diff --git a/src/swrenderer/r_swcanvas.cpp b/src/swrenderer/r_swcanvas.cpp deleted file mode 100644 index 564fa8ca5..000000000 --- a/src/swrenderer/r_swcanvas.cpp +++ /dev/null @@ -1,861 +0,0 @@ -/* -** r_swcanvas.cpp -** Draw to a canvas using software rendering -** -**--------------------------------------------------------------------------- -** Copyright 1998-2008 Randy Heit -** All rights reserved. -** -** Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions -** are met: -** -** 1. Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** 2. Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in the -** documentation and/or other materials provided with the distribution. -** 3. The name of the author may not be used to endorse or promote products -** derived from this software without specific prior written permission. -** -** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -**--------------------------------------------------------------------------- -** -*/ - -#include "swrenderer/viewport/r_viewport.h" -#include "swrenderer/scene/r_light.h" -#include "swrenderer/r_renderthread.h" -#include "v_palette.h" -#include "v_video.h" -#include "m_png.h" -#include "r_swcolormaps.h" -#include "colormatcher.h" -#include "r_swcanvas.h" -#include "textures/textures.h" -#include "r_data/voxels.h" -#include "drawers/r_draw_rgba.h" - -EXTERN_CVAR(Bool, r_blendmethod) - -using namespace swrenderer; - -void SWCanvas::DrawTexture(DCanvas *canvas, FTexture *img, DrawParms &parms) -{ - static short bottomclipper[MAXWIDTH], topclipper[MAXWIDTH]; - - static RenderThread thread(nullptr); - thread.DrawQueue->ThreadedRender = false; - - auto viewport = thread.Viewport.get(); - viewport->RenderTarget = canvas; - viewport->RenderTarget->Lock(true); - - lighttable_t *translation = nullptr; - FDynamicColormap *basecolormap = &identitycolormap; - int shade = 0; - - if (APART(parms.colorOverlay) != 0) - { - // The software renderer cannot invert the source without inverting the overlay - // too. That means if the source is inverted, we need to do the reverse of what - // the invert overlay flag says to do. - INTBOOL invertoverlay = (parms.style.Flags & STYLEF_InvertOverlay); - - if (parms.style.Flags & STYLEF_InvertSource) - { - invertoverlay = !invertoverlay; - } - if (invertoverlay) - { - parms.colorOverlay = PalEntry(parms.colorOverlay).InverseColor(); - } - // Note that this overrides the translation in software, but not in hardware. - FDynamicColormap *colormap = GetSpecialLights(MAKERGB(255, 255, 255), parms.colorOverlay & MAKEARGB(0, 255, 255, 255), 0); - - if (viewport->RenderTarget->IsBgra()) - { - basecolormap = colormap; - shade = (APART(parms.colorOverlay)*NUMCOLORMAPS / 255) << FRACBITS; - } - else - { - translation = &colormap->Maps[(APART(parms.colorOverlay)*NUMCOLORMAPS / 255) * 256]; - } - } - else if (parms.remap != NULL) - { - if (viewport->RenderTarget->IsBgra()) - translation = (lighttable_t *)parms.remap->Palette; - else - translation = parms.remap->Remap; - } - - SpriteDrawerArgs drawerargs; - - drawerargs.SetTranslationMap(translation); - drawerargs.SetLight(basecolormap, 0.0f, shade); - - uint32_t myfillcolor = (RGB256k.All[((parms.fillcolor & 0xfc0000) >> 6) | - ((parms.fillcolor & 0xfc00) >> 4) | ((parms.fillcolor & 0xfc) >> 2)]) << 24 | - (parms.fillcolor & 0xffffff); - bool visible = drawerargs.SetStyle(viewport, parms.style, parms.Alpha, -1, myfillcolor, basecolormap); - - double x0 = parms.x - parms.left * parms.destwidth / parms.texwidth; - double y0 = parms.y - parms.top * parms.destheight / parms.texheight; - - if (visible) - { - double centeryback = viewport->CenterY; - viewport->CenterY = 0; - - int oldviewwindowx = 0; - int oldviewwindowy = 0; - oldviewwindowx = viewwindowx; - oldviewwindowy = viewwindowy; - viewwindowx = 0; - viewwindowy = 0; - - // There is not enough precision in the drawing routines to keep the full - // precision for y0. :( - double sprtopscreen; - modf(y0 + 0.5, &sprtopscreen); - - double yscale = parms.destheight / img->GetHeight(); - double iyscale = 1 / yscale; - - double spryscale = yscale; - assert(spryscale > 0); - - bool sprflipvert = false; - fixed_t iscale = FLOAT2FIXED(1 / spryscale); - //dc_texturemid = (CenterY - 1 - sprtopscreen) * iscale / 65536; - fixed_t frac = 0; - double xiscale = img->GetWidth() / parms.destwidth; - double x2 = x0 + parms.destwidth; - - short *mfloorclip; - short *mceilingclip; - - if (bottomclipper[0] != parms.dclip) - { - fillshort(bottomclipper, screen->GetWidth(), (short)parms.dclip); - } - if (parms.uclip != 0) - { - if (topclipper[0] != parms.uclip) - { - fillshort(topclipper, screen->GetWidth(), (short)parms.uclip); - } - mceilingclip = topclipper; - } - else - { - mceilingclip = zeroarray; - } - mfloorclip = bottomclipper; - - if (parms.flipX) - { - frac = (img->GetWidth() << FRACBITS) - 1; - xiscale = -xiscale; - } - - if (parms.windowleft > 0 || parms.windowright < parms.texwidth) - { - double wi = MIN(parms.windowright, parms.texwidth); - double xscale = parms.destwidth / parms.texwidth; - x0 += parms.windowleft * xscale; - frac += FLOAT2FIXED(parms.windowleft); - x2 -= (parms.texwidth - wi) * xscale; - } - if (x0 < parms.lclip) - { - frac += FLOAT2FIXED((parms.lclip - x0) * xiscale); - x0 = parms.lclip; - } - if (x2 > parms.rclip) - { - x2 = parms.rclip; - } - - int x = int(x0); - int x2_i = int(x2); - fixed_t xiscale_i = FLOAT2FIXED(xiscale); - - frac += xiscale_i / 2; - - while (x < x2_i) - { - drawerargs.DrawMaskedColumn(&thread, x, iscale, img, frac, spryscale, sprtopscreen, sprflipvert, mfloorclip, mceilingclip, parms.style, !parms.masked); - x++; - frac += xiscale_i; - } - - viewport->CenterY = centeryback; - viewwindowx = oldviewwindowx; - viewwindowy = oldviewwindowy; - } - - viewport->RenderTarget->Unlock(); - viewport->RenderTarget = canvas; -} - -void SWCanvas::FillSimplePoly(DCanvas *canvas, FTexture *tex, FVector2 *points, int npoints, - double originx, double originy, double scalex, double scaley, DAngle rotation, - const FColormap &fcolormap, PalEntry flatcolor, int lightlevel, int bottomclip) -{ - // Use an equation similar to player sprites to determine shade - fixed_t shade = LightVisibility::LightLevelToShade(lightlevel, true) - 12 * FRACUNIT; - float topy, boty, leftx, rightx; - int toppt, botpt, pt1, pt2; - int i; - int y1, y2, y; - fixed_t x; - bool dorotate = rotation != 0.; - double cosrot, sinrot; - auto colormap = GetColorTable(fcolormap); - - if (--npoints < 2) - { // not a polygon or we're not locked - return; - } - - if (bottomclip <= 0) - { - bottomclip = canvas->GetHeight(); - } - - // Find the extents of the polygon, in particular the highest and lowest points. - for (botpt = toppt = 0, boty = topy = points[0].Y, leftx = rightx = points[0].X, i = 1; i <= npoints; ++i) - { - if (points[i].Y < topy) - { - topy = points[i].Y; - toppt = i; - } - if (points[i].Y > boty) - { - boty = points[i].Y; - botpt = i; - } - if (points[i].X < leftx) - { - leftx = points[i].X; - } - if (points[i].X > rightx) - { - rightx = points[i].X; - } - } - if (topy >= bottomclip || // off the bottom of the screen - boty <= 0 || // off the top of the screen - leftx >= canvas->GetWidth() || // off the right of the screen - rightx <= 0) // off the left of the screen - { - return; - } - - static RenderThread thread(nullptr); - thread.DrawQueue->ThreadedRender = false; - - auto viewport = thread.Viewport.get(); - viewport->RenderTarget = canvas; - - viewport->RenderTarget->Lock(true); - - scalex = tex->Scale.X / scalex; - scaley = tex->Scale.Y / scaley; - - // Use the CRT's functions here. - cosrot = cos(rotation.Radians()); - sinrot = sin(rotation.Radians()); - - // Setup constant texture mapping parameters. - SpanDrawerArgs drawerargs; - drawerargs.SetTexture(&thread, tex); - if (colormap) - drawerargs.SetLight(colormap, 0, clamp(shade >> FRACBITS, 0, NUMCOLORMAPS - 1)); - else - drawerargs.SetLight(&identitycolormap, 0, 0); - - scalex /= drawerargs.TextureWidth(); - scaley /= drawerargs.TextureHeight(); - - drawerargs.SetTextureUStep(cosrot * scalex); - drawerargs.SetTextureVStep(sinrot * scaley); - - int width = canvas->GetWidth(); - - // Travel down the right edge and create an outline of that edge. - static short spanend[MAXHEIGHT]; - pt1 = toppt; - pt2 = toppt + 1; if (pt2 > npoints) pt2 = 0; - y1 = xs_RoundToInt(points[pt1].Y + 0.5f); - do - { - x = FLOAT2FIXED(points[pt1].X + 0.5f); - y2 = xs_RoundToInt(points[pt2].Y + 0.5f); - if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= bottomclip && y2 >= bottomclip)) - { - } - else - { - fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y)); - int y3 = MIN(y2, bottomclip); - if (y1 < 0) - { - x += xinc * -y1; - y1 = 0; - } - for (y = y1; y < y3; ++y) - { - spanend[y] = clamp(x >> FRACBITS, -1, width); - x += xinc; - } - } - y1 = y2; - pt1 = pt2; - pt2++; if (pt2 > npoints) pt2 = 0; - } while (pt1 != botpt); - - // Travel down the left edge and fill it in. - pt1 = toppt; - pt2 = toppt - 1; if (pt2 < 0) pt2 = npoints; - y1 = xs_RoundToInt(points[pt1].Y + 0.5f); - do - { - x = FLOAT2FIXED(points[pt1].X + 0.5f); - y2 = xs_RoundToInt(points[pt2].Y + 0.5f); - if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= bottomclip && y2 >= bottomclip)) - { - } - else - { - fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y)); - int y3 = MIN(y2, bottomclip); - if (y1 < 0) - { - x += xinc * -y1; - y1 = 0; - } - for (y = y1; y < y3; ++y) - { - int x1 = x >> FRACBITS; - int x2 = spanend[y]; - if (x2 > x1 && x2 > 0 && x1 < width) - { - x1 = MAX(x1, 0); - x2 = MIN(x2, width); -#if 0 - memset(this->Buffer + y * this->Pitch + x1, (int)tex, x2 - x1); -#else - drawerargs.SetDestY(viewport, y); - drawerargs.SetDestX1(x1); - drawerargs.SetDestX2(x2 - 1); - - DVector2 tex(x1 - originx, y - originy); - if (dorotate) - { - double t = tex.X; - tex.X = t * cosrot - tex.Y * sinrot; - tex.Y = tex.Y * cosrot + t * sinrot; - } - drawerargs.SetTextureUPos(tex.X * scalex); - drawerargs.SetTextureVPos(tex.Y * scaley); - - drawerargs.DrawSpan(&thread); -#endif - } - x += xinc; - } - } - y1 = y2; - pt1 = pt2; - pt2--; if (pt2 < 0) pt2 = npoints; - } while (pt1 != botpt); - - viewport->RenderTarget->Unlock(); - viewport->RenderTarget = screen; -} - -void SWCanvas::DrawLine(DCanvas *canvas, int x0, int y0, int x1, int y1, int palColor, uint32_t realcolor) -{ - const int WeightingScale = 0; - const int WEIGHTBITS = 6; - const int WEIGHTSHIFT = 16 - WEIGHTBITS; - const int NUMWEIGHTS = (1 << WEIGHTBITS); - const