#include <jni.h>
#include <android/log.h>
#include <GLES3/gl3.h>
#include <EGL/egl.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <cstring>
#include "Matrix.h"

Macros
#define	LOG_TAG "libNative"

#define	LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)

#define	LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)

#define	GL_CHECK(x)

Typedefs
typedef void(*	PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVR )(GLenum, GLenum, GLuint, GLint, GLint, GLsizei)

Functions
GLuint	loadShader (GLenum shaderType, const char *shaderSource)

GLuint	createProgram (const char vertexSource, const char fragmentSource)

bool	setupFBO (int width, int height)

bool	setupGraphics (int width, int height)

void	renderToFBO (int width, int height)

void	renderFrame ()

JNIEXPORT void JNICALL	Java_com_arm_malideveloper_openglessdk_multiview_NativeLibrary_init (JNIEnv *env, jobject obj, jint width, jint height)

JNIEXPORT void JNICALL	Java_com_arm_malideveloper_openglessdk_multiview_NativeLibrary_step (JNIEnv *env, jobject obj)

Variables
GLuint	fboWidth = 1280

GLuint	fboHeight = 720

GLuint	screenWidth

GLuint	screenHeight

GLuint	frameBufferTextureId

GLuint	frameBufferDepthTextureId

GLuint	frameBufferObjectId

GLuint	multiviewProgram

GLuint	multiviewVertexLocation

GLuint	multiviewVertexNormalLocation

GLuint	multiviewModelViewProjectionLocation

GLuint	multiviewModelLocation

GLuint	texturedQuadProgram

GLuint	texturedQuadVertexLocation

GLuint	texturedQuadLowResTexCoordLocation

GLuint	texturedQuadHighResTexCoordLocation

GLuint	texturedQuadSamplerLocation

GLuint	texturedQuadLayerIndexLocation

Matrix	projectionMatrix [4]

Matrix	viewMatrix [4]

Matrix	viewProjectionMatrix [4]

Matrix	modelViewProjectionMatrix [4]

Matrix	modelMatrix

float	angle = 0

PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVR	glFramebufferTextureMultiviewOVR

static const char	multiviewVertexShader []

static const char	multiviewFragmentShader []

static const char	texturedQuadVertexShader []

static const char	texturedQuadFragmentShader []

GLfloat	multiviewVertices []

GLfloat	multiviewNormals []

GLushort	multiviewIndices []

float	texturedQuadCoordinates []

float	texturedQuadLowResTexCoordinates []

float	texturedQuadHighResTexCoordinates []

Macro Definition Documentation

#define GL_CHECK ( x )

Value:

x;                                                                                           \
    {                                                                                            \
        GLenum glError = glGetError();                                                           \
        if(glError != GL_NO_ERROR) {                                                             \
            LOGE("glGetError() = %i (0x%.8x) at %s:%i\n", glError, glError, __FILE__, __LINE__); \
            exit(1);                                                                             \
        }                                                                                        \
    }

Definition at line 38 of file Native.cpp.

#define LOG_TAG "libNative"

Definition at line 34 of file Native.cpp.

#define LOGE ( ... ) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)

Definition at line 36 of file Native.cpp.

#define LOGI ( ... ) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)

Definition at line 35 of file Native.cpp.

Typedef Documentation

typedef void(* PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVR)(GLenum, GLenum, GLuint, GLint, GLint, GLsizei)

Definition at line 78 of file Native.cpp.

Function Documentation

GLuint createProgram	(	const char *	vertexSource,
		const char *	fragmentSource
	)

Definition at line 342 of file Native.cpp.

JNIEXPORT void JNICALL Java_com_arm_malideveloper_openglessdk_multiview_NativeLibrary_init	(	JNIEnv *	env,
		jobject	obj,
		jint	width,
		jint	height
	)

Definition at line 650 of file Native.cpp.

JNIEXPORT void JNICALL Java_com_arm_malideveloper_openglessdk_multiview_NativeLibrary_step	(	JNIEnv *	env,
		jobject	obj
	)

Definition at line 656 of file Native.cpp.

