org.lwjgl.opengles

Class OESViewportArray

java.lang.Object

org.lwjgl.opengles.OESViewportArray

public class OESViewportArray
extends java.lang.Object

Native bindings to the OES_viewport_array extension.

OpenGL ES is modeled on a pipeline of operations. The final stage in this pipeline before rasterization is the viewport transformation. This stage transforms vertices from view space into window coordinates and allows the application to specify a rectangular region of screen space into which OpenGL ES should draw primitives. Unextended OpenGL ES implementations provide a single viewport per context. In order to draw primitives into multiple viewports, the OpenGL ES viewport may be changed between several draw calls. With the advent of Geometry Shaders, it has become possible for an application to amplify geometry and produce multiple output primitives for each primitive input to the Geometry Shader. It is possible to direct these primitives to render into a selected render target. However, all render targets share the same, global OpenGL ES viewport.

This extension enhances OpenGL ES by providing a mechanism to expose multiple viewports. Each viewport is specified as a rectangle. The destination viewport may be selected per-primitive by the geometry shader. This allows the Geometry Shader to produce different versions of primitives destined for separate viewport rectangles on the same surface. Additionally, when combined with multiple framebuffer attachments, it allows a different viewport rectangle to be selected for each. This extension also exposes a separate scissor rectangle for each viewport. Finally, the viewport bounds are now floating point quantities allowing fractional pixel offsets to be applied during the viewport transform.

Requires GLES32, EXT_geometry_shader or OES_geometry_shader.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_MAX_VIEWPORTS_OES Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_BOUNDS_RANGE_OES Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_SUBPIXEL_BITS_OES Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

Method Summary

Modifier and Type	Method and Description
static void	glDepthRangeArrayfvOES(int first, float[] v) Array version of: DepthRangeArrayfvOES
static void	glDepthRangeArrayfvOES(int first, java.nio.FloatBuffer v)
static void	glDepthRangeIndexedfOES(int index, float n, float f)
static void	glDisableiOES(int target, int index)
static void	glEnableiOES(int target, int index)
static void	glGetFloati_vOES(int target, int index, float[] data) Array version of: GetFloati_vOES
static void	glGetFloati_vOES(int target, int index, java.nio.FloatBuffer data)
static float	glGetFloatiOES(int target, int index)
static boolean	glIsEnablediOES(int target, int index)
static void	glScissorArrayvOES(int first, int[] v) Array version of: ScissorArrayvOES
static void	glScissorArrayvOES(int first, java.nio.IntBuffer v)
static void	glScissorIndexedOES(int index, int left, int bottom, int width, int height)
static void	glScissorIndexedvOES(int index, int[] v) Array version of: ScissorIndexedvOES
static void	glScissorIndexedvOES(int index, java.nio.IntBuffer v)
static void	glViewportArrayvOES(int first, float[] v) Array version of: ViewportArrayvOES
static void	glViewportArrayvOES(int first, java.nio.FloatBuffer v)
static void	glViewportIndexedfOES(int index, float x, float y, float w, float h)
static void	glViewportIndexedfvOES(int index, float[] v) Array version of: ViewportIndexedfvOES
static void	glViewportIndexedfvOES(int index, java.nio.FloatBuffer v)
static void	nglDepthRangeArrayfvOES(int first, int count, long v)
static void	nglGetFloati_vOES(int target, int index, long data)
static void	nglScissorArrayvOES(int first, int count, long v)
static void	nglScissorIndexedvOES(int index, long v)
static void	nglViewportArrayvOES(int first, int count, long v)
static void	nglViewportIndexedfvOES(int index, long v)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GL_MAX_VIEWPORTS_OES

public static final int GL_MAX_VIEWPORTS_OES

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_SUBPIXEL_BITS_OES

public static final int GL_VIEWPORT_SUBPIXEL_BITS_OES

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_BOUNDS_RANGE_OES

public static final int GL_VIEWPORT_BOUNDS_RANGE_OES

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES

public static final int GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

Method Detail

nglViewportArrayvOES

public static void nglViewportArrayvOES(int first,
                                        int count,
                                        long v)

glViewportArrayvOES

public static void glViewportArrayvOES(int first,
                                       java.nio.FloatBuffer v)

glViewportIndexedfOES

public static void glViewportIndexedfOES(int index,
                                         float x,
                                         float y,
                                         float w,
                                         float h)

nglViewportIndexedfvOES

public static void nglViewportIndexedfvOES(int index,
                                           long v)

glViewportIndexedfvOES

public static void glViewportIndexedfvOES(int index,
                                          java.nio.FloatBuffer v)

nglScissorArrayvOES

public static void nglScissorArrayvOES(int first,
                                       int count,
                                       long v)

glScissorArrayvOES

public static void glScissorArrayvOES(int first,
                                      java.nio.IntBuffer v)

glScissorIndexedOES

public static void glScissorIndexedOES(int index,
                                       int left,
                                       int bottom,
                                       int width,
                                       int height)

nglScissorIndexedvOES

public static void nglScissorIndexedvOES(int index,
                                         long v)

glScissorIndexedvOES

public static void glScissorIndexedvOES(int index,
                                        java.nio.IntBuffer v)

nglDepthRangeArrayfvOES

public static void nglDepthRangeArrayfvOES(int first,
                                           int count,
                                           long v)

glDepthRangeArrayfvOES

public static void glDepthRangeArrayfvOES(int first,
                                          java.nio.FloatBuffer v)

glDepthRangeIndexedfOES

public static void glDepthRangeIndexedfOES(int index,
                                           float n,
                                           float f)

nglGetFloati_vOES

public static void nglGetFloati_vOES(int target,
                                     int index,
                                     long data)

glGetFloati_vOES

public static void glGetFloati_vOES(int target,
                                    int index,
                                    java.nio.FloatBuffer data)

glGetFloatiOES

public static float glGetFloatiOES(int target,
                                   int index)

glEnableiOES

public static void glEnableiOES(int target,
                                int index)

glDisableiOES

public static void glDisableiOES(int target,
                                 int index)

glIsEnablediOES

public static boolean glIsEnablediOES(int target,
                                      int index)

glViewportArrayvOES

public static void glViewportArrayvOES(int first,
                                       float[] v)

Array version of: ViewportArrayvOES

glViewportIndexedfvOES

public static void glViewportIndexedfvOES(int index,
                                          float[] v)

Array version of: ViewportIndexedfvOES

glScissorArrayvOES

public static void glScissorArrayvOES(int first,
                                      int[] v)

Array version of: ScissorArrayvOES

glScissorIndexedvOES

public static void glScissorIndexedvOES(int index,
                                        int[] v)

Array version of: ScissorIndexedvOES

glDepthRangeArrayfvOES

public static void glDepthRangeArrayfvOES(int first,
                                          float[] v)

Array version of: DepthRangeArrayfvOES

glGetFloati_vOES

public static void glGetFloati_vOES(int target,
                                    int index,
                                    float[] data)

Array version of: GetFloati_vOES