int WEIGHTMASK = (NUMWEIGHTS - 1); - - if (palColor < 0) - { - palColor = PalFromRGB(realcolor); - } - - canvas->Lock(true); - int deltaX, deltaY, xDir; - - if (y0 > y1) - { - int temp = y0; y0 = y1; y1 = temp; - temp = x0; x0 = x1; x1 = temp; - } - - PUTTRANSDOT(canvas, x0, y0, palColor, 0); - - if ((deltaX = x1 - x0) >= 0) - { - xDir = 1; - } - else - { - xDir = -1; - deltaX = -deltaX; - } - - if ((deltaY = y1 - y0) == 0) - { // horizontal line - if (x0 > x1) - { - swapvalues(x0, x1); - } - if (canvas->IsBgra()) - { - uint32_t fillColor = GPalette.BaseColors[palColor].d; - uint32_t *spot = (uint32_t*)canvas->GetBuffer() + y0*canvas->GetPitch() + x0; - for (int i = 0; i <= deltaX; i++) - spot[i] = fillColor; - } - else - { - memset(canvas->GetBuffer() + y0*canvas->GetPitch() + x0, palColor, deltaX + 1); - } - } - else if (deltaX == 0) - { // vertical line - if (canvas->IsBgra()) - { - uint32_t fillColor = GPalette.BaseColors[palColor].d; - uint32_t *spot = (uint32_t*)canvas->GetBuffer() + y0*canvas->GetPitch() + x0; - int pitch = canvas->GetPitch(); - do - { - *spot = fillColor; - spot += pitch; - } while (--deltaY != 0); - } - else - { - uint8_t *spot = canvas->GetBuffer() + y0*canvas->GetPitch() + x0; - int pitch = canvas->GetPitch(); - do - { - *spot = palColor; - spot += pitch; - } while (--deltaY != 0); - } - } - else if (deltaX == deltaY) - { // diagonal line. - if (canvas->IsBgra()) - { - uint32_t fillColor = GPalette.BaseColors[palColor].d; - uint32_t *spot = (uint32_t*)canvas->GetBuffer() + y0*canvas->GetPitch() + x0; - int advance = canvas->GetPitch() + xDir; - do - { - *spot = fillColor; - spot += advance; - } while (--deltaY != 0); - } - else - { - uint8_t *spot = canvas->GetBuffer() + y0*canvas->GetPitch() + x0; - int advance = canvas->GetPitch() + xDir; - do - { - *spot = palColor; - spot += advance; - } while (--deltaY != 0); - } - } - else - { - // line is not horizontal, diagonal, or vertical - fixed_t errorAcc = 0; - - if (deltaY > deltaX) - { // y-major line - fixed_t errorAdj = (((unsigned)deltaX << 16) / (unsigned)deltaY) & 0xffff; - if (xDir < 0) - { - if (WeightingScale == 0) - { - while (--deltaY) - { - errorAcc += errorAdj; - y0++; - int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0 - (errorAcc >> 16), y0, palColor, weighting); - PUTTRANSDOT(canvas, x0 - (errorAcc >> 16) - 1, y0, - palColor, WEIGHTMASK - weighting); - } - } - else - { - while (--deltaY) - { - errorAcc += errorAdj; - y0++; - int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT + 8)) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0 - (errorAcc >> 16), y0, palColor, weighting); - PUTTRANSDOT(canvas, x0 - (errorAcc >> 16) - 1, y0, - palColor, WEIGHTMASK - weighting); - } - } - } - else - { - if (WeightingScale == 0) - { - while (--deltaY) - { - errorAcc += errorAdj; - y0++; - int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0 + (errorAcc >> 16), y0, palColor, weighting); - PUTTRANSDOT(canvas, x0 + (errorAcc >> 16) + xDir, y0, - palColor, WEIGHTMASK - weighting); - } - } - else - { - while (--deltaY) - { - errorAcc += errorAdj; - y0++; - int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT + 8)) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0 + (errorAcc >> 16), y0, palColor, weighting); - PUTTRANSDOT(canvas, x0 + (errorAcc >> 16) + xDir, y0, - palColor, WEIGHTMASK - weighting); - } - } - } - } - else - { // x-major line - fixed_t errorAdj = (((uint32_t)deltaY << 16) / (uint32_t)deltaX) & 0xffff; - - if (WeightingScale == 