--- /dev/null
+#include "xgl.h"
+
+static struct xvertex logomesh[] __attribute__((section(".rodata"))) = {
+ { -12855, 0, 140018, 0, 65536, 0, 0, 0, 0xff},
+ { 22472, 0, 140018, 0, 65536, 0, 0, 0, 0xff},
+ { 7640, 0, 295502, 0, 65536, 0, 0, 0, 0xff},
+ { 22472, 0, 140018, 0, 65536, 0, 0, 0, 0xff},
+ { -12855, 0, 140018, 0, 65536, 0, 0, 0, 0xff},
+ { -1163, 0, 136278, 0, 65536, 0, 0, 0, 0xff},
+ { -16725, 0, 111723, 0, 65536, 0, 0, 0, 0xff},
+ { -7235, 0, 111668, 0, 65536, 0, 0, 0, 0xff},
+ { -2749, 0, 115054, 0, 65536, 0, 65536, 65536, 0xff},
+ { -7235, 0, 111668, 0, 65536, 0, 0, 0, 0xff},
+ { 2101, 0, 114512, 0, 65536, 0, 65536, 65536, 0xff},
+ { -2749, 0, 115054, 0, 65536, 0, 65536, 65536, 0xff},
+ { 2101, 0, 114512, 0, 65536, 0, 65536, 65536, 0xff},
+ { 17594, 0, 118898, 0, 65536, 0, 0, 0, 0xff},
+ { -2749, 0, 115054, 0, 65536, 0, 65536, 65536, 0xff},
+ { 24905, 0, 115026, 0, 65536, 0, 65536, 65536, 0xff},
+ { 17594, 0, 118898, 0, 65536, 0, 0, 0, 0xff},
+ { 17098, 0, 116680, 0, 65536, 0, 0, 0, 0xff},
+ { 27274, 0, 97629, 0, 65536, 0, 65536, 65536, 0xff},
+ { 24905, 0, 115026, 0, 65536, 0, 65536, 65536, 0xff},
+ { 17098, 0, 116680, 0, 65536, 0, 0, 0, 0xff},
+ { 24905, 0, 115026, 0, 65536, 0, 65536, 65536, 0xff},
+ { 45765, 0, 112509, 0, 65536, 0, 65536, 65536, 0xff},
+ { 17594, 0, 118898, 0, 65536, 0, 0, 0, 0xff},
+ { 40560, 0, 111407, 0, 65536, 0, 0, 0, 0xff},
+ { 46839, 0, 108075, 0, 65536, 0, 65536, 65536, 0xff},
+ { 45765, 0, 112509, 0, 65536, 0, 65536, 65536, 0xff},
+ { 46839, 0, 108075, 0, 65536, 0, 65536, 65536, 0xff},
+ { 40560, 0, 111407, 0, 65536, 0, 0, 0, 0xff},
+ { 38605, 0, 92930, 0, 65536, 0, 65536, 65536, 0xff},
+ { 46839, 0, 108075, 0, 65536, 0, 65536, 65536, 0xff},
+ { 66294, 0, 97688, 0, 65536, 0, 0, 0, 0xff},
+ { 45765, 0, 112509, 0, 65536, 0, 65536, 65536, 0xff},
+ { 60386, 0, 96920, 0, 65536, 0, 65536, 65536, 0xff},
+ { 66995, 0, 92614, 0, 65536, 0, 0, 0, 0xff},
+ { 66294, 0, 97688, 0, 65536, 0, 0, 0, 0xff},
+ { -94976, 0, 93183, 0, 65536, 0, 0, 0, 0xff},
+ { -82974, 0, 105751, 0, 65536, 0, 0, 0, 0xff},
+ {-141620, 0, 151139, 0, 65536, 0, 0, 0, 0xff},
+ { 22472, 0, 140018, 0, 65536, 0, 0, 0, 0xff},
+ { -1163, 0, 136278, 0, 65536, 0, 0, 0, 0xff},
+ { 11140, 0, 136134, 0, 65536, 0, 0, 0, 0xff},
+ { 11140, 0, 136134, 0, 65536, 0, 0, 0, 0xff},
+ { -1163, 0, 136278, 0, 65536, 0, 0, 0, 0xff},
+ { 4518, 0, 122326, 0, 65536, 0, 0, 0, 0xff},
+ { 99775, 0, 104686, 0, 65536, 0, 0, 0, 0xff},
+ { 112016, 0, 92963, 0, 65536, 0, 0, 0, 0xff},
+ { 157659, 0, 150807, 0, 65536, 0, 0, 0, 0xff},
+ { 2101, 0, 114512, 0, 65536, 0, 65536, 65536, 0xff},
+ { 17098, 0, 116680, 0, 65536, 0, 0, 0, 0xff},
+ { 17594, 0, 118898, 0, 65536, 0, 0, 0, 0xff},
+ { -47878, 0, 65534, 0, 65536, 0, 65536, 65536, 0xff},
+ { -46507, 0, 85129, 0, 65536, 0, 65536, 65536, 0xff},
+ { -60551, 0, 63728, 0, 65536, 0, 0, 0, 0xff},
+ { -46507, 0, 85129, 0, 65536, 0, 65536, 65536, 0xff},
+ { -39155, 0, 78919, 0, 65536, 0, 0, 0, 0xff},
+ { -36657, 0, 84711, 0, 65536, 0, 65536, 65536, 0xff},
+ { -36657, 0, 84711, 0, 65536, 0, 65536, 65536, 0xff},
+ { -39155, 0, 78919, 0, 65536, 0, 0, 0, 0xff},
+ { -9575, 0, 73994, 0, 65536, 0, 0, 0, 0xff},
+ { -36657, 0, 84711, 0, 65536, 0, 65536, 65536, 0xff},
+ { -36126, 0, 97608, 0, 65536, 0, 65536, 65536, 0xff},
+ { -46507, 0, 85129, 0, 65536, 0, 65536, 65536, 0xff},
+ { -36126, 0, 97608, 0, 65536, 0, 65536, 65536, 0xff},
+ { -20669, 0, 102834, 0, 65536, 0, 0, 0, 0xff},
+ { -16725, 0, 111723, 0, 65536, 0, 0, 0, 0xff},
+ { -20669, 0, 102834, 0, 65536, 0, 0, 0, 0xff},
+ { -27650, 0, 97046, 0, 65536, 0, 65536, 65536, 0xff},
+ { 1635, 0, 86938, 0, 65536, 0, 65536, 65536, 0xff},
+ { 2101, 0, 114512, 0, 65536, 0, 65536, 65536, 0xff},
+ { -7235, 0, 111668, 0, 65536, 0, 0, 0, 0xff},
+ { 14693, 0, 94786, 0, 65536, 0, 0, 0, 0xff},
+ { 66995, 0, 92614, 0, 65536, 0, 0, 0, 0xff},
+ { 60386, 0, 96920, 0, 65536, 0, 65536, 65536, 0xff},
+ { 55746, 0, 84870, 0, 65536, 0, 65536, 65536, 0xff},
+ { 66995, 0, 92614, 0, 65536, 0, 0, 0, 0xff},
+ { 96165, 0, 80602, 0, 65536, 0, 65536, 65536, 0xff},
+ { 66294, 0, 97688, 0, 65536, 0, 0, 0, 0xff},
+ { 93891, 0, 72352, 0, 65536, 0, 0, 0, 0xff},
+ { 118076, 0, 76260, 0, 65536, 0, 0, 0, 0xff},
+ { 96165, 0, 80602, 0, 65536, 0, 65536, 65536, 0xff},
+ { 50466, 0, 81395, 0, 65536, 0, 0, 0, 0xff},
+ { 38151, 0, 83142, 0, 65536, 0, 0, 0, 0xff},
+ { 48974, 0, 78095, 0, 65536, 0, 0, 0, 0xff},
+ { 38550, 0, 86806, 0, 65536, 0, 0, 0, 0xff},
+ { 26600, 0, 82102, 0, 65536, 0, 0, 0, 0xff},
+ { 38151, 0, 83142, 0, 65536, 0, 0, 0, 0xff},
+ { 26600, 0, 82102, 0, 65536, 0, 0, 0, 0xff},
+ { 10079, 0, 79954, 0, 65536, 0, 0, 0, 0xff},
+ { 11164, 0, 67190, 0, 65536, 0, 0, 0, 0xff},
+ { 11164, 0, 67190, 0, 65536, 0, 0, 0, 0xff},
+ { 10079, 0, 79954, 0, 65536, 0, 0, 0, 0xff},
+ { 1636, 0, 70954, 0, 65536, 0, 0, 0, 0xff},
+ { -36657, 0, 84711, 0, 65536, 0, 65536, 65536, 0xff},
+ { -27650, 0, 97046, 0, 65536, 0, 65536, 65536, 0xff},
+ { -36126, 0, 97608, 0, 65536, 0, 65536, 65536, 0xff},
+ { -36126, 0, 97608, 0, 65536, 0, 65536, 65536, 0xff},
+ { -27650, 0, 97046, 0, 65536, 0, 65536, 65536, 0xff},
+ { -20669, 0, 102834, 0, 65536, 0, 0, 0, 0xff},
+ { -16725, 0, 111723, 0, 65536, 0, 0, 0, 0xff},
+ { -20669, 0, 102834, 0, 65536, 0, 0, 0, 0xff},
+ { -7235, 0, 111668, 0, 65536, 0, 0, 0, 0xff},
+ { 24905, 0, 115026, 0, 65536, 0, 65536, 65536, 0xff},
+ { 40560, 0, 111407, 0, 65536, 0, 0, 0, 0xff},
+ { 45765, 0, 112509, 0, 65536, 0, 65536, 65536, 0xff},
+ { 46839, 0, 108075, 0, 65536, 0, 65536, 65536, 0xff},
+ { 60386, 0, 96920, 0, 65536, 0, 65536, 65536, 0xff},
+ { 66294, 0, 97688, 0, 65536, 0, 0, 0, 0xff},
+ { 66995, 0, 92614, 0, 65536, 0, 0, 0, 0xff},
+ { 93891, 0, 72352, 0, 65536, 0, 0, 0, 0xff},
+ { 96165, 0, 80602, 0, 65536, 0, 65536, 65536, 0xff},
+ { -71273, 0, 32850, 0, 65536, 0, 0, 0, 0xff},
+ { -65731, 0, 48439, 0, 65536, 0, 0, 0, 0xff},
+ { -75383, 0, 52933, 0, 65536, 0, 0, 0, 0xff},
+ { -65731, 0, 48439, 0, 65536, 0, 0, 0, 0xff},
+ { -47878, 0, 65534, 0, 65536, 0, 65536, 65536, 0xff},
+ { -75383, 0, 52933, 0, 65536, 0, 0, 0, 0xff},
+ { -47878, 0, 65534, 0, 65536, 0, 65536, 65536, 0xff},
+ { -39155, 0, 78919, 0, 65536, 0, 0, 0, 0xff},
+ { -46507, 0, 85129, 0, 65536, 0, 65536, 65536, 0xff},
+ { 54916, 0, 25594, 0, 65536, 0, 0, 0, 0xff},
+ { 79436, 0, 43991, 0, 65536, 0, 0, 0, 0xff},
+ { 58231, 0, 48093, 0, 65536, 0, 0, 0, 0xff},
+ { 79436, 0, 43991, 0, 65536, 0, 0, 0, 0xff},
+ { 69556, 0, 59745, 0, 65536, 0, 0, 0, 0xff},
+ { 58231, 0, 48093, 0, 65536, 0, 0, 0, 0xff},
+ { 58231, 0, 48093, 0, 65536, 0, 0, 0, 0xff},
+ { 59052, 0, 66201, 0, 65536, 0, 0, 0, 0xff},
+ { 56207, 0, 65763, 0, 65536, 0, 0, 0, 0xff},
