significantly improved code quality / readability
parent
db2aaf6827
commit
f320b32a6d
211
src/main.c
211
src/main.c
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@ -4,22 +4,24 @@
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#define ANTIALIASING true
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static uint8_t shadowtable[] = {192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
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208,208,208,209,208,208,208,209,208,208,208,209,212,212,212,213, \
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192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202, \
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192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202, \
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208,208,209,210,208,208,209,210,212,212,213,214,216,216,217,218, \
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224,224,225,226,224,224,225,226,228,228,229,230,232,232,233,234, \
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192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, \
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208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, \
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224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, \
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240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};
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static uint8_t shadowtable[] = {
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,
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192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197,
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197,
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192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197,
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208,208,208,209,208,208,208,209,208,208,208,209,212,212,212,213,
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192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202,
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192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202,
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208,208,209,210,208,208,209,210,212,212,213,214,216,216,217,218,
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224,224,225,226,224,224,225,226,228,228,229,230,232,232,233,234,
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192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
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208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
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224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
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240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,
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};
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// alpha should only be 0b??111111 where ?? = 00 (full shade), 01 (much shade), 10 (some shade), 11 (none shade)
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static uint8_t alpha = 0b10111111;
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@ -67,83 +69,76 @@ static int32_t get_angle_for_hour(int hour, int minute) {
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return (((hour * 360) / 12)+(get_angle_for_minute(minute)/12));
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}
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static uint8_t un_heptet_x(uint16_t heptetindex) {
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uint16_t heptoffset = heptetindex / 8;
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uint8_t heptet = donutsurfacemapred[heptetindex-heptoffset];
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static uint8_t un_heptet(uint16_t heptetindex, uint8_t *map) {
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uint16_t heptoffset = heptetindex/8;
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uint8_t heptet = map[heptetindex-heptoffset];
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// actually don't even bother getting this right, it looks fine even without decoding the spread out heptet
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/*if (heptetindex%8 == 6) {
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heptet =
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(donutsurfacemapred[heptetindex-heptoffset-6]&0b00000001)<<6 |
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(donutsurfacemapred[heptetindex-heptoffset-5]&0b00000001)<<5 |
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(donutsurfacemapred[heptetindex-heptoffset-4]&0b00000001)<<4 |
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(donutsurfacemapred[heptetindex-heptoffset-3]&0b00000001)<<3 |
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(donutsurfacemapred[heptetindex-heptoffset-2]&0b00000001)<<2 |
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(donutsurfacemapred[heptetindex-heptoffset-1]&0b00000001)<<1 |
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(donutsurfacemapred[heptetindex-heptoffset]&0b00000001);
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} else {*/
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(map[heptetindex-heptoffset-6]&0b00000001)<<6 |
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(map[heptetindex-heptoffset-5]&0b00000001)<<5 |
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(map[heptetindex-heptoffset-4]&0b00000001)<<4 |
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(map[heptetindex-heptoffset-3]&0b00000001)<<3 |
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(map[heptetindex-heptoffset-2]&0b00000001)<<2 |
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(map[heptetindex-heptoffset-1]&0b00000001)<<1 |
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(map[heptetindex-heptoffset]&0b00000001);
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} else {
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heptet = heptet >> 1;
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/*}*/
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return (heptet+16);
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}
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static uint8_t un_heptet_y(uint16_t heptetindex) {
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uint16_t heptoffset = heptetindex / 8;
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uint8_t heptet = donutsurfacemapgreen[heptetindex-heptoffset];
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}*/
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heptet = heptet >> 1;
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return (127-heptet);
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return (heptet);
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}
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static void update_proc(Layer *layer, GContext *ctx) {
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GColor bgcolor = GColorPurple;
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GRect bounds = layer_get_bounds(layer);
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graphics_context_set_fill_color(ctx, GColorRajah);
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graphics_fill_rect(ctx, bounds, 0, GCornerNone);
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graphics_context_set_antialiased(ctx, ANTIALIASING);
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GRect bounds_h = bounds;
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bounds_h.size.h = bounds_h.size.w;
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bounds_h.origin.x -= (bounds_h.size.w-bounds.size.w)/2;
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GRect bounds_mo = grect_inset(bounds_h, GEdgeInsets(19));
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GRect bounds_ho = grect_inset(bounds_h, GEdgeInsets(32));
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GRect texturebounds = GRect(s_center.x-64, s_center.y-64, 127, 127);
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GRect bounds_mo = grect_inset(texturebounds, GEdgeInsets(9));
