1 files changed, 47 insertions, 0 deletions
diff --git a/src/adaptationlayers/mactexturemanager.cpp b/src/adaptationlayers/mactexturemanager.cpp
new file mode 100644
index 0000000..dec66c6
--- /dev/null
+++ b/src/adaptationlayers/mactexturemanager.cpp
@@ -0,0 +1,47 @@
+#include "mactexturemanager.h"
+
+/*!
+    Since we are using client storage which means asynchronous DMA
+    uploads, we need to keep the bits around for the duration
+    of the texture id. So we keep the image in along in the reference
+ */
+class QSGMacTextureReference : public TextureReference
+{
+public:
+    QImage image;
+};
+
+
+QSGMacTextureManager::QSGMacTextureManager()
+{
+}
+
+
+const TextureReference *QSGMacTextureManager::requestUploadedTexture(const QImage &image, UploadHints hints, QObject *listener, const char *slot)
+{
+    // Client storage will most likely fail when mipmapping is used..
+    if (hints & TextureManager::GenerateMipmapUploadHint)
+        return TextureManager::requestUploadedTexture(image, hints, listener, slot);
+
+    GLuint id;
+    glGenTextures(1, &id);
+    glBindTexture(GL_TEXTURE_2D, id);
+
+    glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, 1);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_STORAGE_HINT_APPLE, GL_STORAGE_SHARED_APPLE);
+
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width(), image.height(), 0, GL_BGRA,
+                 GL_UNSIGNED_INT_8_8_8_8_REV, image.constBits());
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+
+    QSGMacTextureReference *texture = new QSGMacTextureReference;
+    texture->image = image;
+    texture->setTextureId(id);
+    texture->setTextureSize(image.size());
+    texture->setStatus(TextureReference::Uploaded);
+
+    return texture;
+}