mirror of
https://github.com/thorvg/thorvg.git
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05fefcf61f
Prevent out of buffer boundary access. @Issues: https://github.com/Samsung/thorvg/pull/1119
1497 lines
No EOL
61 KiB
C++
1497 lines
No EOL
61 KiB
C++
/*
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* Copyright (c) 2020-2021 Samsung Electronics Co., Ltd. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "tvgMath.h"
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#include "tvgRender.h"
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#include "tvgSwCommon.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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constexpr auto DOWN_SCALE_TOLERANCE = 0.5f;
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static inline uint32_t _multiplyAlpha(uint32_t c, uint32_t a)
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{
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return ((c * a + 0xff) >> 8);
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}
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static inline uint32_t _alpha(uint32_t c)
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{
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return (c >> 24);
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}
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static inline uint32_t _ialpha(uint32_t c)
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{
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return (~c >> 24);
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}
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static inline uint32_t _abgrJoin(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
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{
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return (a << 24 | b << 16 | g << 8 | r);
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}
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static inline uint32_t _argbJoin(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
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{
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return (a << 24 | r << 16 | g << 8 | b);
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}
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#include "tvgSwRasterTexmap.h"
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#include "tvgSwRasterC.h"
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#include "tvgSwRasterAvx.h"
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#include "tvgSwRasterNeon.h"
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static inline bool _compositing(const SwSurface* surface)
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{
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if (!surface->compositor || surface->compositor->method == CompositeMethod::None) return false;
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return true;
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}
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static inline uint32_t _halfScale(float scale)
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{
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auto halfScale = static_cast<uint32_t>(0.5f / scale);
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if (halfScale == 0) halfScale = 1;
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return halfScale;
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}
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//Bilinear Interpolation
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static uint32_t _interpUpScaler(const uint32_t *img, uint32_t w, uint32_t h, float sx, float sy)
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{
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auto rx = (uint32_t)(sx);
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auto ry = (uint32_t)(sy);
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auto rx2 = rx + 1;
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if (rx2 >= w) rx2 = w - 1;
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auto ry2 = ry + 1;
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if (ry2 >= h) ry2 = h - 1;
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auto dx = static_cast<uint32_t>((sx - rx) * 255.0f);
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auto dy = static_cast<uint32_t>((sy - ry) * 255.0f);
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auto c1 = img[rx + ry * w];
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auto c2 = img[rx2 + ry * w];
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auto c3 = img[rx2 + ry2 * w];
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auto c4 = img[rx + ry2 * w];
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return INTERPOLATE(dy, INTERPOLATE(dx, c3, c4), INTERPOLATE(dx, c2, c1));
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}
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//2n x 2n Mean Kernel
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static uint32_t _interpDownScaler(const uint32_t *img, uint32_t stride, uint32_t w, uint32_t h, uint32_t rx, uint32_t ry, uint32_t n)
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{
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uint32_t c[4] = {0, 0, 0, 0};
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auto n2 = n * n;
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auto src = img + rx - n + (ry - n) * stride;
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for (auto y = ry - n; y < ry + n; ++y) {
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if (y >= h) continue;
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auto p = src;
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for (auto x = rx - n; x < rx + n; ++x, ++p) {
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if (x >= w) continue;
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c[0] += *p >> 24;
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c[1] += (*p >> 16) & 0xff;
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c[2] += (*p >> 8) & 0xff;
