1 files changed, 130 insertions, 0 deletions
diff --git a/opengl/tests/filter/filter.c b/opengl/tests/filter/filter.c
new file mode 100644
index 0000000..de97119
--- /dev/null
+++ b/opengl/tests/filter/filter.c
@@ -0,0 +1,130 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <EGL/egl.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+
+int main(int argc, char** argv)
+{
+    if (argc!=2 && argc!=3) {
+        printf("usage: %s <0-6> [pbuffer]\n", argv[0]);
+        return 0;
+    }
+    
+    const int test = atoi(argv[1]);
+    int usePbuffer = argc==3 && !strcmp(argv[2], "pbuffer");
+    EGLint s_configAttribs[] = {
+         EGL_SURFACE_TYPE, EGL_PBUFFER_BIT|EGL_WINDOW_BIT,
+         EGL_RED_SIZE,       5,
+         EGL_GREEN_SIZE,     6,
+         EGL_BLUE_SIZE,      5,
+         EGL_NONE
+     };
+     
+     EGLint numConfigs = -1;
+     EGLint majorVersion;
+     EGLint minorVersion;
+     EGLConfig config;
+     EGLContext context;
+     EGLSurface surface;
+     EGLint w, h;
+     
+     EGLDisplay dpy;
+
+     dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+     eglInitialize(dpy, &majorVersion, &minorVersion);
+     eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
+     if (!usePbuffer) {
+         surface = eglCreateWindowSurface(dpy, config,
+                 android_createDisplaySurface(), NULL);
+     } else {
+         printf("using pbuffer\n");
+         EGLint attribs[] = { EGL_WIDTH, 320, EGL_HEIGHT, 480, EGL_NONE };
+         surface = eglCreatePbufferSurface(dpy, config, attribs);
+         if (surface == EGL_NO_SURFACE) {
+             printf("eglCreatePbufferSurface error %x\n", eglGetError());
+         }
+     }
+     context = eglCreateContext(dpy, config, NULL, NULL);
+     eglMakeCurrent(dpy, surface, surface, context);   
+     eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
+     eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
+     GLint dim = w<h ? w : h;
+
+     glClear(GL_COLOR_BUFFER_BIT);
+
+     GLint crop[4] = { 0, 4, 4, -4 };
+     glBindTexture(GL_TEXTURE_2D, 0);
+     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
+     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+     glEnable(GL_TEXTURE_2D);
+     glColor4f(1,1,1,1);
+
+     // packing is always 4
+     uint8_t t8[]  = { 
+             0x00, 0x55, 0x00, 0x55, 
+             0xAA, 0xFF, 0xAA, 0xFF,
+             0x00, 0x55, 0x00, 0x55, 
+             0xAA, 0xFF, 0xAA, 0xFF  };
+
+     uint16_t t16[]  = { 
+             0x0000, 0x5555, 0x0000, 0x5555, 
+             0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF,
+             0x0000, 0x5555, 0x0000, 0x5555, 
+             0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF  };
+
+     uint16_t t5551[]  = { 
+             0x0000, 0xFFFF, 0x0000, 0xFFFF, 
+             0xFFFF, 0x0000, 0xFFFF, 0x0000,
+             0x0000, 0xFFFF, 0x0000, 0xFFFF, 
+             0xFFFF, 0x0000, 0xFFFF, 0x0000  };
+
+     uint32_t t32[]  = { 
+             0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 
+             0xFF00FF00, 0xFFFF0000, 0xFF000000, 0xFF0000FF, 
+             0xFF00FFFF, 0xFF00FF00, 0x00FF00FF, 0xFFFFFF00, 
+             0xFF000000, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF
+     };
+
+     switch(test) 
+     {
+     case 1:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE,
+                 4, 4, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, t8);
+         break;
+     case 2:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
+                 4, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16);
+         break;
+     case 3:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+                 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t16);
+         break;
+     case 4:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
+                 4, 4, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, t16);
+         break;
+     case 5:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+                 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, t5551);
+         break;
+     case 6:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+                 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, t32);
+         break;
+     }
+
+     glDrawTexiOES(0, 0, 0, dim, dim);
+
+     if (!usePbuffer) {
+         eglSwapBuffers(dpy, surface);
+     } else {
+         glFinish();
+     }
+     
+     eglTerminate(dpy);
+     return 0;
+}