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Add RotSprite algorithm for PixelsMovement (issue 121)

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* Added app::RotationAlgorithm enum.
* Added app::ISelectionSettings::get/setRotationAlgorithm.
* Added app::SelectionSettingsObserver::onSetRotationAlgorithm.
* Added raster::image_rotsprite() function.
* Added ContextBar::RotAlgorithmField class to select the rotation algorithm.
* Now the mask isn't updated constantly on PixelsMovement::moveImage8),
  in this way when the user release the mouse button is when we recalculate
  the mask (to get better performance when the user is scaling/rotating
  the image).
This commit is contained in:
David Capello 2013-12-29 17:11:56 -03:00
parent 12a46f5ca3
commit 02597dcdec
13 changed files with 456 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
src/app/settings/rotation_algorithm.h Normal file
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@ -0,0 +1,34 @@
/* Aseprite
* Copyright (C) 2001-2013 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef APP_SETTINGS_ROTATION_ALGORITHM_H_INCLUDED
#define APP_SETTINGS_ROTATION_ALGORITHM_H_INCLUDED
namespace app {
enum RotationAlgorithm {
kFastRotationAlgorithm,
kRotSpriteRotationAlgorithm,
kFirstRotationAlgorithm = kFastRotationAlgorithm,
kLastRotationAlgorithm = kRotSpriteRotationAlgorithm
};
} // namespace app
#endif

3
src/app/settings/settings.h
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@ -21,6 +21,7 @@
#include "app/color.h"
#include "app/settings/ink_type.h"
#include "app/settings/rotation_algorithm.h"
#include "gfx/point.h"
#include "gfx/rect.h"
#include "raster/pen_type.h"
@ -126,8 +127,10 @@ namespace app {
// Mask color used during a move operation
virtual app::Color getMoveTransparentColor() = 0;
virtual RotationAlgorithm getRotationAlgorithm() = 0;
virtual void setMoveTransparentColor(app::Color color) = 0;
virtual void setRotationAlgorithm(RotationAlgorithm algorithm) = 0;
virtual void addObserver(SelectionSettingsObserver* observer) = 0;
virtual void removeObserver(SelectionSettingsObserver* observer) = 0;

2
src/app/settings/settings_observers.h
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@ -21,6 +21,7 @@
#include "app/color.h"
#include "app/settings/ink_type.h"
#include "app/settings/rotation_algorithm.h"
#include "raster/pen_type.h"
namespace app {
@ -57,6 +58,7 @@ namespace app {
virtual ~SelectionSettingsObserver() {}
virtual void onSetMoveTransparentColor(app::Color newColor) {}
virtual void onSetRotationAlgorithm(RotationAlgorithm algorithm) {}
};
class GlobalSettingsObserver {

32
src/app/settings/ui_settings_impl.cpp
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@ -149,15 +149,18 @@ public:
UISelectionSettingsImpl();
~UISelectionSettingsImpl();
void setMoveTransparentColor(app::Color color);
app::Color getMoveTransparentColor();
RotationAlgorithm getRotationAlgorithm();
void setMoveTransparentColor(app::Color color);
void setRotationAlgorithm(RotationAlgorithm algorithm);
void addObserver(SelectionSettingsObserver* observer);
void removeObserver(SelectionSettingsObserver* observer);
private:
app::Color m_moveTransparentColor;
RotationAlgorithm m_rotationAlgorithm;
};
} // anonymous namespace
@ -640,23 +643,42 @@ IToolSettings* UISettingsImpl::getToolSettings(tools::Tool* tool)
namespace {
UISelectionSettingsImpl::UISelectionSettingsImpl() : m_moveTransparentColor(app::Color::fromMask())
UISelectionSettingsImpl::UISelectionSettingsImpl() :
m_moveTransparentColor(app::Color::fromMask()),
m_rotationAlgorithm(kFastRotationAlgorithm)
{
m_rotationAlgorithm = (RotationAlgorithm)get_config_int("Tools", "RotAlgorithm", m_rotationAlgorithm);
m_rotationAlgorithm = MID(
kFirstRotationAlgorithm,
m_rotationAlgorithm,
kLastRotationAlgorithm);
}
UISelectionSettingsImpl::~UISelectionSettingsImpl()
{
}
app::Color UISelectionSettingsImpl::getMoveTransparentColor()
{
return m_moveTransparentColor;
}
RotationAlgorithm UISelectionSettingsImpl::getRotationAlgorithm()
{
return m_rotationAlgorithm;
}
void UISelectionSettingsImpl::setMoveTransparentColor(app::Color color)
{
m_moveTransparentColor = color;
notifyObservers(&SelectionSettingsObserver::onSetMoveTransparentColor, color);
}
app::Color UISelectionSettingsImpl::getMoveTransparentColor()
void UISelectionSettingsImpl::setRotationAlgorithm(RotationAlgorithm algorithm)
{
return m_moveTransparentColor;
m_rotationAlgorithm = algorithm;
set_config_int("Tools", "RotAlgorithm", m_rotationAlgorithm);
notifyObservers(&SelectionSettingsObserver::onSetRotationAlgorithm, algorithm);
}
void UISelectionSettingsImpl::addObserver(SelectionSettingsObserver* observer)