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c[3] += *p & 0xff;
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}
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src += stride;
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}
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for (auto i = 0; i < 4; ++i) {
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c[i] = (c[i] >> 2) / n2;
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}
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return (c[0] << 24) | (c[1] << 16) | (c[2] << 8) | c[3];
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}
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/************************************************************************/
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/* Rect */
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/************************************************************************/
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static bool _rasterMaskedRect(SwSurface* surface, const SwBBox& region, uint32_t color, uint32_t (*blendMethod)(uint32_t))
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{
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TVGLOG("SW_ENGINE", "Masked Rect");
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auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
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auto w = static_cast<uint32_t>(region.max.x - region.min.x);
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auto h = static_cast<uint32_t>(region.max.y - region.min.y);
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auto cbuffer = surface->compositor->image.data + (region.min.y * surface->compositor->image.stride) + region.min.x; //compositor buffer
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for (uint32_t y = 0; y < h; ++y) {
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auto dst = &buffer[y * surface->stride];
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auto cmp = &cbuffer[y * surface->stride];
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for (uint32_t x = 0; x < w; ++x, ++dst, ++cmp) {
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auto tmp = ALPHA_BLEND(color, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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return true;
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}
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static bool _rasterSolidRect(SwSurface* surface, const SwBBox& region, uint32_t color)
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{
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auto buffer = surface->buffer + (region.min.y * surface->stride);
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auto w = static_cast<uint32_t>(region.max.x - region.min.x);
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auto h = static_cast<uint32_t>(region.max.y - region.min.y);
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for (uint32_t y = 0; y < h; ++y) {
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rasterRGBA32(buffer + y * surface->stride, color, region.min.x, w);
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}
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return true;
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}
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static bool _rasterRect(SwSurface* surface, const SwBBox& region, uint32_t color, uint8_t opacity)
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{
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if (_compositing(surface)) {
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if (surface->compositor->method == CompositeMethod::AlphaMask) {
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return _rasterMaskedRect(surface, region, color, _alpha);
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} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
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return _rasterMaskedRect(surface, region, color, _ialpha);
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}
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} else {
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if (opacity == 255) {
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return _rasterSolidRect(surface, region, color);
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} else {
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#if defined(THORVG_AVX_VECTOR_SUPPORT)
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return avxRasterTranslucentRect(surface, region, color);
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#elif defined(THORVG_NEON_VECTOR_SUPPORT)
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return neonRasterTranslucentRect(surface, region, color);
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#else
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return cRasterTranslucentRect(surface, region, color);
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#endif
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}
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}
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return false;
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}
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/************************************************************************/
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/* Rle */
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/************************************************************************/
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static bool _rasterMaskedRle(SwSurface* surface, SwRleData* rle, uint32_t color, uint32_t (*blendMethod)(uint32_t))
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{
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TVGLOG("SW_ENGINE", "Masked Rle");
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auto span = rle->spans;
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uint32_t src;
