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[online_image] Allocate pngle manually to potentially use psram (#8354)

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Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
This commit is contained in:
Jesse Hills 2025-05-22 13:40:53 +12:00
parent a5f85b4437
commit 5c54f75b7a
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GPG Key ID: BEAAE804EFD8E83A
4 changed files with 28 additions and 6 deletions
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2
esphome/components/online_image/__init__.py
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@ -75,7 +75,7 @@ class PNGFormat(Format):
def actions(self):
cg.add_define("USE_ONLINE_IMAGE_PNG_SUPPORT")
cg.add_library("pngle", "1.0.2")
cg.add_library("pngle", "1.1.0")
IMAGE_FORMATS = {

22
esphome/components/online_image/png_image.cpp
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@ -34,12 +34,32 @@ static void init_callback(pngle_t *pngle, uint32_t w, uint32_t h) {
* @param h The height of the rectangle to draw.
* @param rgba The color to paint the rectangle in.
*/
static void draw_callback(pngle_t *pngle, uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint8_t rgba[4]) {
static void draw_callback(pngle_t *pngle, uint32_t x, uint32_t y, uint32_t w, uint32_t h, const uint8_t rgba[4]) {
PngDecoder *decoder = (PngDecoder *) pngle_get_user_data(pngle);
Color color(rgba[0], rgba[1], rgba[2], rgba[3]);
decoder->draw(x, y, w, h, color);
}
PngDecoder::PngDecoder(OnlineImage *image) : ImageDecoder(image) {
{
pngle_t *pngle = this->allocator_.allocate(1, PNGLE_T_SIZE);
if (!pngle) {
ESP_LOGE(TAG, "Failed to allocate memory for PNGLE engine!");
return;
}
memset(pngle, 0, PNGLE_T_SIZE);
pngle_reset(pngle);
this->pngle_ = pngle;
}
}
PngDecoder::~PngDecoder() {
if (this->pngle_) {
pngle_reset(this->pngle_);
this->allocator_.deallocate(this->pngle_, PNGLE_T_SIZE);
}
}
int PngDecoder::prepare(size_t download_size) {
ImageDecoder::prepare(download_size);
if (!this->pngle_) {

8
esphome/components/online_image/png_image.h
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@ -1,7 +1,8 @@
#pragma once
#include "image_decoder.h"
#include "esphome/core/defines.h"
#include "esphome/core/helpers.h"
#include "image_decoder.h"
#ifdef USE_ONLINE_IMAGE_PNG_SUPPORT
#include <pngle.h>
@ -18,13 +19,14 @@ class PngDecoder : public ImageDecoder {
*
* @param display The image to decode the stream into.
*/
PngDecoder(OnlineImage *image) : ImageDecoder(image), pngle_(pngle_new()) {}
~PngDecoder() override { pngle_destroy(this->pngle_); }
PngDecoder(OnlineImage *image);
~PngDecoder() override;
int prepare(size_t download_size) override;
int HOT decode(uint8_t *buffer, size_t size) override;
protected:
RAMAllocator<pngle_t> allocator_;
pngle_t *pngle_;
};

2
platformio.ini
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@ -40,7 +40,7 @@ lib_deps =
wjtje/qr-code-generator-library@1.7.0 ; qr_code
functionpointer/arduino-MLX90393@1.0.2 ; mlx90393
pavlodn/HaierProtocol@0.9.31 ; haier
kikuchan98/pngle@1.0.2 ; online_image
kikuchan98/pngle@1.1.0 ; online_image
; Using the repository directly, otherwise ESP-IDF can't use the library
https://github.com/bitbank2/JPEGDEC.git#ca1e0f2 ; online_image
; This is using the repository until a new release is published to PlatformIO