eden-emu/SDL
15
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-06-07 16:01:10 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

testdrawchessboard: Allow using the standard render API

Browse source
This commit is contained in:
Cameron Cawley 2024-05-01 22:12:08 +01:00 • committed by Sam Lantinga
parent 7556c44796
commit 2bef8852fb
1 changed files with 21 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

28
test/testdrawchessboard.c
View file

@ -12,7 +12,10 @@
This file is created by : Nitin Jain (nitin.j4\samsung.com) This file is created by : Nitin Jain (nitin.j4\samsung.com)
*/ */
/* Sample program: Draw a Chess Board by using SDL_CreateSoftwareRenderer API */ /* Sample program: Draw a Chess Board by using the SDL render API */
/* This allows testing SDL_CreateSoftwareRenderer with the window surface API. Undefine it to use the accelerated renderer instead. */
#define USE_SOFTWARE_RENDERER
#include <SDL3/SDL.h> #include <SDL3/SDL.h>
#include <SDL3/SDL_main.h> #include <SDL3/SDL_main.h>
@ -24,9 +27,11 @@
static SDL_Window *window; static SDL_Window *window;
static SDL_Renderer *renderer; static SDL_Renderer *renderer;
static SDL_Surface *surface;
static int done; static int done;
#ifdef USE_SOFTWARE_RENDERER
static SDL_Surface *surface;
#endif
static void DrawChessBoard(void) static void DrawChessBoard(void)
{ {
@ -57,7 +62,6 @@ static void DrawChessBoard(void)
} }
} }
} }
SDL_RenderPresent(renderer);
} }
static void loop(void) static void loop(void)
@ -65,6 +69,7 @@ static void loop(void)
SDL_Event e; SDL_Event e;
while (SDL_PollEvent(&e)) { while (SDL_PollEvent(&e)) {
#ifdef USE_SOFTWARE_RENDERER
/* Re-create when window surface has been resized */ /* Re-create when window surface has been resized */
if (e.type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) { if (e.type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) {
@ -76,6 +81,7 @@ static void loop(void)
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF); SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
SDL_RenderClear(renderer); SDL_RenderClear(renderer);
} }
#endif
if (e.type == SDL_EVENT_QUIT) { if (e.type == SDL_EVENT_QUIT) {
done = 1; done = 1;
@ -94,11 +100,19 @@ static void loop(void)
} }
} }
/* Clear the rendering surface with the specified color */
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
SDL_RenderClear(renderer);
DrawChessBoard(); DrawChessBoard();
SDL_RenderPresent(renderer);
#ifdef USE_SOFTWARE_RENDERER
/* Got everything on rendering surface, /* Got everything on rendering surface,
now Update the drawing image on window screen */ now Update the drawing image on window screen */
SDL_UpdateWindowSurface(window); SDL_UpdateWindowSurface(window);
#endif
} }
int main(int argc, char *argv[]) int main(int argc, char *argv[])
@ -128,17 +142,17 @@ int main(int argc, char *argv[])
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Window creation fail : %s\n", SDL_GetError()); SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Window creation fail : %s\n", SDL_GetError());
return 1; return 1;
} }
#ifdef USE_SOFTWARE_RENDERER
surface = SDL_GetWindowSurface(window); surface = SDL_GetWindowSurface(window);
renderer = SDL_CreateSoftwareRenderer(surface); renderer = SDL_CreateSoftwareRenderer(surface);
#else
renderer = SDL_CreateRenderer(window, NULL);
#endif
if (!renderer) { if (!renderer) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Render creation for surface fail : %s\n", SDL_GetError()); SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Render creation for surface fail : %s\n", SDL_GetError());
return 1; return 1;
} }
/* Clear the rendering surface with the specified color */
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
SDL_RenderClear(renderer);
/* Draw the Image on rendering surface */ /* Draw the Image on rendering surface */
done = 0; done = 0;
#ifdef SDL_PLATFORM_EMSCRIPTEN #ifdef SDL_PLATFORM_EMSCRIPTEN