struct image_info *
_EGLImageKHR_get_image_info(GLenum target, EGLImageKHR image)
{
GLuint tex;
GLuint bound_tex;
struct image_info *info;
info = new image_info;
memset(info, 0, sizeof *info);
info->internalformat = GL_RGBA;
info->format = GL_RGBA;
info->type = GL_UNSIGNED_BYTE;
_eglCreateImageKHR_get_image_size(image, info);
_glGenTextures(1, &tex);
_glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint *)&bound_tex);
_glBindTexture(GL_TEXTURE_2D, tex);
_glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
info->size = _glTexImage2D_size(info->format, info->type, info->width, info->height);
info->pixels = malloc(info->size);
get_texture_2d_image(info);
_glBindTexture(GL_TEXTURE_2D, bound_tex);
_glDeleteBuffers(1, &tex);
return info;
}
void gl_DrawScreen() {
GLuint texture;
_glClear( GL_COLOR_BUFFER_BIT );
_glGenTextures(1, &texture);
_glBindTexture( GL_TEXTURE_2D, texture );
if ((VideoMode == 0) || (VideoMode == 2) || (VideoMode == 4)) {
_glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
_glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
}
else {
_glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
_glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
}
_glTexImage2D( GL_TEXTURE_2D, 0, 3, srv_screen->w, srv_screen->h, 0, GL_BGRA, GL_UNSIGNED_BYTE, texture_buffer );
_glBegin( GL_QUADS );
_glTexCoord2i( 0, 0 );
_glVertex2i( 0, 0 );
_glTexCoord2i( 1, 0 );
_glVertex2i( screen_width, 0 );
_glTexCoord2i( 1, 1 );
_glVertex2i( screen_width, screen_height );
_glTexCoord2i( 0, 1);
_glVertex2i( 0, screen_height );
_glEnd();
_glDeleteTextures(1, &texture );
}
static void
_eglCreateImageKHR_get_image_size(EGLImageKHR image, image_info *info)
{
GLuint fbo = 0;
GLuint orig_fbo = 0;
GLuint texture = 0;
GLuint orig_texture;
GLenum status;
_glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint *)&orig_fbo);
_glGenFramebuffers(1, &fbo);
_glBindFramebuffer(GL_FRAMEBUFFER, fbo);
_glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint *)&orig_texture);
_glGenTextures(1, &texture);
_glBindTexture(GL_TEXTURE_2D, texture);
_glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
info->width = 0;
info->height = 0;
_glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, texture, 0);
status = _glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status == GL_FRAMEBUFFER_COMPLETE) {
if (detect_size(&info->width, &info->height) != 0)
os::log("%s: can't detect image size\n", __func__);
} else {
os::log("%s: error: %x\n", __func__, status);
}
/* Don't leak errors to the traced application. */
(void)_glGetError();
_glBindTexture(GL_TEXTURE_2D, orig_texture);
_glDeleteTextures(1, &texture);
_glBindFramebuffer(GL_FRAMEBUFFER, orig_fbo);
_glDeleteFramebuffers(1, &fbo);
}
