media:cpp --transform 1/3

packages/media/cpp/src/core/transform.cpp

@@ -119,7 +119,7 @@ static TransformResult call_gemini(
     std::string mime = mime_from_ext(fs::path(input_path).extension().string());
     std::string b64  = base64_encode(img_bytes.data(), img_bytes.size());
 
-    // Build request JSON
+    // Build request JSON (Gemini 3 REST API)
     json req_body = {
         {"contents", json::array({
             {{"parts", json::array({
@@ -133,7 +133,7 @@ static TransformResult call_gemini(
     };
 
     std::string url = "https://generativelanguage.googleapis.com/v1beta/models/"
-                    + opts.model + ":generateContent?key=" + opts.api_key;
+                    + opts.model + ":generateContent";
 
     std::string body_str = req_body.dump();
 
@@ -150,6 +150,8 @@ static TransformResult call_gemini(
     std::string response_str;
     struct curl_slist* headers = nullptr;
     headers = curl_slist_append(headers, "Content-Type: application/json");
+    std::string auth_header = "x-goog-api-key: " + opts.api_key;
+    headers = curl_slist_append(headers, auth_header.c_str());
 
     curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

packages/media/cpp/src/main.cpp

@@ -151,7 +151,7 @@ int main(int argc, char **argv) {
     std::string tf_output;
     std::string tf_prompt;
     std::string tf_provider = "google";
-    std::string tf_model    = "gemini-2.0-flash-exp";
+    std::string tf_model    = "gemini-3-pro-image-preview";
     std::string tf_api_key;
 
     auto *transform_cmd = app.add_subcommand("transform", "AI image editing (Gemini / Google)");
@@ -159,7 +159,7 @@ int main(int argc, char **argv) {
     transform_cmd->add_option("output", tf_output, "Output path (omit = auto from input + prompt)");
     transform_cmd->add_option("-p,--prompt", tf_prompt, "Editing prompt")->required(true);
     transform_cmd->add_option("--provider", tf_provider, "AI provider (google)")->default_val("google");
-    transform_cmd->add_option("--model", tf_model, "Model name")->default_val("gemini-2.0-flash-exp");
+    transform_cmd->add_option("--model", tf_model, "Model name")->default_val("gemini-3-pro-image-preview");
     transform_cmd->add_option("--api-key", tf_api_key, "API key (or set IMAGE_TRANSFORM_GOOGLE_API_KEY env)");
 
     // ── serve ───────────────────────────────────────────────────────────

packages/media/cpp/src/win/ui_next/Resource.h

@@ -25,10 +25,17 @@
 #define IDC_CHK_AUTOROT         608
 #define IDC_CHK_STRIP           609
 
+// AI Transform dialog controls
+#define IDD_TRANSFORM_PROMPT    700
+#define IDC_EDIT_PROMPT         701
+#define IDC_STATIC_PROMPT_LABEL 702
+
 // User messages
 #define UWM_QUEUE_PROGRESS      (WM_USER + 100)
 #define UWM_QUEUE_DONE          (WM_USER + 101)
 #define UWM_IMAGELOADED         (WM_USER + 102)
 #define UWM_QUEUE_ITEM_CLICKED  (WM_USER + 103)
+#define UWM_TRANSFORM_PROGRESS  (WM_USER + 104)
+#define UWM_TRANSFORM_DONE      (WM_USER + 105)
 
 #endif // PM_UI_RESOURCE_H

packages/media/cpp/src/win/ui_next/Ribbon.xml

@@ -74,6 +74,29 @@
       </Command.LabelTitle>
     </Command>
 
+    <!-- AI Transform tab -->
+    <Command Name="cmdTabAI" Id="410">
+      <Command.LabelTitle>
+        <String Id="4101">AI Transform</String>
+      </Command.LabelTitle>
+    </Command>
+    <Command Name="cmdGroupTransform" Id="411">
+      <Command.LabelTitle>
+        <String Id="4111">Transform</String>
+      </Command.LabelTitle>
+    </Command>
+    <Command Name="cmdTransform" Symbol="IDC_CMD_TRANSFORM" Id="310">
+      <Command.LabelTitle>
+        <String Id="3101">Transform</String>
+      </Command.LabelTitle>
+      <Command.LargeImages>
+        <Image Id="3102">res/TransformL.bmp</Image>
+      </Command.LargeImages>
+      <Command.SmallImages>
+        <Image Id="3103">res/TransformS.bmp</Image>
+      </Command.SmallImages>
+    </Command>
+
     <!-- Misc -->
     <Command Name="cmdAppMenu" Id="710" />
     <Command Name="cmdHelp" Symbol="IDC_RIBBONHELP" Id="700" />
@@ -121,6 +144,19 @@
             <Button CommandName="cmdResize" />
           </Group>
         </Tab>
+        <Tab CommandName="cmdTabAI">
+          <Tab.ScalingPolicy>
+            <ScalingPolicy>
+              <ScalingPolicy.IdealSizes>
+                <Scale Group="cmdGroupTransform" Size="Large" />
+              </ScalingPolicy.IdealSizes>
+              <Scale Group="cmdGroupTransform" Size="Popup" />
+            </ScalingPolicy>
+          </Tab.ScalingPolicy>
+          <Group CommandName="cmdGroupTransform" SizeDefinition="OneButton">
+            <Button CommandName="cmdTransform" />
+          </Group>
+        </Tab>
       </Ribbon.Tabs>
 
       <Ribbon.HelpButton>

packages/media/cpp/src/win/ui_next/gen_icons.ps1

@@ -42,4 +42,8 @@ Convert-PngToBmp "$resDir\16x16_0300\cross.png" "$resDir\ClearS.bmp" 16
 # Resize -> arrow_out.png
 Convert-PngToBmp "$resDir\32x32_0060\arrow_out.png" "$resDir\ResizeL.bmp" 32
 
+# AI Transform -> paintbrush.png
+Convert-PngToBmp "$resDir\32x32_0700\paintcan.png" "$resDir\TransformL.bmp" 32
+Convert-PngToBmp "$resDir\16x16_0700\paintbrush.png" "$resDir\TransformS.bmp" 16
+
 Write-Output "Done."