SDL2 gif动态图加载

参照 https://tieba.baidu.com/p/3569073088?tpl=5&red_tag=1777318765

使用mingw工具链

#include <stdbool.h>
#include <stdio.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>

#include "include/SDL_anigif.h"
#define TITLE "SDL2 test gif"
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600

int main(int argc, char *argv[])
{
    SDL_Init(SDL_INIT_VIDEO);

    SDL_Window *window = SDL_CreateWindow(TITLE, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN);
    SDL_Renderer *render = SDL_CreateRenderer(window, -, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);

    //获取gif图最大数量
    int gifMax = AG_LoadGIF("gif009.gif", NULL, );
    AG_Frame *frames = (AG_Frame *)malloc(sizeof(AG_Frame) * gifMax);
    AG_LoadGIF("gif009.gif", frames, gifMax);

    SDL_Rect rect = {, , , };

    rect.w = frames[].surface->w;
    rect.h = frames[].surface->h;

    SDL_Texture **textures = (SDL_Texture **)malloc(sizeof(SDL_CreateTextureFromSurface(render, frames[].surface)) * gifMax);

    int i;
    for (i = ; i < gifMax; i++)
    {
        textures[i] = SDL_CreateTextureFromSurface(render, frames[i].surface);
    }

    bool quit = false;
    SDL_Event event;
    i = ;
    while (!quit)
    {
        while (SDL_PollEvent(&event))
        {
            switch (event.type)
            {
            case SDL_QUIT:
                quit = true;
                break;
            }
        }
        // SDL_SetRenderDrawColor(render, 255, 200, 100, 100);
        SDL_RenderClear(render);
        SDL_RenderCopy(render, textures[i], NULL, &rect);
        i = (i + ) % gifMax;
        SDL_RenderPresent(render);
        SDL_Delay(frames->delay);
    }
    free(frames);
    free(textures);
    SDL_DestroyRenderer(render);
    SDL_DestroyWindow(window);
    SDL_Quit();

    return ;
}

编译指令 gcc  ./include/SDL_anigif.c  main.c  -o sdl_gif.exe -lmingw32 -mwindows -lSDL2main -lSDL2

希望对大家有帮助

#include <stdbool.h>

#include <stdio.h>

#include <SDL2/SDL.h>

#include <SDL2/SDL_image.h>

#include "include/SDL_anigif.h"

#define TITLE "SDL2 test gif"

#define WINDOW_WIDTH 

#define WINDOW_HEIGHT 

int main(int argc, char *argv[])

{

    SDL_Init(SDL_INIT_VIDEO);

    SDL_Window *window = SDL_CreateWindow(TITLE, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN);

    SDL_Renderer *render = SDL_CreateRenderer(window, -, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);

    //获取gif图最大数量

    int gifMax = AG_LoadGIF("gif009.gif", NULL, );

    AG_Frame *frames = (AG_Frame *)malloc(sizeof(AG_Frame) * gifMax);

    AG_LoadGIF("gif009.gif", frames, gifMax);

    SDL_Rect rect = {, , , };

    rect.w = frames[].surface->w;

    rect.h = frames[].surface->h;

    SDL_Texture **textures = (SDL_Texture **)malloc(sizeof(SDL_CreateTextureFromSurface(render, frames[].surface)) * gifMax);

    int i;

    for (i = ; i < gifMax; i++)

    {

        textures[i] = SDL_CreateTextureFromSurface(render, frames[i].surface);

    }

    bool quit = false;

    SDL_Event event;

    i = ;

    while (!quit)

    {

        while (SDL_PollEvent(&event))

        {

            switch (event.type)

            {

            case SDL_QUIT:

                quit = true;

                break;

            }

        }

        // SDL_SetRenderDrawColor(render, 255, 200, 100, 100);

        SDL_RenderClear(render);

        SDL_RenderCopy(render, textures[i], NULL, &rect);

        i = (i + ) % gifMax;

        SDL_RenderPresent(render);

        SDL_Delay(frames->delay);

    }

    free(frames);

    free(textures);

    SDL_DestroyRenderer(render);

    SDL_DestroyWindow(window);

    SDL_Quit();

    return ;

}