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auto cbuffer = surface->compositor->image.data;
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for (uint32_t i = 0; i < rle->size; ++i, ++span) {
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto cmp = &cbuffer[span->y * surface->compositor->image.stride + span->x];
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if (span->coverage == 255) src = color;
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else src = ALPHA_BLEND(color, span->coverage);
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for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp) {
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auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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return true;
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}
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static bool _rasterSolidRle(SwSurface* surface, const SwRleData* rle, uint32_t color)
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{
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auto span = rle->spans;
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for (uint32_t i = 0; i < rle->size; ++i, ++span) {
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if (span->coverage == 255) {
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rasterRGBA32(surface->buffer + span->y * surface->stride, color, span->x, span->len);
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} else {
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto src = ALPHA_BLEND(color, span->coverage);
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auto ialpha = 255 - span->coverage;
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for (uint32_t x = 0; x < span->len; ++x, ++dst) {
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*dst = src + ALPHA_BLEND(*dst, ialpha);
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}
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}
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}
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return true;
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}
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static bool _rasterRle(SwSurface* surface, SwRleData* rle, uint32_t color, uint8_t opacity)
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{
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if (!rle) return false;
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if (_compositing(surface)) {
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if (surface->compositor->method == CompositeMethod::AlphaMask) {
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return _rasterMaskedRle(surface, rle, color, _alpha);
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} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
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return _rasterMaskedRle(surface, rle, color, _ialpha);
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}
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} else {
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if (opacity == 255) {
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return _rasterSolidRle(surface, rle, color);
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} else {
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#if defined(THORVG_AVX_VECTOR_SUPPORT)
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return avxRasterTranslucentRle(surface, rle, color);
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#elif defined(THORVG_NEON_VECTOR_SUPPORT)
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return neonRasterTranslucentRle(surface, rle, color);
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#else
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return cRasterTranslucentRle(surface, rle, color);
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#endif
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}
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}
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return false;
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}
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/************************************************************************/
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/* RLE Transformed RGBA Image */
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/************************************************************************/
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static bool _transformedRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* transform, uint32_t opacity)
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{
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if (_compositing(surface)) {
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if (surface->compositor->method == CompositeMethod::AlphaMask) {
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return _rasterTexmapPolygon(surface, image, transform, nullptr, opacity, _alpha);
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} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
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return _rasterTexmapPolygon(surface, image, transform, nullptr, opacity, _ialpha);
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}
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} else {
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return _rasterTexmapPolygon(surface, image, transform, nullptr, opacity, nullptr);
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}
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return false;
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}
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/************************************************************************/
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/* RLE Scaled RGBA Image */
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/************************************************************************/
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static bool _rasterScaledMaskedTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t opacity, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
