From 4d0ae606112d88306916412b743fc4114f26c17e Mon Sep 17 00:00:00 2001 From: =?utf8?q?=E8=AB=8F=E8=A8=AA=E5=AD=90?= Date: Mon, 18 Dec 2023 18:25:07 +0900 Subject: [PATCH] 0.2.0 --- CHANGELOG.md | 5 + LICENSE.txt | 674 ++++++++++++++++++++++++++++++++++++++++++++++++++ Makefile | 6 +- README.md | 2 + format/png.c | 78 ------ format/png.h | 10 - format/webp.c | 50 ---- format/webp.h | 11 - main.c | 183 ++++++++------ 9 files changed, 791 insertions(+), 228 deletions(-) create mode 100644 CHANGELOG.md create mode 100644 LICENSE.txt create mode 100644 README.md delete mode 100644 format/png.c delete mode 100644 format/png.h delete mode 100644 format/webp.c delete mode 100644 format/webp.h diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..823bdea --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,5 @@ +# 0.2.0 +* XlibからSDL2に変えた方が良いと思います + +# 0.1.0 +* 開始 diff --git a/LICENSE.txt b/LICENSE.txt new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE.txt @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile b/Makefile index 49b7d81..5359259 100644 --- a/Makefile +++ b/Makefile @@ -1,11 +1,11 @@ NAME=mivfx -VERSION=0.1.0 +VERSION=0.2.0 # Linux、Haiku、かIllumos = /usr、FreeBSDかOpenBSD = /usr/local、NetBSD = /usr/pkg PREFIX=/usr CC=cc -FILES=main.c format/png.c format/webp.c +FILES=main.c CFLAGS=-Wall -Wextra -g -LDFLAGS=-lX11 -lpng -lwebp +LDFLAGS=-lSDL2 -lSDL2_image all: ${CC} ${CFLAGS} -o ${NAME} ${FILES} ${LDFLAGS} diff --git a/README.md b/README.md new file mode 100644 index 0000000..e4de789 --- /dev/null +++ b/README.md @@ -0,0 +1,2 @@ +# mivfx - minimarist image view for x +ミニマリストな画像ビューアー diff --git a/format/png.c b/format/png.c deleted file mode 100644 index f56abd4..0000000 --- a/format/png.c +++ /dev/null @@ -1,78 +0,0 @@ -#include "png.h" - -XImage* read_png(Display *d, const char *filename) { - FILE *fp = fopen(filename, "rb"); - if (!fp) { - perror("ファイルを開けられません。"); - return NULL; - } - png_structp png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); - png_infop info = png_create_info_struct(png); - - png_init_io(png, fp); - png_read_info(png, info); - - int width = png_get_image_width(png, info); - int height = png_get_image_height(png, info); - int bit_depth = png_get_bit_depth(png, info); - int color_type = png_get_color_type(png, info); - - if (bit_depth == 16) { - png_set_strip_16(png); - } - - if (color_type == PNG_COLOR_TYPE_PALETTE) { - png_set_palette_to_rgb(png); - } - if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) { - png_set_expand_gray_1_2_4_to_8(png); - } - if (png_get_valid(png, info, PNG_INFO_tRNS)) { - png_set_tRNS_to_alpha(png); - } - if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_PALETTE) { - png_set_filler(png, 0xFF, PNG_FILLER_AFTER); - } - - png_read_update_info(png, info); - - png_bytep *row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * height); - for (int y = 0; y < height; y++) { - row_pointers[y] = (png_byte*) malloc(png_get_rowbytes(png, info)); - } - - png_read_image(png, row_pointers); - - char *imgdata = malloc(4 * width * height); - char *dst = imgdata; - - for (int y = 0; y < height; y++) { - png_bytep row = row_pointers[y]; - for (int x = 0; x < width; x++) { - png_bytep px = &(row[x * 4]); - *dst++ = px[2]; // 青 - *dst++ = px[1]; // 緑 - *dst++ = px[0]; // 赤 - *dst++ = px[3]; // 透明 - } - } - - // 掃除 - for (int y = 0; y < height; y++) { - free(row_pointers[y]); - } - free(row_pointers); - - png_destroy_read_struct(&png, &info, NULL); - fclose(fp); - - // XImageを創作 - XImage* img = XCreateImage(d, CopyFromParent, 24, ZPixmap, 0, imgdata, width, height, 32, 0); - if (img == NULL) { - free(imgdata); - fprintf(stderr, "PNGのXImageを創作に失敗しました。