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GRect bounds_ho = grect_inset(texturebounds, GEdgeInsets(23));
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// Adjust for minutes through the hour
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int32_t hour_deg = get_angle_for_hour(s_last_time.hours, s_last_time.minutes);
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int32_t minute_deg = get_angle_for_minute(s_last_time.minutes);
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// draw the watch hands that will be used as texture
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GPoint minute_hand_outer = gpoint_from_polar(bounds_mo, GOvalScaleModeFillCircle, DEG_TO_TRIGANGLE(minute_deg));
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GPoint hour_hand_outer = gpoint_from_polar(bounds_ho, GOvalScaleModeFillCircle, DEG_TO_TRIGANGLE(hour_deg));
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// draw the watch hands that will be used as texture
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graphics_context_set_antialiased(ctx, ANTIALIASING);
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graphics_context_set_fill_color(ctx, GColorRajah);
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graphics_fill_rect(ctx, bounds, 0, GCornerNone);
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graphics_context_set_stroke_color(ctx, GColorWindsorTan);
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graphics_context_set_stroke_width(ctx, whwidth);
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graphics_draw_line(ctx, s_center, minute_hand_outer);
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graphics_context_set_stroke_color(ctx, GColorBulgarianRose);
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graphics_context_set_stroke_width(ctx, whwidth);
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graphics_draw_line(ctx, s_center, hour_hand_outer);
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graphics_context_set_fill_color(ctx, GColorWhite);
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graphics_fill_circle(ctx, s_center, whwidth/4);
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// define mapping metadata
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GPoint donutoffset = GPoint(9, 42);
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GPoint shadowoffset = GPoint(7, 58);
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GPoint specularoffset = GPoint(40, 50);
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GSize mapdimensions = GSize(125, 80);
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GPoint master_offset = GPoint(s_center.x-(mapdimensions.w/2), s_center.y-(mapdimensions.h/2)+4);
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GRect mapbounds = GRect(master_offset.x, master_offset.y, mapdimensions.w, mapdimensions.h);
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GRect shadowbounds = GRect(master_offset.x-2, master_offset.y+16, 122, 71);
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GRect specularbounds = GRect(master_offset.x+31, master_offset.y+8, 74, 47);
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GSize donutsurfacemapsize = GSize(125, 80);
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GSize donutshadowsize = GSize(122, 71);
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GSize donutspecularsize = GSize(74, 47);
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GColor bgcolor = GColorPurple;
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GColor highlight = GColorIcterine;
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// capture frame buffer
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GBitmap *fb = graphics_capture_frame_buffer(ctx);
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// set up texture buffer
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GRect texturebounds = GRect(s_center.x-64, s_center.y-64, 127, 127);
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GSize texturesize = GSize(texturebounds.size.w, texturebounds.size.h);
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GBitmap *texture = gbitmap_create_blank(texturesize, GBitmapFormat8Bit);
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uint8_t (*texture_matrix)[texturesize.w] = (uint8_t (*)[texturesize.w]) gbitmap_get_data(texture);
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// capture texture and fill frame buffer with new background color
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for(int y = 0; y < bounds.size.h; y++) {
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for(uint8_t y = 0; y < bounds.size.h; y++) {
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GBitmapDataRowInfo info = gbitmap_get_data_row_info(fb, y);
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for(int x = info.min_x; x < info.max_x; x++) {
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for(uint8_t x = info.min_x; x <= info.max_x; x++) {
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if (x >= texturebounds.origin.x && y >= texturebounds.origin.y && x < texturebounds.origin.x+texturebounds.size.w && y < texturebounds.origin.y+texturebounds.size.h) {
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texture_matrix[y-texturebounds.origin.y][x-texturebounds.origin.x] = info.data[x];
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}
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@ -151,106 +146,47 @@ static void update_proc(Layer *layer, GContext *ctx) {
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}
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}
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// render texture mapped around shape by looking up pixels in the lookup table
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for(int y = 0; y < donutsurfacemapsize.h; y++) {
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GBitmapDataRowInfo info = gbitmap_get_data_row_info(fb, y+donutoffset.y);
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for(int x = donutoffset.x; x < donutsurfacemapsize.w+donutoffset.x; x++) {
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if (x+donutoffset.x < info.max_x && x+donutoffset.x >= info.min_x) {
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uint16_t surfindex = x+(y*donutsurfacemapsize.w)-donutoffset.x;
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uint8_t xpos = un_heptet_x(surfindex);
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uint8_t ypos = un_heptet_y(surfindex);
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// render texture mapped and shaded object
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for(uint8_t y = 0; y < bounds.size.h; y++) {
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GBitmapDataRowInfo info = gbitmap_get_data_row_info(fb, y);
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for(uint8_t x = info.min_x; x <= info.max_x; x++) {
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// render texture mapped object by looking up pixels in the lookup table
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if (x >= mapbounds.origin.x && y >= mapbounds.origin.y && x < mapbounds.origin.x+mapbounds.size.w && y < mapbounds.origin.y+mapbounds.size.h) {
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uint16_t surfindex = (x-mapbounds.origin.x)+((y-mapbounds.origin.y)*mapbounds.size.w);
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//uint8_t xpos = 16+un_heptet_x(surfindex);
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uint8_t xpos = 16+un_heptet(surfindex, donutsurfacemapred);
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uint8_t ypos = 127-un_heptet(surfindex, donutsurfacemapgreen);
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if (xpos > 0 && ypos < 127) {
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memset(&info.data[x], texture_matrix[ypos][xpos], 1);
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}
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}
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}
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}
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// render shadows
