[Shadows] Add shadow vertex generation code and shaders [8/n]
Bug: 136561771
Test: go/wm-smoke
Change-Id: I13e627a707d6d7a10bbd0ea6cc26bcb5c5bc9ab8
diff --git a/libs/renderengine/gl/GLESRenderEngine.cpp b/libs/renderengine/gl/GLESRenderEngine.cpp
index d1378d5..0748dfb 100644
--- a/libs/renderengine/gl/GLESRenderEngine.cpp
+++ b/libs/renderengine/gl/GLESRenderEngine.cpp
@@ -46,6 +46,7 @@
#include "GLExtensions.h"
#include "GLFramebuffer.h"
#include "GLImage.h"
+#include "GLShadowVertexGenerator.h"
#include "Program.h"
#include "ProgramCache.h"
@@ -1046,7 +1047,8 @@
setSourceDataSpace(layer.sourceDataspace);
if (layer.shadow.length > 0.0f) {
- // handle shadows
+ handleShadow(layer.geometry.boundaries, layer.geometry.roundedCornersRadius,
+ layer.shadow);
}
// We only want to do a special handling for rounded corners when having rounded corners
// is the only reason it needs to turn on blending, otherwise, we handle it like the
@@ -1561,6 +1563,35 @@
}
}
+void GLESRenderEngine::handleShadow(const FloatRect& casterRect, float casterCornerRadius,
+ const ShadowSettings& settings) {
+ ATRACE_CALL();
+ const float casterZ = settings.length / 2.0f;
+ const GLShadowVertexGenerator shadows(casterRect, casterCornerRadius, casterZ,
+ settings.casterIsTranslucent, settings.ambientColor,
+ settings.spotColor, settings.lightPos,
+ settings.lightRadius);
+
+ // setup mesh for both shadows
+ Mesh mesh = Mesh::Builder()
+ .setPrimitive(Mesh::TRIANGLES)
+ .setVertices(shadows.getVertexCount(), 2 /* size */)
+ .setShadowAttrs()
+ .setIndices(shadows.getIndexCount())
+ .build();
+
+ Mesh::VertexArray<vec2> position = mesh.getPositionArray<vec2>();
+ Mesh::VertexArray<vec4> shadowColor = mesh.getShadowColorArray<vec4>();
+ Mesh::VertexArray<vec3> shadowParams = mesh.getShadowParamsArray<vec3>();
+ shadows.fillVertices(position, shadowColor, shadowParams);
+ shadows.fillIndices(mesh.getIndicesArray());
+
+ mState.cornerRadius = 0.0f;
+ mState.drawShadows = true;
+ drawMesh(mesh);
+ mState.drawShadows = false;
+}
+
} // namespace gl
} // namespace renderengine
} // namespace android