8d4bbf284d
Implements StarDict-based dictionary lookup from the reader menu, adapted from upstream PR #857 with /.dictionary/ folder path, std::vector compatibility (PR #802), HTML definition rendering, orientation-aware button hints, side button hints with CCW text rotation, sparse index caching to SD card, pronunciation line filtering, and reorganized reader menu with bookmark stubs. Co-authored-by: Cursor <cursoragent@cursor.com>
1191 lines
40 KiB
C++
1191 lines
40 KiB
C++
#include "GfxRenderer.h"
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#include <Utf8.h>
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void GfxRenderer::begin() {
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frameBuffer = display.getFrameBuffer();
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if (!frameBuffer) {
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Serial.printf("[%lu] [GFX] !! No framebuffer\n", millis());
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assert(false);
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}
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}
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void GfxRenderer::insertFont(const int fontId, EpdFontFamily font) { fontMap.insert({fontId, font}); }
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// Translate logical (x,y) coordinates to physical panel coordinates based on current orientation
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// This should always be inlined for better performance
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static inline void rotateCoordinates(const GfxRenderer::Orientation orientation, const int x, const int y, int* phyX,
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int* phyY) {
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switch (orientation) {
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case GfxRenderer::Portrait: {
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// Logical portrait (480x800) → panel (800x480)
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// Rotation: 90 degrees clockwise
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*phyX = y;
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*phyY = HalDisplay::DISPLAY_HEIGHT - 1 - x;
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break;
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}
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case GfxRenderer::LandscapeClockwise: {
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// Logical landscape (800x480) rotated 180 degrees (swap top/bottom and left/right)
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*phyX = HalDisplay::DISPLAY_WIDTH - 1 - x;
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*phyY = HalDisplay::DISPLAY_HEIGHT - 1 - y;
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break;
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}
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case GfxRenderer::PortraitInverted: {
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// Logical portrait (480x800) → panel (800x480)
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// Rotation: 90 degrees counter-clockwise
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*phyX = HalDisplay::DISPLAY_WIDTH - 1 - y;
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*phyY = x;
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break;
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}
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case GfxRenderer::LandscapeCounterClockwise: {
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// Logical landscape (800x480) aligned with panel orientation
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*phyX = x;
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*phyY = y;
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break;
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}
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}
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}
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// IMPORTANT: This function is in critical rendering path and is called for every pixel. Please keep it as simple and
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// efficient as possible.
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void GfxRenderer::drawPixel(const int x, const int y, const bool state) const {
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int phyX = 0;
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int phyY = 0;
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// Note: this call should be inlined for better performance
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rotateCoordinates(orientation, x, y, &phyX, &phyY);
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// Bounds checking against physical panel dimensions
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if (phyX < 0 || phyX >= HalDisplay::DISPLAY_WIDTH || phyY < 0 || phyY >= HalDisplay::DISPLAY_HEIGHT) {
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Serial.printf("[%lu] [GFX] !! Outside range (%d, %d) -> (%d, %d)\n", millis(), x, y, phyX, phyY);
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return;
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}
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// Calculate byte position and bit position
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const uint16_t byteIndex = phyY * HalDisplay::DISPLAY_WIDTH_BYTES + (phyX / 8);
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const uint8_t bitPosition = 7 - (phyX % 8); // MSB first
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if (state) {
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frameBuffer[byteIndex] &= ~(1 << bitPosition); // Clear bit
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} else {
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frameBuffer[byteIndex] |= 1 << bitPosition; // Set bit
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}
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}
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void GfxRenderer::drawPixelGray(const int x, const int y, const uint8_t val2bit) const {
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if (renderMode == BW && val2bit < 3) {
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drawPixel(x, y);
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} else if (renderMode == GRAYSCALE_MSB && (val2bit == 1 || val2bit == 2)) {
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drawPixel(x, y, false);
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} else if (renderMode == GRAYSCALE_LSB && val2bit == 1) {
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drawPixel(x, y, false);
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}
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}
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int GfxRenderer::getTextWidth(const int fontId, const char* text, const EpdFontFamily::Style style) const {
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if (fontMap.count(fontId) == 0) {
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Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
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return 0;
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}
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int w = 0, h = 0;
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fontMap.at(fontId).getTextDimensions(text, &w, &h, style);
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return w;
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}
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void GfxRenderer::drawCenteredText(const int fontId, const int y, const char* text, const bool black,
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const EpdFontFamily::Style style) const {
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const int x = (getScreenWidth() - getTextWidth(fontId, text, style)) / 2;
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drawText(fontId, x, y, text, black, style);
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}
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void GfxRenderer::drawText(const int fontId, const int x, const int y, const char* text, const bool black,
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const EpdFontFamily::Style style) const {
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const int yPos = y + getFontAscenderSize(fontId);
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int xpos = x;
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// cannot draw a NULL / empty string
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if (text == nullptr || *text == '\0') {
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return;
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}
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if (fontMap.count(fontId) == 0) {
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Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
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return;
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}
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const auto font = fontMap.at(fontId);
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// no printable characters
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if (!font.hasPrintableChars(text, style)) {
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return;
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}
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uint32_t cp;
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while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&text)))) {
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renderChar(font, cp, &xpos, &yPos, black, style);
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}
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}
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void GfxRenderer::drawLine(int x1, int y1, int x2, int y2, const bool state) const {
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if (x1 == x2) {
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if (y2 < y1) {
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std::swap(y1, y2);
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}
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for (int y = y1; y <= y2; y++) {
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drawPixel(x1, y, state);
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}
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} else if (y1 == y2) {
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if (x2 < x1) {
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std::swap(x1, x2);
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}
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for (int x = x1; x <= x2; x++) {
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drawPixel(x, y1, state);
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}
