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thorvg/src/lib/sw_engine/tvgSwRaster.cpp
Hermet Park 16d5907642 sw_engine image: apply rgba blending. 
rgba requires the default blending.
2021-11-23 15:22:28 +09:00

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/*
* Copyright (c) 2020-2021 Samsung Electronics Co., Ltd. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "tvgMath.h"
#include "tvgRender.h"
#include "tvgSwCommon.h"
#include "tvgSwRasterC.h"
#include "tvgSwRasterAvx.h"
#include "tvgSwRasterNeon.h"
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
constexpr auto DOWN_SCALE_TOLERANCE = 0.5f;
static inline uint32_t _multiplyAlpha(uint32_t c, uint32_t a)
{
return ((c * a + 0xff) >> 8);
}
static uint32_t _colorAlpha(uint32_t c)
{
return (c >> 24);
}
static uint32_t _colorInvAlpha(uint32_t c)
{
return (~c >> 24);
}
static uint32_t _abgrJoin(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
return (a << 24 | b << 16 | g << 8 | r);
}
static uint32_t _argbJoin(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
return (a << 24 | r << 16 | g << 8 | b);
}
static bool _translucent(const SwSurface* surface, uint8_t a)
{
if (a < 255) return true;
if (!surface->compositor || surface->compositor->method == CompositeMethod::None) return false;
return true;
}
//Bilinear Interpolation
static uint32_t _interpUpScaler(const uint32_t *img, uint32_t w, uint32_t h, float sx, float sy)
{
auto rx = static_cast<uint32_t>(sx);
auto ry = static_cast<uint32_t>(sy);
auto dx = static_cast<uint32_t>((sx - rx) * 255.0f);
auto dy = static_cast<uint32_t>((sy - ry) * 255.0f);
auto c1 = img[rx + (ry * w)];
auto c2 = img[(rx + 1) + (ry * w)];
auto c3 = img[(rx + 1) + ((ry + 1) * w)];
auto c4 = img[rx + ((ry + 1) * w)];
return COLOR_INTERPOLATE(COLOR_INTERPOLATE(c1, 255 - dx, c2, dx), 255 - dy, COLOR_INTERPOLATE(c4, 255 - dx, c3, dx), dy);
}
//2n x 2n Mean Kernel
static uint32_t _interpDownScaler(const uint32_t *img, uint32_t w, uint32_t h, uint32_t rX, uint32_t rY, uint32_t n)
{
uint32_t c[4] = { 0 };
auto n2 = n * n;
auto src = img + rX - n + (rY - n) * w;
for (auto y = rY - n; y < rY + n; ++y) {
auto p = src;
for (auto x = rX - n; x < rX + n; ++x, ++p) {
c[0] += *p >> 24;
c[1] += (*p >> 16) & 0xff;
c[2] += (*p >> 8) & 0xff;
c[3] += *p & 0xff;
}
src += w;
}
for (auto i = 0; i < 4; ++i) {
c[i] = (c[i] >> 2) / n2;
}
return (c[0] << 24) | (c[1] << 16) | (c[2] << 8) | c[3];
}
/************************************************************************/
/* Rect */
/************************************************************************/
static bool _rasterTranslucentMaskedRect(SwSurface* surface, const SwBBox& region, uint32_t color, uint32_t (*blendMethod)(uint32_t))
{
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
TVGLOG("SW_ENGINE", "Translucent Masked Rect");
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride) + region.min.x; //compositor buffer
for (uint32_t y = 0; y < h; ++y) {
auto dst = &buffer[y * surface->stride];
auto cmp = &cbuffer[y * surface->stride];
for (uint32_t x = 0; x < w; ++x) {
auto tmp = ALPHA_BLEND(color, blendMethod(*cmp));
dst[x] = tmp + ALPHA_BLEND(dst[x], surface->blender.ialpha(tmp));
++cmp;
}
}
return true;
}
static bool _rasterTranslucentRect(SwSurface* surface, const SwBBox& region, uint32_t color)
{
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentMaskedRect(surface, region, color, surface->blender.alpha);
}
if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentMaskedRect(surface, region, color, surface->blender.ialpha);
}
}
#if defined(THORVG_AVX_VECTOR_SUPPORT)
return avxRasterTranslucentRect(surface, region, color);
#elif defined(THORVG_NEON_VECTOR_SUPPORT)
return neonRasterTranslucentRect(surface, region, color);
#else
return cRasterTranslucentRect(surface, region, color);
#endif
}
static bool _rasterSolidRect(SwSurface* surface, const SwBBox& region, uint32_t color)
{
auto buffer = surface->buffer + (region.min.y * surface->stride);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
for (uint32_t y = 0; y < h; ++y) {
rasterRGBA32(buffer + y * surface->stride, color, region.min.x, w);
}
return true;
}
/************************************************************************/
/* Rle */
/************************************************************************/
static bool _rasterTranslucentMaskedRle(SwSurface* surface, SwRleData* rle, uint32_t color, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Translucent Masked Rle");
auto span = rle->spans;
uint32_t src;
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < rle->size; ++i) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
if (span->coverage < 255) src = ALPHA_BLEND(color, span->coverage);
else src = color;
for (uint32_t x = 0; x < span->len; ++x) {
auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
dst[x] = tmp + ALPHA_BLEND(dst[x], surface->blender.ialpha(tmp));
++cmp;
}
++span;
}
return true;
}
static bool _rasterTranslucentRle(SwSurface* surface, SwRleData* rle, uint32_t color)
{
if (!rle) return false;
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentMaskedRle(surface, rle, color, surface->blender.alpha);
}
if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentMaskedRle(surface, rle, color, surface->blender.ialpha);
}
}
#if defined(THORVG_AVX_VECTOR_SUPPORT)
return avxRasterTranslucentRle(surface, rle, color);
#elif defined(THORVG_NEON_VECTOR_SUPPORT)
return neonRasterTranslucentRle(surface, rle, color);
#else
return cRasterTranslucentRle(surface, rle, color);
#endif
}
static bool _rasterSolidRle(SwSurface* surface, const SwRleData* rle, uint32_t color)
{
if (!rle) return false;
auto span = rle->spans;
for (uint32_t i = 0; i < rle->size; ++i) {
if (span->coverage == 255) {
rasterRGBA32(surface->buffer + span->y * surface->stride, color, span->x, span->len);
} else {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto src = ALPHA_BLEND(color, span->coverage);
auto ialpha = 255 - span->coverage;
for (uint32_t i = 0; i < span->len; ++i) {
dst[i] = src + ALPHA_BLEND(dst[i], ialpha);
}
}
++span;
}
return true;
}
/************************************************************************/