+ { 59052, 0, 66201, 0, 65536, 0, 0, 0, 0xff},
+ { 48974, 0, 78095, 0, 65536, 0, 0, 0, 0xff},
+ { 56207, 0, 65763, 0, 65536, 0, 0, 0, 0xff},
+ { -65731, 0, 48439, 0, 65536, 0, 0, 0, 0xff},
+ { -38854, 0, 63972, 0, 65536, 0, 0, 0, 0xff},
+ { -47878, 0, 65534, 0, 65536, 0, 65536, 65536, 0xff},
+ { -47878, 0, 65534, 0, 65536, 0, 65536, 65536, 0xff},
+ { -38854, 0, 63972, 0, 65536, 0, 0, 0, 0xff},
+ { -39155, 0, 78919, 0, 65536, 0, 0, 0, 0xff},
+ { 93891, 0, 72352, 0, 65536, 0, 0, 0, 0xff},
+ { 100539, 0, 61349, 0, 65536, 0, 65536, 65536, 0xff},
+ { 118076, 0, 76260, 0, 65536, 0, 0, 0, 0xff},
+ { 26600, 0, 82102, 0, 65536, 0, 0, 0, 0xff},
+ { 24657, 0, 86338, 0, 65536, 0, 0, 0, 0xff},
+ { 10079, 0, 79954, 0, 65536, 0, 0, 0, 0xff},
+ { 100539, 0, 61349, 0, 65536, 0, 65536, 65536, 0xff},
+ { 93891, 0, 72352, 0, 65536, 0, 0, 0, 0xff},
+ { 78751, 0, 30740, 0, 65536, 0, 0, 0, 0xff},
+ { 79436, 0, 43991, 0, 65536, 0, 0, 0, 0xff},
+ { 81351, 0, 69321, 0, 65536, 0, 0, 0, 0xff},
+ { 69556, 0, 59745, 0, 65536, 0, 0, 0, 0xff},
+ { 58231, 0, 48093, 0, 65536, 0, 0, 0, 0xff},
+ { 69556, 0, 59745, 0, 65536, 0, 0, 0, 0xff},
+ { 59052, 0, 66201, 0, 65536, 0, 0, 0, 0xff},
+ { 59052, 0, 66201, 0, 65536, 0, 0, 0, 0xff},
+ { 50466, 0, 81395, 0, 65536, 0, 0, 0, 0xff},
+ { 48974, 0, 78095, 0, 65536, 0, 0, 0, 0xff},
+ { 50466, 0, 81395, 0, 65536, 0, 0, 0, 0xff},
+ { 38550, 0, 86806, 0, 65536, 0, 0, 0, 0xff},
+ { 38151, 0, 83142, 0, 65536, 0, 0, 0, 0xff},
+ { 38550, 0, 86806, 0, 65536, 0, 0, 0, 0xff},
+ { 24657, 0, 86338, 0, 65536, 0, 0, 0, 0xff},
+ { 26600, 0, 82102, 0, 65536, 0, 0, 0, 0xff},
+ {-193321, 0, -5240, 0, 65536, 0, 0, 0, 0xff},
+ {-174061, 0, 17832, 0, 65536, 0, 0, 0, 0xff},
+ {-186686, 0, 16206, 0, 65536, 0, 0, 0, 0xff},
+ { -34243, 0, 30391, 0, 65536, 0, 0, 0, 0xff},
+ { -50418, 0, 30729, 0, 65536, 0, 0, 0, 0xff},
+ { -49220, 0, 28597, 0, 65536, 0, 0, 0, 0xff},
+ { -34243, 0, 30391, 0, 65536, 0, 0, 0, 0xff},
+ { -49220, 0, 28597, 0, 65536, 0, 0, 0, 0xff},
+ { -45233, 0, 24903, 0, 65536, 0, 0, 0, 0xff},
+ {-193321, 0, -5240, 0, 65536, 0, 0, 0, 0xff},
+ {-186686, 0, 16206, 0, 65536, 0, 0, 0, 0xff},
+ {-284594, 0, 6990, 0, 65536, 0, 65536, 65536, 0xff},
+ {-174061, 0, 17832, 0, 65536, 0, 0, 0, 0xff},
+ {-131053, 0, -1063, 0, 65536, 0, 0, 0, 0xff},
+ {-133580, 0, 25998, 0, 65536, 0, 65536, 65536, 0xff},
+ {-133580, 0, 25998, 0, 65536, 0, 65536, 65536, 0xff},
+ {-131053, 0, -1063, 0, 65536, 0, 0, 0, 0xff},
+ {-127422, 0, 11747, 0, 65536, 0, 0, 0, 0xff},
+ {-118515, 0, 18160, 0, 65536, 0, 65536, 65536, 0xff},
+ {-102848, 0, 27602, 0, 65536, 0, 0, 0, 0xff},
+ {-133580, 0, 25998, 0, 65536, 0, 65536, 65536, 0xff},
+ {-127422, 0, 11747, 0, 65536, 0, 0, 0, 0xff},
+ {-118515, 0, 18160, 0, 65536, 0, 65536, 65536, 0xff},
+ {-133580, 0, 25998, 0, 65536, 0, 65536, 65536, 0xff},
+ {-102848, 0, 27602, 0, 65536, 0, 0, 0, 0xff},
+ {-118515, 0, 18160, 0, 65536, 0, 65536, 65536, 0xff},
+ {-101768, 0, 13617, 0, 65536, 0, 65536, 65536, 0xff},
+ {-133580, 0, 25998, 0, 65536, 0, 65536, 65536, 0xff},
+ {-102848, 0, 27602, 0, 65536, 0, 0, 0, 0xff},
+ { -94742, 0, 45684, 0, 65536, 0, 0, 0, 0xff},
+ { -82948, 0, 6812, 0, 65536, 0, 0, 0, 0xff},
+ { -68746, 0, 25425, 0, 65536, 0, 65536, 65536, 0xff},
+ { -71273, 0, 32850, 0, 65536, 0, 0, 0, 0xff},
+ { -71273, 0, 32850, 0, 65536, 0, 0, 0, 0xff},
+ { -65549, 0, 26166, 0, 65536, 0, 65536, 65536, 0xff},
+ { -65731, 0, 48439, 0, 65536, 0, 0, 0, 0xff},
+ { -65549, 0, 26166, 0, 65536, 0, 65536, 65536, 0xff},
+ { -68746, 0, 25425, 0, 65536, 0, 65536, 65536, 0xff},
+ { -65039, 0, 17271, 0, 65536, 0, 65536, 65536, 0xff},
+ { 100539, 0, 61349, 0, 65536, 0, 65536, 65536, 0xff},
+ { 78751, 0, 30740, 0, 65536, 0, 0, 0, 0xff},
+ { 80512, 0, 27939, 0, 65536, 0, 0, 0, 0xff},
+ { -47461, 0, 23437, 0, -65536, 0, 0, 0, 0xff},
+ { -59425, 0, 16751, 0, -65536, 0, 0, 0, 0xff},
+ { -49220, 0, 28597, 0, -65536, 0, 0, 0, 0xff},
+ { -49220, 0, 28597, 0, 65536, 0, 0, 0, 0xff},
+ { -50418, 0, 30729, 0, 65536, 0, 0, 0, 0xff},
+ { -59425, 0, 16751, 0, 65536, 0, 0, 0, 0xff},
+ { -71273, 0, 32850, 0, 65536, 0, 0, 0, 0xff},
+ { -68746, 0, 25425, 0, 65536, 0, 65536, 65536, 0xff},
+ { -65549, 0, 26166, 0, 65536, 0, 65536, 65536, 0xff},
+ { 80512, 0, 27939, 0, 65536, 0, 0, 0, 0xff},
+ { 78751, 0, 30740, 0, 65536, 0, 0, 0, 0xff},
+ { 59604, 0, 7933, 0, 65536, 0, 0, 0, 0xff},
+ { 54916, 0, 25594, 0, 65536, 0, 0, 0, 0xff},
+ { 59166, 0, 12091, 0, 65536, 0, 0, 0, 0xff},
+ { 79436, 0, 43991, 0, 65536, 0, 0, 0, 0xff},
+ { -34243, 0, 30391, 0, 65536, 0, 0, 0, 0xff},
+ { -40235, 0, 43741, 0, 65536, 0, 0, 0, 0xff},
+ { -50418, 0, 30729, 0, 65536, 0, 0, 0, 0xff},
+ { 22364, 0, 47913, 0, 65536, 0, 0, 0, 0xff},
+ { 41000, 0, 43862, 0, 65536, 0, 0, 0, 0xff},
+ { 31381, 0, 58089, 0, 65536, 0, 0, 0, 0xff},
+ { 302210, 0, 1827, 0, 65536, 0, 65536, 65536, 0xff},
+ { 149161, 0, 6082, 0, 65536, 0, 65536, 65536, 0xff},
+ { 139861, 0, -13458, 0, 65536, 0, 0, 0, 0xff},
+ { 139861, 0, -13458, 0, 65536, 0, 0, 0, 0xff},
+ { 149161, 0, 6082, 0, 65536, 0, 65536, 65536, 0xff},
+ { 128423, 0, 1827, 0, 65536, 0, 0, 0, 0xff},
+ { 128423, 0, 1827, 0, 65536, 0, 0, 0, 0xff},
+ { 118162, 0, -5441, 0, 65536, 0, 65536, 65536, 0xff},
+ { 139861, 0, -13458, 0, 65536, 0, 0, 0, 0xff},
+ { 118162, 0, -5441, 0, 65536, 0, 65536, 65536, 0xff},
+ { 128423, 0, 1827, 0, 65536, 0, 0, 0, 0xff},
+ { 103731, 0, 11554, 0, 65536, 0, 65536, 65536, 0xff},
+ { 80512, 0, 27939, 0, 65536, 0, 0, 0, 0xff},
+ { 59604, 0, 7933, 0, 65536, 0, 0, 0, 0xff},
+ { 61256, 0, 5307, 0, 65536, 0, 0, 0, 0xff},
+ { 69290, 0, -27593, 0, 65536, 0, 32768, 32768, 0xff},
+ { 65269, 0, -1924, 0, 65536, 0, 65536, 65536, 0xff},
+ { 41280, 0, -10932, 0, 65536, 0, 65536, 65536, 0xff},
+ { 90570, 0, -6556, 0, 65536, 0, 0, 0, 0xff},
+ { 84756, 0, 8081, 0, 65536, 0, 0, 0, 0xff},
+ { 75331, 0, 11760, 0, 65536, 0, 65536, 65536, 0xff},
+ { 75331, 0, 11760, 0, 65536, 0, 65536, 65536, 0xff},
+ { 84756, 0, 8081, 0, 65536, 0, 0, 0, 0xff},
+ { 87834, 0, 33016, 0, 65536, 0, 0, 0, 0xff},
+ { 302210, 0, 1827, 0, 65536, 0, 65536, 65536, 0xff},
+ { 146254, 0, 22544, 0, 65536, 0, 0, 0, 0xff},
+ { 149161, 0, 6082, 0, 65536, 0, 65536, 65536, 0xff},
+ { -9299, 0, 2876, 0, 65536, 0, 65536, 65536, 0xff},
+ { -7819, 0, 25377, 0, 65536, 0, 0, 0, 0xff},
+ { -25238, 0, 3593, 0, 65536, 0, 65536, 65536, 0xff},
+ { -9299, 0, 2876, 0, 65536, 0, 65536, 65536, 0xff},
+ { 7840, 0, -6237, 0, 65536, 0, 0, 0, 0xff},
+ { -7819, 0, 25377, 0, 65536, 0, 0, 0, 0xff},
+ { 130483, 0, -24934, 0, 65536, 0, 0, 0, 0xff},
+ { 90570, 0, -6556, 0, 65536, 0, 0, 0, 0xff},
+ { 134427, 0, -30955, 0, 65536, 0, 0, 0, 0xff},