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} else {
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// TODO: Implement
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Serial.printf("[%lu] [GFX] Line drawing not supported\n", millis());
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}
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}
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void GfxRenderer::drawLine(int x1, int y1, int x2, int y2, const int lineWidth, const bool state) const {
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for (int i = 0; i < lineWidth; i++) {
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drawLine(x1, y1 + i, x2, y2 + i, state);
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}
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}
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void GfxRenderer::drawRect(const int x, const int y, const int width, const int height, const bool state) const {
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drawLine(x, y, x + width - 1, y, state);
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drawLine(x + width - 1, y, x + width - 1, y + height - 1, state);
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drawLine(x + width - 1, y + height - 1, x, y + height - 1, state);
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drawLine(x, y, x, y + height - 1, state);
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}
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// Border is inside the rectangle
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void GfxRenderer::drawRect(const int x, const int y, const int width, const int height, const int lineWidth,
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const bool state) const {
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for (int i = 0; i < lineWidth; i++) {
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drawLine(x + i, y + i, x + width - i, y + i, state);
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drawLine(x + width - i, y + i, x + width - i, y + height - i, state);
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drawLine(x + width - i, y + height - i, x + i, y + height - i, state);
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drawLine(x + i, y + height - i, x + i, y + i, state);
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}
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}
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void GfxRenderer::drawArc(const int maxRadius, const int cx, const int cy, const int xDir, const int yDir,
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const int lineWidth, const bool state) const {
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const int stroke = std::min(lineWidth, maxRadius);
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const int innerRadius = std::max(maxRadius - stroke, 0);
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const int outerRadiusSq = maxRadius * maxRadius;
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const int innerRadiusSq = innerRadius * innerRadius;
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for (int dy = 0; dy <= maxRadius; ++dy) {
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for (int dx = 0; dx <= maxRadius; ++dx) {
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const int distSq = dx * dx + dy * dy;
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if (distSq > outerRadiusSq || distSq < innerRadiusSq) {
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continue;
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}
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const int px = cx + xDir * dx;
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const int py = cy + yDir * dy;
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drawPixel(px, py, state);
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}
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}
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};
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// Border is inside the rectangle, rounded corners
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void GfxRenderer::drawRoundedRect(const int x, const int y, const int width, const int height, const int lineWidth,
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const int cornerRadius, bool state) const {
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drawRoundedRect(x, y, width, height, lineWidth, cornerRadius, true, true, true, true, state);
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}
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// Border is inside the rectangle, rounded corners
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void GfxRenderer::drawRoundedRect(const int x, const int y, const int width, const int height, const int lineWidth,
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const int cornerRadius, bool roundTopLeft, bool roundTopRight, bool roundBottomLeft,
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bool roundBottomRight, bool state) const {
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if (lineWidth <= 0 || width <= 0 || height <= 0) {
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return;
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}
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const int maxRadius = std::min({cornerRadius, width / 2, height / 2});
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if (maxRadius <= 0) {
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drawRect(x, y, width, height, lineWidth, state);
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return;
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}
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const int stroke = std::min(lineWidth, maxRadius);
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const int right = x + width - 1;
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const int bottom = y + height - 1;
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const int horizontalWidth = width - 2 * maxRadius;
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if (horizontalWidth > 0) {
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if (roundTopLeft || roundTopRight) {
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fillRect(x + maxRadius, y, horizontalWidth, stroke, state);
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}
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if (roundBottomLeft || roundBottomRight) {
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fillRect(x + maxRadius, bottom - stroke + 1, horizontalWidth, stroke, state);
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}
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}
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const int verticalHeight = height - 2 * maxRadius;
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if (verticalHeight > 0) {
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if (roundTopLeft || roundBottomLeft) {
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fillRect(x, y + maxRadius, stroke, verticalHeight, state);
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}
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if (roundTopRight || roundBottomRight) {
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fillRect(right - stroke + 1, y + maxRadius, stroke, verticalHeight, state);
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}
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}
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if (roundTopLeft) {
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drawArc(maxRadius, x + maxRadius, y + maxRadius, -1, -1, lineWidth, state);
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}
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if (roundTopRight) {
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drawArc(maxRadius, right - maxRadius, y + maxRadius, 1, -1, lineWidth, state);
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}
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if (roundBottomRight) {
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drawArc(maxRadius, right - maxRadius, bottom - maxRadius, 1, 1, lineWidth, state);
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}
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if (roundBottomLeft) {
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drawArc(maxRadius, x + maxRadius, bottom - maxRadius, -1, 1, lineWidth, state);
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}
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}
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void GfxRenderer::fillRect(const int x, const int y, const int width, const int height, const bool state) const {
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for (int fillY = y; fillY < y + height; fillY++) {
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drawLine(x, fillY, x + width - 1, fillY, state);
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}
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}
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// NOTE: Those are in critical path, and need to be templated to avoid runtime checks for every pixel.
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// Any branching must be done outside the loops to avoid performance degradation.
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template <>
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void GfxRenderer::drawPixelDither<Color::Clear>(const int x, const int y) const {
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// Do nothing
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}
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template <>
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void GfxRenderer::drawPixelDither<Color::Black>(const int x, const int y) const {
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drawPixel(x, y, true);
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}
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template <>
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void GfxRenderer::drawPixelDither<Color::White>(const int x, const int y) const {
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drawPixel(x, y, false);
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}
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template <>
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void GfxRenderer::drawPixelDither<Color::LightGray>(const int x, const int y) const {
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drawPixel(x, y, x % 2 == 0 && y % 2 == 0);
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}
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template <>
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void GfxRenderer::drawPixelDither<Color::DarkGray>(const int x, const int y) const {
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drawPixel(x, y, (x + y) % 2 == 0); // TODO: maybe find a better pattern?
