Update to SDL3

1 files changed, 334 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/test/testgles.c b/src/contrib/SDL-3.2.20/test/testgles.c
new file mode 100644
index 0000000..73097c7
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/test/testgles.c
@@ -0,0 +1,334 @@
+/*
+  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.
+*/
+#include <stdlib.h>
+
+#include <SDL3/SDL_test_common.h>
+#include <SDL3/SDL_main.h>
+
+#if defined(SDL_PLATFORM_IOS) || defined(SDL_PLATFORM_ANDROID)
+#define HAVE_OPENGLES
+#endif
+
+#ifdef HAVE_OPENGLES
+
+#include <SDL3/SDL_opengles.h>
+
+static SDLTest_CommonState *state;
+static SDL_GLContext *context = NULL;
+static int depth = 16;
+
+/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
+static void
+quit(int rc)
+{
+    int i;
+
+    if (context) {
+        for (i = 0; i < state->num_windows; i++) {
+            if (context[i]) {
+                SDL_GL_DestroyContext(context[i]);
+            }
+        }
+
+        SDL_free(context);
+    }
+
+    SDLTest_CommonQuit(state);
+    /* Let 'main()' return normally */
+    if (rc != 0) {
+        exit(rc);
+    }
+}
+
+static void
+Render(void)
+{
+    static GLubyte color[8][4] = { { 255, 0, 0, 0 },
+                                   { 255, 0, 0, 255 },
+                                   { 0, 255, 0, 255 },
+                                   { 0, 255, 0, 255 },
+                                   { 0, 255, 0, 255 },
+                                   { 255, 255, 255, 255 },
+                                   { 255, 0, 255, 255 },
+                                   { 0, 0, 255, 255 } };
+    static GLfloat cube[8][3] = { { 0.5, 0.5, -0.5 },
+                                  { 0.5f, -0.5f, -0.5f },
+                                  { -0.5f, -0.5f, -0.5f },
+                                  { -0.5f, 0.5f, -0.5f },
+                                  { -0.5f, 0.5f, 0.5f },
+                                  { 0.5f, 0.5f, 0.5f },
+                                  { 0.5f, -0.5f, 0.5f },
+                                  { -0.5f, -0.5f, 0.5f } };
+    static GLubyte indices[36] = { 0, 3, 4,
+                                   4, 5, 0,
+                                   0, 5, 6,
+                                   6, 1, 0,
+                                   6, 7, 2,
+                                   2, 1, 6,
+                                   7, 4, 3,
+                                   3, 2, 7,
+                                   5, 4, 7,
+                                   7, 6, 5,
+                                   2, 3, 1,
+                                   3, 0, 1 };
+
+    /* Do our drawing, too. */
+    glClearColor(0.0, 0.0, 0.0, 1.0);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    /* Draw the cube */
+    glColorPointer(4, GL_UNSIGNED_BYTE, 0, color);
+    glEnableClientState(GL_COLOR_ARRAY);
+    glVertexPointer(3, GL_FLOAT, 0, cube);
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_BYTE, indices);
+
+    glMatrixMode(GL_MODELVIEW);
+    glRotatef(5.0, 1.0, 1.0, 1.0);
+}
+
+int main(int argc, char *argv[])
+{
+    int fsaa, accel;
+    int value;
+    int i, done;
+    const SDL_DisplayMode *mode;
+    SDL_Event event;
+    Uint32 then, now, frames;
+
+    /* Initialize parameters */
+    fsaa = 0;
+    accel = 0;
+
+    /* 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) {
+            if (SDL_strcasecmp(argv[i], "--fsaa") == 0) {
+                ++fsaa;
+                consumed = 1;
+            } else if (SDL_strcasecmp(argv[i], "--accel") == 0) {
+                ++accel;
+                consumed = 1;
+            } else if (SDL_strcasecmp(argv[i], "--zdepth") == 0) {
+                i++;
+                if (!argv[i]) {
+                    consumed = -1;
+                } else {
+                    char *endptr = NULL;
+                    depth = (int)SDL_strtol(argv[i], &endptr, 0);
+                    if (endptr != argv[i] && *endptr == '\0') {
+                        consumed = 1;
+                    } else {
+                        consumed = -1;
+                    }
+                }
+            } else {
+                consumed = -1;
+            }
+        }
+        if (consumed < 0) {
+            static const char *options[] = { "[--fsaa]", "[--accel]", "[--zdepth %d]", NULL };
+            SDLTest_CommonLogUsage(state, argv[0], options);
+            quit(1);
+        }
+        i += consumed;
+    }
+
+    /* Set OpenGL parameters */
+    state->window_flags |= SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_BORDERLESS;
+    state->gl_red_size = 5;
+    state->gl_green_size = 5;
+    state->gl_blue_size = 5;
+    state->gl_depth_size = depth;
+    state->gl_major_version = 1;
+    state->gl_minor_version = 1;
+    state->gl_profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
+    if (fsaa) {
+        state->gl_multisamplebuffers = 1;
+        state->gl_multisamplesamples = fsaa;
+    }
+    if (accel) {
+        state->gl_accelerated = 1;
+    }
+    if (!SDLTest_CommonInit(state)) {
+        quit(2);
+    }
+
+    context = (SDL_GLContext *)SDL_calloc(state->num_windows, sizeof(*context));
+    if (!context) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory!");
+        quit(2);
+    }
+
+    /* Create OpenGL ES contexts */
+    for (i = 0; i < state->num_windows; i++) {
+        context[i] = SDL_GL_CreateContext(state->windows[i]);
+        if (!context[i]) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_GL_CreateContext(): %s", SDL_GetError());