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{
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TVGLOG("SW_ENGINE", "Scaled Masked Translucent Rle Image");
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auto span = image->rle->spans;
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//Center (Down-Scaled)
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if (image->scale < DOWN_SCALE_TOLERANCE) {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = (uint32_t)(span->y * itransform->e22 + itransform->e23);
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if (sy >= image->h) continue;
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto cmp = &surface->compositor->image.data[span->y * surface->compositor->image.stride + span->x];
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auto alpha = _multiplyAlpha(span->coverage, opacity);
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
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if (sx >= image->w) continue;
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auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), alpha);
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auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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//Center (Up-Scaled)
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} else {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = span->y * itransform->e22 + itransform->e23;
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if ((uint32_t)sy >= image->h) continue;
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto cmp = &surface->compositor->image.data[span->y * surface->compositor->image.stride + span->x];
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auto alpha = _multiplyAlpha(span->coverage, opacity);
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = x * itransform->e11 + itransform->e13;
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if ((uint32_t)sx >= image->w) continue;
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auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), alpha);
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auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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}
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return true;
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}
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static bool _rasterScaledMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
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{
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TVGLOG("SW_ENGINE", "Scaled Masked Rle Image");
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auto span = image->rle->spans;
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//Center (Down-Scaled)
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if (image->scale < DOWN_SCALE_TOLERANCE) {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = (uint32_t)(span->y * itransform->e22 + itransform->e23);
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if (sy >= image->h) continue;
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto cmp = &surface->compositor->image.data[span->y * surface->compositor->image.stride + span->x];
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if (span->coverage == 255) {
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
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if (sx >= image->w) continue;
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auto tmp = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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} else {
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
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if (sx >= image->w) continue;
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auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), span->coverage);
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auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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}
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//Center (Up-Scaled)
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} else {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = span->y * itransform->e22 + itransform->e23;
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if ((uint32_t)sy >= image->h) continue;
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto cmp = &surface->compositor->image.data[span->y * surface->compositor->image.stride + span->x];
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if (span->coverage == 255) {
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = x * itransform->e11 + itransform->e13;
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if ((uint32_t)sx >= image->w) continue;
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auto tmp = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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} else {
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst, ++cmp) {
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auto sx = x * itransform->e11 + itransform->e13;
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if ((uint32_t)sx >= image->w) continue;
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auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), span->coverage);
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auto tmp = ALPHA_BLEND(src, blendMethod(*cmp));
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*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
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}
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}
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}
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}
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return true;
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}
