Add: A 32 bpp blitter that uses the animation buffer from the video backend to speed up palette animation.
Michael Lutz
3 years ago
parent
ae7c63cc35
commit
94d8acb7d0
@ -0,0 +1,500 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file 40bpp_optimized.cpp Implementation of the optimized 40 bpp blitter. */
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#include "../stdafx.h"
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#include "../zoom_func.h"
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#include "../settings_type.h"
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#include "../video/video_driver.hpp"
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#include "40bpp_anim.hpp"
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#include "../table/sprites.h"
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#include "../safeguards.h"
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/** Instantiation of the 40bpp with animation blitter factory. */
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static FBlitter_40bppAnim iFBlitter_40bppAnim;
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/** Cached black value. */
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static const Colour _black_colour(0, 0, 0);
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void Blitter_40bppAnim::SetPixel(void *video, int x, int y, uint8 colour)
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{
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if (_screen_disable_anim) {
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Blitter_32bppOptimized::SetPixel(video, x, y, colour);
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} else {
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*((Colour *)video + x + y * _screen.pitch) = _black_colour;
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VideoDriver::GetInstance()->GetAnimBuffer()[((uint32 *)video - (uint32 *)_screen.dst_ptr) + x + y * _screen.pitch] = colour;
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}
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}
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void Blitter_40bppAnim::DrawRect(void *video, int width, int height, uint8 colour)
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{
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if (_screen_disable_anim) {
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/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent DrawRect() */
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Blitter_32bppOptimized::DrawRect(video, width, height, colour);
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return;
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}
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assert(VideoDriver::GetInstance()->GetAnimBuffer() != nullptr);
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uint8 *anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + VideoDriver::GetInstance()->GetAnimBuffer();
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do {
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Colour *dst = (Colour *)video;
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uint8 *anim = anim_line;
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for (int i = width; i > 0; i--) {
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*dst = _black_colour;
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*anim = colour;
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dst++;
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anim++;
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}
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video = (uint32 *)video + _screen.pitch;
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anim_line += _screen.pitch;
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} while (--height);
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}
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/**
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* Draws a sprite to a (screen) buffer. It is templated to allow faster operation.
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*
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* @tparam mode blitter mode
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* @param bp further blitting parameters
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* @param zoom zoom level at which we are drawing
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*/
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template <BlitterMode mode>
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inline void Blitter_40bppAnim::Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom)
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{
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const SpriteData *src = (const SpriteData *)bp->sprite;
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/* src_px : each line begins with uint32 n = 'number of bytes in this line',
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* then n times is the Colour struct for this line */
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const Colour *src_px = (const Colour *)(src->data + src->offset[zoom][0]);
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/* src_n : each line begins with uint32 n = 'number of bytes in this line',
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* then interleaved stream of 'm' and 'n' channels. 'm' is remap,
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* 'n' is number of bytes with the same alpha channel class */
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const uint16 *src_n = (const uint16 *)(src->data + src->offset[zoom][1]);
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/* skip upper lines in src_px and src_n */
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for (uint i = bp->skip_top; i != 0; i--) {
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src_px = (const Colour *)((const byte *)src_px + *(const uint32 *)src_px);
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src_n = (const uint16 *)((const byte *)src_n + *(const uint32 *)src_n);
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}
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/* skip lines in dst */
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Colour *dst = (Colour *)bp->dst + bp->top * bp->pitch + bp->left;
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assert(VideoDriver::GetInstance()->GetAnimBuffer() != nullptr);
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uint8 *anim = VideoDriver::GetInstance()->GetAnimBuffer() + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * bp->pitch + bp->left;
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/* store so we don't have to access it via bp everytime (compiler assumes pointer aliasing) */
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const byte *remap = bp->remap;
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for (int y = 0; y < bp->height; y++) {
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/* next dst line begins here */
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Colour *dst_ln = dst + bp->pitch;
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uint8 *anim_ln = anim + bp->pitch;
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/* next src line begins here */
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const Colour *src_px_ln = (const Colour *)((const byte *)src_px + *(const uint32 *)src_px);
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src_px++;
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/* next src_n line begins here */
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const uint16 *src_n_ln = (const uint16 *)((const byte *)src_n + *(const uint32 *)src_n);
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src_n += 2;
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/* we will end this line when we reach this point */
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Colour *dst_end = dst + bp->skip_left;
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/* number of pixels with the same alpha channel class */
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uint n;
