host_shaders: Add shader to render a full screen triangle

This commit is contained in:
ReinUsesLisp 2020-12-30 01:44:09 -03:00
parent 59c46f9de9
commit 5169ce9fcd
2 changed files with 30 additions and 0 deletions

View file

@ -1,6 +1,7 @@
set(SHADER_FILES
block_linear_unswizzle_2d.comp
block_linear_unswizzle_3d.comp
full_screen_triangle.vert
opengl_present.frag
opengl_present.vert
pitch_unswizzle.comp

View file

@ -0,0 +1,29 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#version 450
#ifdef VULKAN
#define BEGIN_PUSH_CONSTANTS layout(push_constant) uniform PushConstants {
#define END_PUSH_CONSTANTS };
#define UNIFORM(n)
#else // ^^^ Vulkan ^^^ // vvv OpenGL vvv
#define BEGIN_PUSH_CONSTANTS
#define END_PUSH_CONSTANTS
#define UNIFORM(n) layout (location = n) uniform
#endif
BEGIN_PUSH_CONSTANTS
UNIFORM(0) vec2 tex_scale;
UNIFORM(1) vec2 tex_offset;
END_PUSH_CONSTANTS
layout(location = 0) out vec2 texcoord;
void main() {
float x = float((gl_VertexIndex & 1) << 2);
float y = float((gl_VertexIndex & 2) << 1);
gl_Position = vec4(x - 1.0, y - 1.0, 0.0, 1.0);
texcoord = fma(vec2(x, y) / 2.0, tex_scale, tex_offset);
}