diff options
Diffstat (limited to 'tests/rotozoom.c')
-rw-r--r-- | tests/rotozoom.c | 136 |
1 files changed, 7 insertions, 129 deletions
diff --git a/tests/rotozoom.c b/tests/rotozoom.c index a18667aa10..afe16822fd 100644 --- a/tests/rotozoom.c +++ b/tests/rotozoom.c @@ -24,6 +24,8 @@ #include <stdio.h> #include <inttypes.h> +#include "utils.c" + #define FIXP (1 << 16) #define MY_PI 205887 // (M_PI * FIX) @@ -53,136 +55,12 @@ static int64_t int_sin(int64_t a) return a - int_pow(a, 3) / 6 + int_pow(a, 5) / 120 - int_pow(a, 7) / 5040; } -#define SCALEBITS 8 -#define ONE_HALF (1 << (SCALEBITS - 1)) -#define FIX(x) ((int) ((x) * (1L << SCALEBITS) + 0.5)) - -static void rgb24_to_yuv420p(unsigned char *lum, unsigned char *cb, - unsigned char *cr, const unsigned char *src, - int width, int height) -{ - int wrap, wrap3, x, y; - int r, g, b, r1, g1, b1; - const unsigned char *p; - - wrap = width; - wrap3 = width * 3; - p = src; - for (y = 0; y < height; y += 2) { - for (x = 0; x < width; x += 2) { - r = p[0]; - g = p[1]; - b = p[2]; - r1 = r; - g1 = g; - b1 = b; - lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - r = p[3]; - g = p[4]; - b = p[5]; - r1 += r; - g1 += g; - b1 += b; - lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - p += wrap3; - lum += wrap; - - r = p[0]; - g = p[1]; - b = p[2]; - r1 += r; - g1 += g; - b1 += b; - lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - r = p[3]; - g = p[4]; - b = p[5]; - r1 += r; - g1 += g; - b1 += b; - lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - - cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + - FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; - cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 - - FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; - - cb++; - cr++; - p += -wrap3 + 2 * 3; - lum += -wrap + 2; - } - p += wrap3; - lum += wrap; - } -} - -/* cif format */ -#define DEFAULT_WIDTH 352 -#define DEFAULT_HEIGHT 288 -#define DEFAULT_NB_PICT 50 - -static void pgmyuv_save(const char *filename, int w, int h, - unsigned char *rgb_tab) -{ - FILE *f; - int i, h2, w2; - unsigned char *cb, *cr; - unsigned char *lum_tab, *cb_tab, *cr_tab; - - lum_tab = malloc(w * h); - cb_tab = malloc(w * h / 4); - cr_tab = malloc(w * h / 4); - - rgb24_to_yuv420p(lum_tab, cb_tab, cr_tab, rgb_tab, w, h); - - f = fopen(filename, "wb"); - fprintf(f, "P5\n%d %d\n%d\n", w, h * 3 / 2, 255); - fwrite(lum_tab, 1, w * h, f); - h2 = h / 2; - w2 = w / 2; - cb = cb_tab; - cr = cr_tab; - for (i = 0; i < h2; i++) { - fwrite(cb, 1, w2, f); - fwrite(cr, 1, w2, f); - cb += w2; - cr += w2; - } - fclose(f); - - free(lum_tab); - free(cb_tab); - free(cr_tab); -} - -unsigned char *rgb_tab; -int width, height, wrap; - -static void put_pixel(int x, int y, int r, int g, int b) -{ - unsigned char *p; - - if (x < 0 || x >= width || - y < 0 || y >= height) - return; - - p = rgb_tab + y * wrap + x * 3; - p[0] = r; - p[1] = g; - p[2] = b; -} - -unsigned char tab_r[256 * 256]; -unsigned char tab_g[256 * 256]; -unsigned char tab_b[256 * 256]; +static unsigned char tab_r[256 * 256]; +static unsigned char tab_g[256 * 256]; +static unsigned char tab_b[256 * 256]; -int h_cos[360]; -int h_sin[360]; +static int h_cos[360]; +static int h_sin[360]; static int ipol(uint8_t *src, int x, int y) { |