\n"); - return NULL; - } - - return img; -} diff --git a/format/png.h b/format/png.h deleted file mode 100644 index 0bdaffa..0000000 --- a/format/png.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef _PNG_H -#define _PNG_H - -#include -#include -#include - -XImage* read_png(Display *d, const char *filename); - -#endif diff --git a/format/webp.c b/format/webp.c deleted file mode 100644 index 8f7c423..0000000 --- a/format/webp.c +++ /dev/null @@ -1,50 +0,0 @@ -#include "webp.h" - -XImage* read_webp(Display *d, const char *filename) { - FILE *fp = fopen(filename, "rb"); - if (!fp) { - perror("ファイルを開けられません。"); - return NULL; - } - - fseek(fp, 0, SEEK_END); - size_t filesize = ftell(fp); - fseek(fp, 0, SEEK_SET); - - uint8_t *data = malloc(filesize); - fread(data, filesize, 1, fp); - fclose(fp); - - int width, height; - uint8_t *imgdata = WebPDecodeRGBA(data, filesize, &width, &height); - free(data); - - if (imgdata == NULL) { - fprintf(stderr, "WEBP画像を逆符号化に失敗しました。\n"); - return NULL; - } - - // RGBAからARGBに交換（X11の為） - uint32_t *argbdata = malloc(4 * width * height); - uint32_t *dest = argbdata; - uint8_t *src = imgdata; - for (int y = 0; y < height; ++y) { - for (int x = 0; x < width; ++x) { - uint8_t r = *src++; - uint8_t g = *src++; - uint8_t b = *src++; - uint8_t a = *src++; - *dest++ = (a << 24) | (r << 16) | (g << 8) | b; - } - } - free(imgdata); - - XImage* img = XCreateImage(d, CopyFromParent, 24, ZPixmap, 0, (char*)argbdata, width, height, 32, 0); - if (img == NULL) { - free(argbdata); - fprintf(stderr, "WEBPのXImageを創作に失敗しました。\n"); - return NULL; - } - - return img; -} diff --git a/format/webp.h b/format/webp.h deleted file mode 100644 index fa83d58..0000000 --- a/format/webp.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef _WEBP_H -#define _WEBP_H - -#include -#include -#include -#include - -XImage* read_webp(Display *d, const char *filename); - -#endif diff --git a/main.c b/main.c index c9a528d..65f0feb 100644 --- a/main.c +++ b/main.c @@ -1,106 +1,137 @@ +#include +#include #include -#include -#include -#include +#include -#include -#include -#include - -#include "format/png.h" -#include "format/webp.h" - -int XErrorHandlerd(Display *d, XErrorEvent *event) { - char error_text[120]; - XGetErrorText(d, event->error_code, error_text, sizeof(error_text)); - fprintf(stderr, "Xエラー: %s\n", error_text); - return 0; -} - -XImage* openimg(Display *d, const char *filename) { - FILE *fp; - fp = fopen(filename, "rb"); - if (!fp) { - perror("ファイルを開けられません。"); - return NULL; +int main(int argc, char* argv[]) { + if (argc < 2) { + printf("使用方法： %s <画像ファイル>\n", argv[0]); + return 1; } - unsigned char buf[16]; - fread(buf, 1, 16, fp); - fclose(fp); + SDL_Window* window = NULL; + SDL_Renderer* renderer = NULL; + SDL_Texture* texture = NULL; - if (memcmp(buf, "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A", 8) == 0) { // PNG - return read_png(d, filename); - } else if (memcmp(buf + 8, "WEBP", 4) == 0) { // WEBP - return read_webp(d, filename); + // SDL2とSDL2_imageの初期設定 + if (SDL_Init(SDL_INIT_VIDEO) < 0) { + printf("SDLを初期設定出来なかった：%s\n", SDL_GetError()); + return 1; } - fprintf(stderr, "不明なファイル種類。\n"); - return NULL; -} - -int main(int argc, char **argv) { - XSetErrorHandler(XErrorHandlerd); - if (argc < 2) { - printf("使用方法： %s <画像ファイル>\n", argv[0]); + if (!(IMG_Init(IMG_INIT_PNG) & IMG_INIT_PNG)) { + printf("SDL_imageを初期設定出来なかった：%s\n", SDL_GetError()); + SDL_Quit(); return 1; } - Display *d = XOpenDisplay(NULL); - if (d == NULL) { - fprintf(stderr, "画面を開けられません。