36
src/app/ui/context_bar.cpp
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@ -44,6 +44,7 @@
#include "ui/combobox.h"
#include "ui/int_entry.h"
#include "ui/label.h"
#include "ui/listitem.h"
#include "ui/popup_window.h"
#include "ui/preferred_size_event.h"
#include "ui/theme.h"
@ -353,6 +354,39 @@ protected:
}
};
class ContextBar::RotAlgorithmField : public ComboBox
{
public:
RotAlgorithmField() {
addItem(new Item("Fast", kFastRotationAlgorithm));
addItem(new Item("RotSprite", kRotSpriteRotationAlgorithm));
setSelectedItemIndex((int)
UIContext::instance()->settings()->selection()
->getRotationAlgorithm());
}
protected:
void onChange() OVERRIDE {
UIContext::instance()->settings()->selection()
->setRotationAlgorithm(static_cast<Item*>(getSelectedItem())->algo());
}
private:
class Item : public ListItem {
public:
Item(const std::string& text, RotationAlgorithm algo) :
ListItem(text),
m_algo(algo) {
}
RotationAlgorithm algo() const { return m_algo; }
private:
RotationAlgorithm m_algo;
};
};
ContextBar::ContextBar()
: Box(JI_HORIZONTAL)
{
@ -386,6 +420,8 @@ ContextBar::ContextBar()
addChild(m_selectionOptionsBox = new HBox());
m_selectionOptionsBox->addChild(new Label("Transparent Color:"));
m_selectionOptionsBox->addChild(m_transparentColor = new TransparentColorField);
m_selectionOptionsBox->addChild(new Label("Algorithm:"));
m_selectionOptionsBox->addChild(m_rotAlgo = new RotAlgorithmField());
TooltipManager* tooltipManager = new TooltipManager();
addChild(tooltipManager);

2
src/app/ui/context_bar.h
View File

@ -51,6 +51,7 @@ namespace app {
class SprayWidthField;
class SpraySpeedField;
class TransparentColorField;
class RotAlgorithmField;
ui::Label* m_brushLabel;
BrushTypeField* m_brushType;
@ -67,6 +68,7 @@ namespace app {
SpraySpeedField* m_spraySpeed;
ui::Box* m_selectionOptionsBox;
TransparentColorField* m_transparentColor;
RotAlgorithmField* m_rotAlgo;
};
} // namespace app

