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comparison: gfx/layers/d3d9/ColorLayerD3D9.cpp
gfx/layers/d3d9/ColorLayerD3D9.cpp
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "ColorLayerD3D9.h" | |
| 7 | |
| 8 namespace mozilla { | |
| 9 namespace layers { | |
| 10 | |
| 11 Layer* | |
| 12 ColorLayerD3D9::GetLayer() | |
| 13 { | |
| 14 return this; | |
| 15 } | |
| 16 | |
| 17 static void | |
| 18 RenderColorLayerD3D9(ColorLayer* aLayer, LayerManagerD3D9 *aManager) | |
| 19 { | |
| 20 // XXX we might be able to improve performance by using | |
| 21 // IDirect3DDevice9::Clear | |
| 22 if (aManager->CompositingDisabled()) { | |
| 23 return; | |
| 24 } | |
| 25 | |
| 26 nsIntRect bounds = aLayer->GetBounds(); | |
| 27 | |
| 28 aManager->device()->SetVertexShaderConstantF( | |
| 29 CBvLayerQuad, | |
| 30 ShaderConstantRect(bounds.x, | |
| 31 bounds.y, | |
| 32 bounds.width, | |
| 33 bounds.height), | |
| 34 1); | |
| 35 | |
| 36 const gfx::Matrix4x4& transform = aLayer->GetEffectiveTransform(); | |
| 37 aManager->device()->SetVertexShaderConstantF(CBmLayerTransform, &transform._11, 4); | |
| 38 | |
| 39 gfxRGBA layerColor(aLayer->GetColor()); | |
| 40 float color[4]; | |
| 41 float opacity = aLayer->GetEffectiveOpacity() * layerColor.a; | |
| 42 // output color is premultiplied, so we need to adjust all channels. | |
| 43 // mColor is not premultiplied. | |
| 44 color[0] = (float)(layerColor.r * opacity); | |
| 45 color[1] = (float)(layerColor.g * opacity); | |
| 46 color[2] = (float)(layerColor.b * opacity); | |
| 47 color[3] = (float)(opacity); | |
| 48 | |
| 49 aManager->device()->SetPixelShaderConstantF(CBvColor, color, 1); | |
| 50 | |
| 51 aManager->SetShaderMode(DeviceManagerD3D9::SOLIDCOLORLAYER, | |
| 52 aLayer->GetMaskLayer()); | |
| 53 | |
| 54 aManager->device()->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2); | |
| 55 } | |
| 56 | |
| 57 void | |
| 58 ColorLayerD3D9::RenderLayer() | |
| 59 { | |
| 60 return RenderColorLayerD3D9(this, mD3DManager); | |
| 61 } | |
| 62 | |
| 63 } /* layers */ | |
| 64 } /* mozilla */ |
