From 6aaedb813fa11ba0679c3051bc2eb28646b9506c Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 30 Aug 2025 16:53:58 -0700 Subject: Update to SDL3 --- src/contrib/SDL-3.2.20/test/testviewport.c | 234 +++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 src/contrib/SDL-3.2.20/test/testviewport.c (limited to 'src/contrib/SDL-3.2.20/test/testviewport.c') diff --git a/src/contrib/SDL-3.2.20/test/testviewport.c b/src/contrib/SDL-3.2.20/test/testviewport.c new file mode 100644 index 0000000..01e27e7 --- /dev/null +++ b/src/contrib/SDL-3.2.20/test/testviewport.c @@ -0,0 +1,234 @@ +/* + Copyright (C) 1997-2025 Sam Lantinga + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely. +*/ +/* Simple program: Check viewports */ + +#include +#include +#include +#include "testutils.h" + +#ifdef SDL_PLATFORM_EMSCRIPTEN +#include +#endif + +#include + +static SDLTest_CommonState *state; + +static SDL_Rect viewport; +static int done, j; +static bool use_target = false; +#ifdef SDL_PLATFORM_EMSCRIPTEN +static Uint32 wait_start; +#endif +static SDL_Texture *sprite; +static int sprite_w, sprite_h; + +/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ +static void +quit(int rc) +{ + SDLTest_CommonQuit(state); + /* Let 'main()' return normally */ + if (rc != 0) { + exit(rc); + } +} + +static void DrawOnViewport(SDL_Renderer *renderer) +{ + SDL_FRect rect; + SDL_Rect cliprect; + + /* Set the viewport */ + SDL_SetRenderViewport(renderer, &viewport); + + /* Draw a gray background */ + SDL_SetRenderDrawColor(renderer, 0x80, 0x80, 0x80, 0xFF); + SDL_RenderClear(renderer); + + /* Test inside points */ + SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0x00, 0xFF); + SDL_RenderPoint(renderer, (float)(viewport.h / 2 + 20), (float)(viewport.w / 2)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2 - 20), (float)(viewport.w / 2)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 - 20)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 + 20)); + + /* Test horizontal and vertical lines */ + SDL_SetRenderDrawColor(renderer, 0x00, 0xFF, 0x00, 0xFF); + SDL_RenderLine(renderer, 1.0f, 0.0f, (float)(viewport.w - 2), 0.0f); + SDL_RenderLine(renderer, 1.0f, (float)(viewport.h - 1), (float)(viewport.w - 2), (float)(viewport.h - 1)); + SDL_RenderLine(renderer, 0.0f, 1.0f, 0.0f, (float)(viewport.h - 2)); + SDL_RenderLine(renderer, (float)(viewport.w - 1), 1.0f, (float)(viewport.w - 1), (float)(viewport.h - 2)); + + /* Test diagonal lines */ + SDL_SetRenderDrawColor(renderer, 0x00, 0xff, 0xFF, 0xFF); + SDL_RenderLine(renderer, 0.0f, 0.0f, (float)(viewport.w - 1), (float)(viewport.h - 1)); + SDL_RenderLine(renderer, (float)(viewport.w - 1), 0.0f, 0.0f, (float)(viewport.h - 1)); + + /* Test outside points */ + SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0x00, 0xFF); + SDL_RenderPoint(renderer, (float)(viewport.h / 2 + viewport.h), (float)(viewport.w / 2)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2 - viewport.h), (float)(viewport.w / 2)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 - viewport.w)); + SDL_RenderPoint(renderer, (float)(viewport.h / 2), (float)(viewport.w / 2 + viewport.w)); + + /* Add a box at the top */ + rect.w = 8.0f; + rect.h = 8.0f; + rect.x = (viewport.w - rect.w) / 2; + rect.y = 0.0f; + SDL_RenderFillRect(renderer, &rect); + + /* Add a clip rect and fill it