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static bool _rasterScaledTranslucentRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t opacity, uint32_t halfScale)
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{
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auto span = image->rle->spans;
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//Center (Down-Scaled)
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if (image->scale < DOWN_SCALE_TOLERANCE) {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = (uint32_t)(span->y * itransform->e22 + itransform->e23);
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if (sy >= image->h) continue;
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auto dst = &surface->buffer[span->y * surface->stride + span->x];
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auto alpha = _multiplyAlpha(span->coverage, opacity);
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for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
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auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
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if (sx >= image->w) continue;
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auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), alpha);
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*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
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}
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}
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//Center (Up-Scaled)
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} else {
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for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
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auto sy = span->y * itransform->e22 + itransform->e23;
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if ((uint32_t)sy >= image->h) continue;
|
|
auto dst = &surface->buffer[span->y * surface->stride + span->x];
|
|
auto alpha = _multiplyAlpha(span->coverage, opacity);
|
|
for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), alpha);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterScaledRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t opacity, uint32_t halfScale)
|
|
{
|
|
auto span = image->rle->spans;
|
|
|
|
//Center (Down-Scaled)
|
|
if (image->scale < DOWN_SCALE_TOLERANCE) {
|
|
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
|
|
auto sy = (uint32_t)(span->y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = &surface->buffer[span->y * surface->stride + span->x];
|
|
if (span->coverage == 255) {
|
|
for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto src = _interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
} else {
|
|
for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), span->coverage);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
//Center (Up-Scaled)
|
|
} else {
|
|
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
|
|
auto sy = span->y * itransform->e22 + itransform->e23;
|
|
if ((uint32_t)sy >= image->h) continue;
|
|
auto dst = &surface->buffer[span->y * surface->stride + span->x];
|
|
if (span->coverage == 255) {
|
|
for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = _interpUpScaler(image->data, image->w, image->h, sx, sy);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
} else {
|
|
for (uint32_t x = static_cast<uint32_t>(span->x); x < static_cast<uint32_t>(span->x) + span->len; ++x, ++dst) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), span->coverage);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _scaledRleRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* transform, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
Matrix itransform;
|
|
if (transform && !mathInverse(transform, &itransform)) return false;
|
|
|
|
auto halfScale = _halfScale(image->scale);
|
|
|
|
if (_compositing(surface)) {
|
|
if (opacity == 255) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterScaledMaskedRleRGBAImage(surface, image, &itransform, region, halfScale, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterScaledMaskedRleRGBAImage(surface, image, &itransform, region, halfScale, _ialpha);
|
|
}
|
|
} else {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterScaledMaskedTranslucentRleRGBAImage(surface, image, &itransform, region, opacity, halfScale, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterScaledMaskedTranslucentRleRGBAImage(surface, image, &itransform, region, opacity, halfScale, _ialpha);
|
|
}
|
|
}
|
|
} else {
|
|
if (opacity == 255) return _rasterScaledRleRGBAImage(surface, image, &itransform, region, opacity, halfScale);
|
|
else return _rasterScaledTranslucentRleRGBAImage(surface, image, &itransform, region, opacity, halfScale);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* RLE Direct RGBA Image */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterDirectMaskedTranslucentRleRGBAImage(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->compositor->image.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, _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, _ialpha(tmp));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterDirectMaskedRleRGBAImage(SwSurface* surface, const SwImage* image, 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->compositor->image.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, ++cmp, ++img) {
|
|
auto tmp = ALPHA_BLEND(*img, blendMethod(*cmp));
|
|
*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
|
|
}
|
|
} else {
|
|
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++img) {
|
|
auto tmp = ALPHA_BLEND(*img, _multiplyAlpha(span->coverage, blendMethod(*cmp)));
|
|
*dst = tmp + ALPHA_BLEND(*dst, _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, _ialpha(src));
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterDirectRleRGBAImage(SwSurface* surface, const SwImage* image)
|
|
{
|
|
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, _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, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _directRleRGBAImage(SwSurface* surface, const SwImage* image, uint32_t opacity)
|
|
{
|