+ { 61256, 0, 5307, 0, 65536, 0, 0, 0, 0xff},
+ { 38473, 0, -2851, 0, 65536, 0, 0, 0, 0xff},
+ { 38906, 0, -5057, 0, 65536, 0, 0, 0, 0xff},
+ { 13597, 0, -11012, 0, 65536, 0, 0, 0, 0xff},
+ { 40195, 0, -46919, 0, 65536, 0, 0, 0, 0xff},
+ { 41280, 0, -10932, 0, 65536, 0, 65536, 65536, 0xff},
+ { 38906, 0, -5057, 0, 65536, 0, 0, 0, 0xff},
+ { 17044, 0, -3185, 0, 65536, 0, 0, 0, 0xff},
+ { 13927, 0, -4638, 0, 65536, 0, 0, 0, 0xff},
+ { 17044, 0, -3185, 0, 65536, 0, 0, 0, 0xff},
+ { 8709, 0, -1626, 0, 65536, 0, 0, 0, 0xff},
+ { 13927, 0, -4638, 0, 65536, 0, 0, 0, 0xff},
+ { 19734, 0, 1117, 0, 65536, 0, 0, 0, 0xff},
+ { 37056, 0, -388, 0, 65536, 0, 0, 0, 0xff},
+ { 35765, 0, 6712, 0, 65536, 0, 0, 0, 0xff},
+ { 35765, 0, 6712, 0, 65536, 0, 0, 0, 0xff},
+ { 59166, 0, 12091, 0, 65536, 0, 0, 0, 0xff},
+ { 54916, 0, 25594, 0, 65536, 0, 0, 0, 0xff},
+ { 25971, 0, 8795, 0, 65536, 0, 0, 0, 0xff},
+ { 378, 0, 23867, 0, 65536, 0, 0, 0, 0xff},
+ { 9496, 0, 3685, 0, 65536, 0, 0, 0, 0xff},
+ { 7435, 0, 35289, 0, 65536, 0, 0, 0, 0xff},
+ { 32383, 0, 25226, 0, 65536, 0, 0, 0, 0xff},
+ { 21863, 0, 39697, 0, 65536, 0, 0, 0, 0xff},
+ { 21863, 0, 39697, 0, 65536, 0, 0, 0, 0xff},
+ { 41000, 0, 43862, 0, 65536, 0, 0, 0, 0xff},
+ { 22364, 0, 47913, 0, 65536, 0, 0, 0, 0xff},
+ { 22364, 0, 47913, 0, 65536, 0, 0, 0, 0xff},
+ { 31381, 0, 58089, 0, 65536, 0, 0, 0, 0xff},
+ { 16252, 0, 59191, 0, 65536, 0, 0, 0, 0xff},
+ { 32383, 0, 25226, 0, 65536, 0, 0, 0, 0xff},
+ { 25971, 0, 8795, 0, 65536, 0, 0, 0, 0xff},
+ { 35890, 0, 19615, 0, 65536, 0, 0, 0, 0xff},
+ {-193321, 0, -5240, 0, 65536, 0, 0, 0, 0xff},
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+ { 16471, 0, -118431, 0, 65536, 0, 65536, 65536, 0xff},
+ { -7383, 0, -132173, 0, 65536, 0, 0, 0, 0xff},
+ { 42456, 0, -130789, 0, 65536, 0, 0, 0, 0xff},
+ { 42456, 0, -130789, 0, 65536, 0, 0, 0, 0xff},
+ { 97388, 0, -121904, 0, 65536, 0, 65536, 65536, 0xff},
+ { 94869, 0, -118540, 0, 65536, 0, 65536, 65536, 0xff}
+
+};
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <float.h>
+#include <assert.h>
+#include "cmesh.h"
+
+#ifndef NO_OPENGL
+#include "opengl.h"
+#endif
+
+
+struct cmesh_vattrib {
+ int nelem; /* num elements per attribute [1, 4] */
+ float *data;
+ unsigned int count;
+ unsigned int vbo;
+ int vbo_valid, data_valid;
+};
+
+/* istart,icount are valid only when the mesh is indexed, otherwise icount is 0.
+ * vstart,vcount are define the submesh for non-indexed meshes.
+ * For indexed meshes, vstart,vcount denote the range of vertices used by each
+ * submesh.
+ */
+struct submesh {
+ char *name;
+ int nfaces; /* derived from either icount or vcount */
+ int istart, icount;
+ int vstart, vcount;
+ struct submesh *next;
+};
+
+struct cmesh {
+ char *name;
+ unsigned int nverts, nfaces;
+
+ struct submesh *sublist;
+ int subcount;
+
+ /* current value for each attribute for the immediate mode interface */
+ cgm_vec4 cur_val[CMESH_NUM_ATTR];
+
+ unsigned int buffer_objects[CMESH_NUM_ATTR + 1];
+ struct cmesh_vattrib vattr[CMESH_NUM_ATTR];
+
+ unsigned int *idata;
+ unsigned int icount;
+ unsigned int ibo;
+ int ibo_valid, idata_valid;
+
+ /* index buffer for wireframe rendering (constructed on demand) */
+ unsigned int wire_ibo;
+ int wire_ibo_valid;
+
+ /* axis-aligned bounding box */
+ cgm_vec3 aabb_min, aabb_max;
+ int aabb_valid;
+ /* bounding sphere */
+ cgm_vec3 bsph_center;
+ float bsph_radius;
+ int bsph_valid;
+};
+
+
+static int clone(struct cmesh *cmdest, struct cmesh *cmsrc, struct submesh *sub);
+static int pre_draw(struct cmesh *cm);
+static void post_draw(struct cmesh *cm, int cur_sdr);
+static void update_buffers(struct cmesh *cm);
+static void update_wire_ibo(struct cmesh *cm);
+static void calc_aabb(struct cmesh *cm);
+static void calc_bsph(struct cmesh *cm);
+
+static int def_nelem[CMESH_NUM_ATTR] = {3, 3, 3, 2, 4, 4, 4, 2};
+
+static int sdr_loc[CMESH_NUM_ATTR] = {0, 1, 2, 3, 4, 5, 6, 7};
+static int use_custom_sdr_attr;
+
+
+/* global state */
+void cmesh_set_attrib_sdrloc(int attr, int loc)
+{
+ sdr_loc[attr] = loc;
+}
+
+int cmesh_get_attrib_sdrloc(int attr)
+{
+ return sdr_loc[attr];
+}
+
+void cmesh_clear_attrib_sdrloc(void)
+{
+ int i;
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ sdr_loc[i] = -1;
+ }
+}
+
+/* mesh functions */
+struct cmesh *cmesh_alloc(void)
+{
+ struct cmesh *cm;
+
+ if(!(cm = malloc(sizeof *cm))) {
+ return 0;
+ }
+ if(cmesh_init(cm) == -1) {
+ free(cm);
+ return 0;
+ }
+ return cm;
+}
+
+void cmesh_free(struct cmesh *cm)
+{
+ cmesh_destroy(cm);
+ free(cm);
+}
+
+int cmesh_init(struct cmesh *cm)
+{
+ int i;
+
+ memset(cm, 0, sizeof *cm);
+ cgm_wcons(cm->cur_val + CMESH_ATTR_COLOR, 1, 1, 1, 1);
+
+#ifndef NO_OPENGL
+ glGenBuffers(CMESH_NUM_ATTR + 1, cm->buffer_objects);
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ cm->vattr[i].vbo = cm->buffer_objects[i];
+ }
+
+ cm->ibo = cm->buffer_objects[CMESH_NUM_ATTR];
+#endif
+ return 0;
+}
+
+void cmesh_destroy(struct cmesh *cm)
+{
+ int i;
+
+ free(cm->name);
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ free(cm->vattr[i].data);
+ }
+ free(cm->idata);
+
+ cmesh_clear_submeshes(cm);
+
+#ifndef NO_OPENGL
+ glDeleteBuffers(CMESH_NUM_ATTR + 1, cm->buffer_objects);
+ if(cm->wire_ibo) {
+ glDeleteBuffers(1, &cm->wire_ibo);
+ }
+#endif
+}
+
+void cmesh_clear(struct cmesh *cm)
+{
+ int i;
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ cm->vattr[i].nelem = 0;
+ cm->vattr[i].vbo_valid = 0;
+ cm->vattr[i].data_valid = 0;
+ free(cm->vattr[i].data);
+ cm->vattr[i].data = 0;
+ cm->vattr[i].count = 0;
+ }
+ cm->ibo_valid = cm->idata_valid = 0;
+ free(cm->idata);
+ cm->idata = 0;
+ cm->icount = 0;
+
+ cm->wire_ibo_valid = 0;
+ cm->nverts = cm->nfaces = 0;
+
+ cm->bsph_valid = cm->aabb_valid = 0;
+
+ cmesh_clear_submeshes(cm);
+}
+
+int cmesh_clone(struct cmesh *cmdest, struct cmesh *cmsrc)
+{
+ return clone(cmdest, cmsrc, 0);
+}
+
+static int clone(struct cmesh *cmdest, struct cmesh *cmsrc, struct submesh *sub)
+{
+ int i, nelem, vstart, vcount, istart, icount;
+ char *srcname, *name = 0;
+ float *varr[CMESH_NUM_ATTR] = {0};
+ float *vptr;
+ unsigned int *iptr, *iarr = 0;
+
+ /* try do anything that can fail first, before making any changes to cmdest
+ * so we have the option of recovering gracefuly
+ */
+
+ srcname = sub ? sub->name : cmsrc->name;
+ if(srcname) {
+ if(!(name = malloc(strlen(srcname) + 1))) {
+ return -1;
+ }
+ strcpy(name, srcname);
+ }
+
+ if(sub) {
+ vstart = sub->vstart;
+ vcount = sub->vcount;
+ istart = sub->istart;
+ icount = sub->icount;
+ } else {
+ vstart = istart = 0;
+ vcount = cmsrc->nverts;
+ icount = cmsrc->icount;
+ }
+
+ if(cmesh_indexed(cmsrc)) {
