1 files changed, 160 insertions, 0 deletions
diff --git a/libs/hwui/Caches.cpp b/libs/hwui/Caches.cpp
new file mode 100644
index 0000000..40dd117
--- /dev/null
+++ b/libs/hwui/Caches.cpp
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "OpenGLRenderer"
+
+#include <utils/Log.h>
+
+#include "Caches.h"
+#include "Properties.h"
+
+namespace android {
+
+#ifdef USE_OPENGL_RENDERER
+using namespace uirenderer;
+ANDROID_SINGLETON_STATIC_INSTANCE(Caches);
+#endif
+
+namespace uirenderer {
+
+///////////////////////////////////////////////////////////////////////////////
+// Constructors/destructor
+///////////////////////////////////////////////////////////////////////////////
+
+Caches::Caches(): Singleton<Caches>(), blend(false), lastSrcMode(GL_ZERO),
+        lastDstMode(GL_ZERO), currentProgram(NULL) {
+    GLint maxTextureUnits;
+    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
+    if (maxTextureUnits < REQUIRED_TEXTURE_UNITS_COUNT) {
+        LOGW("At least %d texture units are required!", REQUIRED_TEXTURE_UNITS_COUNT);
+    }
+
+    glGenBuffers(1, &meshBuffer);
+    glBindBuffer(GL_ARRAY_BUFFER, meshBuffer);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(gMeshVertices), gMeshVertices, GL_STATIC_DRAW);
+
+    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
+
+    mCurrentBuffer = meshBuffer;
+    mRegionMesh = NULL;
+
+    mDebugLevel = readDebugLevel();
+    LOGD("Enabling debug mode %d", mDebugLevel);
+}
+
+Caches::~Caches() {
+    delete[] mRegionMesh;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Debug
+///////////////////////////////////////////////////////////////////////////////
+
+void Caches::dumpMemoryUsage() {
+    LOGD("Current memory usage / total memory usage (bytes):");
+    LOGD("  TextureCache         %8d / %8d", textureCache.getSize(), textureCache.getMaxSize());
+    LOGD("  LayerCache           %8d / %8d", layerCache.getSize(), layerCache.getMaxSize());
+    LOGD("  GradientCache        %8d / %8d", gradientCache.getSize(), gradientCache.getMaxSize());
+    LOGD("  PathCache            %8d / %8d", pathCache.getSize(), pathCache.getMaxSize());
+    LOGD("  TextDropShadowCache  %8d / %8d", dropShadowCache.getSize(),
+            dropShadowCache.getMaxSize());
+    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
+        const uint32_t size = fontRenderer.getFontRendererSize(i);
+        LOGD("  FontRenderer %d       %8d / %8d", i, size, size);
+    }
+    LOGD("Other:");
+    LOGD("  FboCache             %8d / %8d", fboCache.getSize(), fboCache.getMaxSize());
+    LOGD("  PatchCache           %8d / %8d", patchCache.getSize(), patchCache.getMaxSize());
+
+    uint32_t total = 0;
+    total += textureCache.getSize();
+    total += layerCache.getSize();
+    total += gradientCache.getSize();
+    total += pathCache.getSize();
+    total += dropShadowCache.getSize();
+    for (uint32_t i = 0; i < fontRenderer.getFontRendererCount(); i++) {
+        total += fontRenderer.getFontRendererSize(i);
+    }
+
+    LOGD("Total memory usage:");
+    LOGD("  %d bytes, %.2f MB", total, total / 1024.0f / 1024.0f);
+    LOGD("\n");
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Memory management
+///////////////////////////////////////////////////////////////////////////////
+
+void Caches::clearGarbage() {
+    textureCache.clearGarbage();
+    gradientCache.clearGarbage();
+    pathCache.clearGarbage();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// VBO
+///////////////////////////////////////////////////////////////////////////////
+
+void Caches::bindMeshBuffer() {
+    bindMeshBuffer(meshBuffer);
+}
+
+void Caches::bindMeshBuffer(const GLuint buffer) {
+    if (mCurrentBuffer != buffer) {
+        glBindBuffer(GL_ARRAY_BUFFER, buffer);
+        mCurrentBuffer = buffer;
+    }
+}
+
+void Caches::unbindMeshBuffer() {
+    if (mCurrentBuffer) {
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        mCurrentBuffer = 0;
+    }
+}
+
+TextureVertex* Caches::getRegionMesh() {
+    // Create the mesh, 2 triangles and 4 vertices per rectangle in the region
+    if (!mRegionMesh) {
+        mRegionMesh = new TextureVertex[REGION_MESH_QUAD_COUNT * 4];
+
+        uint16_t* regionIndices = new uint16_t[REGION_MESH_QUAD_COUNT * 6];
+        for (int i = 0; i < REGION_MESH_QUAD_COUNT; i++) {
+            uint16_t quad = i * 4;
+            int index = i * 6;
+            regionIndices[index    ] = quad;       // top-left
+            regionIndices[index + 1] = quad + 1;   // top-right
+            regionIndices[index + 2] = quad + 2;   // bottom-left
+            regionIndices[index + 3] = quad + 2;   // bottom-left
+            regionIndices[index + 4] = quad + 1;   // top-right
+            regionIndices[index + 5] = quad + 3;   // bottom-right
+        }
+
+        glGenBuffers(1, &mRegionMeshIndices);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
+        glBufferData(GL_ELEMENT_ARRAY_BUFFER, REGION_MESH_QUAD_COUNT * 6 * sizeof(uint16_t),
+                regionIndices, GL_STATIC_DRAW);
+
+        delete[] regionIndices;
+    } else {
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mRegionMeshIndices);
+    }
+
+    return mRegionMesh;
+}
+
+}; // namespace uirenderer
+}; // namespace android