From 206a0838e995fe74aae3867f93feb0aaf2acb219 Mon Sep 17 00:00:00 2001 From: frosch Date: Sat, 18 Mar 2017 17:14:53 +0000 Subject: [PATCH] (svn r27796) -Fix [FS#6545]: 32bpp-anim blitters assumed that pitch and width of the screen were equal. --- src/blitter/32bpp_anim.cpp | 56 ++++++++++++++++++--------------- src/blitter/32bpp_anim.hpp | 4 ++- src/blitter/32bpp_anim_sse4.cpp | 5 +-- 3 files changed, 36 insertions(+), 29 deletions(-) diff --git a/src/blitter/32bpp_anim.cpp b/src/blitter/32bpp_anim.cpp index deedaf34b5..532ad23cc7 100644 --- a/src/blitter/32bpp_anim.cpp +++ b/src/blitter/32bpp_anim.cpp @@ -39,13 +39,14 @@ inline void Blitter_32bppAnim::Draw(const Blitter::BlitterParams *bp, ZoomLevel } Colour *dst = (Colour *)bp->dst + bp->top * bp->pitch + bp->left; - uint16 *anim = this->anim_buf + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * this->anim_buf_width + bp->left; + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'bp->dst' into an 'anim_buf' offset below. + uint16 *anim = this->anim_buf + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * this->anim_buf_pitch + bp->left; const byte *remap = bp->remap; // store so we don't have to access it via bp everytime for (int y = 0; y < bp->height; y++) { Colour *dst_ln = dst + bp->pitch; - uint16 *anim_ln = anim + this->anim_buf_width; + uint16 *anim_ln = anim + this->anim_buf_pitch; const Colour *src_px_ln = (const Colour *)((const byte *)src_px + *(const uint32 *)src_px); src_px++; @@ -279,9 +280,8 @@ void Blitter_32bppAnim::DrawColourMappingRect(void *dst, int width, int height, } Colour *udst = (Colour *)dst; - uint16 *anim; - - anim = this->anim_buf + ((uint32 *)dst - (uint32 *)_screen.dst_ptr); + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'dst' into an 'anim_buf' offset below. + uint16 *anim = this->anim_buf + ((uint32 *)dst - (uint32 *)_screen.dst_ptr); if (pal == PALETTE_TO_TRANSPARENT) { do { @@ -292,7 +292,7 @@ void Blitter_32bppAnim::DrawColourMappingRect(void *dst, int width, int height, anim++; } udst = udst - width + _screen.pitch; - anim = anim - width + this->anim_buf_width; + anim = anim - width + this->anim_buf_pitch; } while (--height); return; } @@ -305,7 +305,7 @@ void Blitter_32bppAnim::DrawColourMappingRect(void *dst, int width, int height, anim++; } udst = udst - width + _screen.pitch; - anim = anim - width + this->anim_buf_width; + anim = anim - width + this->anim_buf_pitch; } while (--height); return; } @@ -319,7 +319,8 @@ void Blitter_32bppAnim::SetPixel(void *video, int x, int y, uint8 colour) /* Set the colour 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] = colour | (DEFAULT_BRIGHTNESS << 8); + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'video' into an 'anim_buf' offset below. + this->anim_buf[((uint32 *)video - (uint32 *)_screen.dst_ptr) + x + y * this->anim_buf_pitch] = colour | (DEFAULT_BRIGHTNESS << 8); } void Blitter_32bppAnim::DrawRect(void *video, int width, int height, uint8 colour) @@ -331,9 +332,8 @@ void Blitter_32bppAnim::DrawRect(void *video, int width, int height, uint8 colou } Colour colour32 = LookupColourInPalette(colour); - uint16 *anim_line; - - anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'video' into an 'anim_buf' offset below. + uint16 *anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; do { Colour *dst = (Colour *)video; @@ -347,7 +347,7 @@ void Blitter_32bppAnim::DrawRect(void *video, int width, int height, uint8 colou anim++; } video = (uint32 *)video + _screen.pitch; - anim_line += this->anim_buf_width; + anim_line += this->anim_buf_pitch; } while (--height); } @@ -357,6 +357,7 @@ void Blitter_32bppAnim::CopyFromBuffer(void *video, const void *src, int width, assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch); Colour *dst = (Colour *)video; const uint32 *usrc = (const uint32 *)src; + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'video' into an 'anim_buf' offset below. uint16 *anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; for (; height > 0; height--) { @@ -370,7 +371,7 @@ void Blitter_32bppAnim::CopyFromBuffer(void *video, const void *src, int width, /* Copy back the anim-buffer */ memcpy(anim_line, usrc, width * sizeof(uint16)); usrc = (const uint32 *)((const uint16 *)usrc + width); - anim_line += this->anim_buf_width; + anim_line += this->anim_buf_pitch; /* Okay, it is *very* likely that the image we stored is using * the wrong palette animated colours. There are two things we @@ -397,11 +398,11 @@ void Blitter_32bppAnim::CopyToBuffer(const void *video, void *dst, int width, in assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch); uint32 *udst = (uint32 *)dst; const uint32 *src = (const uint32 *)video; - const uint16 *anim_line; if (this->anim_buf == NULL) return; - anim_line = ((const uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'video' into an 'anim_buf' offset below. + const uint16 *anim_line = ((const uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; for (; height > 0; height--) { memcpy(udst, src, width * sizeof(uint32)); @@ -410,7 +411,7 @@ void Blitter_32bppAnim::CopyToBuffer(const void *video, void *dst, int width, in /* Copy the anim-buffer */ memcpy(udst, anim_line, width * sizeof(uint16)); udst = (uint32 *)((uint16 *)udst + width); - anim_line += this->anim_buf_width; + anim_line += this->anim_buf_pitch; } } @@ -422,8 +423,8 @@ void Blitter_32bppAnim::ScrollBuffer(void *video, int &left, int &top, int &widt /* 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; + dst = this->anim_buf + left + (top + height - 1) * this->anim_buf_pitch; + src = dst - scroll_y * this->anim_buf_pitch; /* Adjust left & width */ if (scroll_x >= 0) { @@ -436,13 +437,13 @@ void Blitter_32bppAnim::ScrollBuffer(void *video, int &left, int &top, int &widt uint th = height - scroll_y; for (; th > 0; th--) { memcpy(dst, src, tw * sizeof(uint16)); - src -= this->anim_buf_width; - dst -= this->anim_buf_width; + src -= this->anim_buf_pitch; + dst -= this->anim_buf_pitch; } } else { /* Calculate pointers */ - dst = this->anim_buf + left + top * this->anim_buf_width; - src = dst - scroll_y * this->anim_buf_width; + dst = this->anim_buf + left + top * this->anim_buf_pitch; + src = dst - scroll_y * this->anim_buf_pitch; /* Adjust left & width */ if (scroll_x >= 0) { @@ -457,8 +458,8 @@ void Blitter_32bppAnim::ScrollBuffer(void *video, int &left, int &top, int &widt uint th = height + scroll_y; for (; th > 0; th--) { memmove(dst, src, tw * sizeof(uint16)); - src += this->anim_buf_width; - dst += this->anim_buf_width; + src += this->anim_buf_pitch; + dst += this->anim_buf_pitch; } } @@ -495,6 +496,7 @@ void Blitter_32bppAnim::PaletteAnimate(const Palette &palette) anim++; } dst += _screen.pitch - this->anim_buf_width; + anim += this->anim_buf_pitch - this->anim_buf_width; } /* Make sure the backend redraws the whole screen */ @@ -508,11 +510,13 @@ Blitter::PaletteAnimation Blitter_32bppAnim::UsePaletteAnimation() void Blitter_32bppAnim::PostResize() { - if (_screen.width != this->anim_buf_width || _screen.height != this->anim_buf_height) { + if (_screen.width != this->anim_buf_width || _screen.height != this->anim_buf_height || + _screen.pitch != this->anim_buf_pitch) { /* 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(_screen.width * _screen.height); this->anim_buf_width = _screen.width; this->anim_buf_height = _screen.height; + this->anim_buf_pitch = _screen.pitch; + this->anim_buf = CallocT(this->anim_buf_height * this->anim_buf_pitch); } } diff --git a/src/blitter/32bpp_anim.hpp b/src/blitter/32bpp_anim.hpp index 4b08429edc..1b35c17663 100644 --- a/src/blitter/32bpp_anim.hpp +++ b/src/blitter/32bpp_anim.hpp @@ -20,13 +20,15 @@ protected: uint16 *anim_buf; ///< In this buffer we keep track of the 8bpp indexes so we can do palette animation int anim_buf_width; ///< The width of the animation buffer. int anim_buf_height; ///< The height of the animation buffer. + int anim_buf_pitch; ///< The pitch of the animation buffer. Palette palette; ///< The current palette. public: Blitter_32bppAnim() : anim_buf(NULL), anim_buf_width(0), - anim_buf_height(0) + anim_buf_height(0), + anim_buf_pitch(0) { this->palette = _cur_palette; } diff --git a/src/blitter/32bpp_anim_sse4.cpp b/src/blitter/32bpp_anim_sse4.cpp index 7d4b66fca6..987cb0c6ac 100644 --- a/src/blitter/32bpp_anim_sse4.cpp +++ b/src/blitter/32bpp_anim_sse4.cpp @@ -35,7 +35,8 @@ inline void Blitter_32bppSSE4_Anim::Draw(const Blitter::BlitterParams *bp, ZoomL { const byte * const remap = bp->remap; Colour *dst_line = (Colour *) bp->dst + bp->top * bp->pitch + bp->left; - uint16 *anim_line = this->anim_buf + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * this->anim_buf_width + bp->left; + assert(_screen.pitch == this->anim_buf_pitch); // precondition for translating 'bp->dst' into an 'anim_buf' offset below. + uint16 *anim_line = this->anim_buf + ((uint32 *)bp->dst - (uint32 *)_screen.dst_ptr) + bp->top * this->anim_buf_pitch + bp->left; int effective_width = bp->width; /* Find where to start reading in the source sprite. */ @@ -353,7 +354,7 @@ next_line: if (mode != BM_TRANSPARENT) src_mv_line += si->sprite_width; src_rgba_line = (const Colour*) ((const byte*) src_rgba_line + si->sprite_line_size); dst_line += bp->pitch; - anim_line += this->anim_buf_width; + anim_line += this->anim_buf_pitch; } } IGNORE_UNINITIALIZED_WARNING_STOP