int main(int argc, char *argv[])
{
EGLDisplay display;
EGLint egl_major, egl_minor;
EGLConfig config;
EGLint num_config;
EGLContext context;
EGLSurface surface;
GLuint vertex_shader;
GLuint fragment_shader;
GLuint program;
GLint ret;
GLint width, height;
#ifdef HOOK
the_hook("/mnt/sdcard/egl2.fdr");
#endif
const char *vertex_shader_source =
"uniform mat4 modelviewMatrix;\n"
"uniform mat4 modelviewprojectionMatrix;\n"
"uniform mat3 normalMatrix;\n"
"\n"
"attribute vec4 in_position; \n"
"attribute vec3 in_normal; \n"
"attribute vec2 in_texcoord; \n"
"\n"
"vec4 lightSource = vec4(2.0, 2.0, 20.0, 0.0);\n"
" \n"
"varying vec4 vColor; \n"
"varying vec2 vTexCoord; \n"
"uniform sampler2D s_texture; \n"
" \n"
"void main() \n"
"{ \n"
" float texvalue = texture2D(s_texture, in_texcoord).x;\n"
" gl_Position = modelviewprojectionMatrix * (in_position + vec4(0.2 * texvalue * in_normal, 0));\n"
" vec3 vEyeNormal = normalMatrix * in_normal;\n"
" vec4 vPosition4 = modelviewMatrix * in_position;\n"
" vec3 vPosition3 = vPosition4.xyz / vPosition4.w;\n"
" vec3 vLightDir = normalize(lightSource.xyz - vPosition3);\n"
" float diff = max(0.0, dot(vEyeNormal, vLightDir));\n"
" vColor = vec4(diff, 0.0, 0.0, 1.0);\n"
" vTexCoord = in_texcoord;\n"
"} \n";
const char *fragment_shader_source =
"precision mediump float; \n"
" \n"
"varying vec4 vColor; \n"
"varying vec2 vTexCoord; \n"
" \n"
"void main() \n"
"{ \n"
" gl_FragColor = vColor;// * texture2D(s_texture, vTexCoord); \n"
"} \n";
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
printf("Error: No display found!\n");
return -1;
}
if (!eglInitialize(display, &egl_major, &egl_minor)) {
printf("Error: eglInitialise failed!\n");
return -1;
}
printf("Using display %p with EGL version %d.%d\n",
display, egl_major, egl_minor);
printf("EGL Version \"%s\"\n", eglQueryString(display, EGL_VERSION));
printf("EGL Vendor \"%s\"\n", eglQueryString(display, EGL_VENDOR));
printf("EGL Extensions \"%s\"\n", eglQueryString(display, EGL_EXTENSIONS));
/* get an appropriate EGL frame buffer configuration */
eglChooseConfig(display, config_attribute_list, &config, 1, &num_config);
/* create an EGL rendering context */
context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attribute_list);
if (context == EGL_NO_CONTEXT) {
printf("Error: eglCreateContext failed: %d\n", eglGetError());
return -1;
}
surface = eglCreatePbufferSurface(display, config, pbuffer_attribute_list);
if (surface == EGL_NO_SURFACE) {
printf("Error: eglCreatePbufferSurface failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
if (!eglQuerySurface(display, surface, EGL_WIDTH, &width) ||
!eglQuerySurface(display, surface, EGL_HEIGHT, &height)) {
printf("Error: eglQuerySurface failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
printf("PBuffer: %dx%d\n", width, height);
printf("GL Extensions \"%s\"\n", glGetString(GL_EXTENSIONS));
/* connect the context to the surface */
if (!eglMakeCurrent(display, surface, surface, context)) {
printf("Error: eglMakeCurrent() failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
vertex_shader = glCreateShader(GL_VERTEX_SHADER);
if (!vertex_shader) {
printf("Error: glCreateShader(GL_VERTEX_SHADER) failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
glShaderSource(vertex_shader, 1, &vertex_shader_source, NULL);
glCompileShader(vertex_shader);
glGetShaderiv(vertex_shader, GL_COMPILE_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: vertex shader compilation failed!:\n");
glGetShaderiv(vertex_shader, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetShaderInfoLog(vertex_shader, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("Vertex shader compilation succeeded!\n");
fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
if (!fragment_shader) {
printf("Error: glCreateShader(GL_FRAGMENT_SHADER) failed: %d (%s)\n",
eglGetError(), eglStrError(eglGetError()));
return -1;
}
glShaderSource(fragment_shader, 1, &fragment_shader_source, NULL);
glCompileShader(fragment_shader);
glGetShaderiv(fragment_shader, GL_COMPILE_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: fragment shader compilation failed!:\n");