/* RLE Transformed Translucent RGBA Image */
/************************************************************************/
static bool _rasterTransformedMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Transformed Masked Rle Image");
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
if (alpha == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto tmp = ALPHA_BLEND(img[rY * image->stride + rX], blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool _rasterTransformedTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterDownScaledMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Down Scaled Masked Rle Image");
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
if (alpha == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpDownScaler(img, image->stride, h, rX, rY, halfScale), alpha);
auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpDownScaler(img, image->stride, h, rX, rY, halfScale), alpha);
auto tmp = ALPHA_BLEND(src, _multiplyAlpha(alpha, blendMethod(*cmp)));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool _rasterDownScaledTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform, uint32_t halfScale)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpDownScaler(img, image->stride, h, rX, rY, halfScale), alpha);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterUpScaledMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Up Scaled Masked Rle Image");
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
if (alpha == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto fX = (span->x + x) * itransform->e11 + ey1;
auto fY = (span->x + x) * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), alpha);
auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
auto fX = (span->x + x) * itransform->e11 + ey1;
auto fY = (span->x + x) * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), alpha);
auto tmp = ALPHA_BLEND(src, _multiplyAlpha(alpha, blendMethod(*cmp)));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool _rasterUpScaledTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto alpha = _multiplyAlpha(span->coverage, opacity);
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto fX = (span->x + x) * itransform->e11 + ey1;
auto fY = (span->x + x) * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rY * image->stride + rX], alpha);
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), alpha);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterTransformedTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
//Transformed
if (mathEqual(image->scale, 1.0f)) {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTransformedMaskedRleRGBAImage(surface, image, opacity, itransform, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTransformedMaskedRleRGBAImage(surface, image, opacity, itransform, surface->blender.ialpha);
}
}
return _rasterTransformedTranslucentRleRGBAImage(surface, image, opacity, itransform);
//Transformed + Down Scaled
} else if (image->scale < DOWN_SCALE_TOLERANCE) {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterDownScaledMaskedRleRGBAImage(surface, image, opacity, itransform, halfScale, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterDownScaledMaskedRleRGBAImage(surface, image, opacity, itransform, halfScale, surface->blender.ialpha);
}
}
return _rasterDownScaledTranslucentRleRGBAImage(surface, image, opacity, itransform, halfScale);
//Transformed + Up Scaled
} else {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterUpScaledMaskedRleRGBAImage(surface, image, opacity, itransform, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterUpScaledMaskedRleRGBAImage(surface, image, opacity, itransform, surface->blender.ialpha);
}
}
return _rasterUpScaledTranslucentRleRGBAImage(surface, image, opacity, itransform);
}
}
/************************************************************************/
/* RLE Transformed RGBA Image */
/************************************************************************/
static bool __rasterTransformedRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = ALPHA_BLEND(img[rY * image->stride + rX], span->coverage);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterDownScaledRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, uint32_t halfScale)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf((span->x + x) * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf((span->x + x) * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = ALPHA_BLEND(img[rY * image->stride + rX], span->coverage);
else src = ALPHA_BLEND(_interpDownScaler(img, image->stride, h, rX, rY, halfScale), span->coverage);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterUpScaledRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform)
{
auto span = image->rle->spans;
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto ey1 = span->y * itransform->e12 + itransform->e13;
auto ey2 = span->y * itransform->e22 + itransform->e23;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
auto fX = (span->x + x) * itransform->e11 + ey1;
auto fY = (span->x + x) * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rY * image->stride + rX], span->coverage);
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), span->coverage);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterTransformedRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
if (mathEqual(image->scale, 1.0f)) return __rasterTransformedRleRGBAImage(surface, image, itransform);
else if (image->scale < DOWN_SCALE_TOLERANCE) return _rasterDownScaledRleRGBAImage(surface, image, itransform, halfScale);
else return _rasterUpScaledRleRGBAImage(surface, image, itransform);
}
/************************************************************************/
/* RLE Direct RGBA Image */
/************************************************************************/
static bool _rasterDirectMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Direct Masked Rle Image");
auto span = image->rle->spans;
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
auto alpha = _multiplyAlpha(span->coverage, opacity);
