From 0ee310ebdc3f9abf78aaa88bdbf1eeaa3a8f0ebd Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Fri, 29 May 2020 04:21:57 -0300
Subject: [PATCH] gl_device: Avoid devices with CAVEAT_SUPPORT on ASTC

This avoids using Nvidia's ASTC decoder on OpenGL.
The last time it was profiled, it was slower than yuzu's decoder.

While we are at it, fix a bug in the texture cache when native ASTC is
not supported.
---
 src/video_core/renderer_opengl/gl_device.cpp  | 24 ++++++++++++++-----
 .../renderer_opengl/gl_texture_cache.cpp      |  3 +--
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
index 466a911db..ff35d362d 100644
--- a/src/video_core/renderer_opengl/gl_device.cpp
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -133,6 +133,7 @@ std::array<Device::BaseBindings, Tegra::Engines::MaxShaderTypes> BuildBaseBindin
 }
 
 bool IsASTCSupported() {
+    static constexpr std::array targets = {GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY};
     static constexpr std::array formats = {
         GL_COMPRESSED_RGBA_ASTC_4x4_KHR,           GL_COMPRESSED_RGBA_ASTC_5x4_KHR,
         GL_COMPRESSED_RGBA_ASTC_5x5_KHR,           GL_COMPRESSED_RGBA_ASTC_6x5_KHR,
@@ -149,12 +150,23 @@ bool IsASTCSupported() {
         GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR,  GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR,
         GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR,
     };
-    return std::find_if_not(formats.begin(), formats.end(), [](GLenum format) {
-               GLint supported;
-               glGetInternalformativ(GL_TEXTURE_2D, format, GL_INTERNALFORMAT_SUPPORTED, 1,
-                                     &supported);
-               return supported == GL_TRUE;
-           }) == formats.end();
+    static constexpr std::array required_support = {
+        GL_VERTEX_TEXTURE,   GL_TESS_CONTROL_TEXTURE, GL_TESS_EVALUATION_TEXTURE,
+        GL_GEOMETRY_TEXTURE, GL_FRAGMENT_TEXTURE,     GL_COMPUTE_TEXTURE,
+    };
+
+    for (const GLenum target : targets) {
+        for (const GLenum format : formats) {
+            for (const GLenum support : required_support) {
+                GLint value;
+                glGetInternalformativ(GL_TEXTURE_2D, format, support, 1, &value);
+                if (value != GL_FULL_SUPPORT) {
+                    return false;
+                }
+            }
+        }
+    }
+    return true;
 }
 
 } // Anonymous namespace
diff --git a/src/video_core/renderer_opengl/gl_texture_cache.cpp b/src/video_core/renderer_opengl/gl_texture_cache.cpp
index 4faa8b90c..57db5a08b 100644
--- a/src/video_core/renderer_opengl/gl_texture_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_texture_cache.cpp
@@ -404,8 +404,7 @@ View CachedSurface::CreateViewInner(const ViewParams& view_key, const bool is_pr
 
 CachedSurfaceView::CachedSurfaceView(CachedSurface& surface, const ViewParams& params,
                                      bool is_proxy)
-    : VideoCommon::ViewBase(params), surface{surface},
-      format{GetFormatTuple(surface.GetSurfaceParams().pixel_format).internal_format},
+    : VideoCommon::ViewBase(params), surface{surface}, format{surface.internal_format},
       target{GetTextureTarget(params.target)}, is_proxy{is_proxy} {
     if (!is_proxy) {
         main_view = CreateTextureView();