+ if(!(iarr = malloc(icount * sizeof *iarr))) {
+ free(name);
+ return -1;
+ }
+ }
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ if(cmesh_has_attrib(cmsrc, i)) {
+ nelem = cmsrc->vattr[i].nelem;
+ if(!(varr[i] = malloc(vcount * nelem * sizeof(float)))) {
+ while(--i >= 0) {
+ free(varr[i]);
+ }
+ free(iarr);
+ free(name);
+ return -1;
+ }
+ }
+ }
+
+ /* from this point forward nothing can fail */
+ cmesh_clear(cmdest);
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ free(cmdest->vattr[i].data);
+
+ if(cmesh_has_attrib(cmsrc, i)) {
+ cmesh_attrib(cmsrc, i); /* force validation of the actual data on the source mesh */
+
+ nelem = cmsrc->vattr[i].nelem;
+ cmdest->vattr[i].nelem = nelem;
+ cmdest->vattr[i].data = varr[i];
+ cmdest->vattr[i].count = vcount;
+ vptr = cmsrc->vattr[i].data + vstart * nelem;
+ memcpy(cmdest->vattr[i].data, vptr, vcount * nelem * sizeof(float));
+ cmdest->vattr[i].data_valid = 1;
+ cmdest->vattr[i].vbo_valid = 0;
+ } else {
+ memset(cmdest->vattr + i, 0, sizeof cmdest->vattr[i]);
+ }
+ }
+
+ if(cmesh_indexed(cmsrc)) {
+ cmesh_index(cmsrc); /* force validation .... */
+
+ cmdest->idata = iarr;
+ cmdest->icount = icount;
+ if(sub) {
+ /* need to offset all vertex indices by -vstart */
+ iptr = cmsrc->idata + istart;
+ for(i=0; i<icount; i++) {
+ cmdest->idata[i] = *iptr++ - vstart;
+ }
+ } else {
+ memcpy(cmdest->idata, cmsrc->idata + istart, icount * sizeof *cmdest->idata);
+ }
+ cmdest->idata_valid = 1;
+ } else {
+ cmdest->idata = 0;
+ cmdest->idata_valid = cmdest->ibo_valid = 0;
+ }
+
+ free(cmdest->name);
+ cmdest->name = name;
+
+ cmdest->nverts = cmsrc->nverts;
+ cmdest->nfaces = sub ? sub->nfaces : cmsrc->nfaces;
+
+ memcpy(cmdest->cur_val, cmsrc->cur_val, sizeof cmdest->cur_val);
+
+ cmdest->aabb_min = cmsrc->aabb_min;
+ cmdest->aabb_max = cmsrc->aabb_max;
+ cmdest->aabb_valid = cmsrc->aabb_valid;
+ cmdest->bsph_center = cmsrc->bsph_center;
+ cmdest->bsph_radius = cmsrc->bsph_radius;
+ cmdest->bsph_valid = cmsrc->bsph_valid;
+
+ /* copy sublist only if we're not cloning a submesh */
+ if(!sub) {
+ struct submesh *sm, *n, *head = 0, *tail = 0;
+
+ sm = cmsrc->sublist;
+ while(sm) {
+ if(!(n = malloc(sizeof *n)) || !(name = malloc(strlen(sm->name) + 1))) {
+ free(n);
+ sm = sm->next;
+ continue;
+ }
+ strcpy(name, sm->name);
+ *n = *sm;
+ n->name = name;
+ n->next = 0;
+
+ if(head) {
+ tail->next = n;
+ tail = n;
+ } else {
+ head = tail = n;
+ }
+
+ sm = sm->next;
+ }
+
+ cmdest->sublist = head;
+ cmdest->subcount = cmsrc->subcount;
+ }
+
+ return 0;
+}
+
+int cmesh_set_name(struct cmesh *cm, const char *name)
+{
+ int len = strlen(name);
+ char *tmp = malloc(len + 1);
+ if(!tmp) return -1;
+ free(cm->name);
+ cm->name = tmp;
+ memcpy(cm->name, name, len + 1);
+ return 0;
+}
+
+const char *cmesh_name(struct cmesh *cm)
+{
+ return cm->name;
+}
+
+int cmesh_has_attrib(struct cmesh *cm, int attr)
+{
+ if(attr < 0 || attr >= CMESH_NUM_ATTR) {
+ return 0;
+ }
+ return cm->vattr[attr].vbo_valid | cm->vattr[attr].data_valid;
+}
+
+int cmesh_indexed(struct cmesh *cm)
+{
+ return cm->ibo_valid | cm->idata_valid;
+}
+
+/* vdata can be 0, in which case only memory is allocated
+ * returns pointer to the attribute array
+ */
+float *cmesh_set_attrib(struct cmesh *cm, int attr, int nelem, unsigned int num,
+ const float *vdata)
+{
+ float *newarr;
+
+ if(attr < 0 || attr >= CMESH_NUM_ATTR) {
+ return 0;
+ }
+ if(cm->nverts && num != cm->nverts) {
+ return 0;
+ }
+
+ if(!(newarr = malloc(num * nelem * sizeof *newarr))) {
+ return 0;
+ }
+ if(vdata) {
+ memcpy(newarr, vdata, num * nelem * sizeof *newarr);
+ }
+
+ cm->nverts = num;
+
+ free(cm->vattr[attr].data);
+ cm->vattr[attr].data = newarr;
+ cm->vattr[attr].count = num * nelem;
+ cm->vattr[attr].nelem = nelem;
+ cm->vattr[attr].data_valid = 1;
+ cm->vattr[attr].vbo_valid = 0;
+ return newarr;
+}
+
+float *cmesh_attrib(struct cmesh *cm, int attr)
+{
+ if(attr < 0 || attr >= CMESH_NUM_ATTR) {
+ return 0;
+ }
+ cm->vattr[attr].vbo_valid = 0;
+ return (float*)cmesh_attrib_ro(cm, attr);
+}
+
+const float *cmesh_attrib_ro(struct cmesh *cm, int attr)
+{
+ void *tmp;
+ int nelem;
+
+ if(attr < 0 || attr >= CMESH_NUM_ATTR) {
+ return 0;
+ }
+
+ if(!cm->vattr[attr].data_valid) {
+#if defined(GL_ES_VERSION_2_0) || defined(NO_OPENGL)
+ return 0;
+#else
+ if(!cm->vattr[attr].vbo_valid) {
+ return 0;
+ }
+
+ /* local data copy unavailable, grab the data from the vbo */
+ nelem = cm->vattr[attr].nelem;
+ if(!(cm->vattr[attr].data = malloc(cm->nverts * nelem * sizeof(float)))) {
+ return 0;
+ }
+ cm->vattr[attr].count = cm->nverts * nelem;
+
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[attr].vbo);
+ tmp = glMapBuffer(GL_ARRAY_BUFFER, GL_READ_ONLY);
+ memcpy(cm->vattr[attr].data, tmp, cm->nverts * nelem * sizeof(float));
+ glUnmapBuffer(GL_ARRAY_BUFFER);
+
+ cm->vattr[attr].data_valid = 1;
+#endif
+ }
+ return cm->vattr[attr].data;
+}
+
+float *cmesh_attrib_at(struct cmesh *cm, int attr, int idx)
+{
+ float *vptr = cmesh_attrib(cm, attr);
+ return vptr ? vptr + idx * cm->vattr[attr].nelem : 0;
+}
+
+const float *cmesh_attrib_at_ro(struct cmesh *cm, int attr, int idx)
+{
+ const float *vptr = cmesh_attrib_ro(cm, attr);
+ return vptr ? vptr + idx * cm->vattr[attr].nelem : 0;
+}
+
+int cmesh_attrib_count(struct cmesh *cm, int attr)
+{
+ return cmesh_has_attrib(cm, attr) ? cm->nverts : 0;
+}
+
+int cmesh_push_attrib(struct cmesh *cm, int attr, float *v)
+{
+ float *vptr;
+ int i, cursz, newsz;
+
+ if(!cm->vattr[attr].nelem) {
+ cm->vattr[attr].nelem = def_nelem[attr];
+ }
+
+ cursz = cm->vattr[attr].count;
+ newsz = cursz + cm->vattr[attr].nelem;
+ if(!(vptr = realloc(cm->vattr[attr].data, newsz * sizeof(float)))) {
+ return -1;
+ }
+ cm->vattr[attr].data = vptr;
+ cm->vattr[attr].count = newsz;
+ vptr += cursz;
+
+ for(i=0; i<cm->vattr[attr].nelem; i++) {
+ *vptr++ = *v++;
+ }
+ cm->vattr[attr].data_valid = 1;
+ cm->vattr[attr].vbo_valid = 0;
+
+ if(attr == CMESH_ATTR_VERTEX) {
+ cm->nverts = newsz / cm->vattr[attr].nelem;
+ }
+ return 0;
+}
+
+int cmesh_push_attrib1f(struct cmesh *cm, int attr, float x)
+{
+ float v[4];
+ v[0] = x;
+ v[1] = v[2] = 0.0f;
+ v[3] = 1.0f;
+ return cmesh_push_attrib(cm, attr, v);
+}
+
+int cmesh_push_attrib2f(struct cmesh *cm, int attr, float x, float y)
+{
+ float v[4];
+ v[0] = x;
+ v[1] = y;
+ v[2] = 0.0f;
+ v[3] = 1.0f;
+ return cmesh_push_attrib(cm, attr, v);
+}
+
+int cmesh_push_attrib3f(struct cmesh *cm, int attr, float x, float y, float z)
+{
+ float v[4];
+ v[0] = x;
+ v[1] = y;
+ v[2] = z;
+ v[3] = 1.0f;
+ return cmesh_push_attrib(cm, attr, v);
+}
+