if (alpha == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++img) {
auto tmp = ALPHA_BLEND(*img, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++img) {
auto tmp = ALPHA_BLEND(*img, _multiplyAlpha(alpha, blendMethod(*cmp)));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool __rasterDirectTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity)
{
auto span = image->rle->spans;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
auto alpha = _multiplyAlpha(span->coverage, opacity);
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++img) {
auto src = ALPHA_BLEND(*img, alpha);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterDirectTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterDirectMaskedRleRGBAImage(surface, image, opacity, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterDirectMaskedRleRGBAImage(surface, image, opacity, surface->blender.ialpha);
}
}
return __rasterDirectTranslucentRleRGBAImage(surface, image, opacity);
}
static bool _rasterDirectRleRGBAImage(SwSurface* surface, const SwImage* image)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
auto span = image->rle->spans;
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
if (span->coverage == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++img) {
*dst = *img + ALPHA_BLEND(*dst, surface->blender.ialpha(*img));
}
} else {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++img) {
auto src = ALPHA_BLEND(*img, span->coverage);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
}
return true;
}
/************************************************************************/
/* Whole Transformed Translucent RGBA Image */
/************************************************************************/
static bool _rasterTransformedMaskedRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Transformed Masked Image");
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto cbuffer = &surface->compositor->image.data[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto cmp = cbuffer;
float ey1 = y * itransform->e12 + itransform->e13;
float ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = ALPHA_BLEND(img[rX + (rY * image->stride)], _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
cbuffer += surface->stride;
}
return true;
}
static bool _rasterTransformedTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = ALPHA_BLEND(img[rX + (rY * image->stride)], opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
}
return true;
}
static bool _rasterDownScaledMaskedRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Down Scaled Masked Image");
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto cbuffer = &surface->compositor->image.data[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto cmp = cbuffer;
float ey1 = y * itransform->e12 + itransform->e13;
float ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) {
src = ALPHA_BLEND(img[rX + (rY * image->stride)], _multiplyAlpha(opacity, blendMethod(*cmp)));
} else {
src = ALPHA_BLEND(_interpDownScaler(img, image->stride, h, rX, rY, halfScale), _multiplyAlpha(opacity, blendMethod(*cmp)));
}
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
cbuffer += surface->stride;
}
return true;
}
static bool _rasterDownScaledTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = ALPHA_BLEND(img[rX + (rY * w)], opacity);
else src = ALPHA_BLEND(_interpDownScaler(img, w, h, rX, rY, halfScale), opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
}
return true;
}
static bool _rasterUpScaledMaskedRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Up Scaled Masked Image");
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto cbuffer = &surface->compositor->image.data[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto cmp = cbuffer;
float ey1 = y * itransform->e12 + itransform->e13;
float ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
auto fX = x * itransform->e11 + ey1;
auto fY = x * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rX + (rY * image->stride)], _multiplyAlpha(opacity, blendMethod(*cmp)));
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
cbuffer += surface->stride;
}
return true;
}
static bool _rasterUpScaledTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto fX = x * itransform->e11 + ey1;
auto fY = x * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = ALPHA_BLEND(img[rX + (rY * image->stride)], opacity);
else src = ALPHA_BLEND(_interpUpScaler(img, image->stride, h, fX, fY), opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
}
return true;
}
static bool _rasterTransformedTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
//Transformd
if (mathEqual(image->scale, 1.0f)) {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTransformedMaskedRGBAImage(surface, image, opacity, region, itransform, surface->blender.alpha);
}
if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTransformedMaskedRGBAImage(surface, image, opacity, region, itransform, surface->blender.ialpha);
}
}
return _rasterTransformedTranslucentRGBAImage(surface, image, opacity, region, itransform);
//Transformed + DownScaled
} else if (image->scale < DOWN_SCALE_TOLERANCE) {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterDownScaledMaskedRGBAImage(surface, image, opacity, region, itransform, halfScale, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterDownScaledMaskedRGBAImage(surface, image, opacity, region, itransform, halfScale, surface->blender.ialpha);
}
}
return _rasterDownScaledTranslucentRGBAImage(surface, image, opacity, region, itransform, halfScale);
//Transformed + UpScaled
} else {
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterUpScaledMaskedRGBAImage(surface, image, opacity, region, itransform, surface->blender.alpha);
}else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterUpScaledMaskedRGBAImage(surface, image, opacity, region, itransform, surface->blender.ialpha);
}
}
return _rasterUpScaledTranslucentRGBAImage(surface, image, opacity, region, itransform);
}
}
/************************************************************************/
/* Whole Transformed RGBA Image */
