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Use old composite code (faster code) when possible

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We use the new general image composite code in case that there is a
reference layer or the background grid is so small that we need a
pixel-by-pixel color blending.
This commit is contained in:
David Capello 2016-10-11 16:43:37 -03:00
parent 8d94dc94d4
commit b83eb89ce4
3 changed files with 118 additions and 134 deletions
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7
src/gfx/clip.h
View File

@ -63,6 +63,13 @@ namespace gfx {
, size(bounds.w, bounds.h) {
}
template<typename T2>
ClipT(const ClipT<T2>& other)
: dst(other.dst)
, src(other.src)
, size(other.size) {
}
RectT<T> dstBounds() const { return RectT<T>(dst, size); }
RectT<T> srcBounds() const { return RectT<T>(src, size); }

240
src/render/render.cpp
View File

@ -131,17 +131,14 @@ public:
}
};
#if 0
template<class DstTraits, class SrcTraits>
void composite_image_without_scale(
Image* dst,
const Image* src,
const Palette* pal,
const gfx::Clip& _area,
Image* dst, const Image* src, const Palette* pal,
const gfx::ClipF& areaF,
const int opacity,
const BlendMode blendMode,
const Projection& proj)
const double sx,
const double sy)
{
ASSERT(dst);
ASSERT(src);
@ -150,7 +147,7 @@ void composite_image_without_scale(
BlenderHelper<DstTraits, SrcTraits> blender(src, pal, blendMode);
gfx::Clip area = _area;
gfx::Clip area(areaF);
if (!area.clip(dst->width(), dst->height(),
src->width(), src->height()))
return;
@ -189,33 +186,36 @@ void composite_image_without_scale(
template<class DstTraits, class SrcTraits>
void composite_image_scale_up(
Image* dst,
const Image* src,
const Palette* pal,
const gfx::Clip& _area,
Image* dst, const Image* src, const Palette* pal,
const gfx::ClipF& areaF,
const int opacity,
const BlendMode blendMode,
const Projection& proj)
const double sx,
const double sy)
{
ASSERT(dst);
ASSERT(src);
ASSERT(DstTraits::pixel_format == dst->pixelFormat());
ASSERT(SrcTraits::pixel_format == src->pixelFormat());
gfx::Clip area = _area;
gfx::Clip area(areaF);
if (!area.clip(dst->width(), dst->height(),
proj.applyX(src->width()),
proj.applyY(src->height())))
int(sx*double(src->width())),
int(sy*double(src->height()))))
return;
BlenderHelper<DstTraits, SrcTraits> blender(src, pal, blendMode);
int px_x, px_y;
int px_w = proj.applyX(1);
int px_h = proj.applyY(1);
int px_w = sx;
int px_h = sy;
int first_px_w = px_w - (area.src.x % px_w);
int first_px_h = px_h - (area.src.y % px_h);
gfx::Rect srcBounds = proj.remove(area.srcBounds());
gfx::Rect srcBounds = area.srcBounds();
srcBounds.w = (srcBounds.x+srcBounds.w)/px_w - srcBounds.x/px_w;
srcBounds.h = (srcBounds.y+srcBounds.h)/px_h - srcBounds.y/px_h;
srcBounds.x /= px_w;
srcBounds.y /= px_h;
if ((area.src.x+area.size.w) % px_w > 0) ++srcBounds.w;
if ((area.src.y+area.size.h) % px_h > 0) ++srcBounds.h;
if (srcBounds.isEmpty())
@ -326,29 +326,34 @@ done_with_blit:;
template<class DstTraits, class SrcTraits>
void composite_image_scale_down(
Image* dst, const Image* src, const Palette* pal,
const gfx::Clip& _area,
const gfx::ClipF& areaF,
const int opacity,
const BlendMode blendMode,
const Projection& proj)
const double sx,
const double sy)
{
ASSERT(dst);
ASSERT(src);
ASSERT(DstTraits::pixel_format == dst->pixelFormat());
ASSERT(SrcTraits::pixel_format == src->pixelFormat());
gfx::Clip area = _area;
gfx::Clip area(areaF);
if (!area.clip(dst->width(), dst->height(),
proj.applyX(src->width()),
proj.applyY(src->height())))
int(sx*double(src->width())),
int(sy*double(src->height()))))
return;
BlenderHelper<DstTraits, SrcTraits> blender(src, pal, blendMode);
int step_w = proj.removeX(1);
int step_h = proj.removeY(1);
int step_w = 1.0 / sx;
int step_h = 1.0 / sy;
if (step_w < 1 || step_h < 1)
return;
gfx::Rect srcBounds = proj.remove(area.srcBounds());
gfx::Rect srcBounds = area.srcBounds();
srcBounds.w = (srcBounds.x+srcBounds.w)*step_w - srcBounds.x*step_w;