|
if (_compositing(surface)) {
|
|
if (opacity == 255) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterDirectMaskedRleRGBAImage(surface, image, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterDirectMaskedRleRGBAImage(surface, image, _ialpha);
|
|
}
|
|
} else {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterDirectMaskedTranslucentRleRGBAImage(surface, image, opacity, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterDirectMaskedTranslucentRleRGBAImage(surface, image, opacity, _ialpha);
|
|
}
|
|
}
|
|
} else {
|
|
if (opacity == 255) return _rasterDirectRleRGBAImage(surface, image);
|
|
else return _rasterDirectTranslucentRleRGBAImage(surface, image, opacity);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* Transformed RGBA Image */
|
|
/************************************************************************/
|
|
|
|
static bool _transformedRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* transform, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
if (_compositing(surface)) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterTexmapPolygon(surface, image, transform, ®ion, opacity, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterTexmapPolygon(surface, image, transform, ®ion, opacity, _ialpha);
|
|
}
|
|
} else {
|
|
return _rasterTexmapPolygon(surface, image, transform, ®ion, opacity, nullptr);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/*Scaled RGBA Image */
|
|
/************************************************************************/
|
|
|
|
|
|
static bool _rasterScaledMaskedTranslucentRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t opacity, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
|
|
{
|
|
TVGLOG("SW_ENGINE", "Scaled Masked Image");
|
|
|
|
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
|
|
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->compositor->image.stride + region.min.x);
|
|
|
|
// Down-Scaled
|
|
if (image->scale < DOWN_SCALE_TOLERANCE) {
|
|
for (auto y = region.min.y; y < region.max.y; ++y) {
|
|
auto sy = (uint32_t)(y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
auto cmp = cbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto alpha = _multiplyAlpha(opacity, blendMethod(*cmp));
|
|
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), alpha);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
dbuffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
}
|
|
// Up-Scaled
|
|
} else {
|
|
for (auto y = region.min.y; y < region.max.y; ++y) {
|
|
auto sy = y * itransform->e22 + itransform->e23;
|
|
if ((uint32_t)sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
auto cmp = cbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto alpha = _multiplyAlpha(opacity, blendMethod(*cmp));
|
|
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), alpha);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
dbuffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterScaledMaskedRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t halfScale, uint32_t (*blendMethod)(uint32_t))
|
|
{
|
|
TVGLOG("SW_ENGINE", "Scaled Masked Image");
|
|
|
|
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
|
|
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->compositor->image.stride + region.min.x);
|
|
|
|
// Down-Scaled
|
|
if (image->scale < DOWN_SCALE_TOLERANCE) {
|
|
for (auto y = region.min.y; y < region.max.y; ++y) {
|
|
auto sy = (uint32_t)(y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
auto cmp = cbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), blendMethod(*cmp));
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
dbuffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
}
|
|
// Up-Scaled
|
|
} else {
|
|
for (auto y = region.min.y; y < region.max.y; ++y) {
|
|
auto sy = y * itransform->e22 + itransform->e23;
|
|
if ((uint32_t)sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
auto cmp = cbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst, ++cmp) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), blendMethod(*cmp));
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
dbuffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterScaledTranslucentRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t opacity, uint32_t halfScale)
|
|
{
|
|
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
|
|
|
|
// Down-Scaled
|
|
if (image->scale < DOWN_SCALE_TOLERANCE) {
|
|
for (auto y = region.min.y; y < region.max.y; ++y, dbuffer += surface->stride) {
|
|
auto sy = (uint32_t)(y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale), opacity);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
// Up-Scaled
|
|
} else {
|
|
for (auto y = region.min.y; y < region.max.y; ++y, dbuffer += surface->stride) {
|
|
auto sy = fabsf(y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = ALPHA_BLEND(_interpUpScaler(image->data, image->w, image->h, sx, sy), opacity);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterScaledRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint32_t halfScale)
|
|
{
|
|
auto dbuffer = surface->buffer + (region.min.y * surface->stride + region.min.x);
|
|
|
|
// Down-Scaled
|
|
if (image->scale < DOWN_SCALE_TOLERANCE) {
|
|
for (auto y = region.min.y; y < region.max.y; ++y, dbuffer += surface->stride) {
|
|
auto sy = (uint32_t)(y * itransform->e22 + itransform->e23);
|
|
if (sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
|
|
auto sx = (uint32_t)(x * itransform->e11 + itransform->e13);
|
|
if (sx >= image->w) continue;
|
|
auto src = _interpDownScaler(image->data, image->stride, image->w, image->h, sx, sy, halfScale);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
// Up-Scaled
|
|
} else {
|
|
for (auto y = region.min.y; y < region.max.y; ++y, dbuffer += surface->stride) {
|
|
auto sy = y * itransform->e22 + itransform->e23;
|
|
if ((uint32_t)sy >= image->h) continue;
|
|
auto dst = dbuffer;
|
|
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
|
|
auto sx = x * itransform->e11 + itransform->e13;
|
|
if ((uint32_t)sx >= image->w) continue;
|
|
auto src = _interpUpScaler(image->data, image->w, image->h, sx, sy);
|
|