+            quit(2);
+        }
+    }
+
+    SDL_GL_SetSwapInterval(state->render_vsync);
+
+    mode = SDL_GetCurrentDisplayMode(SDL_GetPrimaryDisplay());
+    if (mode) {
+        SDL_Log("Screen bpp: %d", SDL_BITSPERPIXEL(mode->format));
+        SDL_Log("%s", "");
+    }
+    SDL_Log("Vendor     : %s", glGetString(GL_VENDOR));
+    SDL_Log("Renderer   : %s", glGetString(GL_RENDERER));
+    SDL_Log("Version    : %s", glGetString(GL_VERSION));
+    SDL_Log("Extensions : %s", glGetString(GL_EXTENSIONS));
+    SDL_Log("%s", "");
+
+    if (SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value)) {
+        SDL_Log("SDL_GL_RED_SIZE: requested %d, got %d", 5, value);
+    } else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_RED_SIZE: %s",
+                     SDL_GetError());
+    }
+    if (SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value)) {
+        SDL_Log("SDL_GL_GREEN_SIZE: requested %d, got %d", 5, value);
+    } else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_GREEN_SIZE: %s",
+                     SDL_GetError());
+    }
+    if (SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value)) {
+        SDL_Log("SDL_GL_BLUE_SIZE: requested %d, got %d", 5, value);
+    } else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_BLUE_SIZE: %s",
+                     SDL_GetError());
+    }
+    if (SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value)) {
+        SDL_Log("SDL_GL_DEPTH_SIZE: requested %d, got %d", depth, value);
+    } else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_DEPTH_SIZE: %s",
+                     SDL_GetError());
+    }
+    if (fsaa) {
+        if (SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value)) {
+            SDL_Log("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d", value);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_MULTISAMPLEBUFFERS: %s",
+                         SDL_GetError());
+        }
+        if (SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value)) {
+            SDL_Log("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d", fsaa,
+                    value);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_MULTISAMPLESAMPLES: %s",
+                         SDL_GetError());
+        }
+    }
+    if (accel) {
+        if (SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value)) {
+            SDL_Log("SDL_GL_ACCELERATED_VISUAL: requested 1, got %d", value);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_ACCELERATED_VISUAL: %s",
+                         SDL_GetError());
+        }
+    }
+
+    /* Set rendering settings for each context */
+    for (i = 0; i < state->num_windows; ++i) {
+        float aspectAdjust;
+
+        if (!SDL_GL_MakeCurrent(state->windows[i], context[i])) {
+            SDL_Log("SDL_GL_MakeCurrent(): %s", SDL_GetError());
+
+            /* Continue for next window */
+            continue;
+        }
+
+        aspectAdjust = (4.0f / 3.0f) / ((float)state->window_w / state->window_h);
+        glViewport(0, 0, state->window_w, state->window_h);
+        glMatrixMode(GL_PROJECTION);
+        glLoadIdentity();
+        glOrthof(-2.0, 2.0, -2.0 * aspectAdjust, 2.0 * aspectAdjust, -20.0, 20.0);
+        glMatrixMode(GL_MODELVIEW);
+        glLoadIdentity();
+        glEnable(GL_DEPTH_TEST);
+        glDepthFunc(GL_LESS);
+        glShadeModel(GL_SMOOTH);
+    }
+
+    /* Main render loop */
+    frames = 0;
+    then = SDL_GetTicks();
+    done = 0;
+    while (!done) {
+        /* Check for events */
+        ++frames;
+        while (SDL_PollEvent(&event)) {
+            if (event.type == SDL_EVENT_WINDOW_RESIZED) {
+                for (i = 0; i < state->num_windows; ++i) {
+                    if (event.window.windowID == SDL_GetWindowID(state->windows[i])) {
+                        if (!SDL_GL_MakeCurrent(state->windows[i], context[i])) {
+                            SDL_Log("SDL_GL_MakeCurrent(): %s", SDL_GetError());
+                            break;
+                        }
+                        /* Change view port to the new window dimensions */
+                        glViewport(0, 0, event.window.data1, event.window.data2);
+                        /* Update window content */
+                        Render();
+                        SDL_GL_SwapWindow(state->windows[i]);
+                        break;
+                    }
+                }
+            }
+            SDLTest_CommonEvent(state, &event, &done);
+        }
+        for (i = 0; i < state->num_windows; ++i) {
+            if (state->windows[i] == NULL) {
+                continue;
+            }
+            if (!SDL_GL_MakeCurrent(state->windows[i], context[i])) {
+                SDL_Log("SDL_GL_MakeCurrent(): %s", SDL_GetError());
+
+                /* Continue for next window */
+                continue;
+            }
+            Render();
+            SDL_GL_SwapWindow(state->windows[i]);
+        }
+    }
+
+    /* Print out some timing information */
+    now = SDL_GetTicks();
+    if (now > then) {
+        SDL_Log("%2.2f frames per second",
+                ((double)frames * 1000) / (now - then));
+    }
+#ifndef SDL_PLATFORM_ANDROID
+    quit(0);
+#endif
+    return 0;
+}
+
+#else /* HAVE_OPENGLES */
+
+int main(int argc, char *argv[])
+{
+    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "No OpenGL ES support on this system");
+    return 1;
+}
+
+#endif /* HAVE_OPENGLES */