cca3adb375
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
// Generated code, do not modify this file!
|
|
#pragma once
|
|
#include <mbgl/shaders/shader_source.hpp>
|
|
|
|
namespace mbgl {
|
|
namespace shaders {
|
|
|
|
template <>
|
|
struct ShaderSource<BuiltIn::RasterShader, gfx::Backend::Type::OpenGL> {
|
|
static constexpr const char* name = "RasterShader";
|
|
static constexpr const char* vertex = R"(layout (std140) uniform RasterDrawableUBO {
|
|
highp mat4 u_matrix;
|
|
};
|
|
layout (std140) uniform RasterEvaluatedPropsUBO {
|
|
highp vec3 u_spin_weights;
|
|
highp vec2 u_tl_parent;
|
|
highp float u_scale_parent;
|
|
highp float u_buffer_scale;
|
|
highp float u_fade_t;
|
|
highp float u_opacity;
|
|
highp float u_brightness_low;
|
|
highp float u_brightness_high;
|
|
highp float u_saturation_factor;
|
|
highp float u_contrast_factor;
|
|
highp float props_pad1;
|
|
highp float props_pad2;
|
|
};
|
|
|
|
layout (location = 0) in vec2 a_pos;
|
|
layout (location = 1) in vec2 a_texture_pos;
|
|
|
|
out vec2 v_pos0;
|
|
out vec2 v_pos1;
|
|
|
|
void main() {
|
|
gl_Position = u_matrix * vec4(a_pos, 0, 1);
|
|
// We are using Int16 for texture position coordinates to give us enough precision for
|
|
// fractional coordinates. We use 8192 to scale the texture coordinates in the buffer
|
|
// as an arbitrarily high number to preserve adequate precision when rendering.
|
|
// This is also the same value as the EXTENT we are using for our tile buffer pos coordinates,
|
|
// so math for modifying either is consistent.
|
|
v_pos0 = (((a_texture_pos / 8192.0) - 0.5) / u_buffer_scale ) + 0.5;
|
|
v_pos1 = (v_pos0 * u_scale_parent) + u_tl_parent;
|
|
}
|
|
)";
|
|
static constexpr const char* fragment = R"(layout (std140) uniform RasterEvaluatedPropsUBO {
|
|
highp vec3 u_spin_weights;
|
|
highp vec2 u_tl_parent;
|
|
highp float u_scale_parent;
|
|
highp float u_buffer_scale;
|
|
highp float u_fade_t;
|
|
highp float u_opacity;
|
|
highp float u_brightness_low;
|
|
highp float u_brightness_high;
|
|
highp float u_saturation_factor;
|
|
highp float u_contrast_factor;
|
|
highp float props_pad1;
|
|
highp float props_pad2;
|
|
};
|
|
uniform sampler2D u_image0;
|
|
uniform sampler2D u_image1;
|
|
|
|
in vec2 v_pos0;
|
|
in vec2 v_pos1;
|
|
|
|
void main() {
|
|
|
|
// read and cross-fade colors from the main and parent tiles
|
|
vec4 color0 = texture(u_image0, v_pos0);
|
|
vec4 color1 = texture(u_image1, v_pos1);
|
|
if (color0.a > 0.0) {
|
|
color0.rgb = color0.rgb / color0.a;
|
|
}
|
|
if (color1.a > 0.0) {
|
|
color1.rgb = color1.rgb / color1.a;
|
|
}
|
|
vec4 color = mix(color0, color1, u_fade_t);
|
|
color.a *= u_opacity;
|
|
vec3 rgb = color.rgb;
|
|
|
|
// spin
|
|
rgb = vec3(
|
|
dot(rgb, u_spin_weights.xyz),
|
|
dot(rgb, u_spin_weights.zxy),
|
|
dot(rgb, u_spin_weights.yzx));
|
|
|
|
// saturation
|
|
float average = (color.r + color.g + color.b) / 3.0;
|
|
rgb += (average - rgb) * u_saturation_factor;
|
|
|
|
// contrast
|
|
rgb = (rgb - 0.5) * u_contrast_factor + 0.5;
|
|
|
|
// brightness
|
|
vec3 u_high_vec = vec3(u_brightness_low, u_brightness_low, u_brightness_low);
|
|
vec3 u_low_vec = vec3(u_brightness_high, u_brightness_high, u_brightness_high);
|
|
|
|
fragColor = vec4(mix(u_high_vec, u_low_vec, rgb) * color.a, color.a);
|
|
|
|
#ifdef OVERDRAW_INSPECTOR
|
|
fragColor = vec4(1.0);
|
|
#endif
|
|
}
|
|
)";
|
|
};
|
|
|
|
} // namespace shaders
|
|
} // namespace mbgl
|