Update to SDL3

1 files changed, 283 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/test/testgeometry.c b/src/contrib/SDL-3.2.20/test/testgeometry.c
new file mode 100644
index 0000000..a510cfd
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/test/testgeometry.c
@@ -0,0 +1,283 @@
+/*
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  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:  draw a RGB triangle, with texture  */
+
+#include <stdlib.h>
+
+#include "testutils.h"
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test_common.h>
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+#include <emscripten/emscripten.h>
+#endif
+
+static SDLTest_CommonState *state;
+static bool use_texture = false;
+static SDL_Texture **sprites;
+static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
+static float angle = 0.0f;
+static int sprite_w, sprite_h;
+static int translate_cx = 0;
+static int translate_cy = 0;
+
+static int done;
+
+/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
+static void
+quit(int rc)
+{
+    SDL_free(sprites);
+    SDLTest_CommonQuit(state);
+    /* Let 'main()' return normally */
+    if (rc != 0) {
+        exit(rc);
+    }
+}
+
+static int LoadSprite(const char *file)
+{
+    int i;
+
+    for (i = 0; i < state->num_windows; ++i) {
+        /* This does the SDL_LoadBMP step repeatedly, but that's OK for test code. */
+        sprites[i] = LoadTexture(state->renderers[i], file, true, &sprite_w, &sprite_h);
+        if (!sprites[i]) {
+            return -1;
+        }
+        if (!SDL_SetTextureBlendMode(sprites[i], blendMode)) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set blend mode: %s", SDL_GetError());
+            SDL_DestroyTexture(sprites[i]);
+            return -1;
+        }
+    }
+
+    /* We're ready to roll. :) */
+    return 0;
+}
+
+static void loop(void)
+{
+    int i;
+    SDL_Event event;
+
+    /* Check for events */
+    while (SDL_PollEvent(&event)) {
+
+        if (event.type == SDL_EVENT_MOUSE_MOTION) {
+            if (event.motion.state) {
+                float xrel, yrel;
+                int window_w, window_h;
+                SDL_Window *window = SDL_GetWindowFromID(event.motion.windowID);
+                SDL_GetWindowSize(window, &window_w, &window_h);
+                xrel = event.motion.xrel;
+                yrel = event.motion.yrel;
+                if (event.motion.y < (float)window_h / 2.0f) {
+                    angle += xrel;
+                } else {
+                    angle -= xrel;
+                }
+                if (event.motion.x < (float)window_w / 2.0f) {
+                    angle -= yrel;
+                } else {
+                    angle += yrel;
+                }
+            }
+        } else if (event.type == SDL_EVENT_KEY_DOWN) {
+            if (event.key.key == SDLK_LEFT) {
+                translate_cx -= 1;
+            } else if (event.key.key == SDLK_RIGHT) {
+                translate_cx += 1;
+            } else if (event.key.key == SDLK_UP) {
+                translate_cy -= 1;
+            } else if (event.key.key == SDLK_DOWN) {
+                translate_cy += 1;
+            } else {
+                SDLTest_CommonEvent(state, &event, &done);
+            }
+        } else {
+            SDLTest_CommonEvent(state, &event, &done);
+        }
+    }
+
+    for (i = 0; i < state->num_windows; ++i) {
+        SDL_Renderer *renderer = state->renderers[i];
+        if (state->windows[i] == NULL) {
+            continue;
+        }
+        SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
+        SDL_RenderClear(renderer);
+
+        {
+            SDL_Rect viewport;
+            SDL_Vertex verts[3];
+            float a;
+            float d;
+            int cx, cy;
+
+            /* Query the sizes */
+            SDL_GetRenderViewport(renderer, &viewport);
+            SDL_zeroa(verts);
+            cx = viewport.x + viewport.w / 2;
+            cy = viewport.y + viewport.h / 2;
+            d = (viewport.w + viewport.h) / 5.f;
+
+            cx += translate_cx;
+            cy += translate_cy;
+
+            a = (angle * SDL_PI_F) / 180.0f;
