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Diffstat (limited to 'opengl/system/renderControl_enc/README')
| -rw-r--r-- | opengl/system/renderControl_enc/README | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/opengl/system/renderControl_enc/README b/opengl/system/renderControl_enc/README deleted file mode 100644 index 349b6dbd..00000000 --- a/opengl/system/renderControl_enc/README +++ /dev/null @@ -1,142 +0,0 @@ -The renderControl.in file in this directory defines an API which is decoded -on the android guest into a stream and get decoded and executed on the host. -It is used in order to query the host renderer as well as send the host renderer -control commands. - -The following describes each of the entries defined by this renderControl API. - - -GLint rcGetRendererVersion(); - This function queries the host renderer version number. - -EGLint rcGetEGLVersion(EGLint* major, EGLint* minor); - This function queries the host renderer for the EGL version - it supports. returns EGL_FALSE on failure. - -EGLint rcQueryEGLString(EGLenum name, void* buffer, EGLint bufferSize); - This function queries the host for EGL string (.i.e EGL_EXTENSIONS). - if buffer is NULL or the bufferSize is not big enough the return value - is the negative number of bytes required to store the string value - otherwise the string value is copied to buffer and its size is - returned. - -EGLint rcGetNumConfigs(uint32_t* numAttribs); - queries the host for the number of supported EGL configs. - The function returns the number of supported configs and returns in - numAttribs the number of attributes available for each config. - -EGLint rcGetConfigs(uint32_t bufSize, GLuint* buffer); - This function queries the host for the all set of supported configs - with their attribute values. - bufSize is the size of buffer, the size should be at least equal to - (numConfigs + 1) * numAttribs * sizeof(GLuint) - where numConfigs and numAttribs are the values returned in - rcGetNumConfigs. if bufSize is not big enough then the negative number - of required bytes is returned otherwise the function returns the number - of configs and buffer is filled as follows: The first 'numAttribs' - integer values are filled with the EGL enumerant describing a config - attribute, next for each config there are 'numAttribs' integer values - holding the attribute values for that config, the values are specified - in the same order as the attribute vector. - -EGLint rcChooseConfig(EGLint *attribs, uint32_t attribs_size, uint32_t *configs, uint32_t configs_size) - This function triggers an eglChooseConfig on the host, to get a list of - configs matching the given attribs values. - attribs - a list of attribute names followed by the desired values, terminated by EGL_NONE - attribs_size - the size of the list - configs - the returned matching configuration names (same names as familiar to the client in rcGetConfigs) - configs_size - the size of the configs buffers - returns - the actual number of matching configurations (<= configs_size) - -EGLint rcGetFBParam(EGLint param); - queries the host for framebuffer parameter, see renderControl_types.h - for possible values of 'param'. - -uint32_t rcCreateContext(uint32_t config, uint32_t share, uint32_t glVersion); - This function creates a rendering context on the host and returns its - handle. config is the config index for the context, share is either zero - or a handle to a sharing context. glVersion is either 1 or 2 for GLES1 - or GLES2 context respectively. - - -void rcDestroyContext(uint32_t context); - This function destroys a rendering context on the host. - context is a handle returned in rcCreateContext. - -uint32_t rcCreateWindowSurface(uint32_t config, uint32_t width, uint32_t height); - This function creates a 'window' surface on the host which can be then - bind for rendering through rcMakeCurrent. - The function returns a handle to the created window surface. - -void rcDestroyWindowSurface(uint32_t windowSurface); - This function destoys a window surface. - -uint32_t rcCreateColorBuffer(uint32_t width, uint32_t height, GLenum internalFormat); - This function creates a colorBuffer object on the host which can be then - be specified as a render target for a window surface through - rcSetWindowColorBuffer or to be displayed on the framebuffer window - through rcFBPost. - The function returns a handle to the colorBuffer object, with an initial - reference count of 1. - -void rcOpenColorBuffer(uint32_t colorbuffer); - Adds an additional reference to the colorbuffer, typically from a - different Android process than the one which created it. - -void rcCloseColorBuffer(uint32_t colorbuffer); - Removes a reference to the colorbuffer. When the reference count drops - to zero the colorbuffer is automatically destroyed. - -void rcFlushWindowColorBuffer(uint32_t windowSurface, uint32_t colorBuffer); - This flushes the current window color buffer - -void rcSetWindowColorBuffer(uint32_t windowSurface, uint32_t colorBuffer); - This set the target color buffer for a windowSurface, when set the - previous target colorBuffer gets updated before switching to the new - colorBuffer. - -EGLint rcMakeCurrent(uint32_t context, uint32_t drawSurf, uint32_t readSurf); - Binds a windowSurface(s) and current rendering context for the - calling thread. - -void rcFBPost(uint32_t colorBuffer); - This function causes the content of the colorBuffer object to be - displayed on the host framebuffer window. The function returns - immediatly, the buffer will be displayed at the next swap interval. - -void rcFBSetSwapInterval(EGLint interval); - Sets the swap interval for the host framebuffer window. - -void rcBindTexture(uint32_t colorBuffer); - This function instruct the host to bind the content of the specified - colorBuffer to the current binded texture object of the calling thread. - This function should be used to implement eglBindTexImage. - -EGLint rcColorBufferCacheFlush(uint32_t colorbuffer, EGLint postCount, int forRead); - This function returns only after all rendering requests for the specified - colorBuffer rendering target has been processed and after all 'postCount' - posts for the buffer requested previously through rcFBPost has been - processed. - if 'forRead' is not-zero, the function returns positive value in case - there was rendering done to the buffer since the last CacheFlush request - with non-zero 'forRead' value, otherwise the function returns zero or - negative value on failure. - -void rcReadColorBuffer(uint32_t colorbuffer, GLint x, GLint y, - GLint width, GLint height, GLenum format, - GLenum type, void* pixels); - This function queries the host for the pixel content of a colorBuffer's - subregion. It act the same as OpenGL glReadPixels however pixels - are always packed with alignment of 1. - -void rcUpdateColorBuffer(uint32_t colorbuffer, GLint x, GLint y, - GLint width, GLint height, GLenum format, - GLenum type, void* pixels); - Updates the content of a subregion of a colorBuffer object. - pixels are always unpacked with alignment of 1. - -uint32_t rcCreateClientImage(uint32_t context, EGLenum target, GLuint buffer) - Create an EGLImage from a client object. - -int rcDestroyClientImage(uint32_t image) - Destroy an EGLImage object. |