srcBounds.h = (srcBounds.y+srcBounds.h)*step_h - srcBounds.y*step_h;
srcBounds.x *= step_w;
srcBounds.y *= step_h;
if (srcBounds.isEmpty())
return;
@ -383,70 +388,10 @@ void composite_image_scale_down(
}
}
template<class DstTraits, class SrcTraits>
void composite_image_scale_down_non_square_pixel_ratio(
Image* dst, const Image* src, const Palette* pal,
const gfx::Clip& _area,
const int opacity,
const BlendMode blendMode,
const Projection& proj)
{
ASSERT(dst);
ASSERT(src);
ASSERT(DstTraits::pixel_format == dst->pixelFormat());
ASSERT(SrcTraits::pixel_format == src->pixelFormat());
gfx::Clip area = _area;
if (!area.clip(dst->width(), dst->height(),
proj.applyX(src->width()),
proj.applyY(src->height())))
return;
BlenderHelper<DstTraits, SrcTraits> blender(src, pal, blendMode);
float step_w = proj.removeX(1.0f);
float step_h = proj.removeY(1.0f);
if (step_w < 1.0f || step_h < 1.0f)
return;
gfx::Rect srcBounds = proj.remove(area.srcBounds());
if (srcBounds.isEmpty())
return;
gfx::Rect dstBounds = area.dstBounds();
// Lock all necessary bits
LockImageBits<DstTraits> dstBits(dst, dstBounds);
auto dst_it = dstBits.begin();
auto dst_end = dstBits.end();
// For each line to draw of the source image...
float v = float(srcBounds.y);
for (int y=0; y<dstBounds.h; ++y) {
float u = float(srcBounds.x);
for (int x=0; x<dstBounds.w; ++x) {
ASSERT(dst_it >= dstBits.begin() && dst_it < dst_end);
*dst_it = blender(*dst_it,
get_pixel_fast<SrcTraits>(src, int(u), int(v)),
opacity);
// Skip columns
u += step_w;
++dst_it;
}
// Skip rows
v += step_h;
}
}
#else
template<class DstTraits, class SrcTraits>
void composite_image_general(
Image* dst, const Image* src, const Palette* pal,
const gfx::ClipF& _area,
const gfx::ClipF& areaF,
const int opacity,
const BlendMode blendMode,
const double sx,
@ -457,14 +402,14 @@ void composite_image_general(
ASSERT(DstTraits::pixel_format == dst->pixelFormat());
ASSERT(SrcTraits::pixel_format == src->pixelFormat());
gfx::ClipF area = _area;
gfx::ClipF area(areaF);
if (!area.clip(dst->width(), dst->height(),
sx*src->width(), sy*src->height()))
return;
BlenderHelper<DstTraits, SrcTraits> blender(src, pal, blendMode);
gfx::RectF dstBounds = area.dstBounds();
gfx::Rect dstBounds = area.dstBounds();
gfx::RectF srcBounds = area.srcBounds();
int dstY = dstBounds.y;
@ -487,13 +432,14 @@ void composite_image_general(
}
}
#endif
template<class DstTraits, class SrcTraits>
CompositeImageFunc get_image_composition_impl(const Projection& proj)
CompositeImageFunc get_fastest_composition_path(const Projection& proj,
const bool finegrain)
{
#if 0
if (proj.applyX(1) == 1 && proj.applyY(1) == 1) {
if (finegrain) {
return composite_image_general<DstTraits, SrcTraits>;
}
else if (proj.applyX(1) == 1 && proj.applyY(1) == 1) {
return composite_image_without_scale<DstTraits, SrcTraits>;
}
else if (proj.scaleX() >= 1.0 && proj.scaleY() >= 1.0) {
@ -502,49 +448,27 @@ CompositeImageFunc get_image_composition_impl(const Projection& proj)
// Slower composite function for special cases with odd zoom and non-square pixel ratio
else if (((proj.removeX(1) > 1) && (proj.removeX(1) & 1)) ||
((proj.removeY(1) > 1) && (proj.removeY(1) & 1))) {
return composite_image_scale_down_non_square_pixel_ratio<DstTraits, SrcTraits>;
return composite_image_general<DstTraits, SrcTraits>;
}
else {
return composite_image_scale_down<DstTraits, SrcTraits>;
}
#else
return composite_image_general<DstTraits, SrcTraits>;
#endif
}
CompositeImageFunc get_image_composition(const PixelFormat dstFormat,
const PixelFormat srcFormat,
const Projection& proj)
bool has_visible_reference_layers(const LayerGroup* group)
{
switch (srcFormat) {
for (const Layer* child : group->layers()) {
if (!child->isVisible())
continue;
case IMAGE_RGB:
switch (dstFormat) {
case IMAGE_RGB: return get_image_composition_impl<RgbTraits, RgbTraits>(proj);
case IMAGE_GRAYSCALE: return get_image_composition_impl<GrayscaleTraits, RgbTraits>(proj);
case IMAGE_INDEXED: return get_image_composition_impl<IndexedTraits, RgbTraits>(proj);
}
break;
