1 //
2 // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // RenderbufferD3d.cpp: Implements the RenderbufferD3D class, a specialization of RenderbufferImpl
8
9
10 #include "libANGLE/renderer/d3d/RenderbufferD3D.h"
11
12 #include "libANGLE/Image.h"
13 #include "libANGLE/renderer/d3d/EGLImageD3D.h"
14 #include "libANGLE/renderer/d3d/RendererD3D.h"
15 #include "libANGLE/renderer/d3d/RenderTargetD3D.h"
16
17 namespace rx
18 {
RenderbufferD3D(RendererD3D * renderer)19 RenderbufferD3D::RenderbufferD3D(RendererD3D *renderer)
20 : mRenderer(renderer), mRenderTarget(nullptr), mImage(nullptr)
21 {
22 }
23
~RenderbufferD3D()24 RenderbufferD3D::~RenderbufferD3D()
25 {
26 SafeDelete(mRenderTarget);
27 mImage = nullptr;
28 }
29
onDestroy(const gl::Context * context)30 gl::Error RenderbufferD3D::onDestroy(const gl::Context *context)
31 {
32 deleteRenderTarget(context);
33 return gl::NoError();
34 }
35
setStorage(const gl::Context * context,GLenum internalformat,size_t width,size_t height)36 gl::Error RenderbufferD3D::setStorage(const gl::Context *context,
37 GLenum internalformat,
38 size_t width,
39 size_t height)
40 {
41 return setStorageMultisample(context, 0, internalformat, width, height);
42 }
43
setStorageMultisample(const gl::Context * context,size_t samples,GLenum internalformat,size_t width,size_t height)44 gl::Error RenderbufferD3D::setStorageMultisample(const gl::Context *context,
45 size_t samples,
46 GLenum internalformat,
47 size_t width,
48 size_t height)
49 {
50 // If the renderbuffer parameters are queried, the calling function
51 // will expect one of the valid renderbuffer formats for use in
52 // glRenderbufferStorage, but we should create depth and stencil buffers
53 // as DEPTH24_STENCIL8
54 GLenum creationFormat = internalformat;
55 if (internalformat == GL_DEPTH_COMPONENT16 || internalformat == GL_STENCIL_INDEX8)
56 {
57 creationFormat = GL_DEPTH24_STENCIL8_OES;
58 }
59
60 // ANGLE_framebuffer_multisample states GL_OUT_OF_MEMORY is generated on a failure to create
61 // the specified storage.
62 // Because ES 3.0 already knows the exact number of supported samples, it would already have been
63 // validated and generated GL_INVALID_VALUE.
64 const gl::TextureCaps &formatCaps = mRenderer->getNativeTextureCaps().get(creationFormat);
65 if (samples > formatCaps.getMaxSamples())
66 {
67 return gl::OutOfMemory() << "Renderbuffer format does not support " << samples
68 << " samples, " << formatCaps.getMaxSamples()
69 << " is the maximum.";
70 }
71
72 RenderTargetD3D *newRT = nullptr;
73 ANGLE_TRY(mRenderer->createRenderTarget(static_cast<int>(width), static_cast<int>(height),
74 creationFormat, static_cast<GLsizei>(samples), &newRT));
75
76 deleteRenderTarget(context);
77 mImage = nullptr;
78 mRenderTarget = newRT;
79
80 return gl::NoError();
81 }
82
setStorageEGLImageTarget(const gl::Context * context,egl::Image * image)83 gl::Error RenderbufferD3D::setStorageEGLImageTarget(const gl::Context *context, egl::Image *image)
84 {
85 mImage = GetImplAs<EGLImageD3D>(image);
86 deleteRenderTarget(context);
87
88 return gl::NoError();
89 }
90
getRenderTarget(const gl::Context * context,RenderTargetD3D ** outRenderTarget)91 gl::Error RenderbufferD3D::getRenderTarget(const gl::Context *context,
92 RenderTargetD3D **outRenderTarget)
93 {
94 if (mImage)
95 {
96 return mImage->getRenderTarget(context, outRenderTarget);
97 }
98 else
99 {
100 *outRenderTarget = mRenderTarget;
101 return gl::NoError();
102 }
103 }
104
getAttachmentRenderTarget(const gl::Context * context,GLenum,const gl::ImageIndex &,FramebufferAttachmentRenderTarget ** rtOut)105 gl::Error RenderbufferD3D::getAttachmentRenderTarget(const gl::Context *context,
106 GLenum /*binding*/,
107 const gl::ImageIndex & /*imageIndex*/,
108 FramebufferAttachmentRenderTarget **rtOut)
109 {
110 return getRenderTarget(context, reinterpret_cast<RenderTargetD3D **>(rtOut));
111 }
112
deleteRenderTarget(const gl::Context * context)113 void RenderbufferD3D::deleteRenderTarget(const gl::Context *context)
114 {
115 if (mRenderTarget)
116 {
117 mRenderTarget->signalDirty(context);
118 SafeDelete(mRenderTarget);
119 }
120 }
121
initializeContents(const gl::Context * context,const gl::ImageIndex & imageIndex)122 gl::Error RenderbufferD3D::initializeContents(const gl::Context *context,
123 const gl::ImageIndex &imageIndex)
124 {
125 RenderTargetD3D *renderTarget = nullptr;
126 ANGLE_TRY(getRenderTarget(context, &renderTarget));
127 return mRenderer->initRenderTarget(renderTarget);
128 }
129
130 } // namespace rx
131