eBookReaderSwitch/source/SDL_helper.c

78 lines
2.4 KiB
C

#include "SDL_helper.h"
void SDL_ClearScreen(SDL_Renderer *renderer, SDL_Color colour)
{
SDL_SetRenderDrawColor(renderer, colour.r, colour.g, colour.b, colour.a);
SDL_RenderClear(renderer);
}
void SDL_DrawRect(SDL_Renderer *renderer, int x, int y, int w, int h, SDL_Color colour)
{
SDL_Rect rect;
rect.x = x; rect.y = y; rect.w = w; rect.h = h;
SDL_SetRenderDrawColor(renderer, colour.r, colour.g, colour.b, colour.a);
SDL_RenderFillRect(renderer, &rect);
}
void SDL_DrawCircle(SDL_Renderer *renderer, int x, int y, int r, SDL_Color colour)
{
filledCircleRGBA(renderer, x, y, r, colour.r, colour.g, colour.b, colour.a);
return;
}
void SDL_DrawText(SDL_Surface* window_surface, TTF_Font *font, int x, int y, SDL_Color colour, const char *text)
{
SDL_Surface *surface = TTF_RenderText_Blended_Wrapped(font, text, colour, 1280);
SDL_SetSurfaceAlphaMod(surface, colour.a);
SDL_Rect position = {x, y, surface->w, surface->h};
SDL_BlitSurface(surface, NULL, window_surface, &position);
SDL_FreeSurface(surface);
}
void SDL_DrawTextf(SDL_Surface* window_surface, TTF_Font *font, int x, int y, SDL_Color colour, const char* text, ...)
{
char buffer[256];
va_list args;
va_start(args, text);
vsnprintf(buffer, 256, text, args);
SDL_DrawText(window_surface, font, x, y, colour, buffer);
va_end(args);
}
void SDL_LoadImage(SDL_Renderer *renderer, SDL_Texture **texture, char *path)
{
SDL_Surface *loaded_surface = NULL;
loaded_surface = IMG_Load(path);
if (loaded_surface)
{
Uint32 colorkey = SDL_MapRGB(loaded_surface->format, 0, 0, 0);
SDL_SetColorKey(loaded_surface, SDL_TRUE, colorkey);
*texture = SDL_CreateTextureFromSurface(renderer, loaded_surface);
}
SDL_FreeSurface(loaded_surface);
}
void SDL_LoadImageBuf(SDL_Renderer *renderer, SDL_Texture **texture, void *mem, int size)
{
SDL_Surface *loaded_surface = NULL;
SDL_RWops *rw = SDL_RWFromMem(mem, size);
loaded_surface = IMG_Load_RW(rw, 1);
if (loaded_surface)
{
Uint32 colorkey = SDL_MapRGB(loaded_surface->format, 0, 0, 0);
SDL_SetColorKey(loaded_surface, SDL_TRUE, colorkey);
*texture = SDL_CreateTextureFromSurface(renderer, loaded_surface);
}
SDL_FreeSurface(loaded_surface);
}
void SDL_DrawImage(SDL_Renderer *renderer, SDL_Texture *texture, int x, int y, int w, int h)
{
SDL_Rect position;
position.x = x; position.y = y; position.w = w; position.h = h;
SDL_RenderCopy(renderer, texture, NULL, &position);
}