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while (dst < dst_end) {
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n = *src_n++;
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if (src_px->a == 0) {
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dst += n;
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src_px++;
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src_n++;
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if (dst > dst_end) anim += dst - dst_end;
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} else {
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if (dst + n > dst_end) {
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uint d = dst_end - dst;
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src_px += d;
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src_n += d;
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dst = dst_end - bp->skip_left;
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dst_end = dst + bp->width;
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n = std::min<uint>(n - d, (uint)bp->width);
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goto draw;
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}
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dst += n;
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src_px += n;
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src_n += n;
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}
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}
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dst -= bp->skip_left;
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dst_end -= bp->skip_left;
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dst_end += bp->width;
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while (dst < dst_end) {
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n = std::min<uint>(*src_n++, (uint)(dst_end - dst));
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if (src_px->a == 0) {
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anim += n;
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dst += n;
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src_px++;
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src_n++;
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continue;
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}
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draw:;
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switch (mode) {
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case BM_COLOUR_REMAP:
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case BM_CRASH_REMAP:
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if (src_px->a == 255) {
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do {
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uint8 m = GB(*src_n, 0, 8);
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/* In case the m-channel is zero, only apply the crash remap by darkening the RGB colour. */
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if (m == 0) {
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*dst = mode == BM_CRASH_REMAP ? this->MakeDark(*src_px) : *src_px;
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*anim = 0;
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} else {
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uint r = remap[m];
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if (r != 0) {
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*dst = src_px->data;
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*anim = r;
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}
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}
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anim++;
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dst++;
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src_px++;
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src_n++;
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} while (--n != 0);
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} else {
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do {
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uint8 m = GB(*src_n, 0, 8);
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Colour b = this->RealizeBlendedColour(*anim, *dst);
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if (m == 0) {
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Colour c = mode == BM_CRASH_REMAP ? this->MakeDark(*src_px) : *src_px;
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*dst = this->ComposeColourRGBANoCheck(c.r, c.g, c.b, src_px->a, b);
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*anim = 0;
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} else {
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uint r = remap[m];
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if (r != 0) {
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*dst = this->ComposeColourPANoCheck(this->LookupColourInPalette(r), src_px->a, b);
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*anim = 0; // Animation colours don't work with alpha-blending.
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}
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}
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anim++;
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dst++;
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src_px++;
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src_n++;
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} while (--n != 0);
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}
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break;
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case BM_BLACK_REMAP:
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do {
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*anim++ = 0;
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*dst++ = _black_colour;
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src_px++;
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src_n++;
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} while (--n != 0);
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break;
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case BM_TRANSPARENT:
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/* TODO -- We make an assumption here that the remap in fact is transparency, not some colour.
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* This is never a problem with the code we produce, but newgrfs can make it fail... or at least:
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* we produce a result the newgrf maker didn't expect ;) */
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/* Make the current colour a bit more black, so it looks like this image is transparent */
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src_n += n;
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if (src_px->a == 255) {
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src_px += n;
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do {
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/* If the anim buffer contains a color value, the image composition will
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* only look at the RGB brightness value. As such, we can simply darken the
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* RGB value to darken the anim color. */
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Colour b = *anim != 0 ? Colour(this->GetColourBrightness(*dst), 0, 0) : *dst;
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*dst = this->MakeTransparent(b, 3, 4);
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anim++;
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dst++;
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} while (--n != 0);
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} else {
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do {
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Colour b = this->RealizeBlendedColour(*anim, *dst);
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*dst = this->MakeTransparent(b, (256 * 4 - src_px->a), 256 * 4);
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*anim = 0; // Animation colours don't work with alpha-blending.