+int cmesh_push_attrib4f(struct cmesh *cm, int attr, float x, float y, float z, float w)
+{
+ float v[4];
+ v[0] = x;
+ v[1] = y;
+ v[2] = z;
+ v[3] = w;
+ return cmesh_push_attrib(cm, attr, v);
+}
+
+/* indices can be 0, in which case only memory is allocated
+ * returns pointer to the index array
+ */
+unsigned int *cmesh_set_index(struct cmesh *cm, int num, const unsigned int *indices)
+{
+ unsigned int *tmp;
+ int nidx = cm->nfaces * 3;
+
+ if(nidx && num != nidx) {
+ return 0;
+ }
+
+ if(!(tmp = malloc(num * sizeof *tmp))) {
+ return 0;
+ }
+ if(indices) {
+ memcpy(tmp, indices, num * sizeof *tmp);
+ }
+
+ free(cm->idata);
+ cm->idata = tmp;
+ cm->icount = num;
+ cm->idata_valid = 1;
+ cm->ibo_valid = 0;
+ return tmp;
+}
+
+unsigned int *cmesh_index(struct cmesh *cm)
+{
+ cm->ibo_valid = 0;
+ return (unsigned int*)cmesh_index_ro(cm);
+}
+
+const unsigned int *cmesh_index_ro(struct cmesh *cm)
+{
+ int nidx;
+ unsigned int *tmp;
+
+ if(!cm->idata_valid) {
+#if defined(GL_ES_VERSION_2_0) || defined(NO_OPENGL)
+ return 0;
+#else
+ if(!cm->ibo_valid) {
+ return 0;
+ }
+
+ /* local copy is unavailable, grab the data from the ibo */
+ nidx = cm->nfaces * 3;
+ if(!(tmp = malloc(nidx * sizeof *cm->idata))) {
+ return 0;
+ }
+ free(cm->idata);
+ cm->idata = tmp;
+ cm->icount = nidx;
+
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->ibo);
+ tmp = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_READ_ONLY);
+ memcpy(cm->idata, tmp, nidx * sizeof *cm->idata);
+ glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
+
+ cm->idata_valid = 1;
+#endif
+ }
+ return cm->idata;
+}
+
+int cmesh_index_count(struct cmesh *cm)
+{
+ return cm->nfaces * 3;
+}
+
+int cmesh_push_index(struct cmesh *cm, unsigned int idx)
+{
+ unsigned int *iptr;
+ unsigned int cur_sz = cm->icount;
+ if(!(iptr = realloc(cm->idata, (cur_sz + 1) * sizeof *iptr))) {
+ return -1;
+ }
+ iptr[cur_sz] = idx;
+ cm->idata = iptr;
+ cm->icount = cur_sz + 1;
+ cm->idata_valid = 1;
+ cm->ibo_valid = 0;
+
+ cm->nfaces = cm->icount / 3;
+ return 0;
+}
+
+int cmesh_poly_count(struct cmesh *cm)
+{
+ if(cm->nfaces) {
+ return cm->nfaces;
+ }
+ if(cm->nverts) {
+ return cm->nverts / 3;
+ }
+ return 0;
+}
+
+/* attr can be -1 to invalidate all attributes */
+void cmesh_invalidate_vbo(struct cmesh *cm, int attr)
+{
+ int i;
+
+ if(attr >= CMESH_NUM_ATTR) {
+ return;
+ }
+
+ if(attr < 0) {
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ cm->vattr[i].vbo_valid = 0;
+ }
+ } else {
+ cm->vattr[attr].vbo_valid = 0;
+ }
+}
+
+void cmesh_invalidate_index(struct cmesh *cm)
+{
+ cm->ibo_valid = 0;
+}
+
+int cmesh_append(struct cmesh *cmdest, struct cmesh *cmsrc)
+{
+ int i, nelem, newsz, origsz, srcsz;
+ float *vptr;
+ unsigned int *iptr;
+ unsigned int idxoffs;
+
+ if(!cmdest->nverts) {
+ return cmesh_clone(cmdest, cmsrc);
+ }
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ if(cmesh_has_attrib(cmdest, i) && cmesh_has_attrib(cmsrc, i)) {
+ /* force validation of the data arrays */
+ cmesh_attrib(cmdest, i);
+ cmesh_attrib_ro(cmsrc, i);
+
+ assert(cmdest->vattr[i].nelem == cmsrc->vattr[i].nelem);
+ nelem = cmdest->vattr[i].nelem;
+ origsz = cmdest->nverts * nelem;
+ newsz = cmdest->nverts + cmsrc->nverts * nelem;
+
+ if(!(vptr = realloc(cmdest->vattr[i].data, newsz * sizeof *vptr))) {
+ return -1;
+ }
+ memcpy(vptr + origsz, cmsrc->vattr[i].data, cmsrc->nverts * nelem * sizeof(float));
+ cmdest->vattr[i].data = vptr;
+ cmdest->vattr[i].count = newsz;
+ }
+ }
+
+ if(cmesh_indexed(cmdest)) {
+ assert(cmesh_indexed(cmsrc));
+ /* force validation ... */
+ cmesh_index(cmdest);
+ cmesh_index_ro(cmsrc);
+
+ idxoffs = cmdest->nverts;
+ origsz = cmdest->icount;
+ srcsz = cmsrc->icount;
+ newsz = origsz + srcsz;
+
+ if(!(iptr = realloc(cmdest->idata, newsz * sizeof *iptr))) {
+ return -1;
+ }
+ cmdest->idata = iptr;
+ cmdest->icount = newsz;
+
+ /* copy and fixup all the new indices */
+ iptr += origsz;
+ for(i=0; i<srcsz; i++) {
+ *iptr++ = cmsrc->idata[i] + idxoffs;
+ }
+ }
+
+ cmdest->wire_ibo_valid = 0;
+ cmdest->aabb_valid = 0;
+ cmdest->bsph_valid = 0;
+ return 0;
+}
+
+void cmesh_clear_submeshes(struct cmesh *cm)
+{
+ struct submesh *sm;
+
+ while(cm->sublist) {
+ sm = cm->sublist;
+ cm->sublist = cm->sublist->next;
+ free(sm->name);
+ free(sm);
+ }
+ cm->subcount = 0;
+}
+
+int cmesh_submesh(struct cmesh *cm, const char *name, int fstart, int fcount)
+{
+ int i;
+ unsigned int minv = UINT_MAX, maxv = 0;
+ unsigned int *iptr;
+ struct submesh *sm;
+
+ if(fstart < 0 || fcount < 1 || fstart + fcount > cm->nfaces) {
+ return -1;
+ }
+
+ if(!(sm = malloc(sizeof *sm)) || !(sm->name = malloc(strlen(name) + 1))) {
+ free(sm);
+ return -1;
+ }
+ strcpy(sm->name, name);
+ sm->nfaces = fcount;
+
+ if(cmesh_indexed(cm)) {
+ sm->istart = fstart * 3;
+ sm->icount = fcount * 3;
+
+ /* find out which vertices are used by this submesh */
+ iptr = cm->idata + sm->istart;
+ for(i=0; i<sm->icount; i++) {
+ unsigned int vidx = *iptr++;
+ if(vidx < minv) minv = vidx;
+ if(vidx > maxv) maxv = vidx;
+ }
+ sm->vstart = minv;
+ sm->vcount = maxv - minv + 1;
+ } else {
+ sm->istart = sm->icount = 0;
+ sm->vstart = fstart * 3;
+ sm->vcount = fcount * 3;
+ }
+
+ sm->next = cm->sublist;
+ cm->sublist = sm;
+ cm->subcount++;
+ return 0;
+}
+
+int cmesh_remove_submesh(struct cmesh *cm, int idx)
+{
+ struct submesh dummy;
+ struct submesh *prev, *sm;
+
+ if(idx >= cm->subcount) {
+ return -1;
+ }
+
+ dummy.next = cm->sublist;
+ prev = &dummy;
+
+ while(prev->next && idx-- > 0) {
+ prev = prev->next;
+ }
+
+ if(!(sm = prev->next)) return -1;
+
+ prev->next = sm->next;
+ free(sm->name);
+ free(sm);
+
+ cm->subcount--;
+ assert(cm->subcount >= 0);
+
+ cm->sublist = dummy.next;
+ return 0;
+}
+
+int cmesh_find_submesh(struct cmesh *cm, const char *name)
+{
+ int idx = 0;
+ struct submesh *sm = cm->sublist;
+ while(sm) {
+ if(strcmp(sm->name, name) == 0) {
+ assert(idx <= cm->subcount);
+ return idx;
+ }
+ idx++;
+ sm = sm->next;
+ }
+ return -1;
+}
+
+int cmesh_submesh_count(struct cmesh *cm)
+{
+ return cm->subcount;
+}
+
+static struct submesh *get_submesh(struct cmesh *m, int idx)
+{
+ struct submesh *sm = m->sublist;
+ while(sm && --idx >= 0) {
+ sm = sm->next;
+ }
+ return sm;
+}
+
+int cmesh_clone_submesh(struct cmesh *cmdest, struct cmesh *cm, int subidx)
+{
+ struct submesh *sub;
+
+ if(!(sub = get_submesh(cm, subidx))) {
+ return -1;
+ }
+ return clone(cmdest, cm, sub);
+}
+
+
+/* assemble a complete vertex by adding all the useful attributes */
+int cmesh_vertex(struct cmesh *cm, float x, float y, float z)
+{
+ int i, j;
+
+ cgm_wcons(cm->cur_val + CMESH_ATTR_VERTEX, x, y, z, 1.0f);
