OpenGLES 1.1帧缓冲/ ColorBuffer /深度缓存为Android NDK与R7B [英] OpenGLES 1.1 with FrameBuffer / ColorBuffer / DepthBuffer for Android with NDK r7b
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问题描述
阅读过NDK文档和我所有的书上OpenGLES后IVE碰了壁。我想复制我的iOS设置到Android NDK R7 OpenGLES以上，主要是为了获取深度缓冲区我前面忽略编码时。
问题是我失去了一些物体的纹理时启用颜色缓冲区，如下图所示，当我发送对象为背景的深度缓冲不工作。
我使用OGLES 1.1 FFP和NDK R7或以上。
下面是我的初始code： -
int32_t ES1Renderer :: initRenderer（）{ EGLint lFormat，lNumConfigs，lErrorResult;
EGLConfig lConfig; 常量EGLint lAttributes [] = {
EGL_RENDERABLE_TYPE，EGL_OPENGL_ES_BIT，
EGL_BLUE_SIZE，5，EGL_GREEN_SIZE，6，EGL_RED_SIZE，5，
EGL_SURFACE_TYPE，EGL_WINDOW_BIT，
EGL_NONE
}; 填充mDisplay = eglGetDisplay（EGL_DEFAULT_DISPLAY）;
如果（填充mDisplay == EGL_NO_DISPLAY）转到错误;
如果转到错误（eglInitialize（填充mDisplay，NULL，NULL）！）; 如果（eglChooseConfig（填充mDisplay，lAttributes，＆安培;！lConfig，1，
＆安培; lNumConfigs）|| （lNumConfigs＆LT; = 0））转到错误; 如果（！eglGetConfigAttrib（填充mDisplay，lConfig，
EGL_NATIVE_VISUAL_ID，＆安培; lFormat））转到错误;
ANativeWindow_setBuffersGeometry（mApplication-＆GT;窗口，0，0，
lFormat）;
mSurface = eglCreateWindowSurface（填充mDisplay，lConfig，
mApplication-＆GT;窗口，NULL）;
如果（mSurface == EGL_NO_SURFACE）转到错误;
mContext = eglCreateContext（填充mDisplay，lConfig，EGL_NO_CONTEXT，
空值）;
如果（mContext == EGL_NO_CONTEXT）转到错误;
如果（！eglMakeCurrent（填充mDisplay，mSurface，mSurface，mContext）
|| ！eglQuerySurface（填充mDisplay，mSurface，EGL_WIDTH，＆安培; mWidth）
|| ！eglQuerySurface（填充mDisplay，mSurface，EGL_HEIGHT，＆安培; mHeight）
|| （mWidth＆下; = 0）|| （mHeight＆LT; = 0））转到错误; //获取默认的帧缓冲，并将其绑定
glBindFramebufferOES（GL_FRAMEBUFFER_OES，0）; glGenRenderbuffersOES（1，＆安培; colorRenderbuffer）;
glBindRenderbufferOES（GL_RENDERBUFFER_OES，colorRenderbuffer）;
glFramebufferRenderbufferOES（GL_FRAMEBUFFER_OES，GL_COLOR_ATTACHMENT0_OES，GL_RENDERBUFFER_OES，colorRenderbuffer）; glGetRenderbufferParameterivOES（GL_RENDERBUFFER_OES，GL_RENDERBUFFER_WIDTH_OES，＆安培; mWidth）;
glGetRenderbufferParameterivOES（GL_RENDERBUFFER_OES，GL_RENDERBUFFER_HEIGHT_OES，＆安培; mHeight）; glGenRenderbuffersOES（1，＆安培; depthRenderbuffer）;
glBindRenderbufferOES（GL_RENDERBUFFER_OES，depthRenderbuffer）;
glRenderbufferStorageOES（GL_RENDERBUFFER_OES，GL_DEPTH_COMPONENT16_OES，mWidth，mHeight）;
glFramebufferRenderbufferOES（GL_FRAMEBUFFER_OES，GL_DEPTH_ATTACHMENT_OES，GL_RENDERBUFFER_OES，depthRenderbuffer）;
{
