From 82b7daed9cc119d1cb373e73ba3240a2e085f3eb Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 30 Dec 2020 01:48:44 -0300
Subject: [PATCH] host_shaders: Add shaders to convert between depth and color
images
---
src/video_core/host_shaders/CMakeLists.txt | 2 ++
.../host_shaders/convert_depth_to_float.frag | 13 +++++++++++++
.../host_shaders/convert_float_to_depth.frag | 13 +++++++++++++
3 files changed, 28 insertions(+)
create mode 100644 src/video_core/host_shaders/convert_depth_to_float.frag
create mode 100644 src/video_core/host_shaders/convert_float_to_depth.frag
diff --git a/src/video_core/host_shaders/CMakeLists.txt b/src/video_core/host_shaders/CMakeLists.txt
index 338bf9eec0..faf298f1c2 100644
--- a/src/video_core/host_shaders/CMakeLists.txt
+++ b/src/video_core/host_shaders/CMakeLists.txt
@@ -1,6 +1,8 @@
set(SHADER_FILES
block_linear_unswizzle_2d.comp
block_linear_unswizzle_3d.comp
+ convert_depth_to_float.frag
+ convert_float_to_depth.frag
full_screen_triangle.vert
opengl_copy_bc4.comp
opengl_present.frag
diff --git a/src/video_core/host_shaders/convert_depth_to_float.frag b/src/video_core/host_shaders/convert_depth_to_float.frag
new file mode 100644
index 0000000000..624c585091
--- /dev/null
+++ b/src/video_core/host_shaders/convert_depth_to_float.frag
@@ -0,0 +1,13 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#version 450
+
+layout(binding = 0) uniform sampler2D depth_texture;
+layout(location = 0) out float output_color;
+
+void main() {
+ ivec2 coord = ivec2(gl_FragCoord.xy);
+ output_color = texelFetch(depth_texture, coord, 0).r;
+}
diff --git a/src/video_core/host_shaders/convert_float_to_depth.frag b/src/video_core/host_shaders/convert_float_to_depth.frag
new file mode 100644
index 0000000000..d86c795f4c
--- /dev/null
+++ b/src/video_core/host_shaders/convert_float_to_depth.frag
@@ -0,0 +1,13 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#version 450
+
+layout(binding = 0) uniform sampler2D color_texture;
+
+void main() {
+ ivec2 coord = ivec2(gl_FragCoord.xy);
+ float color = texelFetch(color_texture, coord, 0).r;
+ gl_FragDepth = color;
+}