+ cm->vattr[CMESH_ATTR_VERTEX].data_valid = 1;
+ cm->vattr[CMESH_ATTR_VERTEX].nelem = 3;
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ if(cm->vattr[i].data_valid) {
+ int newsz = cm->vattr[i].count + cm->vattr[i].nelem;
+ float *tmp = realloc(cm->vattr[i].data, newsz * sizeof *tmp);
+ if(!tmp) return -1;
+ tmp += cm->vattr[i].count;
+
+ cm->vattr[i].data = tmp;
+ cm->vattr[i].count = newsz;
+
+ for(j=0; j<cm->vattr[i].nelem; j++) {
+ *tmp++ = *(&cm->cur_val[i].x + j);
+ }
+ }
+ cm->vattr[i].vbo_valid = 0;
+ cm->vattr[i].data_valid = 1;
+ }
+
+ if(cm->idata_valid) {
+ free(cm->idata);
+ cm->idata = 0;
+ cm->icount = 0;
+ }
+ cm->ibo_valid = cm->idata_valid = 0;
+ return 0;
+}
+
+void cmesh_normal(struct cmesh *cm, float nx, float ny, float nz)
+{
+ cgm_wcons(cm->cur_val + CMESH_ATTR_NORMAL, nx, ny, nz, 1.0f);
+ cm->vattr[CMESH_ATTR_NORMAL].nelem = 3;
+}
+
+void cmesh_tangent(struct cmesh *cm, float tx, float ty, float tz)
+{
+ cgm_wcons(cm->cur_val + CMESH_ATTR_TANGENT, tx, ty, tz, 1.0f);
+ cm->vattr[CMESH_ATTR_TANGENT].nelem = 3;
+}
+
+void cmesh_texcoord(struct cmesh *cm, float u, float v, float w)
+{
+ cgm_wcons(cm->cur_val + CMESH_ATTR_TEXCOORD, u, v, w, 1.0f);
+ cm->vattr[CMESH_ATTR_TEXCOORD].nelem = 3;
+}
+
+void cmesh_boneweights(struct cmesh *cm, float w1, float w2, float w3, float w4)
+{
+ cgm_wcons(cm->cur_val + CMESH_ATTR_BONEWEIGHTS, w1, w2, w3, w4);
+ cm->vattr[CMESH_ATTR_BONEWEIGHTS].nelem = 4;
+}
+
+void cmesh_boneidx(struct cmesh *cm, int idx1, int idx2, int idx3, int idx4)
+{
+ cgm_wcons(cm->cur_val + CMESH_ATTR_BONEIDX, idx1, idx2, idx3, idx4);
+ cm->vattr[CMESH_ATTR_BONEIDX].nelem = 4;
+}
+
+static float *get_vec4(struct cmesh *cm, int attr, int idx, cgm_vec4 *res)
+{
+ int i;
+ float *sptr, *dptr;
+ cgm_wcons(res, 0, 0, 0, 1);
+ if(!(sptr = cmesh_attrib_at(cm, attr, idx))) {
+ return 0;
+ }
+ dptr = &res->x;
+
+ for(i=0; i<cm->vattr[attr].nelem; i++) {
+ *dptr++ = sptr[i];
+ }
+ return sptr;
+}
+
+static float *get_vec3(struct cmesh *cm, int attr, int idx, cgm_vec3 *res)
+{
+ int i;
+ float *sptr, *dptr;
+ cgm_vcons(res, 0, 0, 0);
+ if(!(sptr = cmesh_attrib_at(cm, attr, idx))) {
+ return 0;
+ }
+ dptr = &res->x;
+
+ for(i=0; i<cm->vattr[attr].nelem; i++) {
+ *dptr++ = sptr[i];
+ }
+ return sptr;
+}
+
+/* dir_xform can be null, in which case it's calculated from xform */
+void cmesh_apply_xform(struct cmesh *cm, float *xform, float *dir_xform)
+{
+ unsigned int i;
+ int j;
+ cgm_vec4 v;
+ cgm_vec3 n, t;
+ float *vptr;
+
+ for(i=0; i<cm->nverts; i++) {
+ if(!(vptr = get_vec4(cm, CMESH_ATTR_VERTEX, i, &v))) {
+ return;
+ }
+ cgm_wmul_m4v4(&v, xform);
+ for(j=0; j<cm->vattr[CMESH_ATTR_VERTEX].nelem; j++) {
+ *vptr++ = (&v.x)[j];
+ }
+
+ if(cmesh_has_attrib(cm, CMESH_ATTR_NORMAL)) {
+ if((vptr = get_vec3(cm, CMESH_ATTR_NORMAL, i, &n))) {
+ cgm_vmul_m3v3(&n, dir_xform);
+ for(j=0; j<cm->vattr[CMESH_ATTR_NORMAL].nelem; j++) {
+ *vptr++ = (&n.x)[j];
+ }
+ }
+ }
+ if(cmesh_has_attrib(cm, CMESH_ATTR_TANGENT)) {
+ if((vptr = get_vec3(cm, CMESH_ATTR_TANGENT, i, &t))) {
+ cgm_vmul_m3v3(&t, dir_xform);
+ for(j=0; j<cm->vattr[CMESH_ATTR_TANGENT].nelem; j++) {
+ *vptr++ = (&t.x)[j];
+ }
+ }
+ }
+ }
+}
+
+void cmesh_flip(struct cmesh *cm)
+{
+ cmesh_flip_faces(cm);
+ cmesh_flip_normals(cm);
+}
+
+void cmesh_flip_faces(struct cmesh *cm)
+{
+ int i, j, idxnum, vnum, nelem;
+ unsigned int *indices;
+ float *verts, *vptr;
+
+ if(cmesh_indexed(cm)) {
+ if(!(indices = cmesh_index(cm))) {
+ return;
+ }
+ idxnum = cmesh_index_count(cm);
+ for(i=0; i<idxnum; i+=3) {
+ unsigned int tmp = indices[i + 2];
+ indices[i + 2] = indices[i + 1];
+ indices[i + 1] = tmp;
+ }
+ } else {
+ if(!(verts = cmesh_attrib(cm, CMESH_ATTR_VERTEX))) {
+ return;
+ }
+ vnum = cmesh_attrib_count(cm, CMESH_ATTR_VERTEX);
+ nelem = cm->vattr[CMESH_ATTR_VERTEX].nelem;
+ for(i=0; i<vnum; i+=3) {
+ for(j=0; j<nelem; j++) {
+ vptr = verts + (i + 1) * nelem + j;
+ float tmp = vptr[nelem];
+ vptr[nelem] = vptr[0];
+ vptr[0] = tmp;
+ }
+ }
+ }
+}
+void cmesh_flip_normals(struct cmesh *cm)
+{
+ int i, num;
+ float *nptr = cmesh_attrib(cm, CMESH_ATTR_NORMAL);
+ if(!nptr) return;
+
+ num = cm->nverts * cm->vattr[CMESH_ATTR_NORMAL].nelem;
+ for(i=0; i<num; i++) {
+ *nptr = -*nptr;
+ nptr++;
+ }
+}
+
+int cmesh_explode(struct cmesh *cm)
+{
+ int i, j, k, idxnum, nnverts;
+ unsigned int *indices;
+
+ if(!cmesh_indexed(cm)) return 0;
+
+ indices = cmesh_index(cm);
+ assert(indices);
+
+ idxnum = cmesh_index_count(cm);
+ nnverts = idxnum;
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ const float *srcbuf;
+ float *tmpbuf, *dstptr;
+
+ if(!cmesh_has_attrib(cm, i)) continue;
+
+ srcbuf = cmesh_attrib(cm, i);
+ if(!(tmpbuf = malloc(nnverts * cm->vattr[i].nelem * sizeof(float)))) {
+ return -1;
+ }
+ dstptr = tmpbuf;
+
+ for(j=0; j<idxnum; j++) {
+ unsigned int idx = indices[j];
+ const float *srcptr = srcbuf + idx * cm->vattr[i].nelem;
+
+ for(k=0; k<cm->vattr[i].nelem; k++) {
+ *dstptr++ = *srcptr++;
+ }
+ }
+
+ free(cm->vattr[i].data);
+ cm->vattr[i].data = tmpbuf;
+ cm->vattr[i].count = nnverts * cm->vattr[i].nelem;
+ cm->vattr[i].data_valid = 1;
+ }
+
+ cm->ibo_valid = 0;
+ cm->idata_valid = 0;
+ free(cm->idata);
+ cm->idata = 0;
+ cm->icount = 0;
+
+ cm->nverts = nnverts;
+ cm->nfaces = idxnum / 3;
+ return 0;
+}
+
+void cmesh_calc_face_normals(struct cmesh *cm)
+{
+ /* TODO */
+}
+
+#ifndef NO_OPENGL
+static int pre_draw(struct cmesh *cm)
+{
+ int i, loc, cur_sdr;
+
+ glGetIntegerv(GL_CURRENT_PROGRAM, &cur_sdr);
+
+ update_buffers(cm);
+
+ if(!cm->vattr[CMESH_ATTR_VERTEX].vbo_valid) {
+ return -1;
+ }
+
+ if(cur_sdr && use_custom_sdr_attr) {
+ if(sdr_loc[CMESH_ATTR_VERTEX] == -1) {
+ return -1;
+ }
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ loc = sdr_loc[i];
+ if(loc >= 0 && cm->vattr[i].vbo_valid) {
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[i].vbo);
+ glVertexAttribPointer(loc, cm->vattr[i].nelem, GL_FLOAT, GL_FALSE, 0, 0);
+ glEnableVertexAttribArray(loc);
+ }
+ }
+ } else {
+#ifndef GL_ES_VERSION_2_0
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[CMESH_ATTR_VERTEX].vbo);
+ glVertexPointer(cm->vattr[CMESH_ATTR_VERTEX].nelem, GL_FLOAT, 0, 0);
+ glEnableClientState(GL_VERTEX_ARRAY);
+
+ if(cm->vattr[CMESH_ATTR_NORMAL].vbo_valid) {
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[CMESH_ATTR_NORMAL].vbo);
+ glNormalPointer(GL_FLOAT, 0, 0);
+ glEnableClientState(GL_NORMAL_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_TEXCOORD].vbo_valid) {
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[CMESH_ATTR_TEXCOORD].vbo);
+ glTexCoordPointer(cm->vattr[CMESH_ATTR_TEXCOORD].nelem, GL_FLOAT, 0, 0);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_COLOR].vbo_valid) {
