Fix SPIRAM checks and allow conversion APIs to be built for all platforms (#397)

Signed-off-by: Vikram <vikram.dattu@espressif.com>

CMakeLists.txt

@@ -1,5 +1,24 @@
+# set conversion sources
+set(COMPONENT_SRCS
+  conversions/yuv.c
+  conversions/to_jpg.cpp
+  conversions/to_bmp.c
+  conversions/jpge.cpp
+  conversions/esp_jpg_decode.c
+  )
+
+set(COMPONENT_PRIV_INCLUDEDIRS
+  conversions/private_include
+  )
+
+set(COMPONENT_ADD_INCLUDEDIRS
+  driver/include
+  conversions/include
+  )
+
+# set driver sources only for supported platforms
 if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET STREQUAL "esp32s3")
-  set(COMPONENT_SRCS
+  list(APPEND COMPONENT_SRCS
     driver/esp_camera.c
     driver/cam_hal.c
     driver/sccb.c
@@ -16,22 +35,11 @@ if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET ST
     sensors/bf3005.c
     sensors/bf20a6.c
     sensors/sc030iot.c
-    conversions/yuv.c
-    conversions/to_jpg.cpp
-    conversions/to_bmp.c
-    conversions/jpge.cpp
-    conversions/esp_jpg_decode.c
     )
 
-  set(COMPONENT_ADD_INCLUDEDIRS
+  list(APPEND COMPONENT_PRIV_INCLUDEDIRS
-    driver/include
-    conversions/include
-    )
-
-  set(COMPONENT_PRIV_INCLUDEDIRS
     driver/private_include
     sensors/private_include
-    conversions/private_include
     target/private_include
     )
 
@@ -70,5 +78,6 @@ if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET ST
     message(WARNING "ESP-IDF version detected: '${idf_version}'.")
   endif()
 
-  register_component()
 endif()
+
+register_component()

conversions/esp_jpg_decode.c

@@ -21,6 +21,10 @@
 #include "tjpgd.h"
 #elif CONFIG_IDF_TARGET_ESP32S3
 #include "esp32s3/rom/tjpgd.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/tjpgd.h"
+#elif CONFIG_IDF_TARGET_ESP32H2
+#include "esp32h2/rom/tjpgd.h"
 #else
 #error Target CONFIG_IDF_TARGET is not supported
 #endif

conversions/jpge.cpp

@@ -29,7 +29,12 @@ namespace jpge {
         if(b){
             return b;
         }
+    // check if SPIRAM is enabled and allocate on SPIRAM if allocatable
+#if (CONFIG_SPIRAM_SUPPORT && (CONFIG_SPIRAM_USE_CAPS_ALLOC || CONFIG_SPIRAM_USE_MALLOC))
         return heap_caps_malloc(nSize, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
+#else
+        return NULL;
+#endif
     }
     static inline void jpge_free(void *p) { free(p); }
 

conversions/to_bmp.c

@@ -21,19 +21,6 @@
 #include "esp_jpg_decode.h"
 
 #include "esp_system.h"
-#if ESP_IDF_VERSION_MAJOR >= 4 // IDF 4+
-#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
-#include "esp32/spiram.h"
-#elif CONFIG_IDF_TARGET_ESP32S2
-#include "esp32s2/spiram.h"
-#elif CONFIG_IDF_TARGET_ESP32S3
-#include "esp32s3/spiram.h"
-#else 
-#error Target CONFIG_IDF_TARGET is not supported
-#endif
-#else // ESP32 Before IDF 4.0
-#include "esp_spiram.h"
-#endif
 
 #if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
 #include "esp32-hal-log.h"
@@ -72,7 +59,12 @@ typedef struct {
 
 static void *_malloc(size_t size)
 {
+    // check if SPIRAM is enabled and allocate on SPIRAM if allocatable
+#if (CONFIG_SPIRAM_SUPPORT && (CONFIG_SPIRAM_USE_CAPS_ALLOC || CONFIG_SPIRAM_USE_MALLOC))
     return heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
+#endif
+    // try allocating in internal memory
+    return malloc(size);
 }
 
 //output buffer and image width

conversions/to_jpg.cpp

@@ -21,21 +21,6 @@
 #include "jpge.h"
 #include "yuv.h"
 
-#include "esp_system.h"
-#if ESP_IDF_VERSION_MAJOR >= 4 // IDF 4+
-#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
-#include "esp32/spiram.h"
-#elif CONFIG_IDF_TARGET_ESP32S2
-#include "esp32s2/spiram.h"
-#elif CONFIG_IDF_TARGET_ESP32S3
-#include "esp32s3/spiram.h"
-#else 
-#error Target CONFIG_IDF_TARGET is not supported
-#endif
-#else // ESP32 Before IDF 4.0
-#include "esp_spiram.h"
-#endif
-
 #if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
 #include "esp32-hal-log.h"
 #define TAG ""
@@ -50,7 +35,12 @@ static void *_malloc(size_t size)
     if(res) {
         return res;
     }
+
+    // check if SPIRAM is enabled and is allocatable
+#if (CONFIG_SPIRAM_SUPPORT && (CONFIG_SPIRAM_USE_CAPS_ALLOC || CONFIG_SPIRAM_USE_MALLOC))
     return heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
+#endif
+    return NULL;
 }
 
 static IRAM_ATTR void convert_line_format(uint8_t * src, pixformat_t format, uint8_t * dst, size_t width, size_t in_channels, size_t line)