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/*
* 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.
*/
#ifndef ANDROID_HWUI_PATCH_H
#define ANDROID_HWUI_PATCH_H
#include <sys/types.h>
#include <GLES2/gl2.h>
#include <utils/Vector.h>
#include "Rect.h"
#include "Vertex.h"
#include "utils/Compare.h"
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// 9-patch structures
///////////////////////////////////////////////////////////////////////////////
/**
* Description of a patch.
*/
struct PatchDescription {
PatchDescription(): bitmapWidth(0), bitmapHeight(0), pixelWidth(0), pixelHeight(0),
xCount(0), yCount(0), emptyCount(0), colorKey(0) { }
PatchDescription(const float bitmapWidth, const float bitmapHeight,
const float pixelWidth, const float pixelHeight,
const uint32_t xCount, const uint32_t yCount,
const int8_t emptyCount, const uint32_t colorKey):
bitmapWidth(bitmapWidth), bitmapHeight(bitmapHeight),
pixelWidth(pixelWidth), pixelHeight(pixelHeight),
xCount(xCount), yCount(yCount),
emptyCount(emptyCount), colorKey(colorKey) { }
PatchDescription(const PatchDescription& description):
bitmapWidth(description.bitmapWidth), bitmapHeight(description.bitmapHeight),
pixelWidth(description.pixelWidth), pixelHeight(description.pixelHeight),
xCount(description.xCount), yCount(description.yCount),
emptyCount(description.emptyCount), colorKey(description.colorKey) { }
float bitmapWidth;
float bitmapHeight;
float pixelWidth;
float pixelHeight;
uint32_t xCount;
uint32_t yCount;
int8_t emptyCount;
uint32_t colorKey;
bool operator<(const PatchDescription& rhs) const {
LTE_FLOAT(bitmapWidth) {
LTE_FLOAT(bitmapHeight) {
LTE_FLOAT(pixelWidth) {
LTE_FLOAT(pixelHeight) {
LTE_INT(xCount) {
LTE_INT(yCount) {
LTE_INT(emptyCount) {
LTE_INT(colorKey) return false;
}
}
}
}
}
}
}
return false;
}
}; // struct PatchDescription
/**
* An OpenGL patch. This contains an array of vertices and an array of
* indices to render the vertices.
*/
struct Patch {
Patch(const uint32_t xCount, const uint32_t yCount, const int8_t emptyQuads = 0);
~Patch();
void updateVertices(const float bitmapWidth, const float bitmapHeight,
float left, float top, float right, float bottom,
const int32_t* xDivs, const int32_t* yDivs,
const uint32_t width, const uint32_t height,
const uint32_t colorKey = 0);
GLuint meshBuffer;
uint32_t verticesCount;
Vector<Rect> quads;
bool hasEmptyQuads;
private:
TextureVertex* mVertices;
void generateRow(TextureVertex*& vertex, float y1, float y2,
float v1, float v2, const int32_t xDivs[], uint32_t xCount,
float stretchX, float width, float bitmapWidth,
uint32_t& quadCount, const uint32_t colorKey);
void generateQuad(TextureVertex*& vertex,
float x1, float y1, float x2, float y2,
float u1, float v1, float u2, float v2,
uint32_t& quadCount, const uint32_t colorKey);
}; // struct Patch
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_PATCH_H
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