82
src/app/ui/editor/pixels_movement.cpp
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@ -37,6 +37,7 @@
#include "raster/image.h"
#include "raster/mask.h"
#include "raster/rotate.h"
#include "raster/rotsprite.h"
#include "raster/sprite.h"
namespace app {
@ -73,10 +74,14 @@ PixelsMovement::PixelsMovement(Context* context,
m_initialMask = new Mask(*m_document->getMask());
m_currentMask = new Mask(*m_document->getMask());
UIContext::instance()->getSettings()->selection()->addObserver(this);
}
PixelsMovement::~PixelsMovement()
{
UIContext::instance()->getSettings()->selection()->removeObserver(this);
delete m_originalImage;
delete m_initialMask;
delete m_currentMask;
@ -394,12 +399,6 @@ void PixelsMovement::moveImage(int x, int y, MoveModifier moveModifier)
}
redrawExtraImage();
redrawCurrentMask();
if (m_firstDrop)
m_document->getApi().copyToCurrentMask(m_currentMask);
else
m_document->setMask(m_currentMask);
m_document->setTransformation(m_currentData);
@ -440,11 +439,7 @@ Image* PixelsMovement::getDraggedImageCopy(gfx::Point& origin)
int height = rightBottom.y - leftTop.y;
base::UniquePtr<Image> image(Image::create(m_sprite->getPixelFormat(), width, height));
clear_image(image, image->getMaskColor());
image_parallelogram(image, m_originalImage,
corners.leftTop().x-leftTop.x, corners.leftTop().y-leftTop.y,
corners.rightTop().x-leftTop.x, corners.rightTop().y-leftTop.y,
corners.rightBottom().x-leftTop.x, corners.rightBottom().y-leftTop.y,
corners.leftBottom().x-leftTop.x, corners.leftBottom().y-leftTop.y);
drawParallelogram(image, m_originalImage, corners, leftTop);
origin = leftTop;
@ -513,7 +508,9 @@ void PixelsMovement::dropImageTemporarily()
m_currentData.displacePivotTo(gfx::Point(newPivot.x, newPivot.y));
}
m_document->generateMaskBoundaries(m_currentMask);
redrawCurrentMask();
updateDocumentMask();
update_screen_for_document(m_document);
}
}
@ -593,11 +590,7 @@ void PixelsMovement::redrawExtraImage()
// Transform the extra-cel which is the chunk of pixels that the user is moving.
Image* extraImage = m_document->getExtraCelImage();
clear_image(extraImage, extraImage->getMaskColor());
image_parallelogram(extraImage, m_originalImage,
corners.leftTop().x, corners.leftTop().y,
corners.rightTop().x, corners.rightTop().y,
corners.rightBottom().x, corners.rightBottom().y,
corners.leftBottom().x, corners.leftBottom().y);
drawParallelogram(extraImage, m_originalImage, corners, gfx::Point(0, 0));
}
void PixelsMovement::redrawCurrentMask()
@ -610,13 +603,56 @@ void PixelsMovement::redrawCurrentMask()
m_currentMask->replace(0, 0, m_sprite->getWidth(), m_sprite->getHeight());
m_currentMask->freeze();
clear_image(m_currentMask->getBitmap(), 0);
image_parallelogram(m_currentMask->getBitmap(),
m_initialMask->getBitmap(),
corners.leftTop().x, corners.leftTop().y,
corners.rightTop().x, corners.rightTop().y,
corners.rightBottom().x, corners.rightBottom().y,
corners.leftBottom().x, corners.leftBottom().y);
drawParallelogram(m_currentMask->getBitmap(), m_initialMask->getBitmap(),
corners, gfx::Point(0, 0));
m_currentMask->unfreeze();
}
void PixelsMovement::drawParallelogram(raster::Image* dst, raster::Image* src,
const gfx::Transformation::Corners& corners,
const gfx::Point& leftTop)
{
switch (UIContext::instance()->getSettings()->selection()->getRotationAlgorithm()) {
case kFastRotationAlgorithm:
image_parallelogram(dst, src,
corners.leftTop().x-leftTop.x, corners.leftTop().y-leftTop.y,
corners.rightTop().x-leftTop.x, corners.rightTop().y-leftTop.y,
corners.rightBottom().x-leftTop.x, corners.rightBottom().y-leftTop.y,
corners.leftBottom().x-leftTop.x, corners.leftBottom().y-leftTop.y);
break;
case kRotSpriteRotationAlgorithm:
image_rotsprite(dst, src,
corners.leftTop().x-leftTop.x, corners.leftTop().y-leftTop.y,
corners.rightTop().x-leftTop.x, corners.rightTop().y-leftTop.y,
corners.rightBottom().x-leftTop.x, corners.rightBottom().y-leftTop.y,
corners.leftBottom().x-leftTop.x, corners.leftBottom().y-leftTop.y);
break;
}
}
void PixelsMovement::onSetRotationAlgorithm(RotationAlgorithm algorithm)
{
redrawExtraImage();
redrawCurrentMask();
updateDocumentMask();
update_screen_for_document(m_document);
}
void PixelsMovement::updateDocumentMask()
{
if (m_firstDrop) {
m_firstDrop = false;
m_document->getApi().copyToCurrentMask(m_currentMask);
}
else
m_document->setMask(m_currentMask);
m_document->generateMaskBoundaries(m_currentMask);
}
} // namespace app

