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Native activity now draws!

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Very simple and dumb, but we now get touch events and fill the
window with a color (using OpenGL) based on its location.

Change-Id: I6657d2bb013570238bc0fe639f33c59f1ab68872
This commit is contained in:
Dianne Hackborn
2010-07-01 18:47:16 -07:00
parent 88510488e9
commit 2b352d76d8
11 changed files with 1020 additions and 23 deletions
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117
ndk/samples/native-activity/jni/glutils.c Normal file
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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "glutils.h"
const char *EGLstrerror(EGLint err) {
switch (err) {
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
int32_t selectConfigForPixelFormat(EGLDisplay dpy, EGLint const* attrs,
int32_t format, EGLConfig* outConfig) {
EGLint numConfigs = -1, n=0;
if (!attrs)
return -1;
if (outConfig == NULL)
return -1;
int fbSzA, fbSzR, fbSzG, fbSzB;
switch (format) {
case WINDOW_FORMAT_RGBA_8888:
fbSzA = fbSzR = fbSzG = fbSzB = 8;
break;
case WINDOW_FORMAT_RGBX_8888:
fbSzA = 0; fbSzR = fbSzG = fbSzB = 8;
break;
case WINDOW_FORMAT_RGB_565:
fbSzA = 0; fbSzR = 5; fbSzG = 6; fbSzB = 5;
break;
default:
LOGW("Unknown format");
return -1;
}
// Get all the "potential match" configs...
if (eglGetConfigs(dpy, NULL, 0, &numConfigs) == EGL_FALSE) {
LOGW("eglGetConfigs failed");
return -1;
}
EGLConfig* const configs = (EGLConfig*)malloc(sizeof(EGLConfig)*numConfigs);
if (eglChooseConfig(dpy, attrs, configs, numConfigs, &n) == EGL_FALSE) {
free(configs);
LOGW("eglChooseConfig failed");
return -1;
}
int i;
EGLConfig config = NULL;
for (i=0 ; i<n ; i++) {
EGLint r,g,b,a;
EGLConfig curr = configs[i];
eglGetConfigAttrib(dpy, curr, EGL_RED_SIZE, &r);
eglGetConfigAttrib(dpy, curr, EGL_GREEN_SIZE, &g);
eglGetConfigAttrib(dpy, curr, EGL_BLUE_SIZE, &b);
eglGetConfigAttrib(dpy, curr, EGL_ALPHA_SIZE, &a);
if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB == b) {
config = curr;
break;
}
}
free(configs);
if (i<n) {
*outConfig = config;
return 0;
}
LOGW("No config with desired pixel format");
return -1;
}
int32_t selectConfigForNativeWindow(EGLDisplay dpy, EGLint const* attrs,
EGLNativeWindowType window, EGLConfig* outConfig) {
int err;
int format;
if (!window)
return -1;
return selectConfigForPixelFormat(dpy, attrs,
ANativeWindow_getFormat(window), outConfig);
}