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#ifndef TEST_H
#define TEST_H
#include <stdint.h>
#include <X11/Xlib.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/Xrender.h>
#define DEFAULT_ITERATIONS 20
enum target {
ROOT,
CHILD,
PIXMAP,
};
#define TARGET_FIRST ROOT
#define TARGET_LAST PIXMAP
enum mask {
MASK_NONE,
MASK_NONE_AA,
MASK_A1,
MASK_A8,
};
struct test {
struct test_display {
Display *dpy;
Window root;
XShmSegmentInfo shm;
int max_shm_size;
int width, height;
XRenderPictFormat *format;
} real, ref;
};
void die(const char *fmt, ...);
#define die_unless(expr) do{ if (!(expr)) die("verification failed: %s\n", #expr); } while(0)
void test_init(struct test *test, int argc, char **argv);
void test_compare(struct test *real,
Drawable real_draw, XRenderPictFormat *real_format,
Drawable ref_draw, XRenderPictFormat *ref_format,
int x, int y, int w, int h);
#define MAX_DELTA 3
int pixel_difference(uint32_t a, uint32_t b);
static inline int pixel_equal(int depth, uint32_t a, uint32_t b)
{
uint32_t mask;
if (depth == 32)
mask = 0xffffffff;
else
mask = (1 << depth) - 1;
a &= mask;
b &= mask;
if (a == b)
return 1;
return pixel_difference(a, b) < MAX_DELTA;
}
void
test_init_image(XImage *ximage,
XShmSegmentInfo *shm,
XRenderPictFormat *format,
int width, int height);
const char *test_target_name(enum target target);
struct test_target {
struct test_display *dpy;
Drawable draw;
GC gc;
XRenderPictFormat *format;
Picture picture;
int width, height;
enum target target;
};
void test_target_create_render(struct test_display *dpy,
enum target target,
struct test_target *tt);
void test_target_destroy_render(struct test_display *dpy,
struct test_target *tt);
static inline uint32_t depth_mask(int depth)
{
if (depth == 32)
return 0xffffffff;
else
return (1 << depth) - 1;
}
static inline uint32_t color(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
{
uint16_t ra = red * alpha;
uint16_t ga = green * alpha;
uint16_t ba = blue * alpha;
return alpha << 24 | ra >> 8 << 16 | ga >> 8 << 8 | ba >> 8;
}
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#endif
#endif
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