常量GLfloat matAmbient [] = {1.0，1.0，1.0，1.0};
常量GLfloat matDiffuse [] = {1.0，1.0，1.0，1.0};
常量GLfloat lightShininess = 20.0; 过glEnable（GL_COLOR_MATERIAL）;
glMaterialfv（GL_FRONT_AND_BACK，GL_AMBIENT，matAmbient）;
glMaterialfv（GL_FRONT_AND_BACK，GL_DIFFUSE，matDiffuse）;
glMaterialf（GL_FRONT_AND_BACK，GL_SHININESS，lightShininess）;
} glViewport（0，0，mWidth，mHeight）; 过glEnable（GL_DEPTH_TEST）;
glDepthFunc（GL_LEQUAL）;
glDepthMask（GL_TRUE）; 过glEnable（GL_CULL_FACE）;
glShadeModel（GL_SMOOTH）; glHint（GL_PERSPECTIVE_CORRECTION_HINT，GL_NICEST）;
glHint（GL_GENERATE_MIPMAP_HINT，GL_NICEST）;
glHint（GL_LINE_SMOOTH_HINT，GL_NICEST）;
glHint（GL_POINT_SMOOTH_HINT，GL_NICEST）;
glHint（GL_FOG_HINT，GL_NICEST）; glClearColor（0.0，0.0，0.0，1.0F）; glMatrixMode（GL_PROJECTION）; glOrthof（-1.0，// LEFT
1.0，// RIGHT
-1.0 * mHeight / mWidth，// BOTTOM
1.0 * mHeight / mWidth，// TOP
-2.0，// NEAR
100.0）; //远 glMatrixMode（GL_MODELVIEW）;
}
下面是我的渲染code：
int32_t ES1Renderer ::渲染（）{ glClear（GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT）; / *
渲染GOES HERE的移除。例如
* / glBindRenderbufferOES（GL_RENDERBUFFER_OES，colorRenderbuffer）; 如果（eglSwapBuffers（填充mDisplay，mSurface）！= EGL_TRUE）{
返回0;
} 返回1;
}
解决方案
从西尔Ratabouil指针（看看他的书和页面，如果你想加快速度上NDK7）在OGLES Android上NDK设置后单击确定7.我不需要根和绑定缓冲与设置EGL表面时，它们会自动处理。他建议增加这样的： -
EGL_DEPTH_SIZE，16，EGL_SURFACE_TYPE，EGL_WINDOW_BIT，
到
常量EGLint lAttributes [] = {EGL_RENDERABLE_TYPE，EGL_OPENGL_ES_BIT，
EGL_BLUE_SIZE，5，EGL_GREEN_SIZE，6，EGL_RED_SIZE，5，
EGL_DEPTH_SIZE，16，EGL_SURFACE_TYPE，EGL_WINDOW_BIT，
EGL_SURFACE_TYPE，EGL_WINDOW_BIT，EGL_NONE};
这是我的固定深度缓存，注意检查EGL状态，确保它是支持的。下面是我用完整的设置实现： -
int32_t ES1Renderer :: initialiseRenderer（）{ EGLint lFormat，lNumConfigs，lErrorResult;
EGLConfig lConfig; 常量EGLint lAttributes [] = {EGL_RENDERABLE_TYPE，EGL_OPENGL_ES_BIT，
EGL_BLUE_SIZE，5，EGL_GREEN_SIZE，6，EGL_RED_SIZE，5，
EGL_DEPTH_SIZE，16，EGL_SURFACE_TYPE，EGL_WINDOW_BIT，
EGL_SURFACE_TYPE，EGL_WINDOW_BIT，EGL_NONE}; 填充mDisplay = eglGetDisplay（EGL_DEFAULT_DISPLAY）;
如果（填充mDisplay == EGL_NO_DISPLAY）
转到错误;
如果（！eglInitialize（填充mDisplay，NULL，NULL））
转到错误; 如果（eglChooseConfig（填充mDisplay，lAttributes，＆安培;！lConfig，1，＆安培; lNumConfigs）
|| （lNumConfigs＆下; = 0））
转到错误; 如果（eglGetConfigAttrib（填充mDisplay，lConfig，EGL_NATIVE_VISUAL_ID，＆安培;！lFormat））
转到错误;
