1 files changed, 88 insertions, 0 deletions
diff --git a/src/mbgl/renderer/painters/painter_raster.cpp b/src/mbgl/renderer/painters/painter_raster.cpp
new file mode 100644
index 0000000000..5d98fcf860
--- /dev/null
+++ b/src/mbgl/renderer/painters/painter_raster.cpp
@@ -0,0 +1,88 @@
+#include <mbgl/renderer/painter.hpp>
+#include <mbgl/renderer/paint_parameters.hpp>
+#include <mbgl/renderer/render_tile.hpp>
+#include <mbgl/renderer/buckets/raster_bucket.hpp>
+#include <mbgl/renderer/layers/render_raster_layer.hpp>
+#include <mbgl/style/layers/raster_layer_impl.hpp>
+#include <mbgl/programs/programs.hpp>
+#include <mbgl/programs/raster_program.hpp>
+
+namespace mbgl {
+
+using namespace style;
+
+static float saturationFactor(float saturation) {
+    if (saturation > 0) {
+        return 1 - 1 / (1.001 - saturation);
+    } else {
+        return -saturation;
+    }
+}
+
+static float contrastFactor(float contrast) {
+    if (contrast > 0) {
+        return 1 / (1 - contrast);
+    } else {
+        return 1 + contrast;
+    }
+}
+
+static std::array<float, 3> spinWeights(float spin) {
+    spin *= util::DEG2RAD;
+    float s = std::sin(spin);
+    float c = std::cos(spin);
+    std::array<float, 3> spin_weights = {{
+        (2 * c + 1) / 3,
+        (-std::sqrt(3.0f) * s - c + 1) / 3,
+        (std::sqrt(3.0f) * s - c + 1) / 3
+    }};
+    return spin_weights;
+}
+
+void Painter::renderRaster(PaintParameters& parameters,
+                           RasterBucket& bucket,
+                           const RenderRasterLayer& layer,
+                           const RenderTile& tile) {
+    if (pass != RenderPass::Translucent)
+        return;
+    if (!bucket.hasData())
+        return;
+
+    const RasterPaintProperties::Evaluated& properties = layer.evaluated;
+    const RasterProgram::PaintPropertyBinders paintAttributeData(properties, 0);
+
+    assert(bucket.texture);
+    context.bindTexture(*bucket.texture, 0, gl::TextureFilter::Linear);
+    context.bindTexture(*bucket.texture, 1, gl::TextureFilter::Linear);
+
+    parameters.programs.raster.draw(
+        context,
+        gl::Triangles(),
+        depthModeForSublayer(0, gl::DepthMode::ReadOnly),
+        gl::StencilMode::disabled(),
+        colorModeForRenderPass(),
+        RasterProgram::UniformValues {
+            uniforms::u_matrix::Value{ tile.matrix },
+            uniforms::u_image0::Value{ 0 },
+            uniforms::u_image1::Value{ 1 },
+            uniforms::u_opacity::Value{ properties.get<RasterOpacity>() },
+            uniforms::u_fade_t::Value{ 1 },
+            uniforms::u_brightness_low::Value{ properties.get<RasterBrightnessMin>() },
+            uniforms::u_brightness_high::Value{ properties.get<RasterBrightnessMax>() },
+            uniforms::u_saturation_factor::Value{ saturationFactor(properties.get<RasterSaturation>()) },
+            uniforms::u_contrast_factor::Value{ contrastFactor(properties.get<RasterContrast>()) },
+            uniforms::u_spin_weights::Value{ spinWeights(properties.get<RasterHueRotate>()) },
+            uniforms::u_buffer_scale::Value{ 1.0f },
+            uniforms::u_scale_parent::Value{ 1.0f },
+            uniforms::u_tl_parent::Value{ std::array<float, 2> {{ 0.0f, 0.0f }} },
+        },
+        rasterVertexBuffer,
+        quadTriangleIndexBuffer,
+        rasterSegments,
+        paintAttributeData,
+        properties,
+        state.getZoom()
+    );
+}
+
+} // namespace mbgl