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public interface EGL11
The EGL11 interface contains the Java(TM) programming language bindings for EGL 1.1. It extends the EGL10 interface.
The documentation in this interface is normative with respect to instance variable names and values, method names and signatures, and exception behavior. The remaining documentation is placed here for convenience and does not replace the normative documentation found in the EGL specification and relevant extension specifications. EGL documentation is available at the Khronos web site.
| Field Summary | ||
|---|---|---|
static int |
EGL_BACK_BUFFER
EGL 1.1 constant. |
|
static int |
EGL_BIND_TO_TEXTURE_RGB
EGL 1.1 constant. |
|
static int |
EGL_BIND_TO_TEXTURE_RGBA
EGL 1.1 constant. |
|
static int |
EGL_CONTEXT_LOST
EGL 1.1 constant. |
|
static int |
EGL_MAX_SWAP_INTERVAL
EGL 1.1 constant. |
|
static int |
EGL_MIN_SWAP_INTERVAL
EGL 1.1 constant. |
|
static int |
EGL_MIPMAP_LEVEL
EGL 1.1 constant. |
|
static int |
EGL_MIPMAP_TEXTURE
EGL 1.1 constant. |
|
static int |
EGL_NO_TEXTURE
EGL 1.1 constant. |
|
static int |
EGL_TEXTURE_2D
EGL 1.1 constant. |
|
static int |
EGL_TEXTURE_FORMAT
EGL 1.1 constant. |
|
static int |
EGL_TEXTURE_RGB
EGL 1.1 constant. |
|
static int |
EGL_TEXTURE_RGBA
EGL 1.1 constant. |
|
static int |
EGL_TEXTURE_TARGET
EGL 1.1 constant. |
|
| Method Summary | ||
|---|---|---|
boolean |
eglBindTexImage(EGLDisplay display,
EGLSurface surface,
int buffer)
(EGL 1.1 only) Defines a two-dimensional texture image. |
|
boolean |
eglReleaseTexImage(EGLDisplay display,
EGLSurface surface,
int buffer)
(EGL 1.1 only) Releases a color buffer that is being used as a texture. |
|
boolean |
eglSurfaceAttrib(EGLDisplay display,
EGLSurface surface,
int attribute,
int value)
(EGL 1.1 only) Set an EGL surface attribute. |
|
boolean |
eglSwapInterval(EGLDisplay display,
int interval)
(EGL 1.1 only) Specifies the minimum number of video frame periods per buffer swap for the window associated with the current context. |
|
| Methods inherited from interface javax.microedition.khronos.egl.EGL10 |
|---|
eglChooseConfig, eglCopyBuffers, eglCreateContext, eglCreatePbufferSurface, eglCreatePixmapSurface, eglCreateWindowSurface, eglDestroyContext, eglDestroySurface, eglGetConfigAttrib, eglGetConfigs, eglGetCurrentContext, eglGetCurrentDisplay, eglGetCurrentSurface, eglGetDisplay, eglGetError, eglInitialize, eglMakeCurrent, eglQueryContext, eglQueryString, eglQuerySurface, eglSwapBuffers, eglTerminate, eglWaitGL, eglWaitNative |
| Field Detail |
|---|
static final int EGL_CONTEXT_LOST
static final int EGL_BIND_TO_TEXTURE_RGB
static final int EGL_BIND_TO_TEXTURE_RGBA
static final int EGL_MIN_SWAP_INTERVAL
static final int EGL_MAX_SWAP_INTERVAL
static final int EGL_NO_TEXTURE
static final int EGL_TEXTURE_RGB
static final int EGL_TEXTURE_RGBA
static final int EGL_TEXTURE_2D
static final int EGL_TEXTURE_FORMAT
static final int EGL_TEXTURE_TARGET
static final int EGL_MIPMAP_TEXTURE
static final int EGL_MIPMAP_LEVEL
static final int EGL_BACK_BUFFER
| Method Detail |
|---|
boolean eglSurfaceAttrib(EGLDisplay display,
EGLSurface surface,
int attribute,
int value)
eglSurfaceAttrib sets the value of
attribute for surface to value. attribute can be one of the following:
EGL_MIPMAP_LEVEL
For mipmap textures, the EGL_MIPMAP_LEVEL attribute
indicates which level of the mipmap should be rendered. If the value
of this attribute is outside the range of supported mipmap levels,
the closest valid mipmap level is selected for rendering. The default
value is 0.
If the value of pbuffer attribute EGL_TEXTURE_FORMAT is
EGL_NO_TEXTURE, if the value of attribute
EGL_TEXTURE_TYPE is EGL_NO_TEXTURE, or if
surface is not a pbuffer, then attribute
EGL_MIPMAP_LEVEL may be set, but has no effect.
false is returned on failure, true
otherwise.
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_SURFACE is generated if surface is
not an EGL surface.
EGL_BAD_ATTRIBUTE is generated if attribute
is not a valid surface attribute.
display - Specifies the EGL display connection.surface - Specifies the EGL surface.attribute - Specifies the EGL surface attribute to set.value - Specifies the attributes required value.
true if the operation succeeds.
IllegalArgumentException - if display is null.
IllegalArgumentException - if surface is null.
boolean eglBindTexImage(EGLDisplay display,
EGLSurface surface,
int buffer)
The texture image consists of the image data in buffer
for the specified surface, and need not be copied.
The texture target, the texture format and the size of the texture
components are derived from attributes of the specified surface,
which must be a pbuffer supporting one of the
EGL_BIND_TO_TEXTURE_RGB or
EGL_BIND_TO_TEXTURE_RGBA attributes.
The pbuffer attribute EGL_TEXTURE_FORMAT determines the
base internal format of the texture.