ANativeWindow_setBuffersGeometry（mApplication-＆GT;窗口，0，0，lFormat）; mSurface = eglCreateWindowSurface（填充mDisplay，lConfig，mApplication-＆GT;窗口，
空值）;
如果（mSurface == EGL_NO_SURFACE）
转到错误;
mContext = eglCreateContext（填充mDisplay，lConfig，EGL_NO_CONTEXT，NULL）;
如果（mContext == EGL_NO_CONTEXT）
转到错误; 如果（！eglMakeCurrent（填充mDisplay，mSurface，mSurface，mContext）
|| ！eglQuerySurface（填充mDisplay，mSurface，EGL_WIDTH，＆安培; mWidth）
|| ！eglQuerySurface（填充mDisplay，mSurface，EGL_HEIGHT，＆安培; mHeight）
|| （mWidth＆下; = 0）|| （mHeight＆下; = 0））
转到错误;{
常量GLfloat matAmbient [] = {1.0，1.0，1.0，1.0};
常量GLfloat matDiffuse [] = {1.0，1.0，1.0，1.0};
常量GLfloat lightShininess = 20.0; 过glEnable（GL_COLOR_MATERIAL）;
glMaterialfv（GL_FRONT_AND_BACK，GL_AMBIENT，matAmbient）;
glMaterialfv（GL_FRONT_AND_BACK，GL_DIFFUSE，matDiffuse）;
glMaterialf（GL_FRONT_AND_BACK，GL_SHININESS，lightShininess）;
}glLoadIdentity（）;#IFDEF ORTHOGANAL_PROJECTIONglViewport（0，0，mWidth，mHeight）;
＃万一 过glEnable（GL_DEPTH_TEST）;
glDepthFunc（GL_LEQUAL）;
glDepthMask（GL_TRUE）; 过glEnable（GL_CULL_FACE）;
// glShadeModel（GL_SMOOTH）; glHint（GL_PERSPECTIVE_CORRECTION_HINT，GL_NICEST）;
glHint（GL_GENERATE_MIPMAP_HINT，GL_NICEST）;
glHint（GL_LINE_SMOOTH_HINT，GL_NICEST）;
glHint（GL_POINT_SMOOTH_HINT，GL_NICEST）;
glHint（GL_FOG_HINT，GL_NICEST）; glClearColor（0.0，0.0，0.0，1.0F）; glMatrixMode（GL_PROJECTION）; 过glEnable（GL_NORMALIZE）;
过glEnable（GL_DEPTH_TEST）;
glDisable（GL_CULL_FACE）;
// glShadeModel（GL_FLAT）; #IFDEF ORTHOGANAL_PROJECTIONglOrthof（-1.0，// LEFT
1.0，// RIGHT
-1.0 * mHeight / mWidth，// BOTTOM
1.0 * mHeight / mWidth，// TOP
-2.0，// NEAR
100.0）; //远
＃其他{
GLfloat mWidthf = mWidth;
GLfloat mHeightf = mHeight; 常量GLfloat zNear = 0.1;
常量GLfloat zFar = 1000.0;
常量GLfloat fieldOfView（视野）= 60.0; GLfloat大小= zNear * TANF（DEGREES_TO_RADIANS（fieldOfView（视野））/ 2.0）; glFrustumf（-size，大小，-size /（mWidthf / mHeightf），
大小/（mWidthf / mHeightf），zNear，zFar）; glViewport（0，0，mWidthf，mHeightf）;
}
＃万一 glMatrixMode（GL_MODELVIEW）;
}
渲染code保持与上述相同。
After reading over the NDK docs and all my books on OpenGLES ive hit a wall. I am trying to copy my iOS OpenGLES set up to Android NDK R7 and above, mainly to get the depth buffer i overlooked earlier on when coding.
The problem is i loose the textures on some objects when i enable the color buffer as seen below and the depth buffer isn't working when i send objects into the background.