15
src/app/ui/editor/pixels_movement.h
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@ -19,11 +19,13 @@
#ifndef APP_UI_EDITOR_PIXELS_MOVEMENT_H_INCLUDED
#define APP_UI_EDITOR_PIXELS_MOVEMENT_H_INCLUDED
#include "app/ui/editor/handle_type.h"
#include "app/context_access.h"
#include "app/settings/settings_observers.h"
#include "app/ui/editor/handle_type.h"
#include "app/undo_transaction.h"
#include "base/compiler_specific.h"
#include "gfx/size.h"
#include "raster/algorithm/flip_type.h"
#include "app/undo_transaction.h"
namespace raster {
class Image;
@ -38,7 +40,7 @@ namespace app {
// feedback, drag, and drop the specified image in the constructor
// (which generally would be the selected region or the clipboard
// content).
class PixelsMovement {
class PixelsMovement : public SelectionSettingsObserver {
public:
enum MoveModifier {
NormalMovement = 1,
@ -94,9 +96,16 @@ namespace app {
const gfx::Transformation& getTransformation() const { return m_currentData; }
protected:
void onSetRotationAlgorithm(RotationAlgorithm algorithm) OVERRIDE;
private:
void redrawExtraImage();
void redrawCurrentMask();
void drawParallelogram(raster::Image* dst, raster::Image* src,
const gfx::Transformation::Corners& corners,
const gfx::Point& leftTop);
void updateDocumentMask();
const ContextReader m_reader;
Document* m_document;

1
src/raster/CMakeLists.txt
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@ -32,5 +32,6 @@ add_library(raster-lib
quantization.cpp
rgbmap.cpp
rotate.cpp
rotsprite.cpp
sprite.cpp
stock.cpp)

6
src/raster/image_iterator.h
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@ -447,6 +447,12 @@ namespace raster {
return *this;
}
ImageIteratorT& operator+=(int diff) {
while (diff-- > 0)
operator++();
return *this;
}
ImageIteratorT operator++(int) {
ImageIteratorT tmp(*this);
operator++();

66
src/raster/rotate.cpp
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@ -15,6 +15,7 @@
#include "raster/image.h"
#include "raster/image_bits.h"
#include "raster/primitives.h"
#include "raster/primitives_fast.h"
#include <allegro.h>
#include <allegro/internal/aintern.h>
@ -39,37 +40,58 @@ static void ase_rotate_scale_flip_coordinates(fixed w, fixed h,
int h_flip, int v_flip,
fixed xs[4], fixed ys[4]);
template<typename ImageTraits, typename BlendFunc>
static void image_scale_tpl(Image* dst, const Image* src, int x, int y, int w, int h, BlendFunc blend)
{
int src_w = src->getWidth();
int src_h = src->getHeight();
for (int v=0; v<h; ++v) {
for (int u=0; u<w; ++u) {
color_t c = get_pixel_fast<ImageTraits>(src, src_w*u/w, src_h*v/h);
put_pixel_fast<ImageTraits>(dst, x+u, y+v,
blend(get_pixel_fast<ImageTraits>(dst, x+u, y+v), c));
}
}
}
static color_t rgba_blender(color_t back, color_t front) {
return rgba_blenders[BLEND_MODE_NORMAL](back, front, 255);
}
static color_t grayscale_blender(color_t back, color_t front) {
return graya_blenders[BLEND_MODE_NORMAL](back, front, 255);
}
static color_t if_blender(color_t back, color_t front) {
if (front != 0)
return front;
else
return back;
}
void image_scale(Image *dst, Image *src, int x, int y, int w, int h)
{
if (w == src->getWidth() && src->getHeight() == h)
composite_image(dst, src, x, y, 255, BLEND_MODE_NORMAL);
else {
BLEND_COLOR blender = NULL;
int u, v, c;
switch (dst->getPixelFormat()) {
if (dst->getPixelFormat() == IMAGE_RGB)
blender = rgba_blenders[BLEND_MODE_NORMAL];
else if (dst->getPixelFormat() == IMAGE_GRAYSCALE)
blender = graya_blenders[BLEND_MODE_NORMAL];
case IMAGE_RGB:
image_scale_tpl<RgbTraits>(dst, src, x, y, w, h, rgba_blender);
break;
for (v=0; v<h; v++) {
for (u=0; u<w; u++) {
c = get_pixel(src, src->getWidth()*u/w, src->getHeight()*v/h);
case IMAGE_GRAYSCALE:
image_scale_tpl<GrayscaleTraits>(dst, src, x, y, w, h, grayscale_blender);
break;
switch (dst->getPixelFormat()) {
case IMAGE_INDEXED:
image_scale_tpl<IndexedTraits>(dst, src, x, y, w, h, if_blender);
break;
case IMAGE_RGB:
case IMAGE_GRAYSCALE:
put_pixel(dst, x+u, y+v,
blender(get_pixel(dst, x+u, y+v), c, 255));
break;
case IMAGE_INDEXED:
if (c != 0)
put_pixel(dst, x+u, y+v, c);
break;
}
}
case IMAGE_BITMAP:
image_scale_tpl<BitmapTraits>(dst, src, x, y, w, h, if_blender);
break;
}
}
}