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}
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void GfxRenderer::fillRectDither(const int x, const int y, const int width, const int height, Color color) const {
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if (color == Color::Clear) {
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} else if (color == Color::Black) {
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fillRect(x, y, width, height, true);
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} else if (color == Color::White) {
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fillRect(x, y, width, height, false);
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} else if (color == Color::LightGray) {
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for (int fillY = y; fillY < y + height; fillY++) {
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for (int fillX = x; fillX < x + width; fillX++) {
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drawPixelDither<Color::LightGray>(fillX, fillY);
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}
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}
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} else if (color == Color::DarkGray) {
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for (int fillY = y; fillY < y + height; fillY++) {
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for (int fillX = x; fillX < x + width; fillX++) {
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drawPixelDither<Color::DarkGray>(fillX, fillY);
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}
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}
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}
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}
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template <Color color>
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void GfxRenderer::fillArc(const int maxRadius, const int cx, const int cy, const int xDir, const int yDir) const {
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const int radiusSq = maxRadius * maxRadius;
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for (int dy = 0; dy <= maxRadius; ++dy) {
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for (int dx = 0; dx <= maxRadius; ++dx) {
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const int distSq = dx * dx + dy * dy;
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const int px = cx + xDir * dx;
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const int py = cy + yDir * dy;
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if (distSq <= radiusSq) {
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drawPixelDither<color>(px, py);
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}
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}
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}
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}
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void GfxRenderer::fillRoundedRect(const int x, const int y, const int width, const int height, const int cornerRadius,
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const Color color) const {
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fillRoundedRect(x, y, width, height, cornerRadius, true, true, true, true, color);
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}
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void GfxRenderer::fillRoundedRect(const int x, const int y, const int width, const int height, const int cornerRadius,
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bool roundTopLeft, bool roundTopRight, bool roundBottomLeft, bool roundBottomRight,
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const Color color) const {
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if (width <= 0 || height <= 0) {
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return;
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}
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const int maxRadius = std::min({cornerRadius, width / 2, height / 2});
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if (maxRadius <= 0) {
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fillRectDither(x, y, width, height, color);
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return;
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}
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const int horizontalWidth = width - 2 * maxRadius;
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if (horizontalWidth > 0) {
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fillRectDither(x + maxRadius + 1, y, horizontalWidth - 2, height, color);
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}
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const int verticalHeight = height - 2 * maxRadius - 2;
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if (verticalHeight > 0) {
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fillRectDither(x, y + maxRadius + 1, maxRadius + 1, verticalHeight, color);
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fillRectDither(x + width - maxRadius - 1, y + maxRadius + 1, maxRadius + 1, verticalHeight, color);
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}
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auto fillArcTemplated = [this](int maxRadius, int cx, int cy, int xDir, int yDir, Color color) {
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switch (color) {
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case Color::Clear:
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break;
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case Color::Black:
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fillArc<Color::Black>(maxRadius, cx, cy, xDir, yDir);
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break;
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case Color::White:
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fillArc<Color::White>(maxRadius, cx, cy, xDir, yDir);
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break;
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case Color::LightGray:
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fillArc<Color::LightGray>(maxRadius, cx, cy, xDir, yDir);
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break;
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case Color::DarkGray:
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fillArc<Color::DarkGray>(maxRadius, cx, cy, xDir, yDir);
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break;
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}
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};
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if (roundTopLeft) {
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fillArcTemplated(maxRadius, x + maxRadius, y + maxRadius, -1, -1, color);
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} else {
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fillRectDither(x, y, maxRadius + 1, maxRadius + 1, color);
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}
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if (roundTopRight) {
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fillArcTemplated(maxRadius, x + width - maxRadius - 1, y + maxRadius, 1, -1, color);
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} else {
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fillRectDither(x + width - maxRadius - 1, y, maxRadius + 1, maxRadius + 1, color);
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}
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if (roundBottomRight) {
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fillArcTemplated(maxRadius, x + width - maxRadius - 1, y + height - maxRadius - 1, 1, 1, color);
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} else {
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fillRectDither(x + width - maxRadius - 1, y + height - maxRadius - 1, maxRadius + 1, maxRadius + 1, color);
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}
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if (roundBottomLeft) {
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fillArcTemplated(maxRadius, x + maxRadius, y + height - maxRadius - 1, -1, 1, color);
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} else {
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fillRectDither(x, y + height - maxRadius - 1, maxRadius + 1, maxRadius + 1, color);
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}
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}
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void GfxRenderer::drawImage(const uint8_t bitmap[], const int x, const int y, const int width, const int height) const {
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int rotatedX = 0;
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int rotatedY = 0;
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rotateCoordinates(orientation, x, y, &rotatedX, &rotatedY);
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// Rotate origin corner
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switch (orientation) {
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case Portrait:
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rotatedY = rotatedY - height;
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break;
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case PortraitInverted:
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rotatedX = rotatedX - width;
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break;
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case LandscapeClockwise:
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rotatedY = rotatedY - height;
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rotatedX = rotatedX - width;
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break;
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case LandscapeCounterClockwise:
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break;
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}
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// TODO: Rotate bits
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display.drawImage(bitmap, rotatedX, rotatedY, width, height);
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}
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void GfxRenderer::drawIcon(const uint8_t bitmap[], const int x, const int y, const int width, const int height) const {
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display.drawImage(bitmap, y, getScreenWidth() - width - x, height, width);
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}
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void GfxRenderer::drawBitmap(const Bitmap& bitmap, const int x, const int y, const int maxWidth, const int maxHeight,
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const float cropX, const float cropY) const {
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// For 1-bit bitmaps, use optimized 1-bit rendering path (no crop support for 1-bit)
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if (bitmap.is1Bit() && cropX == 0.0f && cropY == 0.0f) {
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drawBitmap1Bit(bitmap, x, y, maxWidth, maxHeight);
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return;
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}
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float scale = 1.0f;
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bool isScaled = false;
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int cropPixX = std::floor(bitmap.getWidth() * cropX / 2.0f);
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int cropPixY = std::floor(bitmap.getHeight() * cropY / 2.0f);
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Serial.printf("[%lu] [GFX] Cropping %dx%d by %dx%d pix, is %s\n", millis(), bitmap.getWidth(), bitmap.getHeight(),
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cropPixX, cropPixY, bitmap.isTopDown() ? "top-down" : "bottom-up");
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const float effectiveWidth = (1.0f - cropX) * bitmap.getWidth();
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const float effectiveHeight = (1.0f - cropY) * bitmap.getHeight();
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// Calculate scale factor: supports both downscaling and upscaling when both constraints are provided
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if (maxWidth > 0 && maxHeight > 0) {
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const float scaleX = static_cast<float>(maxWidth) / effectiveWidth;
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const float scaleY = static_cast<float>(maxHeight) / effectiveHeight;
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scale = std::min(scaleX, scaleY);
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isScaled = (scale < 0.999f || scale > 1.001f);
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} else if (maxWidth > 0 && effectiveWidth > static_cast<float>(maxWidth)) {
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scale = static_cast<float>(maxWidth) / effectiveWidth;
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isScaled = true;
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} else if (maxHeight > 0 && effectiveHeight > static_cast<float>(maxHeight)) {
|
|
scale = static_cast<float>(maxHeight) / effectiveHeight;
|
|
isScaled = true;
|
|
}
|
|
Serial.printf("[%lu] [GFX] Scaling by %f - %s\n", millis(), scale, isScaled ? "scaled" : "not scaled");
|
|
|
|
// Calculate output row size (2 bits per pixel, packed into bytes)
|
|
// IMPORTANT: Use int, not uint8_t, to avoid overflow for images > 1020 pixels wide
|
|
const int outputRowSize = (bitmap.getWidth() + 3) / 4;
|
|
auto* outputRow = static_cast<uint8_t*>(malloc(outputRowSize));
|
|
auto* rowBytes = static_cast<uint8_t*>(malloc(bitmap.getRowBytes()));
|
|
|
|
if (!outputRow || !rowBytes) {
|
|
Serial.printf("[%lu] [GFX] !! Failed to allocate BMP row buffers\n", millis());
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
return;
|
|
}
|
|
|
|
for (int bmpY = 0; bmpY < (bitmap.getHeight() - cropPixY); bmpY++) {
|
|
// The BMP's (0, 0) is the bottom-left corner (if the height is positive, top-left if negative).
