Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / cc / base / tiling_data.cc

diff --git a/src/cc/base/tiling_data.cc b/src/cc/base/tiling_data.cc
index 8baf029..a52c940 100644 (file)
--- a/src/cc/base/tiling_data.cc
+++ b/src/cc/base/tiling_data.cc
@@ -28,28 +28,26 @@ TilingData::TilingData()
   RecomputeNumTiles();
 }
 
-TilingData::TilingData(
-    const gfx::Size& max_texture_size,
-    const gfx::Size& total_size,
-    bool has_border_texels)
+TilingData::TilingData(const gfx::Size& max_texture_size,
+                       const gfx::Rect& tiling_rect,
+                       bool has_border_texels)
     : max_texture_size_(max_texture_size),
-      total_size_(total_size),
+      tiling_rect_(tiling_rect),
       border_texels_(has_border_texels ? 1 : 0) {
   RecomputeNumTiles();
 }
 
-TilingData::TilingData(
-    const gfx::Size& max_texture_size,
-    const gfx::Size& total_size,
-    int border_texels)
+TilingData::TilingData(const gfx::Size& max_texture_size,
+                       const gfx::Rect& tiling_rect,
+                       int border_texels)
     : max_texture_size_(max_texture_size),
-      total_size_(total_size),
+      tiling_rect_(tiling_rect),
       border_texels_(border_texels) {
   RecomputeNumTiles();
 }
 
-void TilingData::SetTotalSize(const gfx::Size& total_size) {
-  total_size_ = total_size;
+void TilingData::SetTilingRect(const gfx::Rect& tiling_rect) {
+  tiling_rect_ = tiling_rect;
   RecomputeNumTiles();
 }
 
@@ -72,6 +70,8 @@ int TilingData::TileXIndexFromSrcCoord(int src_position) const {
   if (num_tiles_x_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.x();
+
   DCHECK_GT(max_texture_size_.width() - 2 * border_texels_, 0);
   int x = (src_position - border_texels_) /
       (max_texture_size_.width() - 2 * border_texels_);
@@ -82,6 +82,8 @@ int TilingData::TileYIndexFromSrcCoord(int src_position) const {
   if (num_tiles_y_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.y();
+
   DCHECK_GT(max_texture_size_.height() - 2 * border_texels_, 0);
   int y = (src_position - border_texels_) /
       (max_texture_size_.height() - 2 * border_texels_);
@@ -92,6 +94,8 @@ int TilingData::FirstBorderTileXIndexFromSrcCoord(int src_position) const {
   if (num_tiles_x_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.x();
+
   DCHECK_GT(max_texture_size_.width() - 2 * border_texels_, 0);
   int inner_tile_size = max_texture_size_.width() - 2 * border_texels_;
   int x = (src_position - 2 * border_texels_) / inner_tile_size;
@@ -102,6 +106,8 @@ int TilingData::FirstBorderTileYIndexFromSrcCoord(int src_position) const {
   if (num_tiles_y_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.y();
+
   DCHECK_GT(max_texture_size_.height() - 2 * border_texels_, 0);
   int inner_tile_size = max_texture_size_.height() - 2 * border_texels_;
   int y = (src_position - 2 * border_texels_) / inner_tile_size;
@@ -112,6 +118,8 @@ int TilingData::LastBorderTileXIndexFromSrcCoord(int src_position) const {
   if (num_tiles_x_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.x();
+
   DCHECK_GT(max_texture_size_.width() - 2 * border_texels_, 0);
   int inner_tile_size = max_texture_size_.width() - 2 * border_texels_;
   int x = src_position / inner_tile_size;
@@ -122,6 +130,8 @@ int TilingData::LastBorderTileYIndexFromSrcCoord(int src_position) const {
   if (num_tiles_y_ <= 1)
     return 0;
 