199
src/raster/rotsprite.cpp Normal file
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@ -0,0 +1,199 @@
/* Aseprite
* Copyright (C) 2001-2013 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "base/unique_ptr.h"
#include "raster/blend.h"
#include "raster/image.h"
#include "raster/image_bits.h"
#include "raster/primitives.h"
#include "raster/primitives_fast.h"
#include "raster/rotate.h"
namespace raster {
// More information about EPX/Scale2x:
// http://en.wikipedia.org/wiki/Pixel_art_scaling_algorithms#EPX.2FScale2.C3.97.2FAdvMAME2.C3.97
// http://scale2x.sourceforge.net/algorithm.html
// http://scale2x.sourceforge.net/scale2xandepx.html
template<typename ImageTraits>
static void image_scale2x_tpl(Image* dst, const Image* src, int src_w, int src_h)
{
#if 0 // TODO complete this implementation that should be faster
// than using a lot of get/put_pixel_fast calls.
int dst_w = src_w*2;
int dst_h = src_h*2;
LockImageBits<ImageTraits> dstBits(dst, Image::WriteLock, gfx::Rect(0, 0, dst_w, dst_h));
const LockImageBits<ImageTraits> srcBits(src);
LockImageBits<ImageTraits>::iterator dstRow0_it = dstBits.begin();
LockImageBits<ImageTraits>::iterator dstRow1_it = dstBits.begin();
LockImageBits<ImageTraits>::iterator dstRow0_end = dstBits.end();
LockImageBits<ImageTraits>::iterator dstRow1_end = dstBits.end();
// Iterators:
// A
// C P B
// D
//
// These iterators are displaced through src image and are modified in this way:
//
// P: is the simplest one, we just start from (0, 0) to srcEnd.
// A: starts from row 0 (so A = P in the first row), then we start
// again from the row 0.
// B: It starts from (1, row) and in the last pixel we don't moved it.
// C: It starts from (0, 0) and then it is moved with a delay.
// D: It starts from row 1 and continues until we reach the last
// row, in that case we start D iterator again.
//
LockImageBits<ImageTraits>::const_iterator itP, itA, itB, itC, itD, savedD;
LockImageBits<ImageTraits>::const_iterator srcEnd = srcBits.end();
color_t P, A, B, C, D;
// Adjust iterators
itP = itA = itB = itC = itD = savedD = srcBits.begin();
dstRow1_it += dst_w;
itD += src->getWidth();
for (int y=0; y<src_h; ++y) {
if (y == 1) itA = srcBits.begin();
if (y == src_h-2) savedD = itD;
if (y == src_h-1) itD = savedD;
++itB;
for (int x=0; x<src_w; ++x) {
ASSERT(itP != srcEnd);
ASSERT(itA != srcEnd);
ASSERT(itB != srcEnd);
ASSERT(itC != srcEnd);
ASSERT(itD != srcEnd);
ASSERT(dstRow0_it != dstRow0_end);
ASSERT(dstRow1_it != dstRow1_end);
P = *itP;
A = *itA; // y-1
B = *itB; // x+1
C = *itC; // x-1
D = *itD; // y+1
*dstRow0_it = (C == A && C != D && A != B ? A: P);
++dstRow0_it;
*dstRow0_it = (A == B && A != C && B != D ? B: P);
++dstRow0_it;
*dstRow1_it = (D == C && D != B && C != A ? C: P);
++dstRow1_it;
*dstRow1_it = (B == D && B != A && D != C ? D: P);
++dstRow1_it;
++itP;
++itA;
if (x < src_w-2) ++itB;
if (x > 0) ++itC;
++itD;
}
// Adjust iterators for the next two rows.
++itB;
++itC;
dstRow0_it += dst_w;
