gstreamer/ext/vulkan/shaders/view_convert.frag
Matthew Waters 615022ad93 vulkan: split vkfullscreenrender into two
Part 1 is a base class (vkvideofilter) that handles instance, device,
queue retrieval and holding that has been moved to the library
Part 2 is a fullscreenrenderquad that is still in the plugin that
performs all of the previous vulkan-specific functionality.
2019-11-28 23:27:21 +00:00

77 lines
2.3 KiB
GLSL

#version 450 core
#include "view_defines.h"
#include "swizzle.glsl"
layout(location = 0) in vec2 inTexCoord;
layout(set = 0, binding = 0) uniform ViewConvert {
ivec4 in_reorder_idx;
ivec4 out_reorder_idx;
vec4 tex_offset;
vec4 tex_scale;
ivec2 tex_size;
int output_type;
mat3 downmix[2];
};
layout(set = 0, binding = 1) uniform sampler2D l_tex;
layout(set = 0, binding = 2) uniform sampler2D r_tex;
layout(location = 0) out vec4 outColor0;
void main()
{
vec2 l_coord = inTexCoord * tex_scale.xy + tex_offset.xy;
vec2 r_coord = inTexCoord * tex_scale.zw + tex_offset.zw;
vec4 l = swizzle(texture(l_tex, l_coord), in_reorder_idx);
vec4 r = swizzle(texture(r_tex, r_coord), in_reorder_idx);
if (output_type == VIEW_MONO_DOWNMIX) {
vec3 lcol = l.rgb * l.a + vec3(1.0-l.a);
vec3 rcol = r.rgb * r.a + vec3(1.0-r.a);
if (l.a + r.a > 0.0) {
lcol = clamp (downmix[0] * lcol, 0.0, 1.0);
rcol = clamp (downmix[1] * rcol, 0.0, 1.0);
outColor0 = vec4 (lcol + rcol, 1.0);
} else {
outColor0 = vec4 (0.0);
}
} else if (output_type == VIEW_MONO_LEFT) {
outColor0 = swizzle(l, out_reorder_idx);
} else if (output_type == VIEW_MONO_RIGHT) {
outColor0 = swizzle(r, out_reorder_idx);
} else if (output_type == VIEW_SIDE_BY_SIDE) {
if (inTexCoord.x < 0.5) {
outColor0 = swizzle(l, out_reorder_idx);
} else {
outColor0 = swizzle(r, out_reorder_idx);
}
} else if (output_type == VIEW_TOP_BOTTOM) {
if (inTexCoord.y < 0.5) {
outColor0 = swizzle(l, out_reorder_idx);
} else {
outColor0 = swizzle(r, out_reorder_idx);
}
} else if (output_type == VIEW_COLUMN_INTERLEAVED) {
if (int(mod(l_coord.x * tex_size.x, 2.0)) == 0) {
outColor0 = swizzle(l, out_reorder_idx);
} else {
outColor0 = swizzle(r, out_reorder_idx);
}
} else if (output_type == VIEW_ROW_INTERLEAVED) {
if (int(mod(l_coord.y * tex_size.y, 2.0)) == 0) {
outColor0 = swizzle(l, out_reorder_idx);
} else {
outColor0 = swizzle(r, out_reorder_idx);
}
} else if (output_type == VIEW_CHECKERBOARD) {
if (int(mod(l_coord.x * tex_size.x, 2.0)) ==
int(mod(l_coord.y * tex_size.y, 2.0))) {
outColor0 = swizzle(l, out_reorder_idx);
} else {
outColor0 = swizzle(r, out_reorder_idx);
}
} else {
outColor0 = vec4(1.0, 0.0, 1.0, 1.0);
}
}