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[CMESH_ATTR_COLOR].vbo);
+ glColorPointer(cm->vattr[CMESH_ATTR_COLOR].nelem, GL_FLOAT, 0, 0);
+ glEnableClientState(GL_COLOR_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_TEXCOORD2].vbo_valid) {
+ glClientActiveTexture(GL_TEXTURE1);
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[CMESH_ATTR_TEXCOORD2].vbo);
+ glTexCoordPointer(cm->vattr[CMESH_ATTR_TEXCOORD2].nelem, GL_FLOAT, 0, 0);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glClientActiveTexture(GL_TEXTURE0);
+ }
+#endif /* GL_ES_VERSION_2_0 */
+ }
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ return cur_sdr;
+}
+
+void cmesh_draw(struct cmesh *cm)
+{
+ int cur_sdr;
+
+ if((cur_sdr = pre_draw(cm)) == -1) {
+ return;
+ }
+
+ if(cm->ibo_valid) {
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->ibo);
+ glDrawElements(GL_TRIANGLES, cm->nfaces * 3, GL_UNSIGNED_INT, 0);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ } else {
+ glDrawArrays(GL_TRIANGLES, 0, cm->nverts);
+ }
+
+ post_draw(cm, cur_sdr);
+}
+
+void cmesh_draw_range(struct cmesh *cm, int start, int count)
+{
+ int cur_sdr;
+
+ if((cur_sdr = pre_draw(cm)) == -1) {
+ return;
+ }
+
+ if(cm->ibo_valid) {
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->ibo);
+ glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, (void*)(start * 4));
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ } else {
+ glDrawArrays(GL_TRIANGLES, start, count);
+ }
+
+ post_draw(cm, cur_sdr);
+}
+
+void cmesh_draw_submesh(struct cmesh *cm, int subidx)
+{
+ struct submesh *sm = cm->sublist;
+
+ while(sm && subidx-- > 0) {
+ sm = sm->next;
+ }
+ if(!sm) return;
+
+ if(sm->icount) {
+ cmesh_draw_range(cm, sm->istart, sm->icount);
+ } else {
+ cmesh_draw_range(cm, sm->vstart, sm->vcount);
+ }
+}
+
+static void post_draw(struct cmesh *cm, int cur_sdr)
+{
+ int i;
+
+ if(cur_sdr && use_custom_sdr_attr) {
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ int loc = sdr_loc[i];
+ if(loc >= 0 && cm->vattr[i].vbo_valid) {
+ glDisableVertexAttribArray(loc);
+ }
+ }
+ } else {
+#ifndef GL_ES_VERSION_2_0
+ glDisableClientState(GL_VERTEX_ARRAY);
+ if(cm->vattr[CMESH_ATTR_NORMAL].vbo_valid) {
+ glDisableClientState(GL_NORMAL_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_TEXCOORD].vbo_valid) {
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_COLOR].vbo_valid) {
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+ if(cm->vattr[CMESH_ATTR_TEXCOORD2].vbo_valid) {
+ glClientActiveTexture(GL_TEXTURE1);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ glClientActiveTexture(GL_TEXTURE0);
+ }
+#endif /* GL_ES_VERSION_2_0 */
+ }
+}
+
+void cmesh_draw_wire(struct cmesh *cm, float linesz)
+{
+ int cur_sdr, nfaces;
+
+ if((cur_sdr = pre_draw(cm)) == -1) {
+ return;
+ }
+ update_wire_ibo(cm);
+
+ nfaces = cmesh_poly_count(cm);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->wire_ibo);
+ glDrawElements(GL_LINES, nfaces * 6, GL_UNSIGNED_INT, 0);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+ post_draw(cm, cur_sdr);
+}
+
+void cmesh_draw_vertices(struct cmesh *cm, float ptsz)
+{
+ int cur_sdr;
+ if((cur_sdr = pre_draw(cm)) == -1) {
+ return;
+ }
+
+ glPushAttrib(GL_POINT_BIT);
+ glPointSize(ptsz);
+ glDrawArrays(GL_POINTS, 0, cm->nverts);
+ glPopAttrib();
+
+ post_draw(cm, cur_sdr);
+}
+
+void cmesh_draw_normals(struct cmesh *cm, float len)
+{
+#ifndef GL_ES_VERSION_2_0
+ int i, cur_sdr, vert_nelem, norm_nelem;
+ int loc = -1;
+ const float *varr, *norm;
+
+ varr = cmesh_attrib_ro(cm, CMESH_ATTR_VERTEX);
+ norm = cmesh_attrib_ro(cm, CMESH_ATTR_NORMAL);
+ if(!varr || !norm) return;
+
+ vert_nelem = cm->vattr[CMESH_ATTR_VERTEX].nelem;
+ norm_nelem = cm->vattr[CMESH_ATTR_NORMAL].nelem;
+
+ glGetIntegerv(GL_CURRENT_PROGRAM, &cur_sdr);
+ if(cur_sdr && use_custom_sdr_attr) {
+ if((loc = sdr_loc[CMESH_ATTR_VERTEX]) < 0) {
+ return;
+ }
+ }
+
+ glBegin(GL_LINES);
+ for(i=0; i<cm->nverts; i++) {
+ float x, y, z, endx, endy, endz;
+
+ x = varr[i * vert_nelem];
+ y = varr[i * vert_nelem + 1];
+ z = varr[i * vert_nelem + 2];
+ endx = x + norm[i * norm_nelem] * len;
+ endy = y + norm[i * norm_nelem + 1] * len;
+ endz = z + norm[i * norm_nelem + 2] * len;
+
+ if(loc == -1) {
+ glVertex3f(x, y, z);
+ glVertex3f(endx, endy, endz);
+ } else {
+ glVertexAttrib3f(loc, x, y, z);
+ glVertexAttrib3f(loc, endx, endy, endz);
+ }
+ }
+ glEnd();
+#endif /* GL_ES_VERSION_2_0 */
+}
+
+void cmesh_draw_tangents(struct cmesh *cm, float len)
+{
+#ifndef GL_ES_VERSION_2_0
+ int i, cur_sdr, vert_nelem, tang_nelem;
+ int loc = -1;
+ const float *varr, *tang;
+
+ varr = cmesh_attrib_ro(cm, CMESH_ATTR_VERTEX);
+ tang = cmesh_attrib_ro(cm, CMESH_ATTR_TANGENT);
+ if(!varr || !tang) return;
+
+ vert_nelem = cm->vattr[CMESH_ATTR_VERTEX].nelem;
+ tang_nelem = cm->vattr[CMESH_ATTR_TANGENT].nelem;
+
+ glGetIntegerv(GL_CURRENT_PROGRAM, &cur_sdr);
+ if(cur_sdr && use_custom_sdr_attr) {
+ if((loc = sdr_loc[CMESH_ATTR_VERTEX]) < 0) {
+ return;
+ }
+ }
+
+ glBegin(GL_LINES);
+ for(i=0; i<cm->nverts; i++) {
+ float x, y, z, endx, endy, endz;
+
+ x = varr[i * vert_nelem];
+ y = varr[i * vert_nelem + 1];
+ z = varr[i * vert_nelem + 2];
+ endx = x + tang[i * tang_nelem] * len;
+ endy = y + tang[i * tang_nelem + 1] * len;
+ endz = z + tang[i * tang_nelem + 2] * len;
+
+ if(loc == -1) {
+ glVertex3f(x, y, z);
+ glVertex3f(endx, endy, endz);
+ } else {
+ glVertexAttrib3f(loc, x, y, z);
+ glVertexAttrib3f(loc, endx, endy, endz);
+ }
+ }
+ glEnd();
+#endif /* GL_ES_VERSION_2_0 */
+}
+
+static void update_buffers(struct cmesh *cm)
+{
+ int i;
+
+ for(i=0; i<CMESH_NUM_ATTR; i++) {
+ if(cmesh_has_attrib(cm, i) && !cm->vattr[i].vbo_valid) {
+ glBindBuffer(GL_ARRAY_BUFFER, cm->vattr[i].vbo);
+ glBufferData(GL_ARRAY_BUFFER, cm->nverts * cm->vattr[i].nelem * sizeof(float),
+ cm->vattr[i].data, GL_STATIC_DRAW);
+ cm->vattr[i].vbo_valid = 1;
+ }
+ }
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+
+ if(cm->idata_valid && !cm->ibo_valid) {
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->ibo);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, cm->nfaces * 3 * sizeof(unsigned int),
+ cm->idata, GL_STATIC_DRAW);
+ cm->ibo_valid = 1;
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+ }
+}
+
+static void update_wire_ibo(struct cmesh *cm)
+{
+ int i, num_faces;
+ unsigned int *wire_idxarr, *dest;
+
+ update_buffers(cm);
+
+ if(cm->wire_ibo_valid) return;
+
+ if(!cm->wire_ibo) {
+ glGenBuffers(1, &cm->wire_ibo);
+ }
+ num_faces = cmesh_poly_count(cm);
+
+ if(!(wire_idxarr = malloc(num_faces * 6 * sizeof *wire_idxarr))) {
