1 // Copyright 2018 Dolphin Emulator Project
2 // Licensed under GPLv2+
3 // Refer to the license.txt file included.
4
5 #include "VideoCommon/AbstractFramebuffer.h"
6 #include "VideoCommon/AbstractTexture.h"
7
AbstractFramebuffer(AbstractTexture * color_attachment,AbstractTexture * depth_attachment,AbstractTextureFormat color_format,AbstractTextureFormat depth_format,u32 width,u32 height,u32 layers,u32 samples)8 AbstractFramebuffer::AbstractFramebuffer(AbstractTexture* color_attachment,
9 AbstractTexture* depth_attachment,
10 AbstractTextureFormat color_format,
11 AbstractTextureFormat depth_format, u32 width, u32 height,
12 u32 layers, u32 samples)
13 : m_color_attachment(color_attachment), m_depth_attachment(depth_attachment),
14 m_color_format(color_format), m_depth_format(depth_format), m_width(width), m_height(height),
15 m_layers(layers), m_samples(samples)
16 {
17 }
18
19 AbstractFramebuffer::~AbstractFramebuffer() = default;
20
ValidateConfig(const AbstractTexture * color_attachment,const AbstractTexture * depth_attachment)21 bool AbstractFramebuffer::ValidateConfig(const AbstractTexture* color_attachment,
22 const AbstractTexture* depth_attachment)
23 {
24 // Must have at least a color or depth attachment.
25 if (!color_attachment && !depth_attachment)
26 return false;
27
28 // Currently we only expose a single mip level for render target textures.
29 // MSAA textures are not supported with mip levels on most backends, and it simplifies our
30 // handling of framebuffers.
31 auto CheckAttachment = [](const AbstractTexture* tex) {
32 return tex->GetConfig().IsRenderTarget() && tex->GetConfig().levels == 1;
33 };
34 if ((color_attachment && !CheckAttachment(color_attachment)) ||
35 (depth_attachment && !CheckAttachment(depth_attachment)))
36 {
37 return false;
38 }
39
40 // If both color and depth are present, their attributes must match.
41 if (color_attachment && depth_attachment)
42 {
43 if (color_attachment->GetConfig().width != depth_attachment->GetConfig().width ||
44 color_attachment->GetConfig().height != depth_attachment->GetConfig().height ||
45 color_attachment->GetConfig().layers != depth_attachment->GetConfig().layers ||
46 color_attachment->GetConfig().samples != depth_attachment->GetConfig().samples)
47 {
48 return false;
49 }
50 }
51
52 return true;
53 }
54
GetRect() const55 MathUtil::Rectangle<int> AbstractFramebuffer::GetRect() const
56 {
57 return MathUtil::Rectangle<int>(0, 0, static_cast<int>(m_width), static_cast<int>(m_height));
58 }
59