/************************************************************************/
static bool _rasterTransformedRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, const Matrix* itransform)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = &surface->buffer[y * surface->stride + region.min.x];
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto src = img[rX + (rY * image->stride)];
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterDownScaledRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = &surface->buffer[y * surface->stride + region.min.x];
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto rX = static_cast<uint32_t>(roundf(x * itransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * itransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX < halfScale || rY < halfScale || rX >= w - halfScale || rY >= h - halfScale) src = img[rX + (rY * w)];
else src = _interpDownScaler(img, w, h, rX, rY, halfScale);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterUpScaledRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, const Matrix* itransform)
{
auto img = image->data;
auto w = image->w;
auto h = image->h;
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = &surface->buffer[y * surface->stride + region.min.x];
auto ey1 = y * itransform->e12 + itransform->e13;
auto ey2 = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto fX = x * itransform->e11 + ey1;
auto fY = x * itransform->e21 + ey2;
auto rX = static_cast<uint32_t>(roundf(fX));
auto rY = static_cast<uint32_t>(roundf(fY));
if (rX >= w || rY >= h) continue;
uint32_t src;
if (rX == w - 1 || rY == h - 1) src = img[rX + (rY * w)];
else src = _interpUpScaler(img, w, h, fX, fY);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
return true;
}
static bool _rasterTransformedRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
if (mathEqual(image->scale, 1.0f)) return _rasterTransformedRGBAImage(surface, image, region, itransform);
else if (image->scale < DOWN_SCALE_TOLERANCE) return _rasterDownScaledRGBAImage(surface, image, region, itransform, halfScale);
else return _rasterUpScaledRGBAImage(surface, image, region, itransform);
}
/************************************************************************/
/* Whole Scaled RGBA Image */
/************************************************************************/
static bool _rasterScaledMaskedRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
{
TVGLOG("SW_ENGINE", "Scaled Masked Image");
//Top, Bottom Lines
SwCoord ys[2] = {region.min.y, region.max.y - 1};
for (auto i = 0; i < 2; ++i) {
auto y = ys[i];
auto dst = surface->buffer + (y * surface->stride + region.min.x);
auto cmp = surface->compositor->image.data + (y * surface->stride + region.min.x);
auto img = image->data + static_cast<uint32_t>(y * itransform->e22 + itransform->e23) * image->stride;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
auto src = ALPHA_BLEND(img[static_cast<uint32_t>(x * itransform->e11 + itransform->e13)], _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Left, Right Lines
SwCoord xs[2] = {region.min.x, region.max.x - 1};
for (auto i = 0; i < 2; ++i) {
auto x = xs[i];
auto dst = surface->buffer + ((region.min.y + 1) * surface->stride + x);
auto cmp = surface->compositor->image.data + ((region.min.y + 1) * surface->stride + x);
auto img = image->data + static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y, dst += surface->stride, cmp += surface->stride) {
auto src = ALPHA_BLEND(img[static_cast<uint32_t>(y * itransform->e22 + itransform->e23) * image->stride], _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Center (Down-Scaled)
if (image->scale < DOWN_SCALE_TOLERANCE) {
auto dbuffer = surface->buffer + ((region.min.y + 1) * surface->stride + (region.min.x + 1));
auto cbuffer = surface->compositor->image.data + ((region.min.y + 1) * surface->stride + (region.min.x + 1));
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y) {
auto dst = dbuffer;
auto cmp = cbuffer;
auto sy = static_cast<uint32_t>(y * itransform->e22 + itransform->e23);
for (auto x = region.min.x + 1; x < region.max.x - 1; ++x, ++dst, ++cmp) {
auto sx = static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->w, image->h, sx, sy, halfScale), _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
cbuffer += surface->compositor->image.stride;
}
//Center (Up-Scaled)
} else {
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride + region.min.x);
for (auto y = region.min.y; y < region.max.y - 1; ++y) {
auto dst = dbuffer;
auto cmp = cbuffer;
auto sy = y * itransform->e22 + itransform->e23;
for (auto x = region.min.x; x < region.max.x - 1; ++x, ++dst, ++cmp) {
auto sx = x * itransform->e11 + itransform->e13;
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
dbuffer += surface->stride;
cbuffer += surface->compositor->image.stride;
}
}
return true;
}
static bool __rasterScaledTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
//Top, Bottom Lines
SwCoord ys[2] = {region.min.y, region.max.y - 1};
for (auto i = 0; i < 2; ++i) {
auto y = ys[i];
auto dst = surface->buffer + (y * surface->stride + region.min.x);
auto img = image->data + static_cast<uint32_t>(y * itransform->e22 + itransform->e23) * image->stride;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto src = ALPHA_BLEND(img[static_cast<uint32_t>(x * itransform->e11 + itransform->e13)], opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Left, Right Lines
SwCoord xs[2] = {region.min.x, region.max.x - 1};
for (auto i = 0; i < 2; ++i) {
auto x = xs[i];
auto dst = surface->buffer + ((region.min.y + 1) * surface->stride + x);
auto img = image->data + static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y, dst += surface->stride) {
auto src = ALPHA_BLEND(img[static_cast<uint32_t>(y * itransform->e22 + itransform->e23) * image->stride], opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Center (Down-Scaled)
if (image->scale < DOWN_SCALE_TOLERANCE) {
auto dbuffer = surface->buffer + ((region.min.y + 1) * surface->stride + (region.min.x + 1));
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y, dbuffer += surface->stride) {