|
|
// Screen's (0, 0) is the top-left corner.
|
|
const int logicalY = -cropPixY + (bitmap.isTopDown() ? bmpY : bitmap.getHeight() - 1 - bmpY);
|
|
int screenYStart, screenYEnd;
|
|
if (isScaled) {
|
|
screenYStart = static_cast<int>(std::floor(logicalY * scale)) + y;
|
|
screenYEnd = static_cast<int>(std::floor((logicalY + 1) * scale)) + y;
|
|
} else {
|
|
screenYStart = logicalY + y;
|
|
screenYEnd = screenYStart + 1;
|
|
}
|
|
|
|
if (screenYStart >= getScreenHeight()) {
|
|
break;
|
|
}
|
|
|
|
if (bitmap.readNextRow(outputRow, rowBytes) != BmpReaderError::Ok) {
|
|
Serial.printf("[%lu] [GFX] Failed to read row %d from bitmap\n", millis(), bmpY);
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
return;
|
|
}
|
|
|
|
if (screenYEnd <= 0) {
|
|
continue;
|
|
}
|
|
|
|
if (bmpY < cropPixY) {
|
|
// Skip the row if it's outside the crop area
|
|
continue;
|
|
}
|
|
|
|
const int syStart = std::max(screenYStart, 0);
|
|
const int syEnd = std::min(screenYEnd, getScreenHeight());
|
|
|
|
for (int bmpX = cropPixX; bmpX < bitmap.getWidth() - cropPixX; bmpX++) {
|
|
const int outX = bmpX - cropPixX;
|
|
int screenXStart, screenXEnd;
|
|
if (isScaled) {
|
|
screenXStart = static_cast<int>(std::floor(outX * scale)) + x;
|
|
screenXEnd = static_cast<int>(std::floor((outX + 1) * scale)) + x;
|
|
} else {
|
|
screenXStart = outX + x;
|
|
screenXEnd = screenXStart + 1;
|
|
}
|
|
|
|
if (screenXStart >= getScreenWidth()) {
|
|
break;
|
|
}
|
|
if (screenXEnd <= 0) {
|
|
continue;
|
|
}
|
|
|
|
const uint8_t val = outputRow[bmpX / 4] >> (6 - ((bmpX * 2) % 8)) & 0x3;
|
|
|
|
const int sxStart = std::max(screenXStart, 0);
|
|
const int sxEnd = std::min(screenXEnd, getScreenWidth());
|
|
|
|
for (int sy = syStart; sy < syEnd; sy++) {
|
|
for (int sx = sxStart; sx < sxEnd; sx++) {
|
|
if (renderMode == BW && val < 3) {
|
|
drawPixel(sx, sy);
|
|
} else if (renderMode == GRAYSCALE_MSB && (val == 1 || val == 2)) {
|
|
drawPixel(sx, sy, false);
|
|
} else if (renderMode == GRAYSCALE_LSB && val == 1) {
|
|
drawPixel(sx, sy, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
}
|
|
|
|
void GfxRenderer::drawBitmap1Bit(const Bitmap& bitmap, const int x, const int y, const int maxWidth,
|
|
const int maxHeight) const {
|
|
float scale = 1.0f;
|
|
bool isScaled = false;
|
|
// Calculate scale factor: supports both downscaling and upscaling when both constraints are provided
|
|
if (maxWidth > 0 && maxHeight > 0) {
|
|
const float scaleX = static_cast<float>(maxWidth) / static_cast<float>(bitmap.getWidth());
|
|
const float scaleY = static_cast<float>(maxHeight) / static_cast<float>(bitmap.getHeight());
|
|
scale = std::min(scaleX, scaleY);
|
|
isScaled = (scale < 0.999f || scale > 1.001f);
|
|
} else if (maxWidth > 0 && bitmap.getWidth() > maxWidth) {
|
|
scale = static_cast<float>(maxWidth) / static_cast<float>(bitmap.getWidth());
|
|
isScaled = true;
|
|
} else if (maxHeight > 0 && bitmap.getHeight() > maxHeight) {
|
|
scale = std::min(scale, static_cast<float>(maxHeight) / static_cast<float>(bitmap.getHeight()));
|
|
isScaled = true;
|
|
}
|
|
|
|
// For 1-bit BMP, output is still 2-bit packed (for consistency with readNextRow)
|
|
const int outputRowSize = (bitmap.getWidth() + 3) / 4;
|
|
auto* outputRow = static_cast<uint8_t*>(malloc(outputRowSize));
|
|
auto* rowBytes = static_cast<uint8_t*>(malloc(bitmap.getRowBytes()));
|
|
|
|
if (!outputRow || !rowBytes) {
|
|
Serial.printf("[%lu] [GFX] !! Failed to allocate 1-bit BMP row buffers\n", millis());
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
return;
|
|
}
|
|
|
|
for (int bmpY = 0; bmpY < bitmap.getHeight(); bmpY++) {
|
|
// Read rows sequentially using readNextRow
|
|
if (bitmap.readNextRow(outputRow, rowBytes) != BmpReaderError::Ok) {
|
|
Serial.printf("[%lu] [GFX] Failed to read row %d from 1-bit bitmap\n", millis(), bmpY);
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
return;
|
|
}
|
|
|
|
// Calculate screen Y based on whether BMP is top-down or bottom-up
|
|
const int bmpYOffset = bitmap.isTopDown() ? bmpY : bitmap.getHeight() - 1 - bmpY;
|
|
int screenYStart, screenYEnd;
|
|
if (isScaled) {
|
|
screenYStart = static_cast<int>(std::floor(bmpYOffset * scale)) + y;
|
|
screenYEnd = static_cast<int>(std::floor((bmpYOffset + 1) * scale)) + y;
|
|
} else {
|
|
screenYStart = bmpYOffset + y;
|
|
screenYEnd = screenYStart + 1;
|
|
}
|
|
if (screenYStart >= getScreenHeight()) {
|
|
continue; // Continue reading to keep row counter in sync
|
|
}
|
|
if (screenYEnd <= 0) {
|
|
continue;
|
|
}
|
|
|
|
const int syStart = std::max(screenYStart, 0);
|
|
const int syEnd = std::min(screenYEnd, getScreenHeight());
|
|
|
|
for (int bmpX = 0; bmpX < bitmap.getWidth(); bmpX++) {
|
|
int screenXStart, screenXEnd;
|
|
if (isScaled) {
|
|