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _scaledRGBAImage(SwSurface* surface, const SwImage* image, const Matrix* transform, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
Matrix itransform;
|
|
if (transform && !mathInverse(transform, &itransform)) return false;
|
|
|
|
auto halfScale = _halfScale(image->scale);
|
|
|
|
if (_compositing(surface)) {
|
|
if (opacity == 255) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterScaledMaskedRGBAImage(surface, image, &itransform, region, halfScale, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterScaledMaskedRGBAImage(surface, image, &itransform, region, halfScale, _ialpha);
|
|
}
|
|
} else {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterScaledMaskedTranslucentRGBAImage(surface, image, &itransform, region, opacity, halfScale, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterScaledMaskedTranslucentRGBAImage(surface, image, &itransform, region, opacity, halfScale, _ialpha);
|
|
}
|
|
}
|
|
} else {
|
|
if (opacity == 255) return _rasterScaledRGBAImage(surface, image, &itransform, region, halfScale);
|
|
else return _rasterScaledTranslucentRGBAImage(surface, image, &itransform, region, opacity, halfScale);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* Direct RGBA Image */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterDirectMaskedRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, uint32_t (*blendMethod)(uint32_t))
|
|
{
|
|
TVGLOG("SW_ENGINE", "Direct Masked Image");
|
|
|
|
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);
|
|
|
|
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->compositor->image.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, blendMethod(*cmp));
|
|
*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
|
|
}
|
|
buffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
sbuffer += image->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterDirectMaskedTranslucentRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, uint32_t opacity, uint32_t (*blendMethod)(uint32_t))
|
|
{
|
|
TVGLOG("SW_ENGINE", "Direct Masked Translucent Image");
|
|
|
|
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);
|
|
|
|
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->compositor->image.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, _ialpha(tmp));
|
|
}
|
|
buffer += surface->stride;
|
|
cbuffer += surface->compositor->image.stride;
|
|
sbuffer += image->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterDirectTranslucentRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
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 tmp = ALPHA_BLEND(*src, opacity);
|
|
*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
|
|
}
|
|
dbuffer += surface->stride;
|
|
sbuffer += image->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterDirectRGBAImage(SwSurface* surface, const SwImage* image, 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++) {
|
|
*dst = *src + ALPHA_BLEND(*dst, _ialpha(*src));
|
|
}
|
|
dbuffer += surface->stride;
|
|
sbuffer += image->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
//Blenders for the following scenarios: [Composition / Non-Composition] * [Opaque / Translucent]
|
|
static bool _directRGBAImage(SwSurface* surface, const SwImage* image, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
if (_compositing(surface)) {
|
|
if (opacity == 255) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterDirectMaskedRGBAImage(surface, image, region, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterDirectMaskedRGBAImage(surface, image, region, _ialpha);
|
|
}
|
|
} else {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterDirectMaskedTranslucentRGBAImage(surface, image, region, opacity, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterDirectMaskedTranslucentRGBAImage(surface, image, region, opacity, _ialpha);
|
|
}
|
|
}
|
|
} else {
|
|
if (opacity == 255) return _rasterDirectRGBAImage(surface, image, region);
|
|
else return _rasterDirectTranslucentRGBAImage(surface, image, region, opacity);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
//Blenders for the following scenarios: [RLE / Whole] * [Direct / Scaled / Transformed]
|
|
static bool _rasterRGBAImage(SwSurface* surface, SwImage* image, const Matrix* transform, const SwBBox& region, uint32_t opacity)
|
|
{
|
|
//RLE Image
|
|
if (image->rle) {
|
|
if (image->direct) return _directRleRGBAImage(surface, image, opacity);
|
|
else if (image->scaled) return _scaledRleRGBAImage(surface, image, transform, region, opacity);
|
|
else return _transformedRleRGBAImage(surface, image, transform, opacity);
|
|
//Whole Image
|
|
} else {
|
|
if (image->direct) return _directRGBAImage(surface, image, region, opacity);
|
|
else if (image->scaled) return _scaledRGBAImage(surface, image, transform, region, opacity);
|
|
else return _transformedRGBAImage(surface, image, transform, region, opacity);
|
|
}
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* Rect Linear Gradient */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterLinearGradientMaskedRect(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->compositor->image.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, _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;
|
|
|
|
for (uint32_t y = 0; y < h; ++y) {
|
|
auto dst = buffer;
|
|
fillFetchLinear(fill, sbuffer, region.min.y + y, region.min.x, w);
|
|
for (uint32_t x = 0; x < w; ++x, ++dst) {
|
|
*dst = sbuffer[x] + ALPHA_BLEND(*dst, _ialpha(sbuffer[x]));
|
|
}
|
|
buffer += surface->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
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 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) {
|
|
fillFetchLinear(fill, buffer + y * surface->stride, region.min.y + y, region.min.x, w);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterLinearGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
|
|
{
|
|
if (_compositing(surface)) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterLinearGradientMaskedRect(surface, region, fill, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterLinearGradientMaskedRect(surface, region, fill, _ialpha);
|
|
}
|
|
} else {
|
|