auto sy = static_cast<uint32_t>(y * itransform->e22 + itransform->e23);
auto dst = dbuffer;
for (auto x = region.min.x + 1; x < region.max.x - 1; ++x, ++dst) {
auto sx = static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->w, image->h, sx, sy, halfScale), opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Center (Up-Scaled)
} else {
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
for (auto y = region.min.y; y < region.max.y - 1; ++y, dbuffer += surface->stride) {
auto sy = y * itransform->e22 + itransform->e23;
auto dst = dbuffer;
for (auto x = region.min.x; x < region.max.x - 1; ++x, ++dst) {
auto sx = x * itransform->e11 + itransform->e13;
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), opacity);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
}
return true;
}
static bool _rasterScaledTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterScaledMaskedRGBAImage(surface, image, opacity, region, itransform, halfScale, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterScaledMaskedRGBAImage(surface, image, opacity, region, itransform, halfScale, surface->blender.ialpha);
}
}
return __rasterScaledTranslucentRGBAImage(surface, image, opacity, region, itransform, halfScale);
}
static bool _rasterScaledRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, const Matrix* itransform, uint32_t halfScale)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
//Top, Bottom Lines
SwCoord ys[2] = {region.min.y, region.max.y - 1};
for (auto i = 0; i < 2; ++i) {
auto y = ys[i];
auto dst = surface->buffer + (y * surface->stride + region.min.x);
auto img = image->data + static_cast<uint32_t>((y * itransform->e22 + itransform->e23)) * image->stride;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
auto src = img[static_cast<uint32_t>(x * itransform->e11 + itransform->e13)];
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Left, Right Lines
SwCoord xs[2] = {region.min.x, region.max.x - 1};
for (auto i = 0; i < 2; ++i) {
auto x = xs[i];
auto dst = surface->buffer + ((region.min.y + 1) * surface->stride + x);
auto img = image->data + static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y, dst += surface->stride) {
auto src = img[static_cast<uint32_t>(y * itransform->e22 + itransform->e23) * image->stride];
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Center (Down-Scaled)
if (image->scale < DOWN_SCALE_TOLERANCE) {
auto dbuffer = surface->buffer + ((region.min.y + 1) * surface->stride + (region.min.x + 1));
for (auto y = region.min.y + 1; y < region.max.y - 1; ++y, dbuffer += surface->stride) {
auto sy = static_cast<uint32_t>(y * itransform->e22 + itransform->e23);
auto dst = dbuffer;
for (auto x = region.min.x + 1; x < region.max.x - 1; ++x, ++dst) {
auto sx = static_cast<uint32_t>(x * itransform->e11 + itransform->e13);
auto src = _interpDownScaler(image->data, image->w, image->h, sx, sy, halfScale);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
//Center (Up-Scaled)
} else {
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
for (auto y = region.min.y; y < region.max.y - 1; ++y, dbuffer += surface->stride) {
auto sy = y * itransform->e22 + itransform->e23;
auto dst = dbuffer;
for (auto x = region.min.x; x < region.max.x - 1; ++x, ++dst) {
auto sx = x * itransform->e11 + itransform->e13;
auto src = _interpUpScaler(image->data, image->w, image->h, sx, sy);
*dst = src + ALPHA_BLEND(*dst, surface->blender.ialpha(src));
}
}
}
return true;
}
/************************************************************************/
/* Whole Direct RGBA Image */
/************************************************************************/
static bool _rasterDirectMaskedRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region, uint32_t (*blendMethod)(uint32_t))
{
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h2 = static_cast<uint32_t>(region.max.y - region.min.y);
auto w2 = static_cast<uint32_t>(region.max.x - region.min.x);
TVGLOG("SW_ENGINE", "Direct Masked Image");
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride) + region.min.x; //compositor buffer
for (uint32_t y = 0; y < h2; ++y) {
auto dst = buffer;
auto cmp = cbuffer;
auto src = sbuffer;
for (uint32_t x = 0; x < w2; ++x, ++dst, ++src, ++cmp) {
auto tmp = ALPHA_BLEND(*src, _multiplyAlpha(opacity, blendMethod(*cmp)));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
buffer += surface->stride;
cbuffer += surface->stride;
sbuffer += image->stride;
}
return true;
}
static bool __rasterDirectTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region)
{
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto src = sbuffer;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++src) {
auto p = ALPHA_BLEND(*src, opacity);
*dst = p + ALPHA_BLEND(*dst, surface->blender.ialpha(p));
}
dbuffer += surface->stride;
sbuffer += image->stride;
}
return true;
}
static bool _rasterDirectTranslucentRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterDirectMaskedRGBAImage(surface, image, opacity, region, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterDirectMaskedRGBAImage(surface, image, opacity, region, surface->blender.ialpha);
}
}
return __rasterDirectTranslucentRGBAImage(surface, image, opacity, region);
}
static bool _rasterDirectRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region)
{
//TODO: Blenders for the following scenarios: [Opacity / Composition / Opacity + Composition]
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
auto src = sbuffer;
for (auto x = region.min.x; x < region.max.x; x++, dst++, src++) {
*dst = *src + ALPHA_BLEND(*dst, surface->blender.ialpha(*src));
}
dbuffer += surface->stride;
sbuffer += image->stride;
}
return true;
}
//Blenders for the following scenarios: [RLE / Whole] * [Direct / Scaled / Transformed]
static bool _rasterRGBAImage(SwSurface* surface, SwImage* image, const Matrix* transform, const SwBBox& bbox, uint32_t opacity)
{
Matrix itransform;
if (transform && !mathInverse(transform, &itransform)) return false;
auto halfScale = static_cast<uint32_t>(0.5f / image->scale);
if (halfScale == 0) halfScale = 1;
//OPTIMIZE_ME: we can split the condition: Opacity & Composition!