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for(int y = 0; y < donutshadowsize.h; y++) {
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GBitmapDataRowInfo info = gbitmap_get_data_row_info(fb, y+shadowoffset.y);
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for(int x = shadowoffset.x; x < donutshadowsize.w+shadowoffset.x; x++) {
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if (x+shadowoffset.x < info.max_x && x+shadowoffset.x >= info.min_x) {
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uint16_t shad_index = x+(y*donutshadowsize.w)-shadowoffset.x;
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// render shadows
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if (x >= shadowbounds.origin.x && y >= shadowbounds.origin.y && x < shadowbounds.origin.x+shadowbounds.size.w && y < shadowbounds.origin.y+shadowbounds.size.h) {
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uint16_t shad_index = (x-shadowbounds.origin.x)+((y-shadowbounds.origin.y)*shadowbounds.size.w);
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uint8_t shad_octet = donutshadow[shad_index/8];
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bool shad_dark = 0;
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if (info.data[x] != bgcolor.argb && (x+y) % 2 == 0) {
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shad_dark = 0;
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// keep shadowless, creating dithering effect
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} else {
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switch (shad_index % 8) {
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case 0:
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shad_dark = 0b10000000 & shad_octet;
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break;
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case 1:
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shad_dark = 0b01000000 & shad_octet;
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break;
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case 2:
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shad_dark = 0b00100000 & shad_octet;
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break;
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case 3:
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shad_dark = 0b00010000 & shad_octet;
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break;
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case 4:
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shad_dark = 0b00001000 & shad_octet;
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break;
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case 5:
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shad_dark = 0b00000100 & shad_octet;
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break;
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case 6:
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shad_dark = 0b00000010 & shad_octet;
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break;
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case 7:
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shad_dark = 0b00000001 & shad_octet;
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break;
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}
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// fetch single bit out of bitfield
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shad_dark = (0b10000000 >> shad_index%8) & shad_octet;
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}
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if (shad_dark) {
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memset(&info.data[x], shadowtable[alpha & info.data[x]], 1);
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}
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}
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}
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}
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// render highlights
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for(int y = 0; y < donutspecularsize.h; y++) {
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GBitmapDataRowInfo info = gbitmap_get_data_row_info(fb, y+specularoffset.y);
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for(int x = specularoffset.x; x < donutspecularsize.w+specularoffset.x; x++) {
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if (x+specularoffset.x < info.max_x && x+specularoffset.x >= info.min_x) {
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uint16_t spec_index = x+(y*donutspecularsize.w)-specularoffset.x;
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// render specular highlights
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if (x >= specularbounds.origin.x && y >= specularbounds.origin.y && x < specularbounds.origin.x+specularbounds.size.w && y < specularbounds.origin.y+specularbounds.size.h) {
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uint16_t spec_index = (x-specularbounds.origin.x)+((y-specularbounds.origin.y)*specularbounds.size.w);
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uint8_t spec_octet = donutspecular[spec_index/8];
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bool spec_white = 0;
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if ((x+y) % 2 == 0) {
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spec_white = 0;
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// keep highlightless, creating dithering effect
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} else {
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switch (spec_index % 8) {
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case 0:
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spec_white = 0b10000000 & spec_octet;
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break;
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case 1:
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spec_white = 0b01000000 & spec_octet;
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break;
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case 2:
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spec_white = 0b00100000 & spec_octet;
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break;
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case 3:
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spec_white = 0b00010000 & spec_octet;
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break;
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case 4:
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spec_white = 0b00001000 & spec_octet;
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break;
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case 5:
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spec_white = 0b00000100 & spec_octet;
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break;
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case 6:
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spec_white = 0b00000010 & spec_octet;
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break;
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case 7:
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spec_white = 0b00000001 & spec_octet;
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break;
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}
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// fetch single bit out of bitfield
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spec_white = (0b10000000 >> spec_index%8) & spec_octet;
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}
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if (spec_white) {
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GColor highlight = GColorIcterine;
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memset(&info.data[x], highlight.argb, 1);
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}
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}
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@ -321,3 +257,4 @@ int main() {
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deinit();
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}
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