+ return;
+ }
+ dest = wire_idxarr;
+
+ if(cm->ibo_valid) {
+ /* we're dealing with an indexed mesh */
+ const unsigned int *idxarr = cmesh_index_ro(cm);
+
+ for(i=0; i<num_faces; i++) {
+ *dest++ = idxarr[0];
+ *dest++ = idxarr[1];
+ *dest++ = idxarr[1];
+ *dest++ = idxarr[2];
+ *dest++ = idxarr[2];
+ *dest++ = idxarr[0];
+ idxarr += 3;
+ }
+ } else {
+ /* not an indexed mesh */
+ for(i=0; i<num_faces; i++) {
+ int vidx = i * 3;
+ *dest++ = vidx;
+ *dest++ = vidx + 1;
+ *dest++ = vidx + 1;
+ *dest++ = vidx + 2;
+ *dest++ = vidx + 2;
+ *dest++ = vidx;
+ }
+ }
+
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cm->wire_ibo);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, num_faces * 6 * sizeof(unsigned int),
+ wire_idxarr, GL_STATIC_DRAW);
+ free(wire_idxarr);
+ cm->wire_ibo_valid = 1;
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+}
+#endif /* !def NO_OPENGL */
+
+static void calc_aabb(struct cmesh *cm)
+{
+ int i, j;
+
+ if(!cmesh_attrib_ro(cm, CMESH_ATTR_VERTEX)) {
+ return;
+ }
+
+ cgm_vcons(&cm->aabb_min, FLT_MAX, FLT_MAX, FLT_MAX);
+ cgm_vcons(&cm->aabb_max, -FLT_MAX, -FLT_MAX, -FLT_MAX);
+
+ for(i=0; i<cm->nverts; i++) {
+ const float *v = cmesh_attrib_at_ro(cm, CMESH_ATTR_VERTEX, i);
+ for(j=0; j<3; j++) {
+ if(v[j] < (&cm->aabb_min.x)[j]) {
+ (&cm->aabb_min.x)[j] = v[j];
+ }
+ if(v[j] > (&cm->aabb_max.x)[j]) {
+ (&cm->aabb_max.x)[j] = v[j];
+ }
+ }
+ }
+ cm->aabb_valid = 1;
+}
+
+void cmesh_aabbox(struct cmesh *cm, cgm_vec3 *vmin, cgm_vec3 *vmax)
+{
+ if(!cm->aabb_valid) {
+ calc_aabb(cm);
+ }
+ *vmin = cm->aabb_min;
+ *vmax = cm->aabb_max;
+}
+
+static void calc_bsph(struct cmesh *cm)
+{
+ int i;
+ float s, dist_sq;
+
+ if(!cmesh_attrib_ro(cm, CMESH_ATTR_VERTEX)) {
+ return;
+ }
+
+ cgm_vcons(&cm->bsph_center, 0, 0, 0);
+
+ /* first find the center */
+ for(i=0; i<cm->nverts; i++) {
+ const float *v = cmesh_attrib_at_ro(cm, CMESH_ATTR_VERTEX, i);
+ cm->bsph_center.x += v[0];
+ cm->bsph_center.y += v[1];
+ cm->bsph_center.z += v[2];
+ }
+ s = 1.0f / (float)cm->nverts;
+ cm->bsph_center.x *= s;
+ cm->bsph_center.y *= s;
+ cm->bsph_center.z *= s;
+
+ cm->bsph_radius = 0.0f;
+ for(i=0; i<cm->nverts; i++) {
+ const cgm_vec3 *v = (const cgm_vec3*)cmesh_attrib_at_ro(cm, CMESH_ATTR_VERTEX, i);
+ if((dist_sq = cgm_vdist_sq(v, &cm->bsph_center)) > cm->bsph_radius) {
+ cm->bsph_radius = dist_sq;
+ }
+ }
+ cm->bsph_radius = sqrt(cm->bsph_radius);
+ cm->bsph_valid = 1;
+}
+
+float cmesh_bsphere(struct cmesh *cm, cgm_vec3 *center, float *rad)
+{
+ if(!cm->bsph_valid) {
+ calc_bsph(cm);
+ }
+ *center = cm->bsph_center;
+ *rad = cm->bsph_radius;
+ return cm->bsph_radius;
+}
+
+/* TODO */
+void cmesh_texcoord_apply_xform(struct cmesh *cm, float *xform);
+void cmesh_texcoord_gen_plane(struct cmesh *cm, cgm_vec3 *norm, cgm_vec3 *tang);
+void cmesh_texcoord_gen_box(struct cmesh *cm);
+void cmesh_texcoord_gen_cylinder(struct cmesh *cm);
+
+int cmesh_dump(struct cmesh *cm, const char *fname)
+{
+ FILE *fp = fopen(fname, "wb");
+ if(fp) {
+ int res = cmesh_dump_file(cm, fp);
+ fclose(fp);
+ return res;
+ }
+ return -1;
+}
+
+int cmesh_dump_file(struct cmesh *cm, FILE *fp)
+{
+ static const char *label[] = { "pos", "nor", "tan", "tex", "col", "bw", "bid", "tex2" };
+ static const char *elemfmt[] = { 0, " %s(%g)", " %s(%g, %g)", " %s(%g, %g, %g)", " %s(%g, %g, %g, %g)", 0 };
+ int i, j;
+
+ if(!cmesh_has_attrib(cm, CMESH_ATTR_VERTEX)) {
+ return -1;
+ }
+
+ fprintf(fp, "VERTEX ATTRIBUTES\n");
+
+ for(i=0; i<cm->nverts; i++) {
+ fprintf(fp, "%5u:", i);
+ for(j=0; j<CMESH_NUM_ATTR; j++) {
+ if(cmesh_has_attrib(cm, j)) {
+ const float *v = cmesh_attrib_at_ro(cm, j, i);
+ int nelem = cm->vattr[j].nelem;
+ fprintf(fp, elemfmt[nelem], label[j], v[0], nelem > 1 ? v[1] : 0.0f,
+ nelem > 2 ? v[2] : 0.0f, nelem > 3 ? v[3] : 0.0f);
+ }
+ }
+ fputc('\n', fp);
+ }
+
+ if(cmesh_indexed(cm)) {
+ const unsigned int *idx = cmesh_index_ro(cm);
+ int numidx = cmesh_index_count(cm);
+ int numtri = numidx / 3;
+ assert(numidx % 3 == 0);
+
+ fprintf(fp, "FACES\n");
+
+ for(i=0; i<numtri; i++) {
+ fprintf(fp, "%5d: %d %d %d\n", i, idx[0], idx[1], idx[2]);
+ idx += 3;
+ }
+ }
+ return 0;
+}
+
+int cmesh_dump_obj(struct cmesh *cm, const char *fname)
+{
+ FILE *fp = fopen(fname, "wb");
+ if(fp) {
+ int res = cmesh_dump_obj_file(cm, fp, 0);
+ fclose(fp);
+ return res;
+ }
+ return -1;
+}
+
+#define HAS_VN 1
+#define HAS_VT 2
+
+int cmesh_dump_obj_file(struct cmesh *cm, FILE *fp, int voffs)
+{
+ static const char *fmtstr[] = {" %u", " %u//%u", " %u/%u", " %u/%u/%u"};
+ int i, j, num, nelem;
+ unsigned int aflags = 0;
+
+ if(!cmesh_has_attrib(cm, CMESH_ATTR_VERTEX)) {
+ return -1;
+ }
+
+
+ nelem = cm->vattr[CMESH_ATTR_VERTEX].nelem;
+ if((num = cm->vattr[CMESH_ATTR_VERTEX].count) != cm->nverts * nelem) {
+ fprintf(stderr, "vertex array size (%d) != nverts (%d)\n", num, cm->nverts);
+ }
+ for(i=0; i<cm->nverts; i++) {
+ const float *v = cmesh_attrib_at_ro(cm, CMESH_ATTR_VERTEX, i);
+ fprintf(fp, "v %f %f %f\n", v[0], nelem > 1 ? v[1] : 0.0f, nelem > 2 ? v[2] : 0.0f);
+ }
+
+ if(cmesh_has_attrib(cm, CMESH_ATTR_NORMAL)) {
+ aflags |= HAS_VN;
+ nelem = cm->vattr[CMESH_ATTR_NORMAL].nelem;
+ if((num = cm->vattr[CMESH_ATTR_NORMAL].count) != cm->nverts * nelem) {
+ fprintf(stderr, "normal array size (%d) != nverts (%d)\n", num, cm->nverts);
+ }
+ for(i=0; i<cm->nverts; i++) {
+ const float *v = cmesh_attrib_at_ro(cm, CMESH_ATTR_NORMAL, i);
+ fprintf(fp, "vn %f %f %f\n", v[0], nelem > 1 ? v[1] : 0.0f, nelem > 2 ? v[2] : 0.0f);
+ }
+ }
+
+ if(cmesh_has_attrib(cm, CMESH_ATTR_TEXCOORD)) {
+ aflags |= HAS_VT;
+ nelem = cm->vattr[CMESH_ATTR_TEXCOORD].nelem;
+ if((num = cm->vattr[CMESH_ATTR_TEXCOORD].count) != cm->nverts * nelem) {
+ fprintf(stderr, "texcoord array size (%d) != nverts (%d)\n", num, cm->nverts);
+ }
+ for(i=0; i<cm->nverts; i++) {
+ const float *v = cmesh_attrib_at_ro(cm, CMESH_ATTR_TEXCOORD, i);
+ fprintf(fp, "vt %f %f\n", v[0], nelem > 1 ? v[1] : 0.0f);
+ }
+ }
+
+ if(cmesh_indexed(cm)) {
+ const unsigned int *idxptr = cmesh_index_ro(cm);
+ int numidx = cmesh_index_count(cm);
+ int numtri = numidx / 3;
+ assert(numidx % 3 == 0);
+
+ for(i=0; i<numtri; i++) {
+ fputc('f', fp);
+ for(j=0; j<3; j++) {
+ unsigned int idx = *idxptr++ + 1 + voffs;
+ fprintf(fp, fmtstr[aflags], idx, idx, idx);
+ }
+ fputc('\n', fp);
+ }
+ } else {
+ int numtri = cm->nverts / 3;
+ unsigned int idx = 1 + voffs;
+ for(i=0; i<numtri; i++) {
+ fputc('f', fp);
+ for(j=0; j<3; j++) {
+ fprintf(fp, fmtstr[aflags], idx, idx, idx);
+ ++idx;
+ }
+ fputc('\n', fp);
+ }
+ }
+ return 0;
+}
projects / gbajam22 / commitdiff