2 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali/internal/render/gl-resources/native-texture.h>
22 #include <dali/integration-api/debug.h>
23 #include <dali/internal/render/common/vertex.h>
24 #include <dali/internal/render/gl-resources/context.h>
25 #include <dali/internal/render/gl-resources/texture.h>
26 #include <dali/internal/render/gl-resources/texture-units.h>
34 NativeTexture::NativeTexture(NativeImageInterface* nativeImg, Context& context)
36 nativeImg->GetWidth(),
37 nativeImg->GetHeight(),
38 nativeImg->GetWidth(),
39 nativeImg->GetHeight()),
40 mNativeImage(nativeImg)
42 DALI_LOG_INFO( Debug::Filter::gImage, Debug::General, "NativeTexture created 0x%x\n", &nativeImg );
45 NativeTexture::~NativeTexture()
47 DALI_LOG_INFO (Debug::Filter::gImage, Debug::General, "NativeTexture destroyed\n");
48 // GlCleanup() should already have been called by TextureCache ensuring the resource is destroyed
49 // on the render thread. (And avoiding a potentially problematic virtual call in the destructor)
52 bool NativeTexture::Bind(GLenum target, TextureUnit textureunit )
62 // Bind the texture id
63 mContext.ActiveTexture( textureunit );
64 mContext.Bind2dTexture( mId );
66 mNativeImage->PrepareTexture();
71 bool NativeTexture::IsFullyOpaque() const
73 return !HasAlphaChannel();
76 bool NativeTexture::HasAlphaChannel() const
78 return mNativeImage->RequiresBlending();
81 bool NativeTexture::CreateGlTexture()
83 if( mNativeImage->GlExtensionCreate() )
85 mContext.GenTextures( 1, &mId );
86 mContext.ActiveTexture( TEXTURE_UNIT_UPLOAD ); // bind in unused unit so rebind works the first time
87 mContext.Bind2dTexture( mId );
89 mContext.PixelStorei( GL_UNPACK_ALIGNMENT, 1 ); // We always use tightly packed data
91 mContext.TexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
92 mContext.TexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
94 // platform specific implementation decides on what GL extension to use
95 mNativeImage->TargetTexture();
99 DALI_LOG_ERROR( "Error creating native image!" );
105 void NativeTexture::GlCleanup()
107 Texture::GlCleanup();
109 DALI_ASSERT_DEBUG(mNativeImage);
111 mNativeImage->GlExtensionDestroy();
113 mNativeImage.Reset();
116 bool NativeTexture::Init()
121 } //namespace Internal