I am using OGLES 1.1 FFP and NDK R7 or above
Here is my initialization code :-
int32_t ES1Renderer::initRenderer() {
EGLint lFormat, lNumConfigs, lErrorResult;
EGLConfig lConfig;
const EGLint lAttributes[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
EGL_BLUE_SIZE, 5, EGL_GREEN_SIZE, 6, EGL_RED_SIZE, 5,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (mDisplay == EGL_NO_DISPLAY) goto ERROR;
if (!eglInitialize(mDisplay, NULL, NULL)) goto ERROR;
if(!eglChooseConfig(mDisplay, lAttributes, &lConfig, 1,
&lNumConfigs) || (lNumConfigs <= 0)) goto ERROR;
if (!eglGetConfigAttrib(mDisplay, lConfig,
EGL_NATIVE_VISUAL_ID, &lFormat)) goto ERROR;
ANativeWindow_setBuffersGeometry(mApplication->window, 0, 0,
lFormat);
mSurface = eglCreateWindowSurface(mDisplay, lConfig,
mApplication->window, NULL);
if (mSurface == EGL_NO_SURFACE) goto ERROR;
mContext = eglCreateContext(mDisplay, lConfig, EGL_NO_CONTEXT,
NULL);
if (mContext == EGL_NO_CONTEXT) goto ERROR;
if (!eglMakeCurrent(mDisplay, mSurface, mSurface, mContext)
|| !eglQuerySurface(mDisplay, mSurface, EGL_WIDTH, &mWidth)
|| !eglQuerySurface(mDisplay, mSurface, EGL_HEIGHT, &mHeight)
|| (mWidth <= 0) || (mHeight <= 0)) goto ERROR;
//Get the default FrameBuffer and bind it
glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
glGenRenderbuffersOES(1, &colorRenderbuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, colorRenderbuffer);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, colorRenderbuffer);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &mWidth);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &mHeight);
glGenRenderbuffersOES(1, &depthRenderbuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, mWidth, mHeight);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
{
const GLfloat matAmbient[] = {1.0, 1.0, 1.0, 1.0};
const GLfloat matDiffuse[] = {1.0, 1.0, 1.0, 1.0};
const GLfloat lightShininess = 20.0;
glEnable(GL_COLOR_MATERIAL);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, matAmbient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiffuse);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, lightShininess);
}
glViewport( 0, 0, mWidth, mHeight );
glEnable ( GL_DEPTH_TEST );
glDepthFunc( GL_LEQUAL );
glDepthMask( GL_TRUE );
glEnable ( GL_CULL_FACE );
glShadeModel( GL_SMOOTH );
glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );
glHint( GL_GENERATE_MIPMAP_HINT , GL_NICEST );
glHint( GL_LINE_SMOOTH_HINT , GL_NICEST );
glHint( GL_POINT_SMOOTH_HINT , GL_NICEST );
glHint( GL_FOG_HINT , GL_NICEST );
glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
glMatrixMode(GL_PROJECTION);
glOrthof(-1.0, //LEFT
1.0, //RIGHT
-1.0 * mHeight / mWidth, //BOTTOM
1.0 * mHeight / mWidth, //TOP
-2.0, //NEAR
100.0); //FAR
glMatrixMode(GL_MODELVIEW);
}
Here is my rendering code:
int32_t ES1Renderer::render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/*
RENDERING GOES HERE THE REMOVED FOR EXAMPLE
*/
glBindRenderbufferOES(GL_RENDERBUFFER_OES, colorRenderbuffer);
if (eglSwapBuffers(mDisplay, mSurface) != EGL_TRUE) {
return 0;
}
return 1;
}
解决方案
Ok after a pointer from Sylvain Ratabouil (Check out his Book and page if you want to get up to speed on NDK7) in the setup of OGLES on Android NDK 7. I don't need to Gen and Bind the Buffers as they are handled automatically when setting up the EGL Surface. He suggested adding this:-
