diff options
Diffstat (limited to 'src/Fl_Bitmap.cxx')
| -rw-r--r-- | src/Fl_Bitmap.cxx | 84 |
1 files changed, 1 insertions, 83 deletions
diff --git a/src/Fl_Bitmap.cxx b/src/Fl_Bitmap.cxx index bb6b21ae7..c85b62803 100644 --- a/src/Fl_Bitmap.cxx +++ b/src/Fl_Bitmap.cxx @@ -26,88 +26,6 @@ #include <FL/Fl_Menu_Item.H> #include <FL/Fl_Bitmap.H> -/** Create a bit mask */ -Fl_Bitmask fl_create_bitmask(int w, int h, const uchar *array) { - return fl_graphics_driver->create_bitmask(w, h, array); -} - -/** delete a bit mask */ -void fl_delete_bitmask(Fl_Bitmask bm) { - return Fl_Graphics_Driver::default_driver().delete_bitmask(bm); -} - -// Create a 1-bit mask used for alpha blending -Fl_Bitmask fl_create_alphamask(int w, int h, int d, int ld, const uchar *array) { - Fl_Bitmask bm; - int bmw = (w + 7) / 8; - uchar *bitmap = new uchar[bmw * h]; - uchar *bitptr, bit; - const uchar *dataptr; - int x, y; - static uchar dither[16][16] = { // Simple 16x16 Floyd dither - { 0, 128, 32, 160, 8, 136, 40, 168, - 2, 130, 34, 162, 10, 138, 42, 170 }, - { 192, 64, 224, 96, 200, 72, 232, 104, - 194, 66, 226, 98, 202, 74, 234, 106 }, - { 48, 176, 16, 144, 56, 184, 24, 152, - 50, 178, 18, 146, 58, 186, 26, 154 }, - { 240, 112, 208, 80, 248, 120, 216, 88, - 242, 114, 210, 82, 250, 122, 218, 90 }, - { 12, 140, 44, 172, 4, 132, 36, 164, - 14, 142, 46, 174, 6, 134, 38, 166 }, - { 204, 76, 236, 108, 196, 68, 228, 100, - 206, 78, 238, 110, 198, 70, 230, 102 }, - { 60, 188, 28, 156, 52, 180, 20, 148, - 62, 190, 30, 158, 54, 182, 22, 150 }, - { 252, 124, 220, 92, 244, 116, 212, 84, - 254, 126, 222, 94, 246, 118, 214, 86 }, - { 3, 131, 35, 163, 11, 139, 43, 171, - 1, 129, 33, 161, 9, 137, 41, 169 }, - { 195, 67, 227, 99, 203, 75, 235, 107, - 193, 65, 225, 97, 201, 73, 233, 105 }, - { 51, 179, 19, 147, 59, 187, 27, 155, - 49, 177, 17, 145, 57, 185, 25, 153 }, - { 243, 115, 211, 83, 251, 123, 219, 91, - 241, 113, 209, 81, 249, 121, 217, 89 }, - { 15, 143, 47, 175, 7, 135, 39, 167, - 13, 141, 45, 173, 5, 133, 37, 165 }, - { 207, 79, 239, 111, 199, 71, 231, 103, - 205, 77, 237, 109, 197, 69, 229, 101 }, - { 63, 191, 31, 159, 55, 183, 23, 151, - 61, 189, 29, 157, 53, 181, 21, 149 }, - { 254, 127, 223, 95, 247, 119, 215, 87, - 253, 125, 221, 93, 245, 117, 213, 85 } - }; - - // Generate a 1-bit "screen door" alpha mask; not always pretty, but - // definitely fast... In the future we may be able to support things - // like the RENDER extension in XFree86, when available, to provide - // true RGBA-blended rendering. See: - // - // http://www.xfree86.org/~keithp/render/protocol.html - // - // for more info on XRender... - // - // MacOS already provides alpha blending support and has its own - // fl_create_alphamask() function... - memset(bitmap, 0, bmw * h); - - for (dataptr = array + d - 1, y = 0; y < h; y ++, dataptr += ld) - for (bitptr = bitmap + y * bmw, bit = 1, x = 0; x < w; x ++, dataptr += d) { - if (*dataptr > dither[x & 15][y & 15]) - *bitptr |= bit; - if (bit < 128) bit <<= 1; - else { - bit = 1; - bitptr ++; - } - } - - bm = fl_create_bitmask(w, h, bitmap); - delete[] bitmap; - - return (bm); -} void Fl_Bitmap::draw(int XP, int YP, int WP, int HP, int cx, int cy) { fl_graphics_driver->draw_bitmap(this, XP, YP, WP, HP, cx, cy); @@ -124,7 +42,7 @@ Fl_Bitmap::~Fl_Bitmap() { void Fl_Bitmap::uncache() { if (id_) { - fl_delete_bitmask((Fl_Bitmask)id_); + fl_graphics_driver->delete_bitmask(id_); id_ = 0; } } |