if (fill->translucent) return _rasterTranslucentLinearGradientRect(surface, region, fill);
|
|
else _rasterSolidLinearGradientRect(surface, region, fill);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* Rle Linear Gradient */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterLinearGradientMaskedRle(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->compositor->image.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, _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, _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) {
|
|
*dst = buffer[i] + ALPHA_BLEND(*dst, _ialpha(buffer[i]));
|
|
}
|
|
} else {
|
|
for (uint32_t i = 0; i < span->len; ++i, ++dst) {
|
|
auto tmp = ALPHA_BLEND(buffer[i], span->coverage);
|
|
*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
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 dst = &surface->buffer[span->y * surface->stride + span->x];
|
|
for (uint32_t i = 0; i < span->len; ++i) {
|
|
dst[i] = INTERPOLATE(span->coverage, buf[i], dst[i]);
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterLinearGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
|
|
{
|
|
if (!rle) return false;
|
|
|
|
if (_compositing(surface)) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterLinearGradientMaskedRle(surface, rle, fill, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterLinearGradientMaskedRle(surface, rle, fill, _ialpha);
|
|
}
|
|
} else {
|
|
if (fill->translucent) return _rasterTranslucentLinearGradientRle(surface, rle, fill);
|
|
else return _rasterSolidLinearGradientRle(surface, rle, fill);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* Rect Radial Gradient */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterRadialGradientMaskedRect(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->compositor->image.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, _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;
|
|
|
|
for (uint32_t y = 0; y < h; ++y) {
|
|
auto dst = buffer;
|
|
fillFetchRadial(fill, sbuffer, region.min.y + y, region.min.x, w);
|
|
for (uint32_t x = 0; x < w; ++x, ++dst) {
|
|
*dst = sbuffer[x] + ALPHA_BLEND(*dst, _ialpha(sbuffer[x]));
|
|
}
|
|
buffer += surface->stride;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
static bool _rasterRadialGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
|
|
{
|
|
if (_compositing(surface)) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterRadialGradientMaskedRect(surface, region, fill, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterRadialGradientMaskedRect(surface, region, fill, _ialpha);
|
|
}
|
|
} else {
|
|
if (fill->translucent) return _rasterTranslucentRadialGradientRect(surface, region, fill);
|
|
else return _rasterSolidRadialGradientRect(surface, region, fill);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* RLE Radial Gradient */
|
|
/************************************************************************/
|
|
|
|
static bool _rasterRadialGradientMaskedRle(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->compositor->image.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, _ialpha(tmp));
|
|
}
|
|
} else {
|
|
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++src) {
|
|
auto tmp = INTERPOLATE(span->coverage, ALPHA_BLEND(*src, blendMethod(*cmp)), *dst);
|
|
*dst = tmp + ALPHA_BLEND(*dst, _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) {
|
|
*dst = buffer[i] + ALPHA_BLEND(*dst, _ialpha(buffer[i]));
|
|
}
|
|
} else {
|
|
for (uint32_t i = 0; i < span->len; ++i, ++dst) {
|
|
auto tmp = ALPHA_BLEND(buffer[i], span->coverage);
|
|
*dst = tmp + ALPHA_BLEND(*dst, _ialpha(tmp));
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
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) {
|
|
*dst = ALPHA_BLEND(buf[i], span->coverage) + ALPHA_BLEND(*dst, ialpha);
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool _rasterRadialGradientRle(SwSurface* surface, const SwRleData* rle, const SwFill* fill)
|
|
{
|
|
if (!rle) return false;
|
|
|
|
if (_compositing(surface)) {
|
|
if (surface->compositor->method == CompositeMethod::AlphaMask) {
|
|
return _rasterRadialGradientMaskedRle(surface, rle, fill, _alpha);
|
|
} else if (surface->compositor->method == CompositeMethod::InvAlphaMask) {
|
|
return _rasterRadialGradientMaskedRle(surface, rle, fill, _ialpha);
|
|
}
|
|
} else {
|
|
if (fill->translucent) _rasterTranslucentRadialGradientRle(surface, rle, fill);
|
|
else return _rasterSolidRadialGradientRle(surface, rle, fill);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* 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;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
//OPTIMIZE_ME: +SIMD
|
|
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 rasterGradientShape(SwSurface* surface, SwShape* shape, unsigned id)
|
|
{
|
|
if (!shape->fill) return false;
|
|
|
|
if (shape->fastTrack) {
|
|
if (id == TVG_CLASS_ID_LINEAR) return _rasterLinearGradientRect(surface, shape->bbox, shape->fill);
|
|
else if (id == TVG_CLASS_ID_RADIAL)return _rasterRadialGradientRect(surface, shape->bbox, shape->fill);
|
|
} else {
|
|
if (id == TVG_CLASS_ID_LINEAR) return _rasterLinearGradientRle(surface, shape->rle, shape->fill);
|
|
else if (id == TVG_CLASS_ID_RADIAL) return _rasterRadialGradientRle(surface, shape->rle, shape->fill);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool rasterGradientStroke(SwSurface* surface, SwShape* shape, unsigned id)
|
|
{
|
|
if (!shape->stroke || !shape->stroke->fill || !shape->strokeRle) return false;
|
|
|
|
if (id == TVG_CLASS_ID_LINEAR) return _rasterLinearGradientRle(surface, shape->strokeRle, shape->stroke->fill);
|
|
else if (id == TVG_CLASS_ID_RADIAL) return _rasterRadialGradientRle(surface, shape->strokeRle, shape->stroke->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);
|
|
|
|
if (shape->fastTrack) return _rasterRect(surface, shape->bbox, color, a);
|
|
else return _rasterRle(surface, shape->rle, color, a);
|
|
}
|
|
|
|
|
|
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);
|
|
|
|
return _rasterRle(surface, shape->strokeRle, color, a);
|
|
}
|
|
|
|
|
|
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);
|
|
} |