GLuint loadShader	(	GLenum	shaderType,
		const char *	shaderSource
	)

Definition at line 307 of file Native.cpp.

void renderFrame ( void )

Definition at line 592 of file Native.cpp.

void renderToFBO	(	int	width,
		int	height
	)

Definition at line 529 of file Native.cpp.

bool setupFBO	(	int	width,
		int	height
	)

Definition at line 388 of file Native.cpp.

bool setupGraphics	(	int	width,
		int	height
	)

Definition at line 428 of file Native.cpp.

Variable Documentation

float angle = 0

Definition at line 76 of file Native.cpp.

GLuint fboHeight = 720

Definition at line 51 of file Native.cpp.

GLuint fboWidth = 1280

Definition at line 50 of file Native.cpp.

GLuint frameBufferDepthTextureId

Definition at line 55 of file Native.cpp.

GLuint frameBufferObjectId

Definition at line 56 of file Native.cpp.

GLuint frameBufferTextureId

Definition at line 54 of file Native.cpp.

PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVR glFramebufferTextureMultiviewOVR

Definition at line 79 of file Native.cpp.

Matrix modelMatrix

Definition at line 75 of file Native.cpp.

Matrix modelViewProjectionMatrix[4]

Definition at line 74 of file Native.cpp.

const char multiviewFragmentShader[]

static

Initial value:

=
    "#version 300 es\n"
    "precision highp float;\n"
    "in vec3 v_normal;\n"
    "out vec4 f_color;\n"
    "vec3 light(vec3 n, vec3 l, vec3 c)\n"
    "{\n"
    "    float ndotl = max(dot(n, l), 0.0);\n"
    "    return ndotl * c;\n"
    "}\n"
    "void main()\n"
    "{\n"
    "    vec3 albedo = vec3(0.95, 0.84, 0.62);\n"
    "    vec3 n = normalize(v_normal);\n"
    "    f_color.rgb = vec3(0.0);\n"
    "    f_color.rgb += light(n, normalize(vec3(1.0)), vec3(1.0));\n"
    "    f_color.rgb += light(n, normalize(vec3(-1.0, -1.0, 0.0)), vec3(0.2, 0.23, 0.35));\n"
    "    f_color.a = 1.0;\n"
    "}\n"

Definition at line 101 of file Native.cpp.

GLushort multiviewIndices[]

Initial value:

=
{
    
    0, 1, 2,
    0, 2, 3,
    
    4, 5, 6,
    4, 6, 7,
    
    8, 9, 10,
    8, 10, 11,
    
    12, 13, 14,
    12, 14, 15,
    
    16, 17, 18,
    16, 18, 19,
    
    20, 21, 22,
    20, 22, 23
}

Definition at line 244 of file Native.cpp.

GLuint multiviewModelLocation

Definition at line 62 of file Native.cpp.

GLuint multiviewModelViewProjectionLocation

Definition at line 61 of file Native.cpp.

GLfloat multiviewNormals[]

Definition at line 204 of file Native.cpp.

GLuint multiviewProgram

Definition at line 58 of file Native.cpp.

GLuint multiviewVertexLocation

Definition at line 59 of file Native.cpp.

GLuint multiviewVertexNormalLocation

Definition at line 60 of file Native.cpp.

const char multiviewVertexShader[]

static

Initial value:

=
    "#version 300 es\n"
    "#extension GL_OVR_multiview : enable\n"
    "layout(num_views = 4) in;\n"
    "in vec3 vertexPosition;\n"
    "in vec3 vertexNormal;\n"
    "uniform mat4 modelViewProjection[4];\n"
    "uniform mat4 model;\n"
    "out vec3 v_normal;\n"
    "void main()\n"
    "{\n"
    "    gl_Position = modelViewProjection[gl_ViewID_OVR] * vec4(vertexPosition, 1.0);\n"
    "    v_normal = (model * vec4(vertexNormal, 0.0f)).xyz;\n"
    "}\n"

Definition at line 82 of file Native.cpp.

