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Diffstat (limited to 'libs/pixman-0.40.0/demos/srgb-trap-test.c')
-rw-r--r--libs/pixman-0.40.0/demos/srgb-trap-test.c119
1 files changed, 0 insertions, 119 deletions
diff --git a/libs/pixman-0.40.0/demos/srgb-trap-test.c b/libs/pixman-0.40.0/demos/srgb-trap-test.c
deleted file mode 100644
index d5ae16a..0000000
--- a/libs/pixman-0.40.0/demos/srgb-trap-test.c
+++ /dev/null
@@ -1,119 +0,0 @@
-#include <math.h>
-#include "pixman.h"
-#include "gtk-utils.h"
-
-#define F(x) \
- pixman_double_to_fixed (x)
-
-#define WIDTH 600
-#define HEIGHT 300
-
-static uint16_t
-convert_to_srgb (uint16_t in)
-{
- double d = in * (1/65535.0);
- double a = 0.055;
-
- if (d < 0.0031308)
- d = 12.92 * d;
- else
- d = (1 + a) * pow (d, 1 / 2.4) - a;
-
- return (d * 65535.0) + 0.5;
-}
-
-static void
-convert_color (pixman_color_t *dest_srgb, pixman_color_t *linear)
-{
- dest_srgb->alpha = convert_to_srgb (linear->alpha);
- dest_srgb->red = convert_to_srgb (linear->red);
- dest_srgb->green = convert_to_srgb (linear->green);
- dest_srgb->blue = convert_to_srgb (linear->blue);
-}
-
-int
-main (int argc, char **argv)
-{
- static const pixman_trapezoid_t traps[] =
- {
- { F(10.10), F(280.0),
- { { F(20.0), F(10.10) },
- { F(5.3), F(280.0) } },
- { { F(20.3), F(10.10) },
- { F(5.6), F(280.0) } }
- },
- { F(10.10), F(280.0),
- { { F(40.0), F(10.10) },
- { F(15.3), F(280.0) } },
- { { F(41.0), F(10.10) },
- { F(16.3), F(280.0) } }
- },
- { F(10.10), F(280.0),
- { { F(120.0), F(10.10) },
- { F(5.3), F(280.0) } },
- { { F(128.3), F(10.10) },
- { F(6.6), F(280.0) } }
- },
- { F(10.10), F(280.0),
- { { F(60.0), F(10.10) },
- { F(25.3), F(280.0) } },
- { { F(61.0), F(10.10) },
- { F(26.3), F(280.0) } }
- },
- { F(10.10), F(280.0),
- { { F(90.0), F(10.10) },
- { F(55.3), F(280.0) } },
- { { F(93.0), F(10.10) },
- { F(58.3), F(280.0) } }
- },
- { F(130.10), F(150.0),
- { { F(100.0), F(130.10) },
- { F(250.3), F(150.0) } },
- { { F(110.0), F(130.10) },
- { F(260.3), F(150.0) } }
- },
- { F(170.10), F(240.0),
- { { F(100.0), F(170.10) },
- { F(120.3), F(240.0) } },
- { { F(250.0), F(170.10) },
- { F(250.3), F(240.0) } }
- },
- };
-
- pixman_image_t *src, *dest_srgb, *dest_linear;
- pixman_color_t bg = { 0x0000, 0x0000, 0x0000, 0xffff };
- pixman_color_t fg = { 0xffff, 0xffff, 0xffff, 0xffff };
- pixman_color_t fg_srgb;
- uint32_t *d;
-
- d = malloc (WIDTH * HEIGHT * 4);
-
- dest_srgb = pixman_image_create_bits (
- PIXMAN_a8r8g8b8_sRGB, WIDTH, HEIGHT, d, WIDTH * 4);
- dest_linear = pixman_image_create_bits (
- PIXMAN_a8r8g8b8, WIDTH, HEIGHT, d, WIDTH * 4);
-
- src = pixman_image_create_solid_fill (&bg);
- pixman_image_composite32 (PIXMAN_OP_SRC,
- src, NULL, dest_srgb,
- 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
-
- src = pixman_image_create_solid_fill (&fg);
-
- pixman_composite_trapezoids (PIXMAN_OP_OVER,
- src, dest_srgb, PIXMAN_a8,
- 0, 0, 10, 10, G_N_ELEMENTS (traps), traps);
-
- convert_color (&fg_srgb, &fg);
- src = pixman_image_create_solid_fill (&fg_srgb);
-
- pixman_composite_trapezoids (PIXMAN_OP_OVER,
- src, dest_linear, PIXMAN_a8,
- 0, 0, 310, 10, G_N_ELEMENTS (traps), traps);
-
- show_image (dest_linear);
- pixman_image_unref(dest_linear);
- free(d);
-
- return 0;
-}