#include <android/log.h>
#include <GLES3/gl3.h>

Classes
struct	astc_header

struct	texture_set

struct	texture_set_info

Macros
#define	LOG_TAG "libNative"

#define	LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)

#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	LOGF(...) __android_log_print(ANDROID_LOG_FATAL, LOG_TAG, __VA_ARGS__)

#define	MALLOC_CHECK(ptr_type, ptr, size)

#define	REALLOC_CHECK(ptr_type, ptr, size)

#define	FREE_CHECK(ptr)

#define	GL_CHECK(x)

#define	GL_COMPRESSED_RGBA_ASTC_4x4_KHR (0x93B0)

#define	GL_COMPRESSED_RGBA_ASTC_5x4_KHR (0x93B1)

#define	GL_COMPRESSED_RGBA_ASTC_5x5_KHR (0x93B2)

#define	GL_COMPRESSED_RGBA_ASTC_6x5_KHR (0x93B3)

#define	GL_COMPRESSED_RGBA_ASTC_6x6_KHR (0x93B4)

#define	GL_COMPRESSED_RGBA_ASTC_8x5_KHR (0x93B5)

#define	GL_COMPRESSED_RGBA_ASTC_8x6_KHR (0x93B6)

#define	GL_COMPRESSED_RGBA_ASTC_8x8_KHR (0x93B7)

#define	GL_COMPRESSED_RGBA_ASTC_10x5_KHR (0x93B8)

#define	GL_COMPRESSED_RGBA_ASTC_10x6_KHR (0x93B9)

#define	GL_COMPRESSED_RGBA_ASTC_10x8_KHR (0x93BA)

#define	GL_COMPRESSED_RGBA_ASTC_10x10_KHR (0x93BB)

#define	GL_COMPRESSED_RGBA_ASTC_12x10_KHR (0x93BC)

#define	GL_COMPRESSED_RGBA_ASTC_12x12_KHR (0x93BD)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR (0x93D0)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR (0x93D1)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR (0x93D2)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR (0x93D3)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR (0x93D4)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR (0x93D5)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR (0x93D6)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR (0x93D7)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR (0x93D8)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR (0x93D9)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR (0x93DA)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR (0x93DB)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR (0x93DC)

#define	GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR (0x93DD)

#define	ASTC_TEXTURE_SWITCH_INTERVAL (5) /* sec */

#define	X_ROTATION_SPEED (5)

#define	Y_ROTATION_SPEED (4)

#define	Z_ROTATION_SPEED (3)

Typedefs
typedef struct texture_set	texture_set

typedef struct texture_set_info	texture_set_info

Functions
GLuint	load_shader (GLenum shader_type, const char *shader_source)
	Create shader object and compile its source code. More...

GLuint	create_program (const char vertex_source, const char fragment_source)
	Create program object, attach vertex and fragment shader to it. Link program object and check whether it has succeeded. More...

GLint	get_and_check_attrib_location (GLuint program, const GLchar *attrib_name)
	Invoke glGetAttribLocation(), if it has returned a positive value. Otherwise, print a message and exit. Function used for clarity reasons. More...

GLint	get_and_check_uniform_location (GLuint program, const GLchar *uniform_name)
	Invoke glGetUniformLocation, if it has returned a positive value. Otherwise, print a message and exit. Function used for clarity reasons. More...

Variables
const char	earth_vertex_shader_source []

const char	earth_fragment_shader_source []

Macro Definition Documentation

#define ASTC_TEXTURE_SWITCH_INTERVAL (5) /* sec */

Definition at line 101 of file AstcTextures.h.

#define FREE_CHECK ( ptr )

Value:

{                       \
    free((void*) ptr);  \
    ptr = NULL;         \
}

Definition at line 53 of file AstcTextures.h.

#define GL_CHECK ( x )

Value:

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

Definition at line 59 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_10x10_KHR (0x93BB)

Definition at line 82 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_10x5_KHR (0x93B8)

Definition at line 79 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_10x6_KHR (0x93B9)

Definition at line 80 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_10x8_KHR (0x93BA)

Definition at line 81 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_12x10_KHR (0x93BC)

Definition at line 83 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_12x12_KHR (0x93BD)

Definition at line 84 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_4x4_KHR (0x93B0)

Definition at line 71 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_5x4_KHR (0x93B1)

Definition at line 72 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_5x5_KHR (0x93B2)

Definition at line 73 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_6x5_KHR (0x93B3)

Definition at line 74 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_6x6_KHR (0x93B4)

Definition at line 75 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_8x5_KHR (0x93B5)

Definition at line 76 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_8x6_KHR (0x93B6)

Definition at line 77 of file AstcTextures.h.

#define GL_COMPRESSED_RGBA_ASTC_8x8_KHR (0x93B7)

Definition at line 78 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR (0x93DB)

Definition at line 96 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR (0x93D8)

Definition at line 93 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR (0x93D9)

Definition at line 94 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR (0x93DA)

Definition at line 95 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR (0x93DC)

Definition at line 97 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR (0x93DD)

Definition at line 98 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR (0x93D0)

Definition at line 85 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR (0x93D1)

Definition at line 86 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR (0x93D2)

Definition at line 87 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR (0x93D3)

Definition at line 88 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR (0x93D4)

Definition at line 89 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR (0x93D5)

Definition at line 90 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR (0x93D6)

Definition at line 91 of file AstcTextures.h.

#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR (0x93D7)

Definition at line 92 of file AstcTextures.h.

#define LOG_TAG "libNative"

Definition at line 27 of file AstcTextures.h.

#define LOGD ( ... ) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)

Definition at line 28 of file AstcTextures.h.

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

Definition at line 30 of file AstcTextures.h.