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anim++;
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dst++;
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src_px++;
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} while (--n != 0);
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}
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break;
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default:
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if (src_px->a == 255) {
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do {
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*anim++ = GB(*src_n, 0, 8);
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*dst++ = src_px->data;
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src_px++;
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src_n++;
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} while (--n != 0);
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break;
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} else {
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do {
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uint8 m = GB(*src_n, 0, 8);
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Colour b = this->RealizeBlendedColour(*anim, *dst);
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if (m == 0) {
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*dst = this->ComposeColourRGBANoCheck(src_px->r, src_px->g, src_px->b, src_px->a, b);
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*anim = 0;
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} else {
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*dst = this->ComposeColourPANoCheck(this->LookupColourInPalette(m), src_px->a, b);
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*anim = m;
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}
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anim++;
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dst++;
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src_px++;
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src_n++;
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} while (--n != 0);
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}
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}
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}
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dst = dst_ln;
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anim = anim_ln;
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src_px = src_px_ln;
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src_n = src_n_ln;
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}
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}
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/**
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* Draws a sprite to a (screen) buffer. Calls adequate templated function.
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*
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* @param bp further blitting parameters
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* @param mode blitter mode
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* @param zoom zoom level at which we are drawing
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*/
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void Blitter_40bppAnim::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
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{
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assert(_screen.dst_ptr != nullptr);
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if (_screen_disable_anim || VideoDriver::GetInstance()->GetAnimBuffer() == nullptr) {
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/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent Draw() */
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Blitter_32bppOptimized::Draw(bp, mode, zoom);
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return;
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}
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switch (mode) {
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default: NOT_REACHED();
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case BM_NORMAL: Draw<BM_NORMAL> (bp, zoom); return;
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case BM_COLOUR_REMAP: Draw<BM_COLOUR_REMAP>(bp, zoom); return;
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case BM_TRANSPARENT: Draw<BM_TRANSPARENT> (bp, zoom); return;
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case BM_CRASH_REMAP: Draw<BM_CRASH_REMAP> (bp, zoom); return;
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case BM_BLACK_REMAP: Draw<BM_BLACK_REMAP> (bp, zoom); return;
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}
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}
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void Blitter_40bppAnim::DrawColourMappingRect(void *dst, int width, int height, PaletteID pal)
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{
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if (_screen_disable_anim) {
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/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent DrawColourMappingRect() */
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Blitter_32bppOptimized::DrawColourMappingRect(dst, width, height, pal);
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return;
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}
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Colour *udst = (Colour *)dst;
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uint8 *anim = VideoDriver::GetInstance()->GetAnimBuffer() + ((uint32 *)dst - (uint32 *)_screen.dst_ptr);
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if (pal == PALETTE_TO_TRANSPARENT) {
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/* If the anim buffer contains a color value, the image composition will
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* only look at the RGB brightness value. As such, we can simply darken the
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* RGB value to darken the anim color. */
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do {
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for (int i = 0; i != width; i++) {
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Colour b = *anim != 0 ? Colour(this->GetColourBrightness(*udst), 0, 0) : *udst;