glGetShaderiv(fragment_shader, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetShaderInfoLog(fragment_shader, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("Fragment shader compilation succeeded!\n");
program = glCreateProgram();
if (!program) {
printf("Error: failed to create program!\n");
return -1;
}
GLfloat *vVertices;
GLfloat *vNormals;
GLfloat *vTexCoords;
GLushort *vIndices;
int numIndices = esGenSphere(40, 1.0f, &vVertices, &vNormals,
&vTexCoords, &vIndices, NULL);
GLuint texId = createSimpleTexture();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glBindAttribLocation(program, 0, "in_position");
glBindAttribLocation(program, 1, "in_normal");
glBindAttribLocation(program, 2, "in_texcoord");
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &ret);
if (!ret) {
char *log;
printf("Error: program linking failed!:\n");
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &ret);
if (ret > 1) {
log = malloc(ret);
glGetProgramInfoLog(program, ret, NULL, log);
printf("%s", log);
}
return -1;
} else
printf("program linking succeeded!\n");
glUseProgram(program);
glViewport(0, 0, width, height);
/* clear the color buffer */
glClearColor(0.5, 0.5, 0.5, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, vVertices);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, vNormals);
glEnableVertexAttribArray(1);
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 0, vTexCoords);
glEnableVertexAttribArray(2);
ESMatrix modelview;
esMatrixLoadIdentity(&modelview);
esTranslate(&modelview, 0.0f, 0.0f, -8.0f);
esRotate(&modelview, 45.0f, 1.0f, 0.0f, 0.0f);
esRotate(&modelview, 45.0f, 0.0f, 1.0f, 0.0f);
esRotate(&modelview, 10.0f, 0.0f, 0.0f, 1.0f);
GLfloat aspect = (GLfloat)(height) / (GLfloat)(width);
ESMatrix projection;
esMatrixLoadIdentity(&projection);
esFrustum(&projection, -1.8f, +1.8f, -1.8f * aspect, +1.8f * aspect, 6.0f, 10.0f);
ESMatrix modelviewprojection;
esMatrixLoadIdentity(&modelviewprojection);
esMatrixMultiply(&modelviewprojection, &modelview, &projection);
float normal[9];
normal[0] = modelview.m[0][0];
normal[1] = modelview.m[0][1];
normal[2] = modelview.m[0][2];
normal[3] = modelview.m[1][0];
normal[4] = modelview.m[1][1];
normal[5] = modelview.m[1][2];
normal[6] = modelview.m[2][0];
normal[7] = modelview.m[2][1];
normal[8] = modelview.m[2][2];
GLint modelviewmatrix_handle = glGetUniformLocation(program, "modelviewMatrix");
GLint modelviewprojectionmatrix_handle = glGetUniformLocation(program, "modelviewprojectionMatrix");
GLint normalmatrix_handle = glGetUniformLocation(program, "normalMatrix");
GLint sampler_handle = glGetUniformLocation(program, "s_texture");
glUniformMatrix4fv(modelviewmatrix_handle, 1, GL_FALSE, &modelview.m[0][0]);
glUniformMatrix4fv(modelviewprojectionmatrix_handle, 1, GL_FALSE, &modelviewprojection.m[0][0]);
glUniformMatrix3fv(normalmatrix_handle, 1, GL_FALSE, normal);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texId);
glUniform1i(sampler_handle, 0);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glDrawElements(GL_TRIANGLES, numIndices, GL_UNSIGNED_SHORT, vIndices);
glFlush();
fflush(stdout);
dump_gl_screen("/sdcard/egl2.bmp", width, height);
#ifdef HOOK
close_hook();
#endif
return 0;
}
.instance_divisor = 0,
.vertex_buffer_index = 0,
.src_format = PIPE_FORMAT_R32G32B32_FLOAT
},
{ /* texture coord */
.src_offset = 0x18,
.instance_divisor = 0,
.vertex_buffer_index = 0,
.src_format = PIPE_FORMAT_R32G32_FLOAT
}
};
void *vertex_elements = pipe->create_vertex_elements_state(pipe,
sizeof(pipe_vertex_elements)/sizeof(pipe_vertex_elements[0]), pipe_vertex_elements);
/* texture... */
struct pipe_resource *tex_resource = createSimpleTexture(fbs->screen, pipe);
struct pipe_sampler_view *sampler_view = pipe->create_sampler_view(pipe, tex_resource, &(struct pipe_sampler_view){
.format = tex_resource->format,
.u.tex.first_level = 0,
.u.tex.last_level = 0,
.swizzle_r = PIPE_SWIZZLE_RED,
.swizzle_g = PIPE_SWIZZLE_GREEN,
.swizzle_b = PIPE_SWIZZLE_BLUE,
.swizzle_a = PIPE_SWIZZLE_ALPHA,
});
void *sampler = pipe->create_sampler_state(pipe, &(struct pipe_sampler_state) {
.wrap_s = PIPE_TEX_WRAP_REPEAT,
.wrap_t = PIPE_TEX_WRAP_REPEAT,
.wrap_r = PIPE_TEX_WRAP_REPEAT,
.min_img_filter = PIPE_TEX_FILTER_LINEAR,
.min_mip_filter = PIPE_TEX_MIPFILTER_NONE,