screenXStart = static_cast<int>(std::floor(bmpX * scale)) + x;
|
|
screenXEnd = static_cast<int>(std::floor((bmpX + 1) * scale)) + x;
|
|
} else {
|
|
screenXStart = bmpX + x;
|
|
screenXEnd = screenXStart + 1;
|
|
}
|
|
if (screenXStart >= getScreenWidth()) {
|
|
break;
|
|
}
|
|
if (screenXEnd <= 0) {
|
|
continue;
|
|
}
|
|
|
|
// Get 2-bit value (result of readNextRow quantization)
|
|
const uint8_t val = outputRow[bmpX / 4] >> (6 - ((bmpX * 2) % 8)) & 0x3;
|
|
|
|
// For 1-bit source: 0 or 1 -> map to black (0,1,2) or white (3)
|
|
// val < 3 means black pixel (draw it)
|
|
if (val < 3) {
|
|
const int sxStart = std::max(screenXStart, 0);
|
|
const int sxEnd = std::min(screenXEnd, getScreenWidth());
|
|
for (int sy = syStart; sy < syEnd; sy++) {
|
|
for (int sx = sxStart; sx < sxEnd; sx++) {
|
|
drawPixel(sx, sy, true);
|
|
}
|
|
}
|
|
}
|
|
// White pixels (val == 3) are not drawn (leave background)
|
|
}
|
|
}
|
|
|
|
free(outputRow);
|
|
free(rowBytes);
|
|
}
|
|
|
|
void GfxRenderer::fillPolygon(const int* xPoints, const int* yPoints, int numPoints, bool state) const {
|
|
if (numPoints < 3) return;
|
|
|
|
// Find bounding box
|
|
int minY = yPoints[0], maxY = yPoints[0];
|
|
for (int i = 1; i < numPoints; i++) {
|
|
if (yPoints[i] < minY) minY = yPoints[i];
|
|
if (yPoints[i] > maxY) maxY = yPoints[i];
|
|
}
|
|
|
|
// Clip to screen
|
|
if (minY < 0) minY = 0;
|
|
if (maxY >= getScreenHeight()) maxY = getScreenHeight() - 1;
|
|
|
|
// Allocate node buffer for scanline algorithm
|
|
auto* nodeX = static_cast<int*>(malloc(numPoints * sizeof(int)));
|
|
if (!nodeX) {
|
|
Serial.printf("[%lu] [GFX] !! Failed to allocate polygon node buffer\n", millis());
|
|
return;
|
|
}
|
|
|
|
// Scanline fill algorithm
|
|
for (int scanY = minY; scanY <= maxY; scanY++) {
|
|
int nodes = 0;
|
|
|
|
// Find all intersection points with edges
|
|
int j = numPoints - 1;
|
|
for (int i = 0; i < numPoints; i++) {
|
|
if ((yPoints[i] < scanY && yPoints[j] >= scanY) || (yPoints[j] < scanY && yPoints[i] >= scanY)) {
|
|
// Calculate X intersection using fixed-point to avoid float
|
|
int dy = yPoints[j] - yPoints[i];
|
|
if (dy != 0) {
|
|
nodeX[nodes++] = xPoints[i] + (scanY - yPoints[i]) * (xPoints[j] - xPoints[i]) / dy;
|
|
}
|
|
}
|
|
j = i;
|
|
}
|
|
|
|
// Sort nodes by X (simple bubble sort, numPoints is small)
|
|
for (int i = 0; i < nodes - 1; i++) {
|
|
for (int k = i + 1; k < nodes; k++) {
|
|
if (nodeX[i] > nodeX[k]) {
|
|
int temp = nodeX[i];
|
|
nodeX[i] = nodeX[k];
|
|
nodeX[k] = temp;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fill between pairs of nodes
|
|
for (int i = 0; i < nodes - 1; i += 2) {
|
|
int startX = nodeX[i];
|
|
int endX = nodeX[i + 1];
|
|
|
|
// Clip to screen
|
|
if (startX < 0) startX = 0;
|
|
if (endX >= getScreenWidth()) endX = getScreenWidth() - 1;
|
|
|
|
// Draw horizontal line
|
|
for (int x = startX; x <= endX; x++) {
|
|
drawPixel(x, scanY, state);
|
|
}
|
|
}
|
|
}
|
|
|
|
free(nodeX);
|
|
}
|
|
|
|
// For performance measurement (using static to allow "const" methods)
|
|
static unsigned long start_ms = 0;
|
|
|
|
void GfxRenderer::clearScreen(const uint8_t color) const {
|
|
start_ms = millis();
|
|
display.clearScreen(color);
|
|
}
|
|
|
|
void GfxRenderer::invertScreen() const {
|
|
for (int i = 0; i < HalDisplay::BUFFER_SIZE; i++) {
|
|
frameBuffer[i] = ~frameBuffer[i];
|
|
}
|
|
}
|
|
|
|
void GfxRenderer::displayBuffer(const HalDisplay::RefreshMode refreshMode) const {
|
|
auto elapsed = millis() - start_ms;
|
|
Serial.printf("[%lu] [GFX] Time = %lu ms from clearScreen to displayBuffer\n", millis(), elapsed);
|
|
display.displayBuffer(refreshMode, fadingFix);
|
|
}
|
|
|
|
std::string GfxRenderer::truncatedText(const int fontId, const char* text, const int maxWidth,
|
|
const EpdFontFamily::Style style) const {
|
|
if (!text || maxWidth <= 0) return "";
|
|
|
|
std::string item = text;
|
|
const char* ellipsis = "...";
|
|
int textWidth = getTextWidth(fontId, item.c_str(), style);
|
|
if (textWidth <= maxWidth) {
|
|
// Text fits, return as is
|
|
return item;
|
|
}
|
|
|
|
while (!item.empty() && getTextWidth(fontId, (item + ellipsis).c_str(), style) >= maxWidth) {
|
|
utf8RemoveLastChar(item);
|
|
}
|
|
|
|
return item.empty() ? ellipsis : item + ellipsis;
|
|
}
|
|
|
|
// Note: Internal driver treats screen in command orientation; this library exposes a logical orientation
|
|
int GfxRenderer::getScreenWidth() const {
|
|
switch (orientation) {
|
|
case Portrait:
|
|
case PortraitInverted:
|
|
// 480px wide in portrait logical coordinates
|
|
return HalDisplay::DISPLAY_HEIGHT;
|
|
case LandscapeClockwise:
|
|
case LandscapeCounterClockwise:
|
|
// 800px wide in landscape logical coordinates
|
|
return HalDisplay::DISPLAY_WIDTH;
|
|
}
|
|
return HalDisplay::DISPLAY_HEIGHT;
|
|
}
|
|
|
|
int GfxRenderer::getScreenHeight() const {
|
|
switch (orientation) {
|
|
case Portrait:
|
|
case PortraitInverted:
|
|
// 800px tall in portrait logical coordinates
|
|
return HalDisplay::DISPLAY_WIDTH;
|
|
case LandscapeClockwise:
|
|
case LandscapeCounterClockwise:
|
|
// 480px tall in landscape logical coordinates
|
|
return HalDisplay::DISPLAY_HEIGHT;
|
|
}
|
|
return HalDisplay::DISPLAY_WIDTH;
|
|
}
|
|
|
|
int GfxRenderer::getSpaceWidth(const int fontId) const {
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return 0;
|
|
}
|
|
|
|
return fontMap.at(fontId).getGlyph(' ', EpdFontFamily::REGULAR)->advanceX;
|
|
}
|
|
|
|
int GfxRenderer::getTextAdvanceX(const int fontId, const char* text) const {
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return 0;
|
|
}
|
|
|
|
uint32_t cp;
|
|
int width = 0;
|
|
while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&text)))) {
|
|
width += fontMap.at(fontId).getGlyph(cp, EpdFontFamily::REGULAR)->advanceX;
|
|
}
|
|
return width;
|
|
}
|
|
|
|
int GfxRenderer::getFontAscenderSize(const int fontId) const {
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return 0;
|
|
}
|
|
|
|
return fontMap.at(fontId).getData(EpdFontFamily::REGULAR)->ascender;
|
|
}
|
|
|
|
int GfxRenderer::getLineHeight(const int fontId) const {
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return 0;
|
|
}
|
|
|
|
return fontMap.at(fontId).getData(EpdFontFamily::REGULAR)->advanceY;
|
|
}
|
|
|
|
int GfxRenderer::getTextHeight(const int fontId) const {
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return 0;
|
|
}
|
|
return fontMap.at(fontId).getData(EpdFontFamily::REGULAR)->ascender;
|
|
}
|
|
|
|
void GfxRenderer::drawTextRotated90CW(const int fontId, const int x, const int y, const char* text, const bool black,
|
|
const EpdFontFamily::Style style) const {
|
|
// Cannot draw a NULL / empty string
|
|
if (text == nullptr || *text == '\0') {
|
|
return;
|
|
}
|
|
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return;
|
|
}
|
|
const auto font = fontMap.at(fontId);
|
|
|
|
// No printable characters
|
|
if (!font.hasPrintableChars(text, style)) {
|
|
return;
|
|
}
|
|
|
|
// For 90° clockwise rotation:
|
|
// Original (glyphX, glyphY) -> Rotated (glyphY, -glyphX)
|
|
// Text reads from bottom to top
|
|
|
|
int yPos = y; // Current Y position (decreases as we draw characters)
|
|
|
|
uint32_t cp;
|
|
while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&text)))) {
|
|
const EpdGlyph* glyph = font.getGlyph(cp, style);
|
|
if (!glyph) {
|
|
glyph = font.getGlyph(REPLACEMENT_GLYPH, style);
|
|
}
|
|
if (!glyph) {
|
|
continue;
|
|
}
|
|
|
|
const int is2Bit = font.getData(style)->is2Bit;
|
|
const uint32_t offset = glyph->dataOffset;
|
|
const uint8_t width = glyph->width;
|
|
const uint8_t height = glyph->height;
|
|
const int left = glyph->left;
|
|
const int top = glyph->top;
|
|
|
|
const uint8_t* bitmap = &font.getData(style)->bitmap[offset];
|
|
|
|
if (bitmap != nullptr) {
|
|
for (int glyphY = 0; glyphY < height; glyphY++) {
|
|
for (int glyphX = 0; glyphX < width; glyphX++) {
|
|
const int pixelPosition = glyphY * width + glyphX;
|
|
|
|
// 90° clockwise rotation transformation:
|
|
// screenX = x + (ascender - top + glyphY)
|
|
// screenY = yPos - (left + glyphX)
|
|
const int screenX = x + (font.getData(style)->ascender - top + glyphY);
|
|
const int screenY = yPos - left - glyphX;
|
|
|
|
if (is2Bit) {
|
|
const uint8_t byte = bitmap[pixelPosition / 4];
|
|
const uint8_t bit_index = (3 - pixelPosition % 4) * 2;
|
|
const uint8_t bmpVal = 3 - (byte >> bit_index) & 0x3;
|
|
|
|
if (renderMode == BW && bmpVal < 3) {
|
|
drawPixel(screenX, screenY, black);
|
|
} else if (renderMode == GRAYSCALE_MSB && (bmpVal == 1 || bmpVal == 2)) {
|
|
drawPixel(screenX, screenY, false);
|
|
} else if (renderMode == GRAYSCALE_LSB && bmpVal == 1) {
|
|
drawPixel(screenX, screenY, false);
|
|
}
|
|
} else {
|
|
const uint8_t byte = bitmap[pixelPosition / 8];
|
|
const uint8_t bit_index = 7 - (pixelPosition % 8);
|
|
|
|
if ((byte >> bit_index) & 1) {
|
|
drawPixel(screenX, screenY, black);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Move to next character position (going up, so decrease Y)
|
|
yPos -= glyph->advanceX;
|
|
}
|
|
}
|
|
|
|
void GfxRenderer::drawTextRotated90CCW(const int fontId, const int x, const int y, const char* text, const bool black,
|
|
const EpdFontFamily::Style style) const {
|
|
// Cannot draw a NULL / empty string
|
|
if (text == nullptr || *text == '\0') {
|
|
return;
|
|
}
|
|
|
|
if (fontMap.count(fontId) == 0) {
|
|
Serial.printf("[%lu] [GFX] Font %d not found\n", millis(), fontId);
|
|
return;
|
|
}
|
|
const auto font = fontMap.at(fontId);
|
|
|
|
// No printable characters