+  src_position -= tiling_rect_.y();
+
   DCHECK_GT(max_texture_size_.height() - 2 * border_texels_, 0);
   int inner_tile_size = max_texture_size_.height() - 2 * border_texels_;
   int y = src_position / inner_tile_size;
@@ -130,7 +140,7 @@ int TilingData::LastBorderTileYIndexFromSrcCoord(int src_position) const {
 
 gfx::Rect TilingData::ExpandRectToTileBoundsWithBorders(
     const gfx::Rect rect) const {
-  if (!rect.Intersects(gfx::Rect(total_size_)) || has_empty_bounds())
+  if (!rect.Intersects(tiling_rect_) || has_empty_bounds())
     return gfx::Rect();
   int index_x = FirstBorderTileXIndexFromSrcCoord(rect.x());
   int index_y = FirstBorderTileYIndexFromSrcCoord(rect.y());
@@ -149,38 +159,36 @@ gfx::Rect TilingData::TileBounds(int i, int j) const {
   AssertTile(i, j);
   int max_texture_size_x = max_texture_size_.width() - 2 * border_texels_;
   int max_texture_size_y = max_texture_size_.height() - 2 * border_texels_;
-  int total_size_x = total_size_.width();
-  int total_size_y = total_size_.height();
 
-  int lo_x = max_texture_size_x * i;
+  int lo_x = tiling_rect_.x() + max_texture_size_x * i;
   if (i != 0)
     lo_x += border_texels_;
 
-  int lo_y = max_texture_size_y * j;
+  int lo_y = tiling_rect_.y() + max_texture_size_y * j;
   if (j != 0)
     lo_y += border_texels_;
 
-  int hi_x = max_texture_size_x * (i + 1) + border_texels_;
+  int hi_x = tiling_rect_.x() + max_texture_size_x * (i + 1) + border_texels_;
   if (i + 1 == num_tiles_x_)
     hi_x += border_texels_;
 
-  int hi_y = max_texture_size_y * (j + 1) + border_texels_;
+  int hi_y = tiling_rect_.y() + max_texture_size_y * (j + 1) + border_texels_;
   if (j + 1 == num_tiles_y_)
     hi_y += border_texels_;
 
-  hi_x = std::min(hi_x, total_size_x);
-  hi_y = std::min(hi_y, total_size_y);
+  hi_x = std::min(hi_x, tiling_rect_.right());
+  hi_y = std::min(hi_y, tiling_rect_.bottom());
 
   int x = lo_x;
   int y = lo_y;
   int width = hi_x - lo_x;
   int height = hi_y - lo_y;
-  DCHECK_GE(x, 0);
-  DCHECK_GE(y, 0);
+  DCHECK_GE(x, tiling_rect_.x());
+  DCHECK_GE(y, tiling_rect_.y());
   DCHECK_GE(width, 0);
   DCHECK_GE(height, 0);
-  DCHECK_LE(x, total_size_.width());
-  DCHECK_LE(y, total_size_.height());
+  DCHECK_LE(x, tiling_rect_.right());
+  DCHECK_LE(y, tiling_rect_.bottom());
   return gfx::Rect(x, y, width, height);
 }
 
@@ -188,28 +196,26 @@ gfx::Rect TilingData::TileBoundsWithBorder(int i, int j) const {
   AssertTile(i, j);
   int max_texture_size_x = max_texture_size_.width() - 2 * border_texels_;
   int max_texture_size_y = max_texture_size_.height() - 2 * border_texels_;
-  int total_size_x = total_size_.width();
-  int total_size_y = total_size_.height();
 
-  int lo_x = max_texture_size_x * i;
-  int lo_y = max_texture_size_y * j;
+  int lo_x = tiling_rect_.x() + max_texture_size_x * i;
+  int lo_y = tiling_rect_.y() + max_texture_size_y * j;
 
   int hi_x = lo_x + max_texture_size_x + 2 * border_texels_;
   int hi_y = lo_y + max_texture_size_y + 2 * border_texels_;
 