EGL_DEPTH_SIZE, 16, EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
to
const EGLint lAttributes[] = { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
EGL_BLUE_SIZE, 5, EGL_GREEN_SIZE, 6, EGL_RED_SIZE, 5,
EGL_DEPTH_SIZE, 16, EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_NONE };
That fixed my depth buffer, note check the EGL state make sure it is supported. Here is the complete setup implementation i used:-
int32_t ES1Renderer::initialiseRenderer() {
EGLint lFormat, lNumConfigs, lErrorResult;
EGLConfig lConfig;
const EGLint lAttributes[] = { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
EGL_BLUE_SIZE, 5, EGL_GREEN_SIZE, 6, EGL_RED_SIZE, 5,
EGL_DEPTH_SIZE, 16, EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_NONE };
mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (mDisplay == EGL_NO_DISPLAY)
goto ERROR;
if (!eglInitialize(mDisplay, NULL, NULL))
goto ERROR;
if (!eglChooseConfig(mDisplay, lAttributes, &lConfig, 1, &lNumConfigs)
|| (lNumConfigs <= 0))
goto ERROR;
if (!eglGetConfigAttrib(mDisplay, lConfig, EGL_NATIVE_VISUAL_ID, &lFormat))
goto ERROR;
ANativeWindow_setBuffersGeometry(mApplication->window, 0, 0, lFormat);
mSurface = eglCreateWindowSurface(mDisplay, lConfig, mApplication->window,
NULL);
if (mSurface == EGL_NO_SURFACE)
goto ERROR;
mContext = eglCreateContext(mDisplay, lConfig, EGL_NO_CONTEXT, NULL);
if (mContext == EGL_NO_CONTEXT)
goto ERROR;
if (!eglMakeCurrent(mDisplay, mSurface, mSurface, mContext)
|| !eglQuerySurface(mDisplay, mSurface, EGL_WIDTH, &mWidth)
|| !eglQuerySurface(mDisplay, mSurface, EGL_HEIGHT, &mHeight)
|| (mWidth <= 0) || (mHeight <= 0))
goto ERROR;
{
const GLfloat matAmbient[] = { 1.0, 1.0, 1.0, 1.0 };
const GLfloat matDiffuse[] = { 1.0, 1.0, 1.0, 1.0 };
const GLfloat lightShininess = 20.0;
glEnable( GL_COLOR_MATERIAL);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, matAmbient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiffuse);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, lightShininess);
}
glLoadIdentity();
#ifdef ORTHOGANAL_PROJECTION
glViewport( 0, 0, mWidth, mHeight );
#endif
glEnable ( GL_DEPTH_TEST );
glDepthFunc( GL_LEQUAL );
glDepthMask( GL_TRUE );
glEnable ( GL_CULL_FACE );
//glShadeModel( GL_SMOOTH );
glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );
glHint( GL_GENERATE_MIPMAP_HINT , GL_NICEST );
glHint( GL_LINE_SMOOTH_HINT , GL_NICEST );
glHint( GL_POINT_SMOOTH_HINT , GL_NICEST );
glHint( GL_FOG_HINT , GL_NICEST );
glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
glMatrixMode(GL_PROJECTION);
glEnable(GL_NORMALIZE);
glEnable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
//glShadeModel(GL_FLAT);
#ifdef ORTHOGANAL_PROJECTION
glOrthof(-1.0, //LEFT
1.0, //RIGHT
-1.0 * mHeight / mWidth, //BOTTOM
1.0 * mHeight / mWidth, //TOP
-2.0, //NEAR
100.0); //FAR
#else
{
GLfloat mWidthf = mWidth;
GLfloat mHeightf = mHeight;
const GLfloat zNear = 0.1;
const GLfloat zFar = 1000.0;
const GLfloat fieldOfView = 60.0;
GLfloat size = zNear * tanf(DEGREES_TO_RADIANS(fieldOfView) / 2.0);
glFrustumf(-size, size, -size / (mWidthf / mHeightf),
size / (mWidthf / mHeightf), zNear, zFar);
glViewport(0, 0, mWidthf, mHeightf);
}
#endif
glMatrixMode(GL_MODELVIEW);
}
Render code remains the same as above.
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