diff options
Diffstat (limited to 'applications/init/source/main.cpp')
| -rw-r--r-- | applications/init/source/main.cpp | 126 |
1 files changed, 65 insertions, 61 deletions
diff --git a/applications/init/source/main.cpp b/applications/init/source/main.cpp index c5df77c..cae17a2 100644 --- a/applications/init/source/main.cpp +++ b/applications/init/source/main.cpp @@ -1,23 +1,37 @@ #include <daguerre.hpp> -void alpha_overlay( - daguerre::hilbert_color &dest, const daguerre::rgb24 &src) { - if (src.r != 0xff || src.g != 0x00 || src.b != 0xff) - daguerre::default_overlay(dest, src); -} +static daguerre::hilbert_color transparent_color; -void invert(daguerre::rgb24 &dest, const daguerre::rgb24 &src) { - dest.r = 255 - src.r; - dest.g = 255 - src.g; - dest.b = 255 - src.b; +void alpha_overlay( + daguerre::hilbert_color &dest, const daguerre::hilbert_color &src) { + if (src != transparent_color) + dest = src; } int main(int, char **) { - auto framebuffer = daguerre::get_hilbert_framebuffer(); - - daguerre::image<daguerre::rgb24> burden; - daguerre::try_load_ppm("/assets/burden.ppm", burden); + daguerre::default_overlay( + transparent_color, (daguerre::rgb24){.r = 255, .g = 0, .b = 255}); + + auto raw_framebuffer = daguerre::get_hilbert_framebuffer(); + const unsigned fbw = raw_framebuffer.width; + const unsigned fbh = raw_framebuffer.height; + + daguerre::image<daguerre::rgb24> raw_burden; + daguerre::try_load_ppm("/assets/burden.ppm", raw_burden); + + daguerre::image<daguerre::rgb24> burden_stretch(fbw, fbh); + daguerre::image<daguerre::rgb24> burden_stretch_inverted(fbw, fbh); + for (unsigned y = 0; y < fbh; ++y) + for (unsigned x = 0; x < fbw; ++x) { + daguerre::rgb24 color = raw_burden.get( + x * raw_burden.width / fbw, y * raw_burden.height / fbh); + burden_stretch.set(x, y, color); + burden_stretch_inverted.set(x, y, { + .r = (uint8_t)(255 - color.r), + .g = (uint8_t)(255 - color.g), + .b = (uint8_t)(255 - color.b)}); + } daguerre::image<daguerre::rgb24> pointer; daguerre::try_load_ppm("/assets/pointer.ppm", pointer); @@ -25,54 +39,64 @@ int main(int, char **) { daguerre::fixed_bitmap_font<bool> terminus; daguerre::try_load_psf("/assets/terminus-bold-18x10.psf", terminus); - terminus.overlay_text<>(burden, 0, 0, "this is a test"); + terminus.overlay_text<>(burden_stretch, 0, 0, "this is a test"); + terminus.overlay_text<>(burden_stretch_inverted, 0, 0, "tset a si siht"); + + daguerre::image<daguerre::hilbert_color> + burden_stretch_hilbert(burden_stretch); + + daguerre::image<daguerre::hilbert_color> + burden_stretch_inverted_hilbert(burden_stretch_inverted); + + daguerre::image<daguerre::hilbert_color> pointer_hilbert(pointer); - int32_t width = burden.width < framebuffer.width - ? burden.width : framebuffer.width; - int32_t height = burden.height < framebuffer.height - ? burden.height : framebuffer.height; - unsigned x = (framebuffer.width - width) / 2; - unsigned y = (framebuffer.height - height) / 2; + daguerre::image<daguerre::hilbert_color> double_buffer( + fbw + pointer.width - 1, fbh + pointer.height - 1); - int32_t new_mouse_x = width / 2; - int32_t new_mouse_y = height / 2; - int32_t old_mouse_x = new_mouse_x; - int32_t old_mouse_y = new_mouse_y; + int32_t mouse_x = fbw / 2; + int32_t mouse_y = fbh / 2; bool was_left_mouse_down = false; - daguerre::overlay_region<>(framebuffer, x, y, burden, 0, 0, width, height); + bool should_draw = true; while (1) { + if (should_draw) { + double_buffer.overlay_from<>( + burden_stretch_hilbert, 0, 0, 0, 0, fbw, fbh); + double_buffer.overlay_from<daguerre::hilbert_color, alpha_overlay>( + pointer_hilbert, mouse_x, mouse_y, + 0, 0, pointer.width, pointer.height); + raw_framebuffer.overlay_from<>(double_buffer, 0, 0, 0, 0, fbw, fbh); + should_draw = false; + } + __euler_mouse_buttons mouse_buttons; int16_t mouse_change_x, mouse_change_y; uint32_t key_packet; __euler_input_packet_type packet_type = __euler_get_input_packet( mouse_buttons, mouse_change_x, mouse_change_y, key_packet); - bool anything_changed = false; bool should_invert = false; if (packet_type == __EULER_IPT_MOUSE) { if (mouse_change_x != 0 || mouse_change_y != 0) { - old_mouse_x = new_mouse_x; - old_mouse_y = new_mouse_y; - new_mouse_x += mouse_change_x; - new_mouse_y += mouse_change_y; + mouse_x += mouse_change_x; + mouse_y += mouse_change_y; - if (new_mouse_x < 0) - new_mouse_x = 0; - else if ((unsigned)new_mouse_x > width - pointer.width) - new_mouse_x = width - pointer.width; + if (mouse_x < 0) + mouse_x = 0; + else if ((unsigned)mouse_x >= fbw) + mouse_x = fbw - 1; - if (new_mouse_y < 0) - new_mouse_y = 0; - else if ((unsigned)new_mouse_y > height - pointer.height) - new_mouse_y = height - pointer.height; + if (mouse_y < 0) + mouse_y = 0; + else if ((unsigned)mouse_y >= fbh) + mouse_y = fbh - 1; - anything_changed = true; + should_draw = true; } @@ -88,28 +112,8 @@ int main(int, char **) { should_invert = true; if (should_invert) { - - //this works with the current implementation of overlay_region, but - //maybe it would be better to have a dedicated function for when the - //two regions are exactly the same, given the comment on overlay_region. - daguerre::overlay_region<daguerre::rgb24, daguerre::rgb24, invert>( - burden, 0, 0, burden, 0, 0, width, height); - - daguerre::overlay_region<>( - framebuffer, x, y, burden, 0, 0, width, height); - - anything_changed = true; - - } - - if (anything_changed) { - daguerre::overlay_region<>( - framebuffer, old_mouse_x + x, old_mouse_y + y, burden, - old_mouse_x, old_mouse_y, pointer.width, pointer.height); - daguerre::overlay_region< - daguerre::hilbert_color, daguerre::rgb24, alpha_overlay>( - framebuffer, new_mouse_x + x, new_mouse_y + y, - pointer, 0, 0, pointer.width, pointer.height); + daguerre::swap(burden_stretch_hilbert, burden_stretch_inverted_hilbert); + should_draw = true; } } |