--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/testgles.c Sat Oct 04 06:46:59 2008 +0000
@@ -0,0 +1,232 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include "common.h"
+
+#ifdef __IPHONEOS__
+#define HAVE_OPENGLES
+#endif
+
+#ifdef HAVE_OPENGLES
+
+#include "SDL_opengles.h"
+
+static CommonState *state;
+static SDL_GLContext context;
+
+/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
+static void
+quit(int rc)
+{
+ if (context) {
+ /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */
+ SDL_GL_DeleteContext(context);
+ }
+ CommonQuit(state);
+ exit(rc);
+}
+
+static void
+Render()
+{
+ 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;
+ SDL_DisplayMode mode;
+ SDL_Event event;
+ Uint32 then, now, frames;
+
+ /* Initialize parameters */
+ fsaa = 0;
+ accel = 0;
+
+ /* Initialize test framework */
+ state = CommonCreateState(argv, SDL_INIT_VIDEO);
+ if (!state) {
+ return 1;
+ }
+ for (i = 1; i < argc;) {
+ int consumed;
+
+ consumed = 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 {
+ consumed = -1;
+ }
+ }
+ if (consumed < 0) {
+ fprintf(stderr, "Usage: %s %s [--fsaa] [--accel]\n", argv[0],
+ CommonUsage(state));
+ quit(1);
+ }
+ i += consumed;
+ }
+
+ /* Set OpenGL parameters */
+ state->window_flags |= SDL_WINDOW_OPENGL;
+ SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
+ SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
+ if (fsaa) {
+ SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
+ SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, fsaa);
+ }
+ if (accel) {
+ SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
+ }
+ if (!CommonInit(state)) {
+ quit(2);
+ }
+
+ /* Create OpenGL context */
+ context = SDL_GL_CreateContext(state->windows[0]);
+ if (!context) {
+ fprintf(stderr, "SDL_GL_CreateContext(): %s\n", SDL_GetError());
+ quit(2);
+ }
+
+ if (state->render_flags & SDL_RENDERER_PRESENTVSYNC) {
+ SDL_GL_SetSwapInterval(1);
+ } else {
+ SDL_GL_SetSwapInterval(0);
+ }
+
+ SDL_GetCurrentDisplayMode(&mode);
+ printf("Screen BPP: %d\n", SDL_BITSPERPIXEL(mode.format));
+ printf("\n");
+ printf("Vendor : %s\n", glGetString(GL_VENDOR));
+ printf("Renderer : %s\n", glGetString(GL_RENDERER));
+ printf("Version : %s\n", glGetString(GL_VERSION));
+ printf("Extensions : %s\n", glGetString(GL_EXTENSIONS));
+ printf("\n");
+
+ SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value);
+ printf("SDL_GL_RED_SIZE: requested %d, got %d\n", 5, value);
+ SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value);
+ printf("SDL_GL_GREEN_SIZE: requested %d, got %d\n", 5, value);
+ SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value);
+ printf("SDL_GL_BLUE_SIZE: requested %d, got %d\n", 5, value);
+ SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value);
+ printf("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", 16, value);
+ if (fsaa) {
+ SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value);
+ printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
+ SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value);
+ printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
+ value);
+ }
+ if (accel) {
+ SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value);
+ printf("SDL_GL_ACCELERATED_VISUAL: requested 1, got %d\n", value);
+ }
+
+ /* Set rendering settings */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrthof(-2.0, 2.0, -2.0, 2.0, -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)) {
+ CommonEvent(state, &event, &done);
+ }
+ for (i = 0; i < state->num_windows; ++i) {
+ int w, h;
+ SDL_GL_MakeCurrent(state->windows[i], context);
+ SDL_GetWindowSize(state->windows[i], &w, &h);
+ glViewport(0, 0, w, h);
+ Render();
+ SDL_GL_SwapWindow(state->windows[i]);
+ }
+ }
+
+ /* Print out some timing information */
+ now = SDL_GetTicks();
+ if (now > then) {
+ printf("%2.2f frames per second\n",
+ ((double) frames * 1000) / (now - then));
+ }
+ quit(0);
+ return 0;
+}
+
+#else /* HAVE_OPENGLES */
+
+int
+main(int argc, char *argv[])
+{
+ printf("No OpenGL ES support on this system\n");
+ return 1;
+}
+
+#endif /* HAVE_OPENGLES */