GLfloat multiviewVertices[]

Definition at line 165 of file Native.cpp.

Matrix projectionMatrix[4]

Definition at line 71 of file Native.cpp.

GLuint screenHeight

Definition at line 53 of file Native.cpp.

GLuint screenWidth

Definition at line 52 of file Native.cpp.

float texturedQuadCoordinates[]

Initial value:

=
{
    -1.0f, -1.0f, 0.0f,
     1.0f, -1.0f, 0.0f,
     1.0f,  1.0f, 0.0f,
    -1.0f, -1.0f, 0.0f,
     1.0f,  1.0f, 0.0f,
    -1.0f,  1.0f, 0.0f
}

Definition at line 272 of file Native.cpp.

const char texturedQuadFragmentShader[]

static

Initial value:

=
    "#version 300 es\n"
    "precision mediump float;\n"
    "precision mediump int;\n"
    "precision mediump sampler2DArray;\n"
    "in vec2 vLowResTexCoord;\n"
    "in vec2 vHighResTexCoord;\n"
    "out vec4 fragColor;\n"
    "uniform sampler2DArray tex;\n"
    "uniform int layerIndex;\n"
    "void main()\n"
    "{\n"
    "    vec4 lowResSample = texture(tex, vec3(vLowResTexCoord, layerIndex));\n"
    "    vec4 highResSample = texture(tex, vec3(vHighResTexCoord, layerIndex + 2));\n"
    "    // Using squared distance to middle of screen for interpolating.\n"
    "    vec2 distVec = vec2(0.5) - vHighResTexCoord;\n"
    "    float squaredDist = dot(distVec, distVec);\n"
    "    // Using the high res texture when distance from center is less than 0.5 in texture coordinates (0.25 is 0.5 squared).\n"
    "    // When the distance is less than 0.2 (0.04 is 0.2 squared), only the high res texture will be used.\n"
    "    float lerpVal = smoothstep(-0.25, -0.04, -squaredDist);\n"
    "    fragColor = mix(lowResSample, highResSample, lerpVal);\n"
    "}\n"

Definition at line 141 of file Native.cpp.

float texturedQuadHighResTexCoordinates[]

Initial value:

=
{
    -0.5, -0.5,
     1.5, -0.5,
     1.5,  1.5,
    -0.5, -0.5,
     1.5,  1.5,
    -0.5,  1.5
}

Definition at line 296 of file Native.cpp.

GLuint texturedQuadHighResTexCoordLocation

Definition at line 67 of file Native.cpp.

GLuint texturedQuadLayerIndexLocation

Definition at line 69 of file Native.cpp.

float texturedQuadLowResTexCoordinates[]

Initial value:

=
{
    0, 0,
    1, 0,
    1, 1,
    0, 0,
    1, 1,
    0, 1
}

Definition at line 284 of file Native.cpp.

GLuint texturedQuadLowResTexCoordLocation

Definition at line 66 of file Native.cpp.

GLuint texturedQuadProgram

Definition at line 64 of file Native.cpp.

GLuint texturedQuadSamplerLocation

Definition at line 68 of file Native.cpp.

GLuint texturedQuadVertexLocation

Definition at line 65 of file Native.cpp.

const char texturedQuadVertexShader[]

static

Initial value:

=
    "#version 300 es\n"
    "in vec3 attributePosition;\n"
    "in vec2 attributeLowResTexCoord;\n"
    "in vec2 attributeHighResTexCoord;\n"
    "out vec2 vLowResTexCoord;\n"
    "out vec2 vHighResTexCoord;\n"
    "void main()\n"
    "{\n"
    "    vLowResTexCoord = attributeLowResTexCoord;\n"
    "    vHighResTexCoord = attributeHighResTexCoord;\n"
    "    gl_Position = vec4(attributePosition, 1.0);\n"
    "}\n"

Definition at line 126 of file Native.cpp.

Matrix viewMatrix[4]

Definition at line 72 of file Native.cpp.

Matrix viewProjectionMatrix[4]

Definition at line 73 of file Native.cpp.

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation