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Change the fb buffer as 16 bytes aligned #419

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Merged
merged 1 commit into from
Aug 23, 2022
Merged

Change the fb buffer as 16 bytes aligned #419

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6 changes: 6 additions & 0 deletions driver/cam_hal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -296,7 +296,13 @@ static esp_err_t cam_dma_config(const camera_config_t *config)
cam_obj->frames[x].fb_offset = 0;
cam_obj->frames[x].en = 0;
ESP_LOGI(TAG, "Allocating %d Byte frame buffer in %s", alloc_size, _caps & MALLOC_CAP_SPIRAM ? "PSRAM" : "OnBoard RAM");
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
// In IDF v4.2 and earlier, memory returned by heap_caps_aligned_alloc must be freed using heap_caps_aligned_free.
// And heap_caps_aligned_free is deprecated on v4.3.
cam_obj->frames[x].fb.buf = (uint8_t *)heap_caps_aligned_alloc(16, alloc_size, _caps);
#else
cam_obj->frames[x].fb.buf = (uint8_t *)heap_caps_malloc(alloc_size, _caps);
#endif
CAM_CHECK(cam_obj->frames[x].fb.buf != NULL, "frame buffer malloc failed", ESP_FAIL);
if (cam_obj->psram_mode) {
//align PSRAM buffer. TODO: save the offset so proper address can be freed later
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