if (child->isReference())
return true;
case IMAGE_GRAYSCALE:
switch (dstFormat) {
case IMAGE_RGB: return get_image_composition_impl<RgbTraits, GrayscaleTraits>(proj);
case IMAGE_GRAYSCALE: return get_image_composition_impl<GrayscaleTraits, GrayscaleTraits>(proj);
case IMAGE_INDEXED: return get_image_composition_impl<IndexedTraits, GrayscaleTraits>(proj);
if (child->isGroup() &&
has_visible_reference_layers(static_cast<const LayerGroup*>(child)))
return true;
}
break;
case IMAGE_INDEXED:
switch (dstFormat) {
case IMAGE_RGB: return get_image_composition_impl<RgbTraits, IndexedTraits>(proj);
case IMAGE_GRAYSCALE: return get_image_composition_impl<GrayscaleTraits, IndexedTraits>(proj);
case IMAGE_INDEXED: return get_image_composition_impl<IndexedTraits, IndexedTraits>(proj);
}
break;
}
ASSERT(false && "Invalid pixel formats");
return NULL;
return false;
}
} // anonymous namespace
@ -674,9 +598,9 @@ void Render::renderLayer(
m_sprite = layer->sprite();
CompositeImageFunc compositeImage =
get_image_composition(
getImageComposition(
dstImage->pixelFormat(),
m_sprite->pixelFormat(), m_proj);
m_sprite->pixelFormat(), layer);
if (!compositeImage)
return;
@ -696,9 +620,9 @@ void Render::renderSprite(
m_sprite = sprite;
CompositeImageFunc compositeImage =
get_image_composition(
getImageComposition(
dstImage->pixelFormat(),
m_sprite->pixelFormat(), m_proj);
m_sprite->pixelFormat(), sprite->root());
if (!compositeImage)
return;
@ -900,9 +824,9 @@ void Render::renderImage(
const BlendMode blendMode)
{
CompositeImageFunc compositeImage =
get_image_composition(
getImageComposition(
dst_image->pixelFormat(),
src_image->pixelFormat(), m_proj);
src_image->pixelFormat(), nullptr);
if (!compositeImage)
return;
@ -1113,6 +1037,54 @@ void Render::renderImage(
m_proj.scaleY() * double(cel_image->height()) / celBounds.h);
}
CompositeImageFunc Render::getImageComposition(
const PixelFormat dstFormat,
const PixelFormat srcFormat,
const Layer* layer)
{
// True if we need blending pixel by pixel. If this is false we can
// blend src+dst one time and repeat the resulting color in dst
// image n-times (where n is the zoom scale).
const bool finegrain =
(m_bgCheckedSize.w < m_proj.applyX(1) ||
m_bgCheckedSize.h < m_proj.applyY(1) ||
// Check if we are rendering reference images with zoom scale > 1
((m_proj.applyX(1) > 1 || m_proj.applyY(1) > 1) &&
layer &&
layer->isGroup() &&
has_visible_reference_layers(static_cast<const LayerGroup*>(layer))));
switch (srcFormat) {
case IMAGE_RGB:
switch (dstFormat) {
case IMAGE_RGB: return get_fastest_composition_path<RgbTraits, RgbTraits>(m_proj, finegrain);
case IMAGE_GRAYSCALE: return get_fastest_composition_path<GrayscaleTraits, RgbTraits>(m_proj, finegrain);
case IMAGE_INDEXED: return get_fastest_composition_path<IndexedTraits, RgbTraits>(m_proj, finegrain);
}
break;
case IMAGE_GRAYSCALE:
switch (dstFormat) {
case IMAGE_RGB: return get_fastest_composition_path<RgbTraits, GrayscaleTraits>(m_proj, finegrain);
case IMAGE_GRAYSCALE: return get_fastest_composition_path<GrayscaleTraits, GrayscaleTraits>(m_proj, finegrain);
case IMAGE_INDEXED: return get_fastest_composition_path<IndexedTraits, GrayscaleTraits>(m_proj, finegrain);
}
break;
case IMAGE_INDEXED:
switch (dstFormat) {
case IMAGE_RGB: return get_fastest_composition_path<RgbTraits, IndexedTraits>(m_proj, finegrain);
case IMAGE_GRAYSCALE: return get_fastest_composition_path<GrayscaleTraits, IndexedTraits>(m_proj, finegrain);
case IMAGE_INDEXED: return get_fastest_composition_path<IndexedTraits, IndexedTraits>(m_proj, finegrain);
}
break;
}
ASSERT(false && "Invalid pixel formats");
return nullptr;
}
void composite_image(Image* dst,
const Image* src,
const Palette* pal,

5
src/render/render.h
View File

@ -208,6 +208,11 @@ namespace render {
const int opacity,
const BlendMode blendMode);
CompositeImageFunc getImageComposition(
const PixelFormat dstFormat,
const PixelFormat srcFormat,
const Layer* layer);
const Sprite* m_sprite;
const Layer* m_currentLayer;
frame_t m_currentFrame;