diff options
Diffstat (limited to 'graphics.c')
| -rw-r--r-- | graphics.c | 35 |
1 files changed, 25 insertions, 10 deletions
@@ -589,8 +589,8 @@ b8 hit_line(vec2 vertices[2], f64 width, vec2 point) { tx /= tl; ty /= tl; } - tx *= width * .5; - ty *= width * .5; + tx *= width * 0.5; + ty *= width * 0.5; return hit_quad((vec2[4]) { { x0 - tx, y0 - ty }, @@ -890,7 +890,7 @@ static b8 quad_from_line_(vec2 *dst, vec2 vertices[2], f64 width) { if (tl < EPSILON) return 0; - f64 k = .5 / tl; + f64 k = 0.5 / tl; tx *= width * k; ty *= width * k; @@ -1365,7 +1365,7 @@ void draw_text_cursor_to_buffer(Pixel_Buffer dst, i32 font, vec4_f32 color, Box (Box) { .x = area.x + kx * cursor_x, .y = area.y + ky * cursor_y - ky * LCD_Height, - .width = kx * .5, + .width = kx * 0.5, .height = ky * (LCD_Height - 1), } ); @@ -1694,10 +1694,10 @@ static Box graphics_request_area_(Graphics_Request req) { static Graphics_Request_Norm_ normalize_graphics_request_(Graphics_Request req) { Box area = graphics_request_area_(req); - i64 x = (i64) floor(area.x - .5); - i64 y = (i64) floor(area.y - .5); - i64 w = (i64) ceil (area.x + area.width + .5) - x; - i64 h = (i64) ceil (area.y + area.height + .5) - y; + i64 x = (i64) floor(area.x - 0.5); + i64 y = (i64) floor(area.y - 0.5); + i64 w = (i64) ceil (area.x + area.width + 0.5) - x; + i64 h = (i64) ceil (area.y + area.height + 0.5) - y; return (Graphics_Request_Norm_) { .req = graphics_request_moved_(req, (vec2) { -x, -y }), @@ -2454,6 +2454,21 @@ TEST("rectangle aliasing") { (Box) { .x = 7.4, .y = 4.4, .width = 1.2, .height = 1.2, } ); + fill_rectangle_to_buffer( + (Pixel_Buffer) { .width = w, .height = h, .stride = w, .pixels = pixels }, + (vec4_f32) { 1.0f, 1.0f, 1.0f, 1.0f, }, + (Box) { .x = 7.44, .y = 6.51, .width = 1.07, .height = 1.991, } + ); + + // printf("\n"); + // for (i64 j = 0; j < h; ++j) { + // for (i64 i = 0; i < w; ++i) { + // printf(" %c", pixels[j * w + i].x > 0.5 ? 'x' : '.'); + // } + // printf("\n"); + // } + // printf("\n"); + b8 expect_bits[100] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, @@ -2462,8 +2477,8 @@ TEST("rectangle aliasing") { 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; |