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*udst = MakeTransparent(b, 154);
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udst++;
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anim++;
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}
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udst = udst - width + _screen.pitch;
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anim = anim - width + _screen.pitch;
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} while (--height);
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} else if (pal == PALETTE_NEWSPAPER) {
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const uint8 *remap = GetNonSprite(pal, ST_RECOLOUR) + 1;
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do {
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for (int i = 0; i != width; i++) {
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if (*anim == 0) *udst = MakeGrey(*udst);
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*anim = remap[*anim];
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udst++;
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anim++;
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}
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udst = udst - width + _screen.pitch;
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anim = anim - width + _screen.pitch;
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} while (--height);
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} else {
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const uint8 *remap = GetNonSprite(pal, ST_RECOLOUR) + 1;
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do {
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for (int i = 0; i != width; i++) {
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*anim = remap[*anim];
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anim++;
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}
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anim = anim - width + _screen.pitch;
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} while (--height);
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}
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}
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Sprite *Blitter_40bppAnim::Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
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{
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return this->EncodeInternal<false>(sprite, allocator);
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}
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void Blitter_40bppAnim::CopyFromBuffer(void *video, const void *src, int width, int height)
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{
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assert(!_screen_disable_anim);
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assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
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uint32 *dst = (uint32 *)video;
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const uint32 *usrc = (const uint32 *)src;
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uint8 *anim_buf = VideoDriver::GetInstance()->GetAnimBuffer();
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if (anim_buf == nullptr) return;
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uint8 *anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + anim_buf;
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for (; height > 0; height--) {
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memcpy(dst, usrc, width * sizeof(uint32));
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usrc += width;
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dst += _screen.pitch;
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/* Copy back the anim-buffer */
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memcpy(anim_line, usrc, width * sizeof(uint8));
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usrc = (const uint32 *)((const uint8 *)usrc + width);
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anim_line += _screen.pitch;
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}
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}
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void Blitter_40bppAnim::CopyToBuffer(const void *video, void *dst, int width, int height)
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{
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assert(!_screen_disable_anim);
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assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
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uint32 *udst = (uint32 *)dst;
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const uint32 *src = (const uint32 *)video;
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uint8 *anim_buf = VideoDriver::GetInstance()->GetAnimBuffer();
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if (anim_buf == nullptr) return;
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const uint8 *anim_line = ((const uint32 *)video - (uint32 *)_screen.dst_ptr) + anim_buf;
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for (; height > 0; height--) {
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memcpy(udst, src, width * sizeof(uint32));
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src += _screen.pitch;
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udst += width;
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/* Copy the anim-buffer */
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memcpy(udst, anim_line, width * sizeof(uint8));
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udst = (uint32 *)((uint8 *)udst + width);
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anim_line += _screen.pitch;
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}
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}
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void Blitter_40bppAnim::CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch)
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{
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uint8 *anim_buf = VideoDriver::GetInstance()->GetAnimBuffer();
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if (anim_buf == nullptr) {
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Blitter_32bppOptimized::CopyImageToBuffer(video, dst, width, height, dst_pitch);