with the sprite */ + cliprect.x = (viewport.w - sprite->w) / 2; + cliprect.y = (viewport.h - sprite->h) / 2; + cliprect.w = sprite->w; + cliprect.h = sprite->h; + SDL_RectToFRect(&cliprect, &rect); + SDL_SetRenderClipRect(renderer, &cliprect); + SDL_RenderTexture(renderer, sprite, NULL, &rect); + SDL_SetRenderClipRect(renderer, NULL); +} + +static void loop(void) +{ + SDL_Event event; + int i; +#ifdef SDL_PLATFORM_EMSCRIPTEN + /* Avoid using delays */ + if (SDL_GetTicks() - wait_start < 1000) { + return; + } + wait_start = SDL_GetTicks(); +#endif + /* Check for events */ + while (SDL_PollEvent(&event)) { + SDLTest_CommonEvent(state, &event, &done); + } + + /* Move a viewport box in steps around the screen */ + viewport.x = j * 100; + viewport.y = viewport.x; + viewport.w = 100 + j * 50; + viewport.h = 100 + j * 50; + j = (j + 1) % 4; + SDL_Log("Current Viewport x=%i y=%i w=%i h=%i", viewport.x, viewport.y, viewport.w, viewport.h); + + for (i = 0; i < state->num_windows; ++i) { + if (state->windows[i] == NULL) { + continue; + } + + /* Draw using viewport */ + DrawOnViewport(state->renderers[i]); + + /* Update the screen! */ + if (use_target) { + SDL_SetRenderTarget(state->renderers[i], NULL); + SDL_RenderTexture(state->renderers[i], state->targets[i], NULL, NULL); + SDL_RenderPresent(state->renderers[i]); + SDL_SetRenderTarget(state->renderers[i], state->targets[i]); + } else { + SDL_RenderPresent(state->renderers[i]); + } + } + +#ifdef SDL_PLATFORM_EMSCRIPTEN + if (done) { + emscripten_cancel_main_loop(); + } +#endif +} + +int main(int argc, char *argv[]) +{ + int i; + Uint64 then, now; + Uint32 frames; + + /* Initialize test framework */ + state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO); + if (!state) { + return 1; + } + + for (i = 1; i < argc;) { + int consumed; + + consumed = SDLTest_CommonArg(state, i); + if (consumed == 0) { + consumed = -1; + if (SDL_strcasecmp(argv[i], "--target") == 0) { + use_target = true; + consumed = 1; + } + } + if (consumed < 0) { + static const char *options[] = { "[--target]", NULL }; + SDLTest_CommonLogUsage(state, argv[0], options); + quit(1); + } + i += consumed; + } + if (!SDLTest_CommonInit(state)) { + quit(2); + } + + sprite = LoadTexture(state->renderers[0], "icon.bmp", true, &sprite_w, &sprite_h); + + if (!sprite) { + quit(2); + } + + if (use_target) { + int w, h; + + for (i = 0; i < state->num_windows; ++i) { + SDL_GetWindowSize(state->windows[i], &w, &h); + state->targets[i] = SDL_CreateTexture(state->renderers[i], SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, w, h); + SDL_SetRenderTarget(state->renderers[i], state->targets[i]); + } + } + + for (i = 0; i < state->num_windows; ++i) { + SDL_Renderer *renderer = state->renderers[i]; + SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF); + SDL_RenderClear(renderer); + } + + /* Main render loop */ + frames = 0; + then = SDL_GetTicks(); + done = 0; + j = 0; + +#ifdef SDL_PLATFORM_EMSCRIPTEN + wait_start = SDL_GetTicks(); + emscripten_set_main_loop(loop, 0, 1); +#else + while (!done) { + ++frames; + loop(); + SDL_Delay(1000); + } +#endif + + /* Print out some timing information */ + now = SDL_GetTicks(); + if (now > then) { + double fps = ((double)frames * 1000) / (now - then); + SDL_Log("%2.2f frames per second", fps); + } + quit(0); + return 0; +} -- cgit v1.2.3