mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-04-02 10:42:14 -04:00
4e2eb23835
byuu says: Changelog: - added Cocoa target: higan can now be compiled for OS X Lion [Cydrak, byuu] - SNES/accuracy profile hires color blending improvements - fixes Marvelous text [AWJ] - fixed a slight bug in SNES/SA-1 VBR support caused by a typo - added support for multi-pass shaders that can load external textures (requires OpenGL 3.2+) - added game library path (used by ananke->Import Game) to Settings->Advanced - system profiles, shaders and cheats database can be stored in "all users" shared folders now (eg /usr/share on Linux) - all configuration files are in BML format now, instead of XML (much easier to read and edit this way) - main window supports drag-and-drop of game folders (but not game files / ZIP archives) - audio buffer clears when entering a modal loop on Windows (prevents audio repetition with DirectSound driver) - a substantial amount of code clean-up (probably the biggest refactoring to date) One highly desired target for this release was to default to the optimal drivers instead of the safest drivers, but because AMD drivers don't seem to like my OpenGL 3.2 driver, I've decided to postpone that. AMD has too big a market share. Hopefully with v093 officially released, we can get some public input on what AMD doesn't like.
100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
#ifndef NALL_BMP_HPP
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#define NALL_BMP_HPP
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#include <nall/file.hpp>
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//BMP reader / writer
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//note: only 24-bit RGB and 32-bit ARGB uncompressed images supported
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namespace nall {
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struct bmp {
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inline static bool read(const string& filename, uint32_t*& data, unsigned& width, unsigned& height);
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inline static bool write(const string& filename, const uint32_t* data, unsigned width, unsigned height, unsigned pitch, bool alpha = false);
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};
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bool bmp::read(const string& filename, uint32_t*& data, unsigned& width, unsigned& height) {
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file fp;
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if(fp.open(filename, file::mode::read) == false) return false;
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if(fp.size() < 0x36) return false;
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if(fp.readm(2) != 0x424d) return false;
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fp.seek(0x000a);
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unsigned offset = fp.readl(4);
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unsigned dibsize = fp.readl(4);
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if(dibsize != 40) return false;
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signed headerWidth = fp.readl(4);
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if(headerWidth < 0) return false;
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signed headerHeight = fp.readl(4);
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fp.readl(2);
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unsigned bitsPerPixel = fp.readl(2);
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if(bitsPerPixel != 24 && bitsPerPixel != 32) return false;
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unsigned compression = fp.readl(4);
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if(compression != 0) return false;
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fp.seek(offset);
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bool noFlip = headerHeight < 0;
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width = headerWidth, height = abs(headerHeight);
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data = new uint32_t[width * height];
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unsigned bytesPerPixel = bitsPerPixel / 8;
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unsigned alignedWidth = width * bytesPerPixel;
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unsigned paddingLength = 0;
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while(alignedWidth % 4) alignedWidth++, paddingLength++;
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for(unsigned y = 0; y < height; y++) {
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uint32_t* p = noFlip ? data + y * width : data + (height - 1 - y) * width;
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for(unsigned x = 0; x < width; x++, p++) {
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*p = fp.readl(bytesPerPixel);
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if(bytesPerPixel == 3) *p |= 255 << 24;
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}
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if(paddingLength) fp.readl(paddingLength);
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}
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fp.close();
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return true;
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}
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bool bmp::write(const string& filename, const uint32_t* data, unsigned width, unsigned height, unsigned pitch, bool alpha) {
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file fp;
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if(fp.open(filename, file::mode::write) == false) return false;
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unsigned bitsPerPixel = alpha ? 32 : 24;
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unsigned bytesPerPixel = bitsPerPixel / 8;
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unsigned alignedWidth = width * bytesPerPixel;
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unsigned paddingLength = 0;
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unsigned imageSize = alignedWidth * height;
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unsigned fileSize = 0x36 + imageSize;
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while(alignedWidth % 4) alignedWidth++, paddingLength++;
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fp.writem(0x424d, 2); //signature
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fp.writel(fileSize, 4); //file size
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fp.writel(0, 2); //reserved
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fp.writel(0, 2); //reserved
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fp.writel(0x36, 4); //offset
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fp.writel(40, 4); //DIB size
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fp.writel(width, 4); //width
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fp.writel(-height, 4); //height
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fp.writel(1, 2); //color planes
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fp.writel(bitsPerPixel, 2); //bits per pixel
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fp.writel(0, 4); //compression method (BI_RGB)
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fp.writel(imageSize, 4); //image data size
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fp.writel(3780, 4); //horizontal resolution
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fp.writel(3780, 4); //vertical resolution
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fp.writel(0, 4); //palette size
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fp.writel(0, 4); //important color count
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for(unsigned y = 0; y < height; y++) {
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const uint32_t* p = (const uint32_t*)((const uint8_t*)data + y * pitch);
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for(unsigned x = 0; x < width; x++) fp.writel(*p++, bytesPerPixel);
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if(paddingLength) fp.writel(0, paddingLength);
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}
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fp.close();
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return true;
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}
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}
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#endif
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