X-Git-Url: http://git.maemo.org/git/?p=sdlhildon;a=blobdiff_plain;f=sdlgles%2Ftest%2Fattrib.c;fp=sdlgles%2Ftest%2Fattrib.c;h=6e6a8a5e3a77e62f4718fe6fd4a0b137534fbb26;hp=0000000000000000000000000000000000000000;hb=159b4b8f866841e0bf33ec22be65a5bc56eb1cd3;hpb=cf7c42212cbb8edeb252cdeb4345753fceeaae10

diff --git a/sdlgles/test/attrib.c b/sdlgles/test/attrib.c
new file mode 100644
index 0000000..6e6a8a5
--- /dev/null
+++ b/sdlgles/test/attrib.c
@@ -0,0 +1,142 @@
+/* gles1 - a simple SDL_gles OpenGL|ES 1.1 sample
+ *
+ * This file is in the public domain, furnished "as is", without technical
+ * support, and with no warranty, express or implied, as to its usefulness for
+ * any purpose.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include <SDL.h>
+#include <SDL_gles.h>
+
+#include <GLES/gl.h>
+
+static SDL_Surface *screen;
+static SDL_GLES_Context *context;
+
+static bool fullscreen = false;
+
+static const float vertices[] ={-0.6f, -0.6f, -0.5f, /* Square 1 */
+								 0.3f, -0.6f, -0.5f,
+						 		-0.6f,  0.8f,  0.1f,
+								 0.3f,  0.8f,  0.1f,
+								 0.3f,  0.8f,  0.1f, /* Degenerate vertices */
+								-0.3f, -0.6f,  0.5f,
+								-0.3f, -0.6f,  0.5f, /* Square 2 */
+								 0.6f, -0.6f,  0.5f,
+						 		-0.3f,  0.8f, -0.1f,
+								 0.6f,  0.8f, -0.1f,
+								};
+static const float colors[] =  { 1.0f,  0.0f,  0.0f, 1.0f,
+								 1.0f,  0.0f,  0.0f, 1.0f,
+						 		 1.0f,  0.0f,  0.0f, 1.0f,
+								 1.0f,  0.0f,  0.0f, 1.0f,
+								 0.0f,  0.0f,  0.0f, 1.0f,
+								 0.0f,  0.0f,  1.0f, 1.0f,
+								 0.0f,  0.0f,  1.0f, 1.0f,
+								 0.0f,  0.0f,  1.0f, 1.0f,
+						 		 0.0f,  0.0f,  1.0f, 1.0f,
+								 0.0f,  0.0f,  1.0f, 1.0f,
+								};
+
+static void draw()
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glDrawArrays(GL_TRIANGLE_STRIP, 0, 10);
+	SDL_GLES_SwapBuffers();
+}
+
+static void toggle_fullscreen()
+{
+	int res;
+
+	fullscreen = !fullscreen;
+
+	screen = SDL_SetVideoMode(0, 0, 16, SDL_SWSURFACE |
+		(fullscreen ? SDL_FULLSCREEN : 0));
+	assert(screen);
+
+	res = SDL_GLES_SetVideoMode();
+	assert(res == 0);
+
+	draw();
+}
+
+int main()
+{
+	int res, value = 0;
+	res = SDL_Init(SDL_INIT_VIDEO);
+	assert(res == 0);
+
+	res = SDL_GLES_Init(SDL_GLES_VERSION_1_1);
+	assert(res == 0);
+
+	screen = SDL_SetVideoMode(0, 0, 16, SDL_SWSURFACE);
+	assert(screen);
+
+	SDL_WM_SetCaption("SDLgles attrib test", "SDLgles v1 test");
+	SDL_ShowCursor(SDL_DISABLE);
+
+#define ENABLE_DEPTH_BUFFER 1
+
+#ifdef ENABLE_DEPTH_BUFFER
+	/* With a depth buffer, the red square will be partially over the blue sq. */
+	res = SDL_GLES_SetAttribute(SDL_GLES_DEPTH_SIZE, 4);
+	assert(res == 0);
+
+	res = SDL_GLES_GetAttribute(SDL_GLES_DEPTH_SIZE, &value);
+	assert(res == 0);
+	assert(value == 4);
+	printf("Wanted depth buffer size is %d\n", value);
+#else
+	/* Without a depth buffer, the blue square will be over the red square. */
+	printf("Wanted depth buffer size is %d\n", 0);
+#endif
+
+	context = SDL_GLES_CreateContext();
+	assert(context);
+
+	res = SDL_GLES_MakeCurrent(context);
+	assert(res == 0);
+
+	value = 0;
+	res = SDL_GLES_GetAttribute(SDL_GLES_DEPTH_SIZE, &value);
+	assert(res == 0);
+	printf("Depth buffer size is %d\n", value);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+
+	glEnable(GL_DEPTH_TEST);
+	glClearColor(0.0f, 0.2f, 0.0f, 0.0f);
+	glEnableClientState(GL_VERTEX_ARRAY);
+	glEnableClientState(GL_COLOR_ARRAY);
+	glVertexPointer(3, GL_FLOAT, 0, vertices);
+	glColorPointer(4, GL_FLOAT, 0, colors);
+
+	draw();
+
+	SDL_Event event;
+	while (SDL_WaitEvent(&event)) {
+		switch (event.type) {
+			case SDL_QUIT:
+				goto quit;
+			case SDL_MOUSEBUTTONDOWN:
+				toggle_fullscreen();
+				break;
+		}
+	}
+
+quit:
+	SDL_GLES_DeleteContext(context);
+
+	SDL_GLES_Quit();
+	SDL_Quit();
+
+	return 0;
+}
+