From 0032821864a679d09c252249c74d1bf8deef9baa Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 10 Apr 2019 15:56:12 -0300
Subject: gl_device: Implement interface and add uniform offset alignment

---
 src/video_core/renderer_opengl/gl_device.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/video_core/renderer_opengl/gl_device.cpp

(limited to 'src/video_core/renderer_opengl/gl_device.cpp')

diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
new file mode 100644
index 000000000..b7ca3dca4
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -0,0 +1,27 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstddef>
+#include <glad/glad.h>
+
+#include "video_core/renderer_opengl/gl_device.h"
+
+namespace OpenGL {
+
+namespace {
+template <typename T>
+T GetInteger(GLenum pname) {
+    GLint temporary;
+    glGetIntegerv(pname, &temporary);
+    return static_cast<T>(temporary);
+}
+} // Anonymous namespace
+
+Device::Device() = default;
+
+void Device::Initialize() {
+    uniform_buffer_alignment = GetInteger<std::size_t>(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT);
+}
+
+} // namespace OpenGL
-- 
cgit v1.2.3


From f15c59a164a7c4deafb77e9fc698cdf9a08691ce Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 10 Apr 2019 18:03:52 -0300
Subject: gl_shader_decompiler: Use variable AOFFI on supported hardware

---
 src/video_core/renderer_opengl/gl_device.cpp | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

(limited to 'src/video_core/renderer_opengl/gl_device.cpp')

diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
index b7ca3dca4..b6d9e0ddb 100644
--- a/src/video_core/renderer_opengl/gl_device.cpp
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -5,6 +5,7 @@
 #include <cstddef>
 #include <glad/glad.h>
 
+#include "common/logging/log.h"
 #include "video_core/renderer_opengl/gl_device.h"
 
 namespace OpenGL {
@@ -18,10 +19,27 @@ T GetInteger(GLenum pname) {
 }
 } // Anonymous namespace
 
-Device::Device() = default;
-
-void Device::Initialize() {
+Device::Device() {
     uniform_buffer_alignment = GetInteger<std::size_t>(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT);
+    has_variable_aoffi = TestVariableAoffi();
+}
+
+bool Device::TestVariableAoffi() {
+    const GLchar* AOFFI_TEST = R"(#version 430 core
+uniform sampler2D tex;
+uniform ivec2 variable_offset;
+void main() {
+    gl_Position = textureOffset(tex, vec2(0), variable_offset);
+}
+)";
+    const GLuint shader{glCreateShaderProgramv(GL_VERTEX_SHADER, 1, &AOFFI_TEST)};
+    GLint link_status{};
+    glGetProgramiv(shader, GL_LINK_STATUS, &link_status);
+    glDeleteProgram(shader);
+
+    const bool supported{link_status == GL_TRUE};
+    LOG_INFO(Render_OpenGL, "Renderer_VariableAOFFI: {}", supported);
+    return supported;
 }
 
 } // namespace OpenGL
-- 
cgit v1.2.3