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Add Bug to Disable "LoadOp" clear renderpass in vulkan

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This optimisation doesn't work on PowerVR's Vulkan implementation. We
(incorrectly) disallow Framebuffer objects to be used with a different
load or store op than that which they were created with, despite the
spec allowing such.

This fixes the windwaker intro "smearing"
This commit is contained in:
Jonathan Hamilton 2017-06-19 18:46:17 -07:00
parent 11057649ee
commit 62e8d25cd1
3 changed files with 17 additions and 1 deletions
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6
Source/Core/VideoBackends/Vulkan/Renderer.cpp
View File

@ -376,6 +376,12 @@ void Renderer::ClearScreen(const EFBRectangle& rc, bool color_enable, bool alpha
// If we're not in a render pass (start of the frame), we can use a clear render pass
// to discard the data, rather than loading and then clearing.
bool use_clear_render_pass = (color_enable && alpha_enable && z_enable);
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_CLEAR_LOADOP_RENDERPASS))
{
// This path cannot be used if the driver implementation doesn't guarantee pixels with no drawn
// geomerty in "this" renderpass won't be cleared
use_clear_render_pass = false;
}
if (StateTracker::GetInstance()->InRenderPass())
{
// Prefer not to end a render pass just to do a clear.

5
Source/Core/VideoCommon/DriverDetails.cpp
View File

@ -103,7 +103,10 @@ static BugInfo m_known_bugs[] = {
{API_OPENGL, OS_LINUX, VENDOR_MESA, DRIVER_NOUVEAU, Family::UNKNOWN,
BUG_SHARED_CONTEXT_SHADER_COMPILATION, -1.0, -1.0, true},
{API_VULKAN, OS_ALL, VENDOR_NVIDIA, DRIVER_NVIDIA, Family::UNKNOWN,
BUG_BROKEN_MSAA_VKCMDCLEARATTACHMENTS, -1.0, -1.0, true}};
BUG_BROKEN_MSAA_VKCMDCLEARATTACHMENTS, -1.0, -1.0, true},
{API_VULKAN, OS_ALL, VENDOR_IMGTEC, DRIVER_IMGTEC, Family::UNKNOWN,
BUG_BROKEN_CLEAR_LOADOP_RENDERPASS, -1.0, -1.0, true},
};
static std::map<Bug, BugInfo> m_bugs;

7
Source/Core/VideoCommon/DriverDetails.h
View File

@ -259,6 +259,13 @@ enum Bug
// Ended version: -1
// Seems to only occur when the top of the clear rect is non-zero.
BUG_BROKEN_MSAA_VKCMDCLEARATTACHMENTS,
// BUG: Some vulkan implementations don't like the 'clear' loadop renderpass.
// For example, the ImgTec VK driver fails if you try to use a framebuffer with a different
// load/store op than that which it was created with, despite the spec saying they should be
// compatible.
// Started Version: 1.7
// Ended Version: 1.10
BUG_BROKEN_CLEAR_LOADOP_RENDERPASS,
};
// Initializes our internal vendor, device family, and driver version