#define LOGF ( ... ) __android_log_print(ANDROID_LOG_FATAL, LOG_TAG, __VA_ARGS__)

Definition at line 31 of file AstcTextures.h.

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

Definition at line 29 of file AstcTextures.h.

#define MALLOC_CHECK	(	ptr_type,
		ptr,
		size
	)

Value:

{                                                                                \
    ptr = (ptr_type) malloc(size);                                               \
    if (ptr == NULL)                                                             \
    {                                                                            \
        LOGF("Memory allocation error FILE: %s LINE: %i\n", __FILE__, __LINE__); \
        exit(EXIT_FAILURE);                                                      \
    }                                                                            \
}

Definition at line 33 of file AstcTextures.h.

#define REALLOC_CHECK	(	ptr_type,
		ptr,
		size
	)

Value:

{                                                                                \
    ptr = (ptr_type) realloc(ptr, size);                                         \
    if (ptr == NULL)                                                             \
    {                                                                            \
        LOGF("Memory allocation error FILE: %s LINE: %i\n", __FILE__, __LINE__); \
        exit(EXIT_FAILURE);                                                      \
    }                                                                            \
}

Definition at line 43 of file AstcTextures.h.

#define X_ROTATION_SPEED (5)

Definition at line 104 of file AstcTextures.h.

#define Y_ROTATION_SPEED (4)

Definition at line 105 of file AstcTextures.h.

#define Z_ROTATION_SPEED (3)

Definition at line 106 of file AstcTextures.h.

Typedef Documentation

typedef struct texture_set texture_set

typedef struct texture_set_info texture_set_info

Function Documentation

GLuint create_program	(	const char *	vertex_source,
		const char *	fragment_source
	)

Create program object, attach vertex and fragment shader to it. Link program object and check whether it has succeeded.

Parameters

[in]	vertex_source	Vertex or fragment shader.
[in]	fragment_source	Shader source code.

Returns: Program object ID.

Definition at line 229 of file AstcTextures.cpp.

GLint get_and_check_attrib_location	(	GLuint	program,
		const GLchar *	attrib_name
	)

Invoke glGetAttribLocation(), if it has returned a positive value. Otherwise, print a message and exit. Function used for clarity reasons.

Parameters

[in]	program	OpenGL ES specific.
[in]	attrib_name	OpenGL ES specific.

Definition at line 160 of file AstcTextures.cpp.

GLint get_and_check_uniform_location	(	GLuint	program,
		const GLchar *	uniform_name
	)

Invoke glGetUniformLocation, if it has returned a positive value. Otherwise, print a message and exit. Function used for clarity reasons.

Parameters

[in]	program	OpenGL ES specific.
[in]	uniform_name	OpenGL ES specific.

Definition at line 174 of file AstcTextures.cpp.

GLuint load_shader	(	GLenum	shader_type,
		const char *	shader_source
	)

Create shader object and compile its source code.

Parameters

[in]	shader_type	Vertex or fragment shader.
[in]	shader_source	Shader source code.

Returns: Shader object ID.

Definition at line 188 of file AstcTextures.cpp.

Variable Documentation

const char earth_fragment_shader_source[]

Initial value:

=
{
    "#version 300 es\n"
    "precision mediump float;\n"
    "uniform sampler2D cloud_texture;\n"
    "uniform sampler2D daytime_texture;\n"
    "uniform sampler2D nighttime_texture;\n"
    "in vec2 tex2dcoord;\n"
    "in vec3 normal;\n"
    "in vec3 light;\n"
    "in vec3 view;\n"
    "out vec4 color;\n"
    "void main() {\n"
    "    vec3 diffuse_albedo  = vec3(2.0, 2.0, 3.0);\n"
    "    vec3 specular_albedo = vec3(0.1);\n"
    "    float specular_power = 16.0;\n"
    "    vec3 Normal = normalize(normal);\n"
    "    vec3 Light  = normalize(light);\n"
    "    vec3 View   = normalize(view);\n"
    "    vec3 reflected_light = reflect(-Light, Normal);\n"
    "    vec3 diffuse = max(dot(Normal, Light), 0.0) * diffuse_albedo;\n"
    "    vec3 specular = pow(max(dot(reflected_light, View), 0.0), specular_power) * specular_albedo;\n"
    "    vec2 clouds    = texture(cloud_texture,     tex2dcoord).rg;\n"
    "    vec3 daytime   = (texture(daytime_texture,  tex2dcoord).rgb * diffuse + specular * clouds.g) * (1.0 - clouds.r) + clouds.r * diffuse;\n"
    "    vec3 nighttime = texture(nighttime_texture, tex2dcoord).rgb * (1.0 - clouds.r) * 2.0;\n"
    "    color = vec4(mix(nighttime, daytime, 0.5), 1.0);\n"
    "}\n"
}

Definition at line 133 of file AstcTextures.h.

const char earth_vertex_shader_source[]

Initial value:

=
{
    "#version 300 es\n"
    "in vec4 av4position;\n"
    "in vec3 vv3normal;\n"
    "in vec2 vv3tex2dcoord;\n"
    "uniform mat4 mv;\n"
    "uniform mat4 mvp;\n"
    "out vec2 tex2dcoord;\n"
    "out vec3 normal;\n"
    "out vec3 light;\n"
    "out vec3 view;\n"
    "void main() {\n"
    "    vec3 light_position = vec3(15.0, 0.0, 0.0);\n"
    "    vec4 P = mv * av4position;\n"
    "    normal = mat3(mv) * vv3normal;\n"
    "    light = light_position - P.xyz;\n"
    "    view  = -P.xyz;\n"
    "    tex2dcoord = vv3tex2dcoord;\n"
    "    gl_Position = mvp * av4position;\n"
    "}\n"
}

Definition at line 109 of file AstcTextures.h.

Classes

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation