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nacabaro
2026-05-27 14:38:10 +02:00
parent 595faaf946
commit ce23c44077
6 changed files with 6 additions and 32 deletions
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src/storage/storage.cpp
-12
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@@ -8,8 +8,6 @@
const char* TAG_S = "[STORAGE]";
// All sprites are upscaled by this factor at load time so draw_drawSprite
// can skip the scaling loop entirely at runtime.
#define SPRITE_SCALE 6
void storage_init() {
@@ -41,8 +39,6 @@ void storage_readFile(const char* path, struct SpriteData* spriteData) {
const uint8_t scaledW = width * SPRITE_SCALE;
const uint8_t scaledH = height * SPRITE_SCALE;
// Allocate scaled buffers in PSRAM (ps_malloc falls back to regular heap
// automatically if PSRAM is not available for a given allocation).
uint16_t** scaled = (uint16_t**) ps_malloc(spriteNumber * sizeof(uint16_t*));
if (!scaled) {
printf("%s PSRAM alloc failed for pointer table\n", TAG_S);
@@ -60,7 +56,6 @@ void storage_readFile(const char* path, struct SpriteData* spriteData) {
}
}
// Temporary single-row scratch buffer in internal RAM for reading from file
uint16_t* rowBuf = (uint16_t*) malloc(width * sizeof(uint16_t));
if (!rowBuf) {
printf("%s scratch alloc failed\n", TAG_S);
@@ -79,20 +74,16 @@ void storage_readFile(const char* path, struct SpriteData* spriteData) {
uint16_t* dst = scaled[sprN];
for (int srcY = 0; srcY < height; srcY++) {
// --- Read one source row, byte-swapping as we go ---
for (int srcX = 0; srcX < width; srcX++) {
uint8_t hi, lo;
file.read(&hi, 1);
file.read(&lo, 1);
// File is big-endian RGB565; TFT_eSPI expects little-endian
rowBuf[srcX] = (lo << 8) | hi;
}
// --- Scale row vertically (repeat SPRITE_SCALE times) ---
for (int dy = 0; dy < SPRITE_SCALE; dy++) {
uint16_t* dstRow = dst + (srcY * SPRITE_SCALE + dy) * scaledW;
// --- Scale each pixel horizontally ---
for (int srcX = 0; srcX < width; srcX++) {
uint16_t color = rowBuf[srcX];
uint16_t* dstPixel = dstRow + srcX * SPRITE_SCALE;
@@ -107,7 +98,6 @@ void storage_readFile(const char* path, struct SpriteData* spriteData) {
free(rowBuf);
file.close();
// Store scaled dimensions so the rest of the code sees the final size
spriteData->spriteWidth = scaledW;
spriteData->spriteHeight = scaledH;
spriteData->spriteNumber = spriteNumber;
@@ -140,8 +130,6 @@ void storage_initBackground(const char* path, TFT_eSprite& bg) {
uint8_t hi, lo;
file.read(&lo, 1);
file.read(&hi, 1);
// Store directly into sprite buffer – no byte swap needed here since
// background pixels are not going through the draw_drawSprite path.
bgBuf[i] = (hi << 8) | lo;
}