-  hi_x = std::min(hi_x, total_size_x);
-  hi_y = std::min(hi_y, total_size_y);
+  hi_x = std::min(hi_x, tiling_rect_.right());
+  hi_y = std::min(hi_y, tiling_rect_.bottom());
 
   int x = lo_x;
   int y = lo_y;
   int width = hi_x - lo_x;
   int height = hi_y - lo_y;
-  DCHECK_GE(x, 0);
-  DCHECK_GE(y, 0);
+  DCHECK_GE(x, tiling_rect_.x());
+  DCHECK_GE(y, tiling_rect_.y());
   DCHECK_GE(width, 0);
   DCHECK_GE(height, 0);
-  DCHECK_LE(x, total_size_.width());
-  DCHECK_LE(y, total_size_.height());
+  DCHECK_LE(x, tiling_rect_.right());
+  DCHECK_LE(y, tiling_rect_.bottom());
   return gfx::Rect(x, y, width, height);
 }
 
@@ -221,6 +227,8 @@ int TilingData::TilePositionX(int x_index) const {
   if (x_index != 0)
     pos += border_texels_;
 
+  pos += tiling_rect_.x();
+
   return pos;
 }
 
@@ -232,6 +240,8 @@ int TilingData::TilePositionY(int y_index) const {
   if (y_index != 0)
     pos += border_texels_;
 
+  pos += tiling_rect_.y();
+
   return pos;
 }
 
@@ -240,13 +250,13 @@ int TilingData::TileSizeX(int x_index) const {
   DCHECK_LT(x_index, num_tiles_x_);
 
   if (!x_index && num_tiles_x_ == 1)
-    return total_size_.width();
+    return tiling_rect_.width();
   if (!x_index && num_tiles_x_ > 1)
     return max_texture_size_.width() - border_texels_;
   if (x_index < num_tiles_x_ - 1)
     return max_texture_size_.width() - 2 * border_texels_;
   if (x_index == num_tiles_x_ - 1)
-    return total_size_.width() - TilePositionX(x_index);
+    return tiling_rect_.right() - TilePositionX(x_index);
 
   NOTREACHED();
   return 0;
@@ -257,13 +267,13 @@ int TilingData::TileSizeY(int y_index) const {
   DCHECK_LT(y_index, num_tiles_y_);
 
   if (!y_index && num_tiles_y_ == 1)
-    return total_size_.height();
+    return tiling_rect_.height();
   if (!y_index && num_tiles_y_ > 1)
     return max_texture_size_.height() - border_texels_;
   if (y_index < num_tiles_y_ - 1)
     return max_texture_size_.height() - 2 * border_texels_;
   if (y_index == num_tiles_y_ - 1)
-    return total_size_.height() - TilePositionY(y_index);
+    return tiling_rect_.bottom() - TilePositionY(y_index);
 
   NOTREACHED();
   return 0;
@@ -278,9 +288,9 @@ gfx::Vector2d TilingData::TextureOffset(int x_index, int y_index) const {
 
 void TilingData::RecomputeNumTiles() {
   num_tiles_x_ = ComputeNumTiles(
-      max_texture_size_.width(), total_size_.width(), border_texels_);
+      max_texture_size_.width(), tiling_rect_.width(), border_texels_);
   num_tiles_y_ = ComputeNumTiles(
-      max_texture_size_.height(), total_size_.height(), border_texels_);
+      max_texture_size_.height(), tiling_rect_.height(), border_texels_);
 }
 
 TilingData::BaseIterator::BaseIterator(const TilingData* tiling_data)
@@ -301,7 +311,7 @@ TilingData::Iterator::Iterator(const TilingData* tiling_data,
   }
 
   gfx::Rect rect(tiling_rect);
-  rect.Intersect(gfx::Rect(tiling_data_->total_size()));
+  rect.Intersect(tiling_data_->tiling_rect());
 
   gfx::Rect top_left_tile;
   if (include_borders) {
@@ -358,11 +368,10 @@ TilingData::DifferenceIterator::DifferenceIterator(
     return;
   }
 
