static int init_gl()
{
EGLint major, minor, n;
GLuint vertex_shader, fragment_shader;
GLint ret;
program = make_program_object("src/gles/shaders/cube.vert",
"src/gles/shaders/cube.frag");
glUseProgram(program);
glBindAttribLocation(program, 0, "in_position");
glBindAttribLocation(program, 1, "in_normal");
glBindAttribLocation(program, 2, "in_color");
glBindAttribLocation(program, 3, "in_texuv");
modelviewmatrix =
glGetUniformLocation(program, "modelviewMatrix");
modelviewprojectionmatrix =
glGetUniformLocation(program, "modelviewprojectionMatrix");
normalmatrix =
glGetUniformLocation(program, "normalMatrix");
texture_rgba_loc =
glGetUniformLocation(program, "texture");
uniform_texture =
glGetUniformLocation(program, "uniform_texture");
static struct pngload_attribute png_attr;
load_png_image("utils/png-test.png", &png_attr);
texture_id_rgba = gen_texture_from_data(
png_attr.buf, png_attr.width, png_attr.height,
png_color_type_GL(png_attr.color_type));
// Texture.
/* glGenTextures(1, &texture_name); */
/* glBindTexture(GL_TEXTURE_2D, texture_name); */
// Bind the base texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture_id_rgba);
// Set the base sampler to texture unit to 0
glUniform1i(texture_rgba_loc, 0);
if (glGetError() != GL_NO_ERROR) {
ERROR("glBindTexture!");
return -1;
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glUniform1i(uniform_texture, 0);
glViewport(0, 0, 512, 512);
return 0;
}
static int init_gl()
{
EGLint major, minor, n;
GLuint vertex_shader, fragment_shader;
GLint ret;
program = make_program_object("src/gles/shaders/cube3.vert",
"src/gles/shaders/cube3.frag");
glUseProgram(program);
glBindAttribLocation(program, 0, "in_position");
glBindAttribLocation(program, 1, "in_normal");
glBindAttribLocation(program, 2, "in_color");
modelviewmatrix =
glGetUniformLocation(program, "modelviewMatrix");
modelviewprojectionmatrix =
glGetUniformLocation(program, "modelviewprojectionMatrix");
normalmatrix =
glGetUniformLocation(program, "normalMatrix");
glViewport(0, 0, 512, 512);
glEnable(GL_CULL_FACE);
static struct pngload_attribute png_attr;
load_png_image("utils/blender2opengles/cube.png", &png_attr);
GLuint texture = gen_texture_from_data(
png_attr.buf, png_attr.width, png_attr.height,
png_color_type_GL(png_attr.color_type));
// Bind the base texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
GLint texture_loc
= glGetUniformLocation(program, "s_texture_rgba");
// Set the base sampler to texture unit to 0
glUniform1i(texture_loc, 0);
return 0;
}
void FileImage::load_file()
{
FSFile fp(filename.c_str(), "r");
if (!fp.is_open()) {
printf("Could not open image \"%s\"\n", filename.c_str());
return;
}
int w, h, channels;
image = load_png_image(fp, fp.get_size(), &w, &h, &channels);
width = w;
height = h;
fp.close();
if (image == NULL) {
printf("Could not load image \"%s\"\n", filename.c_str());
return;
}
if (!transparent.is_enabled())
return;
#ifndef CHOWDREN_FORCE_TRANSPARENT
if (channels != 1 && channels != 3)
return;
#endif
for (int i = 0; i < width * height; i++) {
unsigned char * c = &image[i*4];
if (c[0] != transparent.r || c[1] != transparent.g ||
c[2] != transparent.b)
continue;
c[3] = 0;
}
}
inline unsigned char * load_image(FSFile & image_file, int size,
int * w, int * h, int * channels)
{
return load_png_image(image_file, size, w, h, channels);
}
int t_main()
{
struct pngload_attribute png_attr;
load_png_image("png-test.png", &png_attr);
}
