) {
unsigned count = 0;