+            verts[0].position.x = cx + d * SDL_cosf(a);
+            verts[0].position.y = cy + d * SDL_sinf(a);
+            verts[0].color.r = 1.0f;
+            verts[0].color.g = 0;
+            verts[0].color.b = 0;
+            verts[0].color.a = 1.0f;
+
+            a = ((angle + 120) * SDL_PI_F) / 180.0f;
+            verts[1].position.x = cx + d * SDL_cosf(a);
+            verts[1].position.y = cy + d * SDL_sinf(a);
+            verts[1].color.r = 0;
+            verts[1].color.g = 1.0f;
+            verts[1].color.b = 0;
+            verts[1].color.a = 1.0f;
+
+            a = ((angle + 240) * SDL_PI_F) / 180.0f;
+            verts[2].position.x = cx + d * SDL_cosf(a);
+            verts[2].position.y = cy + d * SDL_sinf(a);
+            verts[2].color.r = 0;
+            verts[2].color.g = 0;
+            verts[2].color.b = 1.0f;
+            verts[2].color.a = 1.0f;
+
+            if (use_texture) {
+                verts[0].tex_coord.x = 0.5f;
+                verts[0].tex_coord.y = 0.0f;
+                verts[1].tex_coord.x = 1.0f;
+                verts[1].tex_coord.y = 1.0f;
+                verts[2].tex_coord.x = 0.0f;
+                verts[2].tex_coord.y = 1.0f;
+            }
+
+            SDL_RenderGeometry(renderer, sprites[i], verts, 3, NULL, 0);
+        }
+
+        SDL_RenderPresent(renderer);
+    }
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+    if (done) {
+        emscripten_cancel_main_loop();
+    }
+#endif
+}
+
+int main(int argc, char *argv[])
+{
+    int i;
+    const char *icon = "icon.bmp";
+    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], "--blend") == 0) {
+                if (argv[i + 1]) {
+                    if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
+                        blendMode = SDL_BLENDMODE_NONE;
+                        consumed = 2;
+                    } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
+                        blendMode = SDL_BLENDMODE_BLEND;
+                        consumed = 2;
+                    } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
+                        blendMode = SDL_BLENDMODE_ADD;
+                        consumed = 2;
+                    } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
+                        blendMode = SDL_BLENDMODE_MOD;
+                        consumed = 2;
+                    } else if (SDL_strcasecmp(argv[i + 1], "mul") == 0) {
+                        blendMode = SDL_BLENDMODE_MUL;
+                        consumed = 2;
+                    }
+                }
+            } else if (SDL_strcasecmp(argv[i], "--use-texture") == 0) {
+                use_texture = true;
+                consumed = 1;
+            }
+        }
+        if (consumed < 0) {
+            static const char *options[] = { "[--blend none|blend|add|mod|mul]", "[--use-texture]", NULL };
+            SDLTest_CommonLogUsage(state, argv[0], options);
+            return 1;
+        }
+        i += consumed;
+    }
+    if (!SDLTest_CommonInit(state)) {
+        return 2;
+    }
+
+    /* Create the windows, initialize the renderers, and load the textures */
+    sprites =
+        (SDL_Texture **)SDL_malloc(state->num_windows * sizeof(*sprites));
+    if (!sprites) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory!");
+        quit(2);
+    }
+    /* Create the windows and initialize the renderers */
+    for (i = 0; i < state->num_windows; ++i) {
+        SDL_Renderer *renderer = state->renderers[i];
+        SDL_SetRenderDrawBlendMode(renderer, blendMode);
+        SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
+        SDL_RenderClear(renderer);
+        sprites[i] = NULL;
+    }
+    if (use_texture) {
+        if (LoadSprite(icon) < 0) {
+            quit(2);
+        }
+    }
+
+    /* Main render loop */
+    frames = 0;
+    then = SDL_GetTicks();
+    done = 0;
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+    emscripten_set_main_loop(loop, 0, 1);
+#else
+    while (!done) {
+        ++frames;
+        loop();
+    }
+#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;
+}