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return;
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}
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uint32 *udst = (uint32 *)dst;
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const uint32 *src = (const uint32 *)video;
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const uint8 *anim_line = ((const uint32 *)video - (uint32 *)_screen.dst_ptr) + anim_buf;
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for (; height > 0; height--) {
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for (int x = 0; x < width; x++) {
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udst[x] = this->RealizeBlendedColour(anim_line[x], src[x]).data;
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}
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src += _screen.pitch;
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anim_line += _screen.pitch;
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udst += dst_pitch;
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}
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}
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void Blitter_40bppAnim::ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y)
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{
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assert(!_screen_disable_anim);
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assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
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uint8 *anim_buf = VideoDriver::GetInstance()->GetAnimBuffer();
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uint8 *dst, *src;
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/* We need to scroll the anim-buffer too */
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if (scroll_y > 0) {
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dst = anim_buf + left + (top + height - 1) * _screen.pitch;
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src = dst - scroll_y * _screen.pitch;
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/* Adjust left & width */
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if (scroll_x >= 0) {
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||||
dst += scroll_x;
|
||||
} else {
|
||||
src -= scroll_x;
|
||||
}
|
||||
|
||||
uint tw = width + (scroll_x >= 0 ? -scroll_x : scroll_x);
|
||||
uint th = height - scroll_y;
|
||||
for (; th > 0; th--) {
|
||||
memcpy(dst, src, tw * sizeof(uint8));
|
||||
src -= _screen.pitch;
|
||||
dst -= _screen.pitch;
|
||||
}
|
||||
} else {
|
||||
/* Calculate pointers */
|
||||
dst = anim_buf + left + top * _screen.pitch;
|
||||
src = dst - scroll_y * _screen.pitch;
|
||||
|
||||
/* Adjust left & width */
|
||||
if (scroll_x >= 0) {
|
||||
dst += scroll_x;
|
||||
} else {
|
||||
src -= scroll_x;
|
||||
}
|
||||
|
||||
/* the y-displacement may be 0 therefore we have to use memmove,
|
||||
* because source and destination may overlap */
|
||||
uint tw = width + (scroll_x >= 0 ? -scroll_x : scroll_x);
|
||||
uint th = height + scroll_y;
|
||||
for (; th > 0; th--) {
|
||||
memmove(dst, src, tw * sizeof(uint8));
|
||||
src += _screen.pitch;
|
||||
dst += _screen.pitch;
|
||||
}
|
||||
}
|
||||
|
||||
Blitter_32bppBase::ScrollBuffer(video, left, top, width, height, scroll_x, scroll_y);
|
||||
}
|
||||
|
||||
int Blitter_40bppAnim::BufferSize(int width, int height)
|
||||
{
|
||||
return width * height * (sizeof(uint32) + sizeof(uint8));
|
||||
}
|
||||
|
||||
Blitter::PaletteAnimation Blitter_40bppAnim::UsePaletteAnimation()
|
||||
{
|
||||
return Blitter::PALETTE_ANIMATION_VIDEO_BACKEND;
|
||||
}
|
||||
|
||||
bool Blitter_40bppAnim::NeedsAnimationBuffer()
|
||||
{
|
||||
return true;
|
||||
}
|
||||
@ -0,0 +1,63 @@
|
||||
/* $Id$ */
|
||||
|
||||
/*
|
||||
* This file is part of OpenTTD.
|
||||
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
|
||||
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/** @file 40bpp_optimized.hpp Optimized 40 bpp blitter. */
|
||||
|
||||
#ifndef BLITTER_40BPP_OPTIMIZED_HPP
|
||||
#define BLITTER_40BPP_OPTIMIZED_HPP
|
||||
|
||||
|
||||
#include "32bpp_optimized.hpp"
|
||||
#include "../video/video_driver.hpp"
|
||||
|
||||
/** The optimized 40 bpp blitter (for OpenGL video driver). */
|
||||
class Blitter_40bppAnim : public Blitter_32bppOptimized {
|
||||
public:
|
||||
|
||||
// void *MoveTo(void *video, int x, int y) override;
|
||||
void SetPixel(void *video, int x, int y, uint8 colour) override;
|
||||
void DrawRect(void *video, int width, int height, uint8 colour) override;
|
||||
void CopyFromBuffer(void *video, const void *src, int width, int height) override;
|
||||
void CopyToBuffer(const void *video, void *dst, int width, int height) override;
|
||||
void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) override;
|
||||
void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) override;
|
||||
void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override;
|
||||
void DrawColourMappingRect(void *dst, int width, int height, PaletteID pal) override;
|
||||
Sprite *Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator) override;
|
||||
int BufferSize(int width, int height) override;
|
||||
Blitter::PaletteAnimation UsePaletteAnimation() override;
|
||||
bool NeedsAnimationBuffer() override;
|
||||
|
||||
const char *GetName() override { return "40bpp-anim"; }
|
||||
int GetBytesPerPixel() override { return 5; }
|
||||
|
||||
template <BlitterMode mode> void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
|
||||
|
||||
protected:
|
||||
static inline Colour RealizeBlendedColour(uint8 anim, Colour c)
|
||||
{
|
||||
return anim != 0 ? AdjustBrightness(LookupColourInPalette(anim), GetColourBrightness(c)) : c;
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
/** Factory for the 40 bpp animated blitter (for OpenGL). */
|
||||
class FBlitter_40bppAnim : public BlitterFactory {
|
||||
protected:
|
||||
bool IsUsable() const override
|
||||
{
|
||||
return VideoDriver::GetInstance() == nullptr || VideoDriver::GetInstance()->HasAnimBuffer();
|
||||
}
|
||||
|
||||
public:
|
||||
FBlitter_40bppAnim() : BlitterFactory("40bpp-anim", "40bpp Animation Blitter (OpenGL)") {}
|
||||
Blitter *CreateInstance() override { return new Blitter_40bppAnim(); }
|
||||
};
|
||||
|
||||
#endif /* BLITTER_40BPP_OPTIMIZED_HPP */
|
||||
Loading…
Reference in New Issue