if (y < src_h-1)
dstRow1_it += dst_w;
}
// ASSERT(itP == srcEnd);
// ASSERT(itA == srcEnd);
// ASSERT(itB == srcEnd);
// ASSERT(itC == srcEnd);
// ASSERT(itD == srcEnd);
ASSERT(dstRow0_it == dstRow0_end);
ASSERT(dstRow1_it == dstRow1_end);
#else
#define A c[0]
#define B c[1]
#define C c[2]
#define D c[3]
#define P c[4]
color_t c[5];
for (int y=0; y<src_h; ++y) {
for (int x=0; x<src_w; ++x) {
P = get_pixel_fast<ImageTraits>(src, x, y);
A = (y > 0 ? get_pixel_fast<ImageTraits>(src, x, y-1): P);
B = (x < src_w-1 ? get_pixel_fast<ImageTraits>(src, x+1, y): P);
C = (x > 0 ? get_pixel_fast<ImageTraits>(src, x-1, y): P);
D = (y < src_h-1 ? get_pixel_fast<ImageTraits>(src, x, y+1): P);
put_pixel_fast<ImageTraits>(dst, 2*x, 2*y, (C == A && C != D && A != B ? A: P));
put_pixel_fast<ImageTraits>(dst, 2*x+1, 2*y, (A == B && A != C && B != D ? B: P));
put_pixel_fast<ImageTraits>(dst, 2*x, 2*y+1, (D == C && D != B && C != A ? C: P));
put_pixel_fast<ImageTraits>(dst, 2*x+1, 2*y+1, (B == D && B != A && D != C ? D: P));
}
}
#endif
}
static void image_scale2x(Image* dst, const Image* src, int src_w, int src_h)
{
switch (src->getPixelFormat()) {
case IMAGE_RGB: image_scale2x_tpl<RgbTraits>(dst, src, src_w, src_h); break;
case IMAGE_GRAYSCALE: image_scale2x_tpl<GrayscaleTraits>(dst, src, src_w, src_h); break;
case IMAGE_INDEXED: image_scale2x_tpl<IndexedTraits>(dst, src, src_w, src_h); break;
case IMAGE_BITMAP: image_scale2x_tpl<BitmapTraits>(dst, src, src_w, src_h); break;
}
}
void image_rotsprite(Image* bmp, Image* spr,
int x1, int y1, int x2, int y2,
int x3, int y3, int x4, int y4)
{
static ImageBufferPtr buf1, buf2, buf3;
if (!buf1) buf1.reset(new ImageBuffer(1));
if (!buf2) buf2.reset(new ImageBuffer(1));
if (!buf3) buf3.reset(new ImageBuffer(1));
int scale = 8;
base::UniquePtr<Image> bmp_copy(Image::create(bmp->getPixelFormat(), bmp->getWidth()*scale, bmp->getHeight()*scale, buf1));
base::UniquePtr<Image> tmp_copy(Image::create(spr->getPixelFormat(), spr->getWidth()*scale, spr->getHeight()*scale, buf2));
base::UniquePtr<Image> spr_copy(Image::create(spr->getPixelFormat(), spr->getWidth()*scale, spr->getHeight()*scale, buf3));
bmp_copy->clear(0);
spr_copy->clear(0);
spr_copy->copy(spr, 0, 0);
for (int i=0; i<3; ++i) {
tmp_copy->clear(0);
image_scale2x(tmp_copy, spr_copy, spr->getWidth()*(1<<i), spr->getHeight()*(1<<i));
spr_copy->copy(tmp_copy, 0, 0);
}
image_parallelogram(bmp_copy, spr_copy,
x1*scale, y1*scale, x2*scale, y2*scale,
x3*scale, y3*scale, x4*scale, y4*scale);
image_scale(bmp, bmp_copy, 0, 0, bmp->getWidth(), bmp->getHeight());
}
} // namespace raster

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/* Aseprite
* Copyright (C) 2001-2013 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef RASTER_ROTSPRITE_H_INCLUDED
#define RASTER_ROTSPRITE_H_INCLUDED
namespace raster {
class Image;
void image_rotsprite(Image* bmp, Image* spr,
int x1, int y1, int x2, int y2,
int x3, int y3, int x4, int y4);
} // namespace raster
#endif