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Location: cpp/openttd-patchpack/source/src/blitter/32bpp_anim.cpp - annotation
r8802:3a3f8a172f6c
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(svn r12542) -Fix [Makefile]: Don't install scenarios into the current user's homedir when running 'make install', that is silly. Simply always install scenarios system wide instead.
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r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e r7170:38b143754b40 r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e r6971:b3bdb012053e | /* $Id$ */
#include "../stdafx.h"
#include "../core/alloc_func.hpp"
#include "../gfx_func.h"
#include "../zoom_func.h"
#include "../debug.h"
#include "../video/video_driver.hpp"
#include "32bpp_anim.hpp"
#include "../table/sprites.h"
static FBlitter_32bppAnim iFBlitter_32bppAnim;
void Blitter_32bppAnim::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
{
if (_screen_disable_anim) {
/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent Draw() */
Blitter_32bppOptimized::Draw(bp, mode, zoom);
return;
}
const SpriteLoader::CommonPixel *src, *src_line;
uint32 *dst, *dst_line;
uint8 *anim, *anim_line;
if (_screen.width != this->anim_buf_width || _screen.height != this->anim_buf_height) {
/* The size of the screen changed; we can assume we can wipe all data from our buffer */
free(this->anim_buf);
this->anim_buf = CallocT<uint8>(_screen.width * _screen.height);
this->anim_buf_width = _screen.width;
this->anim_buf_height = _screen.height;
}
/* Find where to start reading in the source sprite */
src_line = (const SpriteLoader::CommonPixel *)bp->sprite + (bp->skip_top * bp->sprite_width + bp->skip_left) * ScaleByZoom(1, zoom);
dst_line = (uint32 *)bp->dst + bp->top * bp->pitch + bp->left;
anim_line = this->anim_buf + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * this->anim_buf_width + bp->left;
for (int y = 0; y < bp->height; y++) {
dst = dst_line;
dst_line += bp->pitch;
src = src_line;
src_line += bp->sprite_width * ScaleByZoom(1, zoom);
anim = anim_line;
anim_line += this->anim_buf_width;
for (int x = 0; x < bp->width; x++) {
if (src->a == 0) {
/* src->r is 'misused' here to indicate how much more pixels are following with an alpha of 0 */
int skip = UnScaleByZoom(src->r, zoom);
dst += skip;
anim += skip;
x += skip - 1;
src += ScaleByZoom(1, zoom) * skip;
continue;
}
switch (mode) {
case BM_COLOUR_REMAP:
/* In case the m-channel is zero, do not remap this pixel in any way */
if (src->m == 0) {
*dst = ComposeColourRGBA(src->r, src->g, src->b, src->a, *dst);
*anim = 0;
} else {
if (bp->remap[src->m] != 0) {
*dst = ComposeColourPA(this->LookupColourInPalette(bp->remap[src->m]), src->a, *dst);
*anim = bp->remap[src->m];
}
}
break;
case BM_TRANSPARENT:
/* TODO -- We make an assumption here that the remap in fact is transparency, not some color.
* This is never a problem with the code we produce, but newgrfs can make it fail... or at least:
* we produce a result the newgrf maker didn't expect ;) */
/* Make the current color a bit more black, so it looks like this image is transparent */
*dst = MakeTransparent(*dst, 192);
*anim = bp->remap[*anim];
break;
default:
/* Above 217 is palette animation */
if (src->m >= 217) *dst = ComposeColourPA(this->LookupColourInPalette(src->m), src->a, *dst);
else *dst = ComposeColourRGBA(src->r, src->g, src->b, src->a, *dst);
*anim = src->m;
break;
}
dst++;
anim++;
src += ScaleByZoom(1, zoom);
}
}
}
void Blitter_32bppAnim::DrawColorMappingRect(void *dst, int width, int height, int pal)
{
if (_screen_disable_anim) {
/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent DrawColorMappingRect() */
Blitter_32bppOptimized::DrawColorMappingRect(dst, width, height, pal);
return;
}
uint32 *udst = (uint32 *)dst;
uint8 *anim;
anim = this->anim_buf + ((uint32 *)dst - (uint32 *)_screen.dst_ptr);
if (pal == PALETTE_TO_TRANSPARENT) {
do {
for (int i = 0; i != width; i++) {
*udst = MakeTransparent(*udst, 154);
*anim = 0;
udst++;
anim++;
}
udst = udst - width + _screen.pitch;
anim = anim - width + this->anim_buf_width;
} while (--height);
return;
}
if (pal == PALETTE_TO_STRUCT_GREY) {
do {
for (int i = 0; i != width; i++) {
*udst = MakeGrey(*udst);
*anim = 0;
udst++;
anim++;
}
udst = udst - width + _screen.pitch;
anim = anim - width + this->anim_buf_width;
} while (--height);
return;
}
DEBUG(misc, 0, "32bpp blitter doesn't know how to draw this color table ('%d')", pal);
}
void Blitter_32bppAnim::SetPixel(void *video, int x, int y, uint8 color)
{
