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HUB75 bitdepth reduction rules per MCU

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Frank
2024-10-14 21:26:36 +02:00
parent d67ba8451a
commit 00a1a5a871
1 changed files with 42 additions and 7 deletions
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49
wled00/bus_manager.cpp
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@@ -529,6 +529,41 @@ HUB75_I2S_CFG BusHub75Matrix::activeMXconfig = HUB75_I2S_CFG();
uint8_t BusHub75Matrix::activeType = 0;
uint8_t BusHub75Matrix::instanceCount = 0;
// --------------------------
// Bitdepth reduction based on panel size
// --------------------------
#if defined(CONFIG_IDF_TARGET_ESP32S3) && CONFIG_SPIRAM_MODE_OCT && defined(BOARD_HAS_PSRAM) && (defined(WLED_USE_PSRAM) || defined(WLED_USE_PSRAM_JSON))
// esp32-S3 with octal PSRAM
#if defined(SPIRAM_FRAMEBUFFER)
// when PSRAM is used for pixel buffers
#define MAX_PIXELS_8BIT (192 * 64)
#define MAX_PIXELS_6BIT ( 64 * 64) // trick: skip this category, so we go directly from 8bit to 4bit
#define MAX_PIXELS_4BIT (256 * 128)
#else
// PSRAM not used for pixel buffers
#define MAX_PIXELS_8BIT (128 * 64)
#define MAX_PIXELS_6BIT (192 * 64)
#define MAX_PIXELS_4BIT (256 * 64)
#endif
#elif defined(CONFIG_IDF_TARGET_ESP32S3)
// standard esp32-S3
#define MAX_PIXELS_8BIT ( 96 * 64)
#define MAX_PIXELS_6BIT (128 * 64)
#define MAX_PIXELS_4BIT (160 * 64)
#elif defined(CONFIG_IDF_TARGET_ESP32S2)
// esp32-S2 only has 320KB RAM
#define MAX_PIXELS_8BIT ( 48 * 48)
#define MAX_PIXELS_6BIT ( 64 * 48)
#define MAX_PIXELS_4BIT ( 96 * 64)
#else
// classic esp32, and anything else
#define MAX_PIXELS_8BIT ( 64 * 64)
#define MAX_PIXELS_6BIT ( 96 * 64)
#define MAX_PIXELS_4BIT (128 * 64)
#endif
// --------------------------
BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWhite) {
MatrixPanel_I2S_DMA* display = nullptr;
VirtualMatrixPanel* fourScanPanel = nullptr;
@@ -606,13 +641,13 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
break;
}
#if defined(CONFIG_IDF_TARGET_ESP32) || defined(CONFIG_IDF_TARGET_ESP32S2)// classic esp32, or esp32-s2: reduce bitdepth for large panels
if (mxconfig.mx_height >= 64) {
if (mxconfig.chain_length * mxconfig.mx_width > 192) mxconfig.setPixelColorDepthBits(3);
else if (mxconfig.chain_length * mxconfig.mx_width > 64) mxconfig.setPixelColorDepthBits(4);
else mxconfig.setPixelColorDepthBits(8);
} else mxconfig.setPixelColorDepthBits(8);
#endif
// reduce bitdepth based on total pixels
unsigned numPixels = mxconfig.mx_height * mxconfig.mx_width * mxconfig.chain_length;
if (numPixels <= MAX_PIXELS_8BIT) mxconfig.setPixelColorDepthBits(8); // 24bit
else if (numPixels <= MAX_PIXELS_6BIT) mxconfig.setPixelColorDepthBits(6); // 18bit
else if (numPixels <= MAX_PIXELS_4BIT) mxconfig.setPixelColorDepthBits(4); // 12bit
else mxconfig.setPixelColorDepthBits(3); // 9bit
#if defined(ARDUINO_ADAFRUIT_MATRIXPORTAL_ESP32S3) // MatrixPortal ESP32-S3