auto translucent = _translucent(surface, opacity);
//RLE Image
if (image->rle) {
if (image->direct) {
if (translucent) return _rasterDirectTranslucentRleRGBAImage(surface, image, opacity);
else return _rasterDirectRleRGBAImage(surface, image);
} else {
if (translucent) return _rasterTransformedTranslucentRleRGBAImage(surface, image, opacity, &itransform, halfScale);
else return _rasterTransformedRleRGBAImage(surface, image, &itransform, halfScale);
}
//Whole Image
} else {
if (image->direct) {
if (translucent) return _rasterDirectTranslucentRGBAImage(surface, image, opacity, bbox);
else return _rasterDirectRGBAImage(surface, image, bbox);
} else if (image->scaled) {
if (translucent) return _rasterScaledTranslucentRGBAImage(surface, image, opacity, bbox, &itransform, halfScale);
else return _rasterScaledRGBAImage(surface, image, bbox, &itransform, halfScale);
} else {
//OPTIMIZE_ME: Replace with the TexMap Rasterizer
if (translucent) return _rasterTransformedTranslucentRGBAImage(surface, image, opacity, bbox, &itransform, halfScale);
else return _rasterTransformedRGBAImage(surface, image, bbox, &itransform, halfScale);
}
}
}
/************************************************************************/
/* Rect Linear Gradient */
/************************************************************************/
static bool _rasterTranslucentLinearGradientMaskedRect(SwSurface* surface, const SwBBox& region, const SwFill* fill, uint32_t (*blendMethod)(uint32_t))
{
if (fill->linear.len < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride) + region.min.x;
auto sbuffer = static_cast<uint32_t*>(alloca(w * sizeof(uint32_t)));
if (!sbuffer) return false;
for (uint32_t y = 0; y < h; ++y) {
fillFetchLinear(fill, sbuffer, region.min.y + y, region.min.x, w);
auto dst = buffer;
auto cmp = cbuffer;
auto src = sbuffer;
for (uint32_t x = 0; x < w; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
buffer += surface->stride;
cbuffer += surface->stride;
}
return true;
}
static bool __rasterTranslucentLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (fill->linear.len < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto sbuffer = static_cast<uint32_t*>(alloca(w * sizeof(uint32_t)));
if (!sbuffer) return false;
auto dst = buffer;
for (uint32_t y = 0; y < h; ++y) {
fillFetchLinear(fill, sbuffer, region.min.y + y, region.min.x, w);
for (uint32_t x = 0; x < w; ++x) {
dst[x] = sbuffer[x] + ALPHA_BLEND(dst[x], surface->blender.ialpha(sbuffer[x]));
}
dst += surface->stride;
}
return true;
}
static bool _rasterTranslucentLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentLinearGradientMaskedRect(surface, region, fill, surface->blender.alpha);
}
if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentLinearGradientMaskedRect(surface, region, fill, surface->blender.ialpha);
}
}
return __rasterTranslucentLinearGradientRect(surface, region, fill);
}
static bool _rasterSolidLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (fill->linear.len < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
for (uint32_t y = 0; y < h; ++y) {
fillFetchLinear(fill, buffer + y * surface->stride, region.min.y + y, region.min.x, w);
}
return true;
}
/************************************************************************/
/* Rle Linear Gradient */
/************************************************************************/
static bool _rasterTranslucentLinearGradientMaskedRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill, uint32_t (*blendMethod)(uint32_t))
{
if (fill->linear.len < FLT_EPSILON) return false;
auto span = rle->spans;
auto cbuffer = surface->compositor->image.data;
auto buffer = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buffer) return false;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
fillFetchLinear(fill, buffer, span->y, span->x, span->len);
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto src = buffer;
if (span->coverage == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
auto ialpha = 255 - span->coverage;
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
tmp = ALPHA_BLEND(tmp, span->coverage) + ALPHA_BLEND(*dst, ialpha);
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool __rasterTranslucentLinearGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (fill->linear.len < FLT_EPSILON) return false;
auto span = rle->spans;
auto buffer = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buffer) return false;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
fillFetchLinear(fill, buffer, span->y, span->x, span->len);
if (span->coverage == 255) {
for (uint32_t i = 0; i < span->len; ++i) {
dst[i] = buffer[i] + ALPHA_BLEND(dst[i], surface->blender.ialpha(buffer[i]));
}
} else {
for (uint32_t i = 0; i < span->len; ++i) {
auto tmp = ALPHA_BLEND(buffer[i], span->coverage);
dst[i] = tmp + ALPHA_BLEND(dst[i], surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool _rasterTranslucentLinearGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (!rle) return false;
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentLinearGradientMaskedRle(surface, rle, fill, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentLinearGradientMaskedRle(surface, rle, fill, surface->blender.ialpha);
}
}
return __rasterTranslucentLinearGradientRle(surface, rle, fill);
}
static bool _rasterSolidLinearGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (fill->linear.len < FLT_EPSILON) return false;
auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buf) return false;
auto span = rle->spans;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
if (span->coverage == 255) {
fillFetchLinear(fill, surface->buffer + span->y * surface->stride + span->x, span->y, span->x, span->len);
} else {
fillFetchLinear(fill, buf, span->y, span->x, span->len);
auto ialpha = 255 - span->coverage;
auto dst = &surface->buffer[span->y * surface->stride + span->x];