The texture target is derived from the
EGL_TEXTURE_TARGET attribute of surface. If
the attribute value is EGL_TEXTURE_2D, then buffer
defines a texture for the two-dimensional texture object which is
bound to the current context (hereafter referred to as the current
texture object).
If display and surface are the display and
surface for the calling thread’s current context,
eglBindTexImage performs an implicit
glFlush. For other surfaces,
eglBindTexImage waits for all effects from previously
issued OpenGL ES commands drawing to the surface to complete before
defining the texture image, as though glFinish were
called on the last context to which that surface were bound.
After eglBindTexImage is called, the specified surface
is no longer available for reading or writing. Any read operation,
such as glReadPixels or eglCopyBuffers,
which reads values from any of the surface’s color buffers or
ancillary buffers will produce indeterminate results. In addition,
draw operations that are done to the surface before its color buffer
is released from the texture produce indeterminate results.
Specifically, if the surface is current to a context and thread then
rendering commands will be processed and the context state will be
updated, but the surface may or may not be written.
Texture mipmap levels are automatically generated when all of the
following conditions are met while calling
eglBindTexImage:
The EGL_MIPMAP_TEXTURE attribute of the pbuffer being
bound is EGL_TRUE.
The OpenGL ES texture parameter GL_GENERATE_MIPMAP is
GL_TRUE for the currently bound texture.
The value of the EGL_MIPMAP_LEVEL attribute of the
pbuffer being bound is equal to the value of the texture parameter
GL_TEXTURE_BASE_LEVEL. In this case, additional mipmap
levels are generated as described in section 3.8 of the OpenGL ES 1.1
Specification.
eglSwapBuffers has no effect if it is called on a bound
surface.
Any existing images associated with the different mipmap levels of
the texture object are freed (it is as if glTexImage was
called with an image of zero width).
The color buffer is bound to a texture object. If the texture object
is shared between contexts, then the color buffer is also shared. If
a texture object is deleted before eglReleaseTexImage is
called, then the color buffer is released and the surface is made
available for reading and writing.
It is not an error to call glTexImage2D or
glCopyTexImage2D to replace an image of a texture object
that has a color buffer bound to it. However, these calls will cause
the color buffer to be released back to the surface and new memory
will be allocated for the texture. Note that the color buffer is
released even if the image that is being defined is a mipmap level
that was not defined by the color buffer.
eglBindTexImage is ignored if there is no current
rendering context.
EGL_BAD_MATCH is generated if the surface attribute
EGL_TEXTURE_FORMAT is set to EGL_NO_TEXTURE.
EGL_BAD_ACCESS is generated if buffer is
already bound to a texture.
EGL_BAD_VALUE is generated if buffer is not
a valid buffer (currently only EGL_BACK_BUFFER may be specified).
EGL_BAD_SURFACE is generated if surface is not an EGL
surface, or is not a pbuffer surface supporting texture binding.
display - Specifies the EGL display connection.surface - Specifies the EGL surface.buffer - Specifies the texture image data.
true if the operation succeeds.
IllegalArgumentException - if display is null.
IllegalArgumentException - if surface is null.
boolean eglReleaseTexImage(EGLDisplay display,
EGLSurface surface,
int buffer)
The specified color buffer is released back to the surface. The surface is made available for reading and writing when it no longer has any color buffers bound as textures.
If the specified color buffer is no longer bound to a texture (e.g.,
because the texture object was deleted) then
eglReleaseTexImage has no effect. No error is generated.
The contents of the color buffer are undefined when it is first
released. In particular, there is no guarantee that the texture image
is still present. However, the contents of other color buffers are
unaffected by this call. Also, the contents of the depth and stencil
buffers are not affected by eglBindTexImage and
eglReleaseTexImage.
After a color buffer is released from a texture (either explicitly by
calling eglReleaseTexImage or implicitly by calling a
routine such as glTexImage2D), all texture images that
were defined by the color buffer become NULL (it is as if
glTexImage was called with an image of zero width).
EGL_BAD_MATCH is generated if the surface attribute
EGL_TEXTURE_FORMAT is set to EGL_NO_TEXTURE.
EGL_BAD_VALUE is generated if buffer is not
a valid buffer (currently only EGL_BACK_BUFFER may be
specified).
EGL_BAD_SURFACE is generated if surface is
not an EGL surface, or is not a bound pbuffer surface.
display - Specifies the EGL display connection.surface - Specifies the EGL surface.buffer - Specifies the texture image data.
true if the operation succeeds.
IllegalArgumentException - if display is null.
IllegalArgumentException - if surface is null.
boolean eglSwapInterval(EGLDisplay display,
int interval)
The interval takes effect when eglSwapBuffers is first
called subsequent to the eglSwapInterval call.
The interval specified by the function applies to the draw surface bound to the context that is current on the calling thread.
If interval is set to a value of 0, buffer swaps are not
synchronized to a video frame, and the swap happens as soon as the
render is complete. interval is silently clamped to
minimum and maximum implementation dependent values before being
stored; these values are defined by EGLConfig attributes
EGL_MIN_SWAP_INTERVAL and
EGL_MAX_SWAP_INTERVAL respectively.
The swap interval has no effect on eglCopyBuffers.
The default swap interval is 1.
false is returned on failure, true
otherwise.
EGL_BAD_CONTEXT is generated if there is no current
context on the calling thread.
EGL_BAD_SURFACE is generated if there is no surface
bound to the current context.
display - Specifies the EGL display connection.interval - Specifies the minimum number of video frames that are
displayed before a buffer swap will occur.
true if the operation succeeds.
IllegalArgumentException - if display
is null.
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