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#include "nes/app/graphics/renderer.hh"
#include "nes/app/graphics/color.hh"
#include "nes/app/graphics/mask-tile.hh"
#include "nes/app/graphics/image-tile.hh"
#include "nes/app/graphics/image-view.hh"
#include "nes/common/display.hh"
namespace nes::app
{
renderer::renderer(display& display)
: display_{ display }
{
}
auto renderer::render_image_tile(unsigned const x, unsigned const y, image_tile const tile) -> void
{
if (x >= width || y >= height) { return; }
for (auto y_px = unsigned{ 0 }; y_px < 8; ++y_px)
{
for (auto x_px = unsigned{ 0 }; x_px < 8; ++x_px)
{
auto const c = tile.data[y_px * 8 + x_px];
if (c != color::transparent)
{
display_.set(8 * x + x_px, 8 * y + y_px, resolve_color(c));
}
}
}
}
auto renderer::render_mask_tile(unsigned const x, unsigned const y, mask_tile const tile, color const c) -> void
{
if (c == color::transparent) { return; }
if (x >= width || y >= height) { return; }
auto const resolved = resolve_color(c);
for (auto y_px = unsigned{ 0 }; y_px < 8; ++y_px)
{
auto row = tile.data[y_px];
for (auto x_px = unsigned{ 0 }; x_px < 8; ++x_px)
{
if (row & 0b10000000)
{
display_.set(8 * x + x_px, 8 * y + y_px, resolved);
}
row <<= 1;
}
}
}
auto renderer::render_image(unsigned const x, unsigned const y, image_view const image) -> void
{
for (auto y_img = unsigned{ 0 }; y_img < image.get_height(); ++y_img)
{
for (auto x_img = unsigned{ 0 }; x_img < image.get_width(); ++x_img)
{
render_image_tile(x + x_img, y + y_img, image.get(x, y));
}
}
}
auto renderer::render_rect(
unsigned const x, unsigned const y, unsigned const width, unsigned const height, color const c) -> void
{
if (c == color::transparent) { return; }
if (x >= width || y >= height) { return; }
auto const resolved = resolve_color(c);
auto const x_stop = std::min(x + width, renderer::width);
auto const y_stop = std::min(y + height, renderer::height);
for (auto y_px = unsigned{ y * 8 }; y_px < y_stop * 8; ++y_px)
{
for (auto x_px = unsigned{ x * 8 }; x_px < x_stop * 8; ++x_px)
{
display_.set(x_px, y_px, resolved);
}
}
}
auto renderer::render_fill(color const c) -> void
{
render_rect(0, 0, width, height, c);
}
auto renderer::resolve_color(color const c) const -> rgb
{
switch (c)
{
case color::transparent: break;
case color::background_primary: return rgb::from_hex(0x004058);
case color::background_secondary: return rgb::from_hex(0x002B3B);
case color::foreground_primary: return rgb::from_hex(0xFCFCFC);
case color::foreground_secondary: return rgb::from_hex(0x008888);
case color::accent_primary: return rgb::from_hex(0xE45C10);
case color::accent_secondary: return rgb::from_hex(0x881400);
case color::fixed_white: return rgb::from_hex(0xFCFCFC);
case color::fixed_gray: return rgb::from_hex(0xBCBCBC);
case color::fixed_black: return rgb::from_hex(0x000000);
}
return rgb::from_hex(0x000000);
}
} // namespace nes::app
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