for (uint32_t i = 0; i < span->len; ++i) {
dst[i] = ALPHA_BLEND(buf[i], span->coverage) + ALPHA_BLEND(dst[i], ialpha);
}
}
}
return true;
}
/************************************************************************/
/* Rect Radial Gradient */
/************************************************************************/
static bool _rasterTranslucentRadialGradientMaskedRect(SwSurface* surface, const SwBBox& region, const SwFill* fill, uint32_t (*blendMethod)(uint32_t))
{
if (fill->radial.a < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride) + region.min.x;
auto sbuffer = static_cast<uint32_t*>(alloca(w * sizeof(uint32_t)));
if (!sbuffer) return false;
for (uint32_t y = 0; y < h; ++y) {
fillFetchRadial(fill, sbuffer, region.min.y + y, region.min.x, w);
auto dst = buffer;
auto cmp = cbuffer;
auto src = sbuffer;
for (uint32_t x = 0; x < w; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
buffer += surface->stride;
cbuffer += surface->stride;
}
return true;
}
static bool __rasterTranslucentRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (fill->radial.a < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto sbuffer = static_cast<uint32_t*>(alloca(w * sizeof(uint32_t)));
if (!sbuffer) return false;
auto dst = buffer;
for (uint32_t y = 0; y < h; ++y) {
fillFetchRadial(fill, sbuffer, region.min.y + y, region.min.x, w);
for (uint32_t x = 0; x < w; ++x) {
dst[x] = sbuffer[x] + ALPHA_BLEND(dst[x], surface->blender.ialpha(sbuffer[x]));
}
dst += surface->stride;
}
return true;
}
static bool _rasterTranslucentRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentRadialGradientMaskedRect(surface, region, fill, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentRadialGradientMaskedRect(surface, region, fill, surface->blender.ialpha);
}
}
return __rasterTranslucentRadialGradientRect(surface, region, fill);
}
static bool _rasterSolidRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
if (fill->radial.a < FLT_EPSILON) return false;
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
for (uint32_t y = 0; y < h; ++y) {
auto dst = &buffer[y * surface->stride];
fillFetchRadial(fill, dst, region.min.y + y, region.min.x, w);
}
return true;
}
/************************************************************************/
/* RLE Radial Gradient */
/************************************************************************/
static bool _rasterTranslucentRadialGradientMaskedRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill, uint32_t (*blendMethod)(uint32_t))
{
if (fill->radial.a < FLT_EPSILON) return false;
auto span = rle->spans;
auto cbuffer = surface->compositor->image.data;
auto buffer = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buffer) return false;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
fillFetchRadial(fill, buffer, span->y, span->x, span->len);
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto src = buffer;
if (span->coverage == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
} else {
auto ialpha = 255 - span->coverage;
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++src) {
auto tmp = ALPHA_BLEND(*src, blendMethod(*cmp));
tmp = ALPHA_BLEND(tmp, span->coverage) + ALPHA_BLEND(*dst, ialpha);
*dst = tmp + ALPHA_BLEND(*dst, surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool __rasterTranslucentRadialGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (fill->radial.a < FLT_EPSILON) return false;
auto span = rle->spans;
auto buffer = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buffer) return false;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
fillFetchRadial(fill, buffer, span->y, span->x, span->len);
if (span->coverage == 255) {
for (uint32_t i = 0; i < span->len; ++i) {
dst[i] = buffer[i] + ALPHA_BLEND(dst[i], surface->blender.ialpha(buffer[i]));
}
} else {
for (uint32_t i = 0; i < span->len; ++i) {
auto tmp = ALPHA_BLEND(buffer[i], span->coverage);
dst[i] = tmp + ALPHA_BLEND(dst[i], surface->blender.ialpha(tmp));
}
}
}
return true;
}
static bool _rasterTranslucentRadialGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (!rle) return false;
if (surface->compositor) {
if (surface->compositor->method == CompositeMethod::AlphaMask) {
return _rasterTranslucentRadialGradientMaskedRle(surface, rle, fill, surface->blender.alpha);
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
return _rasterTranslucentRadialGradientMaskedRle(surface, rle, fill, surface->blender.ialpha);
}
}
return __rasterTranslucentRadialGradientRle(surface, rle, fill);
}
static bool _rasterSolidRadialGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
{
if (fill->radial.a < FLT_EPSILON) return false;
auto buf = static_cast<uint32_t*>(alloca(surface->w * sizeof(uint32_t)));
if (!buf) return false;
auto span = rle->spans;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
if (span->coverage == 255) {
fillFetchRadial(fill, dst, span->y, span->x, span->len);
} else {
fillFetchRadial(fill, buf, span->y, span->x, span->len);
auto ialpha = 255 - span->coverage;
for (uint32_t i = 0; i < span->len; ++i) {
dst[i] = ALPHA_BLEND(buf[i], span->coverage) + ALPHA_BLEND(dst[i], ialpha);
}
}
}
return true;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
void rasterRGBA32(uint32_t *dst, uint32_t val, uint32_t offset, int32_t len)
{
#if defined(THORVG_AVX_VECTOR_SUPPORT)
avxRasterRGBA32(dst, val, offset, len);
#elif defined(THORVG_NEON_VECTOR_SUPPORT)
neonRasterRGBA32(dst, val, offset, len);
#else
cRasterRGBA32(dst, val, offset, len);
#endif
}
bool rasterCompositor(SwSurface* surface)
{
if (surface->cs == SwCanvas::ABGR8888 || surface->cs == SwCanvas::ABGR8888_STRAIGHT) {
surface->blender.join = _abgrJoin;
} else if (surface->cs == SwCanvas::ARGB8888 || surface->cs == SwCanvas::ARGB8888_STRAIGHT) {
surface->blender.join = _argbJoin;
} else {
//What Color Space ???