|
|
if (!font.hasPrintableChars(text, style)) {
|
|
return;
|
|
}
|
|
|
|
// For 90° counter-clockwise rotation:
|
|
// Mirror of CW: glyphY maps to -X direction, glyphX maps to +Y direction
|
|
// Text reads from top to bottom
|
|
|
|
const int advanceY = font.getData(style)->advanceY;
|
|
const int ascender = font.getData(style)->ascender;
|
|
|
|
int yPos = y; // Current Y position (increases as we draw characters)
|
|
|
|
uint32_t cp;
|
|
while ((cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&text)))) {
|
|
const EpdGlyph* glyph = font.getGlyph(cp, style);
|
|
if (!glyph) {
|
|
glyph = font.getGlyph(REPLACEMENT_GLYPH, style);
|
|
}
|
|
if (!glyph) {
|
|
continue;
|
|
}
|
|
|
|
const int is2Bit = font.getData(style)->is2Bit;
|
|
const uint32_t offset = glyph->dataOffset;
|
|
const uint8_t width = glyph->width;
|
|
const uint8_t height = glyph->height;
|
|
const int left = glyph->left;
|
|
const int top = glyph->top;
|
|
|
|
const uint8_t* bitmap = &font.getData(style)->bitmap[offset];
|
|
|
|
if (bitmap != nullptr) {
|
|
for (int glyphY = 0; glyphY < height; glyphY++) {
|
|
for (int glyphX = 0; glyphX < width; glyphX++) {
|
|
const int pixelPosition = glyphY * width + glyphX;
|
|
|
|
// 90° counter-clockwise rotation transformation:
|
|
// screenX = mirrored CW X (right-to-left within advanceY span)
|
|
// screenY = yPos + (left + glyphX) (downward)
|
|
const int screenX = x + advanceY - 1 - (ascender - top + glyphY);
|
|
const int screenY = yPos + left + glyphX;
|
|
|
|
if (is2Bit) {
|
|
const uint8_t byte = bitmap[pixelPosition / 4];
|
|
const uint8_t bit_index = (3 - pixelPosition % 4) * 2;
|
|
const uint8_t bmpVal = 3 - (byte >> bit_index) & 0x3;
|
|
|
|
if (renderMode == BW && bmpVal < 3) {
|
|
drawPixel(screenX, screenY, black);
|
|
} else if (renderMode == GRAYSCALE_MSB && (bmpVal == 1 || bmpVal == 2)) {
|
|
drawPixel(screenX, screenY, false);
|
|
} else if (renderMode == GRAYSCALE_LSB && bmpVal == 1) {
|
|
drawPixel(screenX, screenY, false);
|
|
}
|
|
} else {
|
|
const uint8_t byte = bitmap[pixelPosition / 8];
|
|
const uint8_t bit_index = 7 - (pixelPosition % 8);
|
|
|
|
if ((byte >> bit_index) & 1) {
|
|
drawPixel(screenX, screenY, black);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Move to next character position (going down, so increase Y)
|
|
yPos += glyph->advanceX;
|
|
}
|
|
}
|
|
|
|
uint8_t* GfxRenderer::getFrameBuffer() const { return frameBuffer; }
|
|
|
|
size_t GfxRenderer::getBufferSize() { return HalDisplay::BUFFER_SIZE; }
|
|
|
|
// unused
|
|
// void GfxRenderer::grayscaleRevert() const { display.grayscaleRevert(); }
|
|
|
|
void GfxRenderer::copyGrayscaleLsbBuffers() const { display.copyGrayscaleLsbBuffers(frameBuffer); }
|
|
|
|
void GfxRenderer::copyGrayscaleMsbBuffers() const { display.copyGrayscaleMsbBuffers(frameBuffer); }
|
|
|
|
void GfxRenderer::displayGrayBuffer() const { display.displayGrayBuffer(fadingFix); }
|
|
|
|
void GfxRenderer::freeBwBufferChunks() {
|
|
for (auto& bwBufferChunk : bwBufferChunks) {
|
|
if (bwBufferChunk) {
|
|
free(bwBufferChunk);
|
|
bwBufferChunk = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This should be called before grayscale buffers are populated.
|
|
* A `restoreBwBuffer` call should always follow the grayscale render if this method was called.
|
|
* Uses chunked allocation to avoid needing 48KB of contiguous memory.
|
|
* Returns true if buffer was stored successfully, false if allocation failed.
|
|
*/
|
|
bool GfxRenderer::storeBwBuffer() {
|
|
// Allocate and copy each chunk
|
|
for (size_t i = 0; i < BW_BUFFER_NUM_CHUNKS; i++) {
|
|
// Check if any chunks are already allocated
|
|
if (bwBufferChunks[i]) {
|
|
Serial.printf("[%lu] [GFX] !! BW buffer chunk %zu already stored - this is likely a bug, freeing chunk\n",
|
|
millis(), i);
|
|
free(bwBufferChunks[i]);
|
|
bwBufferChunks[i] = nullptr;
|
|
}
|
|
|
|
const size_t offset = i * BW_BUFFER_CHUNK_SIZE;
|
|
bwBufferChunks[i] = static_cast<uint8_t*>(malloc(BW_BUFFER_CHUNK_SIZE));
|
|
|
|
if (!bwBufferChunks[i]) {
|
|
Serial.printf("[%lu] [GFX] !! Failed to allocate BW buffer chunk %zu (%zu bytes)\n", millis(), i,
|
|
BW_BUFFER_CHUNK_SIZE);
|
|
// Free previously allocated chunks
|
|
freeBwBufferChunks();
|
|
return false;
|
|
}
|
|
|
|
memcpy(bwBufferChunks[i], frameBuffer + offset, BW_BUFFER_CHUNK_SIZE);
|
|
}
|
|
|
|
Serial.printf("[%lu] [GFX] Stored BW buffer in %zu chunks (%zu bytes each)\n", millis(), BW_BUFFER_NUM_CHUNKS,
|
|
BW_BUFFER_CHUNK_SIZE);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* This can only be called if `storeBwBuffer` was called prior to the grayscale render.
|
|
* It should be called to restore the BW buffer state after grayscale rendering is complete.
|
|
* Uses chunked restoration to match chunked storage.
