eglGetConfigAttrib — return information about an EGL frame buffer configuration
EGLBoolean eglGetConfigAttrib( | EGLDisplay display, |
| EGLConfig config, | |
| EGLint attribute, | |
EGLint * value); |
displaySpecifies the EGL display connection.
configSpecifies the EGL frame buffer configuration to be queried.
attributeSpecifies the EGL rendering context attribute to be returned.
valueReturns the requested value.
eglGetConfigAttrib returns in
value the value of
attribute for
config.
attribute can be one of the following:
EGL_BUFFER_SIZEReturns the depth of the color buffer.
It is the sum of
EGL_RED_SIZE,
EGL_GREEN_SIZE,
EGL_BLUE_SIZE, and
EGL_ALPHA_SIZE.
EGL_RED_SIZEReturns the number of bits of red stored in the color buffer.
EGL_GREEN_SIZEReturns the number of bits of green stored in the color buffer.
EGL_BLUE_SIZEReturns the number of bits of blue stored in the color buffer.
EGL_ALPHA_SIZEReturns the number of bits of alpha stored in the color buffer.
EGL_BIND_TO_TEXTURE_RGBReturns EGL_TRUE if color buffers can be
bound to an RGB texture,
EGL_FALSE otherwise.
EGL_BIND_TO_TEXTURE_RGBAReturns EGL_TRUE if color buffers can be
bound to an RGBA texture,
EGL_FALSE otherwise.
EGL_CONFIG_CAVEATReturns the caveats for the frame buffer configuration.
Possible caveat values are
EGL_NONE,
EGL_SLOW_CONFIG, and
EGL_NON_CONFORMANT.
EGL_CONFIG_IDReturns the ID of the frame buffer configuration.
EGL_DEPTH_SIZEReturns the number of bits in the depth buffer.
EGL_LEVELReturns the frame buffer level. Level zero is the default frame buffer. Positive levels correspond to frame buffers that overlay the default buffer and negative levels correspond to frame buffers that underlay the default buffer.
EGL_MAX_PBUFFER_WIDTHReturns the maximum width of a pixel buffer surface in pixels.
EGL_MAX_PBUFFER_HEIGHTReturns the maximum height of a pixel buffer surface in pixels.
EGL_MAX_PBUFFER_PIXELSReturns the maximum size of a pixel buffer surface in pixels.
EGL_MAX_SWAP_INTERVALReturns the maximum value that can be passed to eglSwapInterval.
EGL_MIN_SWAP_INTERVALReturns the minimum value that can be passed to eglSwapInterval.
EGL_NATIVE_RENDERABLEReturns EGL_TRUE if native rendering
APIs can render into the surface,
EGL_FALSE otherwise.
EGL_NATIVE_VISUAL_IDReturns the ID of the associated native visual.
EGL_NATIVE_VISUAL_TYPEReturns the type of the associated native visual.
EGL_SAMPLE_BUFFERSReturns the number of multisample buffers.
EGL_SAMPLESReturns the number of samples per pixel.
EGL_STENCIL_SIZEReturns the number of bits in the stencil buffer.
EGL_SURFACE_TYPEReturns the types of supported EGL surfaces.
EGL_TRANSPARENT_TYPEReturns the type of supported transparency.
Possible transparency values are:
EGL_NONE, and
EGL_TRANSPARENT_RGB.
EGL_TRANSPARENT_RED_VALUEReturns the transparent red value.
EGL_TRANSPARENT_GREEN_VALUEReturns the transparent green value.
EGL_TRANSPARENT_BLUE_VALUEReturns the transparent blue value.
EGL_FALSE is returned on failure,
EGL_TRUE otherwise.
value is not modified when
EGL_FALSE is returned.
EGL_BAD_DISPLAY is generated if
display is not an EGL display connection.
EGL_NOT_INITIALIZED is generated if
display has not been initialized.
EGL_BAD_CONFIG is generated if
config is not an EGL frame buffer configuration.
EGL_BAD_ATTRIBUTE is generated if
attribute is not a valid frame buffer
configuration attribute.
Copyright © 2003-2004 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.