diff options
Diffstat (limited to 'test/coverage.c')
| -rw-r--r-- | test/coverage.c | 122 |
1 files changed, 62 insertions, 60 deletions
diff --git a/test/coverage.c b/test/coverage.c index 86216df31..0749fa22a 100644 --- a/test/coverage.c +++ b/test/coverage.c @@ -50,9 +50,9 @@ hars_petruska_f54_1_random (void) } static double -random_offset (int range, int precise) +random_offset (int range, int precise, int width) { - double x = hars_petruska_f54_1_random() / (double) UINT32_MAX * range / WIDTH; + double x = hars_petruska_f54_1_random() / (double) UINT32_MAX * range / width; if (precise) x = floor (x * PRECISION) / PRECISION; return x; @@ -69,9 +69,9 @@ rectangles (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * x * 1.0 / (WIDTH * WIDTH)); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 1.0 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -84,11 +84,11 @@ rectangles (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - for (y = 0; y < HEIGHT; y++) { - double dx = random_offset (WIDTH - x, TRUE); - double dy = random_offset (WIDTH - x, TRUE); - cairo_rectangle (cr, x + dx, y + dy, x / (double) WIDTH, x / (double) WIDTH); + for (x = 0; x < width; x++) { + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); + cairo_rectangle (cr, x + dx, y + dy, x / (double) width, x / (double) width); } } cairo_fill (cr); @@ -102,15 +102,16 @@ static cairo_test_status_t rhombus (cairo_t *cr, int width, int height) { int x, y; + int internal_size = width / 2; cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); cairo_paint (cr); #if GENERATE_REFERENCE - for (y = 0; y < WIDTH; y++) { - for (x = 0; x < WIDTH; x++) { + for (y = 0; y < internal_size; y++) { + for (x = 0; x < internal_size; x++) { cairo_set_source_rgba (cr, 1, 1, 1, - x * y / (2. * WIDTH * WIDTH)); + x * y / (2. * internal_size * internal_size)); cairo_rectangle (cr, 2*x, 2*y, 2, 2); cairo_fill (cr); } @@ -119,10 +120,10 @@ rhombus (cairo_t *cr, int width, int height) cairo_set_operator (cr, CAIRO_OPERATOR_OVER); cairo_set_source_rgb (cr, 1, 1, 1); - for (y = 0; y < WIDTH; y++) { - double yf = y / (double) WIDTH; - for (x = 0; x < WIDTH; x++) { - double xf = x / (double) WIDTH; + for (y = 0; y < internal_size; y++) { + double yf = y / (double) internal_size; + for (x = 0; x < internal_size; x++) { + double xf = x / (double) internal_size; cairo_move_to (cr, 2*x + 1 - xf, @@ -157,9 +158,9 @@ intersecting_quads (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (WIDTH * WIDTH)); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -172,11 +173,11 @@ intersecting_quads (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - double step = x / (double) WIDTH; - for (y = 0; y < HEIGHT; y++) { - double dx = random_offset (WIDTH - x, TRUE); - double dy = random_offset (WIDTH - x, TRUE); + for (x = 0; x < width; x++) { + double step = x / (double) width; + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); cairo_move_to (cr, x + dx, y + dy); cairo_rel_line_to (cr, step, step); cairo_rel_line_to (cr, 0, -step); @@ -202,9 +203,9 @@ intersecting_triangles (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.75 / (WIDTH * WIDTH)); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.75 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -217,11 +218,11 @@ intersecting_triangles (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - double step = x / (double) WIDTH; - for (y = 0; y < HEIGHT; y++) { - double dx = random_offset (WIDTH - x, TRUE); - double dy = random_offset (WIDTH - x, TRUE); + for (x = 0; x < width; x++) { + double step = x / (double) width; + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); /* left */ cairo_move_to (cr, x + dx, y + dy); @@ -254,9 +255,9 @@ triangles (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (WIDTH * WIDTH)); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -269,13 +270,13 @@ triangles (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - for (y = 0; y < HEIGHT; y++) { - double dx = random_offset (WIDTH - x, TRUE); - double dy = random_offset (WIDTH - x, TRUE); + for (x = 0; x < width; x++) { + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); cairo_move_to (cr, x + dx, y + dy); - cairo_rel_line_to (cr, x / (double) WIDTH, 0); - cairo_rel_line_to (cr, 0, x / (double) WIDTH); + cairo_rel_line_to (cr, x / (double) width, 0); + cairo_rel_line_to (cr, 0, x / (double) width); cairo_close_path (cr); } } @@ -344,9 +345,9 @@ column_triangles (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / WIDTH); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / width); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -359,11 +360,11 @@ column_triangles (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - double step = x / (double) (2 * WIDTH); - for (y = 0; y < HEIGHT; y++) { + for (x = 0; x < width; x++) { + double step = x / (double) (2 * width); + for (y = 0; y < height; y++) { for (i = 0; i < PRECISION; i++) { - double dy = random_offset (WIDTH - x, FALSE); + double dy = random_offset (width - x, FALSE, width); /* * We want to test some sharing of edges to further @@ -375,7 +376,7 @@ column_triangles (cairo_t *cr, int width, int height) * s --- . --- * t | |\ | * e | | \ | - * p --- .... | 2 * step = x / WIDTH + * p --- .... | 2 * step = x / width * \ | | * \| | * . --- @@ -383,8 +384,8 @@ column_triangles (cairo_t *cr, int width, int height) * 1 / PRECISION * * Each column contains two triangles of width one quantum and - * total height of (x / WIDTH), thus the total area covered by all - * columns in each pixel is .5 * (x / WIDTH). + * total height of (x / width), thus the total area covered by all + * columns in each pixel is .5 * (x / width). */ cairo_move_to (cr, x + i / (double) PRECISION, y + dy); @@ -413,9 +414,9 @@ row_triangles (cairo_t *cr, int width, int height) cairo_paint (cr); #if GENERATE_REFERENCE - for (x = 0; x < WIDTH; x++) { - cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / WIDTH); - cairo_rectangle (cr, x, 0, 1, HEIGHT); + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / width); + cairo_rectangle (cr, x, 0, 1, height); cairo_fill (cr); } #else @@ -428,11 +429,11 @@ row_triangles (cairo_t *cr, int width, int height) case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; } - for (x = 0; x < WIDTH; x++) { - double step = x / (double) (2 * WIDTH); - for (y = 0; y < HEIGHT; y++) { + for (x = 0; x < width; x++) { + double step = x / (double) (2 * width); + for (y = 0; y < height; y++) { for (i = 0; i < PRECISION; i++) { - double dx = random_offset (WIDTH - x, FALSE); + double dx = random_offset (width - x, FALSE, width); /* See column_triangles() for a transposed description * of this geometry. @@ -490,7 +491,8 @@ CAIRO_TEST (coverage_column_triangles, "Check the fidelity of the rasterisation.", NULL, /* keywords */ "target=raster", /* requirements */ - WIDTH, HEIGHT, + /* Smaller height since this test does not vary by y-coordinate */ + WIDTH, 4, NULL, column_triangles) CAIRO_TEST (coverage_triangles, "Check the fidelity of the rasterisation.", |