-  gfx::Rect bounds(tiling_data_->total_size());
   gfx::Rect consider(consider_rect);
   gfx::Rect ignore(ignore_rect);
-  consider.Intersect(bounds);
-  ignore.Intersect(bounds);
+  consider.Intersect(tiling_data_->tiling_rect());
+  ignore.Intersect(tiling_data_->tiling_rect());
   if (consider.IsEmpty()) {
     done();
     return;
@@ -466,12 +475,11 @@ TilingData::SpiralDifferenceIterator::SpiralDifferenceIterator(
     return;
   }
 
-  gfx::Rect bounds(tiling_data_->total_size());
   gfx::Rect consider(consider_rect);
   gfx::Rect ignore(ignore_rect);
   gfx::Rect center(center_rect);
-  consider.Intersect(bounds);
-  ignore.Intersect(bounds);
+  consider.Intersect(tiling_data_->tiling_rect());
+  ignore.Intersect(tiling_data_->tiling_rect());
   if (consider.IsEmpty()) {
     done();
     return;
@@ -508,18 +516,18 @@ TilingData::SpiralDifferenceIterator::SpiralDifferenceIterator(
 
   // Determine around left, such that it is between -1 and num_tiles_x.
   int around_left = 0;
-  if (center.x() < 0 || center.IsEmpty())
+  if (center.x() < tiling_data->tiling_rect().x() || center.IsEmpty())
     around_left = -1;
-  else if (center.x() > tiling_data->total_size().width())
+  else if (center.x() > tiling_data->tiling_rect().right())
     around_left = tiling_data->num_tiles_x();
   else
     around_left = tiling_data->FirstBorderTileXIndexFromSrcCoord(center.x());
 
   // Determine around top, such that it is between -1 and num_tiles_y.
   int around_top = 0;
-  if (center.y() < 0 || center.IsEmpty())
+  if (center.y() < tiling_data->tiling_rect().y() || center.IsEmpty())
     around_top = -1;
-  else if (center.y() > tiling_data->total_size().height())
+  else if (center.y() > tiling_data->tiling_rect().bottom())
     around_top = tiling_data->num_tiles_y();
   else
     around_top = tiling_data->FirstBorderTileYIndexFromSrcCoord(center.y());
@@ -527,9 +535,9 @@ TilingData::SpiralDifferenceIterator::SpiralDifferenceIterator(
   // Determine around right, such that it is between -1 and num_tiles_x.
   int right_src_coord = center.right() - 1;
   int around_right = 0;
-  if (right_src_coord < 0 || center.IsEmpty()) {
+  if (right_src_coord < tiling_data->tiling_rect().x() || center.IsEmpty()) {
     around_right = -1;
-  } else if (right_src_coord > tiling_data->total_size().width()) {
+  } else if (right_src_coord > tiling_data->tiling_rect().right()) {
     around_right = tiling_data->num_tiles_x();
   } else {
     around_right =
@@ -539,9 +547,9 @@ TilingData::SpiralDifferenceIterator::SpiralDifferenceIterator(
   // Determine around bottom, such that it is between -1 and num_tiles_y.
   int bottom_src_coord = center.bottom() - 1;
   int around_bottom = 0;
-  if (bottom_src_coord < 0 || center.IsEmpty()) {
+  if (bottom_src_coord < tiling_data->tiling_rect().y() || center.IsEmpty()) {
     around_bottom = -1;
-  } else if (bottom_src_coord > tiling_data->total_size().height()) {
+  } else if (bottom_src_coord > tiling_data->tiling_rect().bottom()) {
     around_bottom = tiling_data->num_tiles_y();
   } else {
     around_bottom =