|
|
*/
|
|
void GfxRenderer::restoreBwBuffer() {
|
|
// Check if any all chunks are allocated
|
|
bool missingChunks = false;
|
|
for (const auto& bwBufferChunk : bwBufferChunks) {
|
|
if (!bwBufferChunk) {
|
|
missingChunks = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (missingChunks) {
|
|
freeBwBufferChunks();
|
|
return;
|
|
}
|
|
|
|
for (size_t i = 0; i < BW_BUFFER_NUM_CHUNKS; i++) {
|
|
// Check if chunk is missing
|
|
if (!bwBufferChunks[i]) {
|
|
Serial.printf("[%lu] [GFX] !! BW buffer chunks not stored - this is likely a bug\n", millis());
|
|
freeBwBufferChunks();
|
|
return;
|
|
}
|
|
|
|
const size_t offset = i * BW_BUFFER_CHUNK_SIZE;
|
|
memcpy(frameBuffer + offset, bwBufferChunks[i], BW_BUFFER_CHUNK_SIZE);
|
|
}
|
|
|
|
display.cleanupGrayscaleBuffers(frameBuffer);
|
|
|
|
freeBwBufferChunks();
|
|
Serial.printf("[%lu] [GFX] Restored and freed BW buffer chunks\n", millis());
|
|
}
|
|
|
|
/**
|
|
* Cleanup grayscale buffers using the current frame buffer.
|
|
* Use this when BW buffer was re-rendered instead of stored/restored.
|
|
*/
|
|
void GfxRenderer::cleanupGrayscaleWithFrameBuffer() const {
|
|
if (frameBuffer) {
|
|
display.cleanupGrayscaleBuffers(frameBuffer);
|
|
}
|
|
}
|
|
|
|
void GfxRenderer::renderChar(const EpdFontFamily& fontFamily, const uint32_t cp, int* x, const int* y,
|
|
const bool pixelState, const EpdFontFamily::Style style) const {
|
|
const EpdGlyph* glyph = fontFamily.getGlyph(cp, style);
|
|
if (!glyph) {
|
|
glyph = fontFamily.getGlyph(REPLACEMENT_GLYPH, style);
|
|
}
|
|
|
|
// no glyph?
|
|
if (!glyph) {
|
|
Serial.printf("[%lu] [GFX] No glyph for codepoint %d\n", millis(), cp);
|
|
return;
|
|
}
|
|
|
|
const int is2Bit = fontFamily.getData(style)->is2Bit;
|
|
const uint32_t offset = glyph->dataOffset;
|
|
const uint8_t width = glyph->width;
|
|
const uint8_t height = glyph->height;
|
|
const int left = glyph->left;
|
|
|
|
const uint8_t* bitmap = nullptr;
|
|
bitmap = &fontFamily.getData(style)->bitmap[offset];
|
|
|
|
if (bitmap != nullptr) {
|
|
for (int glyphY = 0; glyphY < height; glyphY++) {
|
|
const int screenY = *y - glyph->top + glyphY;
|
|
for (int glyphX = 0; glyphX < width; glyphX++) {
|
|
const int pixelPosition = glyphY * width + glyphX;
|
|
const int screenX = *x + left + glyphX;
|
|
|
|
if (is2Bit) {
|
|
const uint8_t byte = bitmap[pixelPosition / 4];
|
|
const uint8_t bit_index = (3 - pixelPosition % 4) * 2;
|
|
// the direct bit from the font is 0 -> white, 1 -> light gray, 2 -> dark gray, 3 -> black
|
|
// we swap this to better match the way images and screen think about colors:
|
|
// 0 -> black, 1 -> dark grey, 2 -> light grey, 3 -> white
|
|
const uint8_t bmpVal = 3 - (byte >> bit_index) & 0x3;
|
|
|
|
if (renderMode == BW && bmpVal < 3) {
|
|
// Black (also paints over the grays in BW mode)
|
|
drawPixel(screenX, screenY, pixelState);
|
|
} else if (renderMode == GRAYSCALE_MSB && (bmpVal == 1 || bmpVal == 2)) {
|
|
// Light gray (also mark the MSB if it's going to be a dark gray too)
|
|
// We have to flag pixels in reverse for the gray buffers, as 0 leave alone, 1 update
|
|
drawPixel(screenX, screenY, false);
|
|
} else if (renderMode == GRAYSCALE_LSB && bmpVal == 1) {
|
|
// Dark gray
|
|
drawPixel(screenX, screenY, false);
|
|
}
|
|
} else {
|
|
const uint8_t byte = bitmap[pixelPosition / 8];
|
|
const uint8_t bit_index = 7 - (pixelPosition % 8);
|
|
|
|
if ((byte >> bit_index) & 1) {
|
|
drawPixel(screenX, screenY, pixelState);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*x += glyph->advanceX;
|
|
}
|
|
|
|
void GfxRenderer::getOrientedViewableTRBL(int* outTop, int* outRight, int* outBottom, int* outLeft) const {
|
|
switch (orientation) {
|
|
case Portrait:
|
|
*outTop = VIEWABLE_MARGIN_TOP;
|
|
*outRight = VIEWABLE_MARGIN_RIGHT;
|
|
*outBottom = VIEWABLE_MARGIN_BOTTOM;
|
|
*outLeft = VIEWABLE_MARGIN_LEFT;
|
|
break;
|
|
case LandscapeClockwise:
|
|
*outTop = VIEWABLE_MARGIN_LEFT;
|
|
*outRight = VIEWABLE_MARGIN_TOP;
|
|
*outBottom = VIEWABLE_MARGIN_RIGHT;
|
|
*outLeft = VIEWABLE_MARGIN_BOTTOM;
|
|
break;
|
|
case PortraitInverted:
|
|
*outTop = VIEWABLE_MARGIN_BOTTOM;
|
|
*outRight = VIEWABLE_MARGIN_LEFT;
|
|
*outBottom = VIEWABLE_MARGIN_TOP;
|
|
*outLeft = VIEWABLE_MARGIN_RIGHT;
|
|
break;
|
|
case LandscapeCounterClockwise:
|
|
*outTop = VIEWABLE_MARGIN_RIGHT;
|
|
*outRight = VIEWABLE_MARGIN_BOTTOM;
|
|
*outBottom = VIEWABLE_MARGIN_LEFT;
|
|
*outLeft = VIEWABLE_MARGIN_TOP;
|
|
break;
|
|
}
|
|
}
|