\n"); + // 画像の読込 + SDL_Surface* imgsurface = IMG_Load(argv[1]); + if (imgsurface == NULL) { + printf("画像の読込に失敗：%s\n", IMG_GetError()); + SDL_DestroyRenderer(renderer); + SDL_DestroyWindow(window); + SDL_Quit(); return 1; } - int scr = DefaultScreen(d); - Window w = XCreateSimpleWindow(d, RootWindow(d, scr), 0, 0, 500, 500, 1, BlackPixel(d, scr), WhitePixel(d, scr)); - XSelectInput(d, w, ExposureMask | KeyPressMask); - XMapWindow(d, w); - XFlush(d); - - GC gc = XCreateGC(d, w, 0, NULL); - if (gc == NULL) { - fprintf(stderr, "グラフィックス内容を創作に失敗しました。\n"); + // 画像の大きさの受取 + int imgWidth = imgsurface->w; + int imgHeight = imgsurface->h; + /* float aspectRatio = (float)imgWidth / imgHeight; */ + + // 画面の大きさの受取 + SDL_DisplayMode DM; + SDL_GetCurrentDisplayMode(0, &DM); + int screenWidth = DM.w; + int screenHeight = DM.h; + + // 画像は50x50以下じゃ駄目 + int minWidth = 50; + int minHeight = 50; + if (imgWidth < minWidth) imgWidth = minWidth; + if (imgHeight < minHeight) imgHeight = minHeight; + + // ウィンドウの大きさの設定 + int windowWidth = (imgWidth > screenWidth) ? screenWidth : imgWidth; + int windowHeight = (imgHeight > screenHeight) ? screenHeight : imgHeight; + + // ウィンドウの作成 + SDL_SetHint(SDL_HINT_VIDEO_WINDOW_SHARE_PIXEL_FORMAT, "1"); + window = SDL_CreateWindow("mivfx", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, windowWidth, windowHeight, SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE); + if (window == NULL) { + printf("ウィンドウの作成に失敗：%s\n", SDL_GetError()); + SDL_Quit(); return 1; } - XImage *ximg = openimg(d, argv[1]); - if (ximg == NULL) { - fprintf(stderr, "画像を開けられません： %s\n", argv[1]); - XFreeGC(d, gc); - XCloseDisplay(d); + // レンダーの作成 + renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED); + if (renderer == NULL) { + printf("レンダーの作成に失敗：%s\n", SDL_GetError()); + SDL_DestroyWindow(window); + SDL_Quit(); return 1; } - double scale = 1.0; - - while (1) { - XEvent e; - XNextEvent(d, &e); + texture = SDL_CreateTextureFromSurface(renderer, imgsurface); + SDL_FreeSurface(imgsurface); + if (texture == NULL) { + SDL_DestroyRenderer(renderer); + SDL_DestroyWindow(window); + SDL_Quit(); + return 1; + } - if (e.type == Expose) { - int nw = (int)(ximg->width * scale); - int nh = (int)(ximg->height * scale); - XPutImage(d, w, gc, ximg, 0, 0, 0, 0, nw, nh); + // メインループ + SDL_Event e; + bool quit = false; + while (!quit) { + // イベント + while (SDL_PollEvent(&e) != 0) { + if (e.type == SDL_QUIT) { + quit = true; + } else if (e.type == SDL_WINDOWEVENT && e.window.event == SDL_WINDOWEVENT_RESIZED) { + // ウィンドウのサイズが変わった場合 + int newWidth = e.window.data1; + int newHeight = e.window.data2; + + // 縦横比を変わらずに新しい大きさの算数 + /* float newAspectRatio = (float)newWidth / newHeight; */ + int scaledWidth, scaledHeight; + /* if (newAspectRatio > aspectRatio) { */ + // 画像よりウィンドウの方が広い場合 + scaledHeight = newHeight; + scaledWidth = newWidth; + //= (int)(scaledHeight * aspectRatio); + /* } else { */ + /* // 画像よりウィンドウの方が高い場合 */ + /* scaledWidth = newWidth; */ + /* scaledHeight = (int)(scaledWidth / aspectRatio); */ + /* } */ + + // テキスチャーのれんダーリングサイズの設定 + SDL_Rect renderQuad = { (newWidth - scaledWidth) / 2, (newHeight - scaledHeight) / 2, scaledWidth, scaledHeight }; + SDL_RenderCopy(renderer, texture, NULL, &renderQuad); + } } - if (e.type == KeyPress) { - XWindowAttributes attrs; - XGetWindowAttributes(d, w, &attrs); + // 画面の更新 + SDL_RenderClear(renderer); - KeySym keysym = XLookupKeysym(&e.xkey, 0); + // テキスチャーの表示 + SDL_RenderCopy(renderer, texture, NULL, NULL); - if (keysym == XK_q) { - break; - } - } + // 画面の更新 + SDL_RenderPresent(renderer); } // 掃除 - XFreeGC(d, gc); - XDestroyImage(ximg); - XDestroyWindow(d, w); - XCloseDisplay(d); + SDL_DestroyTexture(texture); + SDL_DestroyRenderer(renderer); + SDL_DestroyWindow(window); + IMG_Quit(); + SDL_Quit(); return 0; } -- 2.43.0