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examples: fix the mandelbrot set example on Windows (#13251)

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This commit is contained in:
Wertzui123
2022-01-22 23:45:27 +01:00
committed by GitHub
parent fba9587323
commit 22c21e62a1
1 changed files with 6 additions and 5 deletions
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11
examples/gg/mandelbrot.v
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@@ -21,8 +21,8 @@ struct AppState {
mut: mut:
gg &gg.Context = 0 gg &gg.Context = 0
iidx int iidx int
pixels [pheight][pwidth]u32 pixels []u32 = []u32{len: pwidth * pheight}
npixels [pheight][pwidth]u32 // all drawing happens here, results are copied with vmemcpy to pixels at the end npixels []u32 = []u32{len: pwidth * pheight} // all drawing happens here, results are copied at the end
view ViewRect = ViewRect{-2.7610033817025625, 1.1788897130338223, -1.824584023871934, 2.1153096311072788} view ViewRect = ViewRect{-2.7610033817025625, 1.1788897130338223, -1.824584023871934, 2.1153096311072788}
ntasks int = runtime.nr_jobs() ntasks int = runtime.nr_jobs()
} }
@@ -46,7 +46,7 @@ fn (mut state AppState) update() {
threads << go state.recalc_lines(cview, start, start + sheight) threads << go state.recalc_lines(cview, start, start + sheight)
} }
threads.wait() threads.wait()
unsafe { vmemcpy(&state.pixels[0], &state.npixels[0], int(sizeof(state.pixels))) } state.pixels = state.npixels
println('$state.ntasks threads; $sw.elapsed().milliseconds() ms / frame') println('$state.ntasks threads; $sw.elapsed().milliseconds() ms / frame')
oview = cview oview = cview
} }
@@ -65,14 +65,14 @@ fn (mut state AppState) recalc_lines(cview ViewRect, ymin f64, ymax f64) {
break break
} }
} }
state.npixels[int(y_pixel)][int(x_pixel)] = u32(colors[iter % 8].abgr8()) state.npixels[int(y_pixel) * pwidth + int(x_pixel)] = u32(colors[iter % 8].abgr8())
} }
} }
} }
fn (mut state AppState) draw() { fn (mut state AppState) draw() {
mut istream_image := state.gg.get_cached_image_by_idx(state.iidx) mut istream_image := state.gg.get_cached_image_by_idx(state.iidx)
istream_image.update_pixel_data(&state.pixels) istream_image.update_pixel_data(&state.pixels[0])
size := gg.window_size() size := gg.window_size()
state.gg.draw_image(0, 0, size.width, size.height, istream_image) state.gg.draw_image(0, 0, size.width, size.height, istream_image)
} }
@@ -169,6 +169,7 @@ fn graphics_keydown(code gg.KeyCode, mod gg.Modifier, mut state AppState) {
} }
} }
[console]
fn main() { fn main() {
mut state := &AppState{} mut state := &AppState{}
state.gg = gg.new_context( state.gg = gg.new_context(