0) - { - while (--deltaX) - { - errorAcc += errorAdj; - x0 += xDir; - int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0, y0 + (errorAcc >> 16), palColor, weighting); - PUTTRANSDOT(canvas, x0, y0 + (errorAcc >> 16) + 1, - palColor, WEIGHTMASK - weighting); - } - } - else - { - while (--deltaX) - { - errorAcc += errorAdj; - x0 += xDir; - int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT + 8)) & WEIGHTMASK; - PUTTRANSDOT(canvas, x0, y0 + (errorAcc >> 16), palColor, weighting); - PUTTRANSDOT(canvas, x0, y0 + (errorAcc >> 16) + 1, - palColor, WEIGHTMASK - weighting); - } - } - } - PUTTRANSDOT(canvas, x1, y1, palColor, 0); - } - canvas->Unlock(); -} - -void SWCanvas::DrawPixel(DCanvas *canvas, int x, int y, int palColor, uint32_t realcolor) -{ - if (palColor < 0) - { - palColor = PalFromRGB(realcolor); - } - - canvas->GetBuffer()[canvas->GetPitch() * y + x] = (uint8_t)palColor; -} - -void SWCanvas::PUTTRANSDOT(DCanvas *canvas, int xx, int yy, int basecolor, int level) -{ - static int oldyy; - static int oldyyshifted; - - if (yy == oldyy + 1) - { - oldyy++; - oldyyshifted += canvas->GetPitch(); - } - else if (yy == oldyy - 1) - { - oldyy--; - oldyyshifted -= canvas->GetPitch(); - } - else if (yy != oldyy) - { - oldyy = yy; - oldyyshifted = yy * canvas->GetPitch(); - } - - if (canvas->IsBgra()) - { - uint32_t *spot = (uint32_t*)canvas->GetBuffer() + oldyyshifted + xx; - - uint32_t fg = swrenderer::LightBgra::shade_pal_index_simple(basecolor, swrenderer::LightBgra::calc_light_multiplier(0)); - uint32_t fg_red = (((fg >> 16) & 0xff) * (63 - level)) >> 6; - uint32_t fg_green = (((fg >> 8) & 0xff) * (63 - level)) >> 6; - uint32_t fg_blue = ((fg & 0xff) * (63 - level)) >> 6; - - uint32_t bg_red = (((*spot >> 16) & 0xff) * level) >> 6; - uint32_t bg_green = (((*spot >> 8) & 0xff) * level) >> 6; - uint32_t bg_blue = (((*spot) & 0xff) * level) >> 6; - - uint32_t red = fg_red + bg_red; - uint32_t green = fg_green + bg_green; - uint32_t blue = fg_blue + bg_blue; - - *spot = 0xff000000 | (red << 16) | (green << 8) | blue; - } - else if (!r_blendmethod) - { - uint8_t *spot = canvas->GetBuffer() + oldyyshifted + xx; - uint32_t *bg2rgb = Col2RGB8[1 + level]; - uint32_t *fg2rgb = Col2RGB8[63 - level]; - uint32_t fg = fg2rgb[basecolor]; - uint32_t bg = bg2rgb[*spot]; - bg = (fg + bg) | 0x1f07c1f; - *spot = RGB32k.All[bg&(bg >> 15)]; - } - else - { - uint8_t *spot = canvas->GetBuffer() + oldyyshifted + xx; - - uint32_t r = (GPalette.BaseColors[*spot].r * (64 - level) + GPalette.BaseColors[basecolor].r * level) / 256; - uint32_t g = (GPalette.BaseColors[*spot].g * (64 - level) + GPalette.BaseColors[basecolor].g * level) / 256; - uint32_t b = (GPalette.BaseColors[*spot].b * (64 - level) + GPalette.BaseColors[basecolor].b * level) / 256; - - *spot = (uint8_t)RGB256k.RGB[r][g][b]; - } -} - -void SWCanvas::Clear(DCanvas *canvas, int left, int top, int right, int bottom, int palcolor, uint32_t color) -{ - int x, y; - - if (left == right || top == bottom) - { - return; - } - - assert(left < right); - assert(top < bottom); - - int Width = canvas->GetWidth(); - int Height = canvas->GetHeight(); - int Pitch = canvas->GetPitch(); - - if (left >= Width || right <= 0 || top >= Height || bottom <= 0) - { - return; - } - left = MAX(0, left); - right = MIN(Width, right); - top = MAX(0, top); - bottom = MIN(Height, bottom); - - if (palcolor < 0) - { - palcolor = PalFromRGB(color); - } - - if (canvas->IsBgra()) - { - uint32_t fill_color = GPalette.BaseColors[palcolor]; - - uint32_t *dest = (uint32_t*)canvas->GetBuffer() + top * Pitch + left; - x = right - left; - for (y = top; y < bottom; y++) - { - for (int i = 0; i < x; i++) - dest[i] = fill_color; - dest += Pitch; - } - } - else - { - uint8_t *dest = canvas->GetBuffer() + top * Pitch + left; - x = right - left; - for (y = top; y < bottom; y++) - { - memset(dest, palcolor, x); - dest += Pitch; - } - } -} - -void SWCanvas::Dim(DCanvas *canvas, PalEntry color, float damount, int x1, int y1, int w, int h) -{ - if (damount == 0.f) - return; - - int Width = canvas->GetWidth(); - int Height = canvas->GetHeight(); - int Pitch = canvas->GetPitch(); - - if (x1 >= Width || y1 >= Height) - { - return; - } - if (x1 + w > Width) - { - w = Width - x1; - } - if (y1 + h > Height) - { - h = Height - y1; - } - if (w <= 0 || h <= 0) - { - return; - } - - if (canvas->IsBgra()) - { - uint32_t *spot = (uint32_t*)canvas->GetBuffer() + x1 + y1*Pitch; - int gap = Pitch - w; - - uint32_t fg = color.d; - uint32_t fg_red = (fg >> 16) & 0xff; - uint32_t fg_green = (fg >> 8) & 0xff; - uint32_t fg_blue = fg & 0xff; - - uint32_t alpha = (uint32_t)clamp(damount * 256 + 0.5f, 0.0f, 256.0f); - uint32_t inv_alpha = 256 - alpha; - - fg_red *= alpha; - fg_green *= alpha; - fg_blue *= alpha; - - for (int y = h; y != 0; y--) - { - for (int x = w; x != 0; x--) - { - uint32_t bg_red = (*spot >> 16) & 0xff; - uint32_t bg_green = (*spot >> 8) & 0xff; - uint32_t bg_blue = (*spot) & 0xff; - - uint32_t red = (fg_red + bg_red * inv_alpha) / 256; - uint32_t green = (fg_green + bg_green * inv_alpha) / 256; - uint32_t blue = (fg_blue + bg_blue * inv_alpha) / 256; - - *spot = 0xff000000 | (red << 16) | (green << 8) | blue; - spot++; - } - spot += gap; - } - } - else - { - uint32_t *bg2rgb; - uint32_t fg; - - uint8_t *spot = canvas->GetBuffer() + x1 + y1*Pitch; - int gap = Pitch - w; - - int alpha = (int)((float)64 * damount); - int ialpha = 64 - alpha; - int dimmedcolor_r = color.r * alpha; - int dimmedcolor_g = color.g * alpha; - int dimmedcolor_b = color.b * alpha; - - if (!r_blendmethod) - { - { - int amount; - - amount = (int)(damount * 64); - bg2rgb = Col2RGB8[64 - amount]; - - fg = (((color.r * amount) >> 4) << 20) | - ((color.g * amount) >> 4) | - (((color.b * amount) >> 4) << 10); - } - - for (int y = h; y != 0; y--) - { - for (int x = w; x != 0; x--) - { - uint32_t bg; - - bg = bg2rgb[(*spot) & 0xff]; - bg = (fg + bg) | 0x1f07c1f; - *spot = RGB32k.All[bg&(bg >> 15)]; - spot++; - } - spot += gap; - } - } - else - { - for (int y = h; y != 0; y--) - { - for (int x = w; x != 0; x--) - { - uint32_t r = (dimmedcolor_r + GPalette.BaseColors[*spot].r * ialpha) >> 8; - uint32_t g = (dimmedcolor_g + GPalette.BaseColors[*spot].g * ialpha) >> 8; - uint32_t b = (dimmedcolor_b + GPalette.BaseColors[*spot].b * ialpha) >> 8; - *spot = (uint8_t)RGB256k.RGB[r][g][b]; - spot++; - } - spot += gap; - } - } - } -} - -int SWCanvas::PalFromRGB(uint32_t rgb) -{ - // For routines that take RGB colors, cache the previous lookup in case there - // are several repetitions with the same color. - static int LastPal = -1; - static uint32_t LastRGB; - - if (LastPal >= 0 && LastRGB == rgb) - { - return LastPal; - } - // Quick check for black and white. - if (rgb == MAKEARGB(255, 0, 0, 0)) - { - LastPal = GPalette.BlackIndex; - } - else if (rgb == MAKEARGB(255, 255, 255, 255)) - { - LastPal = GPalette.WhiteIndex; - } - else - { - LastPal = ColorMatcher.Pick(RPART(rgb), GPART(rgb), BPART(rgb)); - } - LastRGB = rgb; - return LastPal; -}