return false;
}
surface->blender.alpha = _colorAlpha;
surface->blender.ialpha = _colorInvAlpha;
return true;
}
bool rasterGradientShape(SwSurface* surface, SwShape* shape, unsigned id)
{
if (!shape->fill) return false;
auto translucent = shape->fill->translucent || (surface->compositor && surface->compositor->method != CompositeMethod::None);
//Fast Track
if (shape->fastTrack) {
if (id == TVG_CLASS_ID_LINEAR) {
if (translucent) return _rasterTranslucentLinearGradientRect(surface, shape->bbox, shape->fill);
return _rasterSolidLinearGradientRect(surface, shape->bbox, shape->fill);
} else {
if (translucent) return _rasterTranslucentRadialGradientRect(surface, shape->bbox, shape->fill);
return _rasterSolidRadialGradientRect(surface, shape->bbox, shape->fill);
}
} else {
if (!shape->rle) return false;
if (id == TVG_CLASS_ID_LINEAR) {
if (translucent) return _rasterTranslucentLinearGradientRle(surface, shape->rle, shape->fill);
return _rasterSolidLinearGradientRle(surface, shape->rle, shape->fill);
} else {
if (translucent) return _rasterTranslucentRadialGradientRle(surface, shape->rle, shape->fill);
return _rasterSolidRadialGradientRle(surface, shape->rle, shape->fill);
}
}
return false;
}
bool rasterShape(SwSurface* surface, SwShape* shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
if (a < 255) {
r = _multiplyAlpha(r, a);
g = _multiplyAlpha(g, a);
b = _multiplyAlpha(b, a);
}
auto color = surface->blender.join(r, g, b, a);
auto translucent = _translucent(surface, a);
//Fast Track
if (shape->fastTrack) {
if (translucent) return _rasterTranslucentRect(surface, shape->bbox, color);
return _rasterSolidRect(surface, shape->bbox, color);
}
if (translucent) {
return _rasterTranslucentRle(surface, shape->rle, color);
}
return _rasterSolidRle(surface, shape->rle, color);
}
bool rasterStroke(SwSurface* surface, SwShape* shape, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
if (a < 255) {
r = _multiplyAlpha(r, a);
g = _multiplyAlpha(g, a);
b = _multiplyAlpha(b, a);
}
auto color = surface->blender.join(r, g, b, a);
auto translucent = _translucent(surface, a);
if (translucent) return _rasterTranslucentRle(surface, shape->strokeRle, color);
return _rasterSolidRle(surface, shape->strokeRle, color);
}
bool rasterGradientStroke(SwSurface* surface, SwShape* shape, unsigned id)
{
if (!shape->stroke || !shape->stroke->fill || !shape->strokeRle) return false;
auto translucent = shape->stroke->fill->translucent || (surface->compositor && surface->compositor->method != CompositeMethod::None);
if (id == TVG_CLASS_ID_LINEAR) {
if (translucent) return _rasterTranslucentLinearGradientRle(surface, shape->strokeRle, shape->stroke->fill);
return _rasterSolidLinearGradientRle(surface, shape->strokeRle, shape->stroke->fill);
} else {
if (translucent) return _rasterTranslucentRadialGradientRle(surface, shape->strokeRle, shape->stroke->fill);
return _rasterSolidRadialGradientRle(surface, shape->strokeRle, shape->stroke->fill);
}
return false;
}
bool rasterClear(SwSurface* surface)
{
if (!surface || !surface->buffer || surface->stride <= 0 || surface->w <= 0 || surface->h <= 0) return false;
if (surface->w == surface->stride) {
rasterRGBA32(surface->buffer, 0x00000000, 0, surface->w * surface->h);
} else {
for (uint32_t i = 0; i < surface->h; i++) {
rasterRGBA32(surface->buffer + surface->stride * i, 0x00000000, 0, surface->w);
}
}
return true;
}
void rasterUnpremultiply(SwSurface* surface)
{
//TODO: Create simd avx and neon version
for (uint32_t y = 0; y < surface->h; y++) {
auto buffer = surface->buffer + surface->stride * y;
for (uint32_t x = 0; x < surface->w; ++x) {
uint8_t a = buffer[x] >> 24;
if (a == 255) {
continue;
} else if (a == 0) {
buffer[x] = 0x00ffffff;
} else {
uint16_t r = ((buffer[x] >> 8) & 0xff00) / a;
uint16_t g = ((buffer[x]) & 0xff00) / a;
uint16_t b = ((buffer[x] << 8) & 0xff00) / a;
if (r > 0xff) r = 0xff;
if (g > 0xff) g = 0xff;
if (b > 0xff) b = 0xff;
buffer[x] = (a << 24) | (r << 16) | (g << 8) | (b);
}
}
}
}
bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, const SwBBox& bbox, uint32_t opacity)
{
//Verify Boundary
if (bbox.max.x < 0 || bbox.max.y < 0 || bbox.min.x >= surface->w || bbox.min.y >= surface->h) return false;
//TOOD: switch (image->format)
//TODO: case: _rasterRGBImage()
//TODO: case: _rasterGrayscaleImage()
//TODO: case: _rasterAlphaImage()
return _rasterRGBAImage(surface, image, transform, bbox, opacity);
}
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