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8bit draw

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This commit is contained in:
Stepan Usatiuk
2025-10-11 20:03:00 +02:00
parent a4c2719077
commit 961453e28a
5 changed files with 49 additions and 22 deletions
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23
Firmware/sdk/backend_interface/include/cardboy/sdk/platform.hpp
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@@ -23,6 +23,9 @@ concept HasSendFrameImpl = requires(Impl& impl, bool flag) {
{ impl.sendFrame_impl(flag) };
};
template<typename Impl>
concept HasDrawBits8Impl = requires(Impl& impl, int x, int y, std::uint8_t bits) { impl.drawBits8_impl(x, y, bits); };
template<typename Impl>
concept HasFrameInFlightImpl = requires(const Impl& impl) {
{ impl.frameInFlight_impl() } -> std::convertible_to<bool>;
@@ -37,11 +40,19 @@ concept HasSleepMsImpl = requires(Impl& impl, std::uint32_t value) {
template<typename Impl>
class FramebufferFacade {
public:
[[nodiscard]] int width() const { return impl().width_impl(); }
[[nodiscard]] int height() const { return impl().height_impl(); }
[[nodiscard]] __attribute__((always_inline)) int width() const { return impl().width_impl(); }
[[nodiscard]] __attribute__((always_inline)) int height() const { return impl().height_impl(); }
__attribute__((always_inline)) void drawPixel(int x, int y, bool on) { impl().drawPixel_impl(x, y, on); }
__attribute__((always_inline)) void drawBits8(int x, int y, std::uint8_t bits) {
if constexpr (detail::HasDrawBits8Impl<Impl>) {
impl().drawBits8_impl(x, y, bits);
} else {
defaultDrawBits8(x, y, bits);
}
}
void clear(bool on) {
if constexpr (detail::HasClearImpl<Impl>) {
impl().clear_impl(on);
@@ -79,6 +90,14 @@ private:
for (int x = 0; x < width(); ++x)
drawPixel(x, y, on);
}
void defaultDrawBits8(int x, int y, std::uint8_t bits) {
for (int col = 0; col < 8; ++col) {
const std::uint8_t mask = static_cast<std::uint8_t>(1u << (7 - col));
const bool pixelOn = (bits & mask) != 0;
drawPixel(x + col, y, pixelOn);
}
}
};
template<typename Impl>

7
Firmware/sdk/core/include/cardboy/gfx/font16x8.hpp
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@@ -41,6 +41,13 @@ template<typename Framebuffer>
inline void drawGlyph(Framebuffer& fb, int x, int y, char ch, int scale = 1, bool on = true,
Rotation rotation = Rotation::None) {
const auto& rows = glyphBitmap(ch);
if (rotation == Rotation::None && scale == 1 && on && ((x % 8) == 0)) {
for (int row = 0; row < kGlyphHeight; ++row) {
const uint8_t rowBits = rows[row];
fb.drawBits8(x, y + row, rowBits);
}
return;
}
for (int row = 0; row < kGlyphHeight; ++row) {
const uint8_t rowBits = rows[row];
for (int col = 0; col < kGlyphWidth; ++col) {