*((uint32 *)video + x + y * _screen.pitch) = LookupColourInPalette(color);
/* Set the color in the anim-buffer too, if we are rendering to the screen */
if (_screen_disable_anim) return;
this->anim_buf[((uint32 *)video - (uint32 *)_screen.dst_ptr) + x + y * this->anim_buf_width] = color;
}
void Blitter_32bppAnim::SetPixelIfEmpty(void *video, int x, int y, uint8 color)
{
uint32 *dst = (uint32 *)video + x + y * _screen.pitch;
if (*dst == 0) {
*dst = LookupColourInPalette(color);
/* Set the color in the anim-buffer too, if we are rendering to the screen */
if (_screen_disable_anim) return;
this->anim_buf[((uint32 *)video - (uint32 *)_screen.dst_ptr) + x + y * this->anim_buf_width] = color;
}
}
void Blitter_32bppAnim::DrawRect(void *video, int width, int height, uint8 color)
{
if (_screen_disable_anim) {
/* This means our output is not to the screen, so we can't be doing any animation stuff, so use our parent DrawRect() */
Blitter_32bppOptimized::DrawRect(video, width, height, color);
return;
}
uint32 color32 = LookupColourInPalette(color);
uint8 *anim_line;
anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf;
do {
uint32 *dst = (uint32 *)video;
uint8 *anim = anim_line;
for (int i = width; i > 0; i--) {
*dst = color32;
/* Set the color in the anim-buffer too */
*anim = color;
dst++;
anim++;
}
video = (uint32 *)video + _screen.pitch;
anim_line += this->anim_buf_width;
} while (--height);
}
void Blitter_32bppAnim::CopyFromBuffer(void *video, const void *src, int width, int height)
{
assert(!_screen_disable_anim);
assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
uint32 *dst = (uint32 *)video;
uint32 *usrc = (uint32 *)src;
uint8 *anim_line;
anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf;
for (; height > 0; height--) {
memcpy(dst, usrc, width * sizeof(uint32));
usrc += width;
dst += _screen.pitch;
/* Copy back the anim-buffer */
memcpy(anim_line, usrc, width * sizeof(uint8));
usrc = (uint32 *)((uint8 *)usrc + width);
anim_line += this->anim_buf_width;
}
/* We update the palette (or the pixels that do animation) immediatly, to avoid graphical glitches */
this->PaletteAnimate(217, _use_dos_palette ? 38 : 28);
}
void Blitter_32bppAnim::CopyToBuffer(const void *video, void *dst, int width, int height)
{
assert(!_screen_disable_anim);
assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
uint32 *udst = (uint32 *)dst;
uint32 *src = (uint32 *)video;
uint8 *anim_line;
if (this->anim_buf == NULL) return;
anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf;
for (; height > 0; height--) {
memcpy(udst, src, width * sizeof(uint32));
src += _screen.pitch;
udst += width;
/* Copy the anim-buffer */
memcpy(udst, anim_line, width * sizeof(uint8));
udst = (uint32 *)((uint8 *)udst + width);
anim_line += this->anim_buf_width;
}
}
void Blitter_32bppAnim::ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y)
{
assert(!_screen_disable_anim);
assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch);
uint8 *dst, *src;
/* We need to scroll the anim-buffer too */
if (scroll_y > 0) {
dst = this->anim_buf + left + (top + height - 1) * this->anim_buf_width;
src = dst - scroll_y * this->anim_buf_width;
/* Adjust left & width */
if (scroll_x >= 0) 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 -= this->anim_buf_width;
dst -= this->anim_buf_width;
}
} else {
/* Calculate pointers */
dst = this->anim_buf + left + top * this->anim_buf_width;
src = dst - scroll_y * this->anim_buf_width;
/* 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 += this->anim_buf_width;
dst += this->anim_buf_width;
}
}
Blitter_32bppBase::ScrollBuffer(video, left, top, width, height, scroll_x, scroll_y);
}
int Blitter_32bppAnim::BufferSize(int width, int height)
{
return width * height * (sizeof(uint32) + sizeof(uint8));
}
void Blitter_32bppAnim::PaletteAnimate(uint start, uint count)
{
assert(!_screen_disable_anim);
uint8 *anim = this->anim_buf;
/* Never repaint the transparency pixel */
if (start == 0) start++;
/* Let's walk the anim buffer and try to find the pixels */
for (int y = 0; y < this->anim_buf_height; y++) {
for (int x = 0; x < this->anim_buf_width; x++) {
if (*anim >= start && *anim <= start + count) {
/* Update this pixel */
this->SetPixel(_screen.dst_ptr, x, y, *anim);
}
anim++;
}
}
/* Make sure the backend redraws the whole screen */
_video_driver->MakeDirty(0, 0, _screen.width, _screen.height);
}
Blitter::PaletteAnimation Blitter_32bppAnim::UsePaletteAnimation()
{
return Blitter::PALETTE_ANIMATION_BLITTER;
}
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