int main(int argc, char* argv[])
{
// 共有する先と名前とサイズをあわせておく
SharedCvMat shared_img("capture_image", 640, 480, 3, false);
cv::Mat image;
while(true) {
// 共有メモリからイメージをダウンロード
shared_img.download(image);
cv::imshow("shared image", image);
int c = cv::waitKey(33);
if (c == 27) break;
}
return 0;
}
int main(int argc, char* argv[])
{
cv::Mat img(cv::Size(640, 480), CV_8UC3);
SharedImage shared_img("testname", 640, 480);
while (true) {
draw(img);
shared_img.upload(img);
cv::Mat resized_img;
cv::resize(img, resized_img, cv::Size(320, 240));
cv::imshow("SharedImage_OpenCV", resized_img);
int c = cv::waitKey(1);
if (c == 27) break;
}
cv::destroyAllWindows();
return 0;
}
//-----------------------------------------------------------------//
bool jpeg_io::load(utils::file_io& fin, const std::string& opt)
{
// とりあえず、ヘッダーの検査
if(probe(fin) == false) {
return false;
}
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr errmgr;
// エラーのハンドリング
cinfo.err = jpeg_std_error(&errmgr);
errmgr.error_exit = error_exit_task;
// 構造体の初期設定
jpeg_create_decompress(&cinfo);
// file_io クラス設定
fio_jpeg_file_io_src(&cinfo, &fin);
// ファイルの情報ヘッダの読込み
error_code_ = 0;
jpeg_read_header(&cinfo, TRUE);
if(error_code_) {
std::cout << "JPEG decode error: 'header'(" << error_code_ << ")" << std::endl;
jpeg_destroy_decompress(&cinfo);
return false;
}
// 解凍の開始
error_code_ = 0;
jpeg_start_decompress(&cinfo);
if(error_code_) {
std::cout << "JPEG decode error: 'decompress'(" << error_code_ << ")" << std::endl;
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
return false;
}
/// cinfo.in_color_space
if(cinfo.output_components == 1) {
img_ = shared_img(new img_rgba8);
img_->create(vtx::spos(cinfo.image_width, cinfo.image_height), true);
} else if(cinfo.output_components == 3) {
img_ = shared_img(new img_rgba8);
img_->create(vtx::spos(cinfo.image_width, cinfo.image_height), true);
} else if(cinfo.output_components == 4) {
img_ = shared_img(new img_rgba8);
img_->create(vtx::spos(cinfo.image_width, cinfo.image_height), true);
} else {
img_ = 0;
std::cout << "JPEG decode error: Can not support components: " <<
static_cast<int>(cinfo.output_components) << std::endl;
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
return false;
}
prgl_ref_ = cinfo.image_height;
prgl_pos_ = 0;
unsigned char* line = new unsigned char[cinfo.output_width * cinfo.output_components];
unsigned char* lines[1];
lines[0] = &line[0];
vtx::spos pos;
for(pos.y = 0; pos.y < cinfo.image_height; ++pos.y) {
jpeg_read_scanlines(&cinfo, (JSAMPLE**)lines, 1);
unsigned char* p = &line[0];
if(cinfo.output_components == 4) {
for(pos.x = 0; pos.x < cinfo.image_width; ++pos.x) {
img::rgba8 c;
c.r = *p++;
c.g = *p++;
c.b = *p++;
c.a = *p++;
img_->put_pixel(pos, c);
}
} else if(cinfo.output_components == 3) {
for(pos.x = 0; pos.x < cinfo.image_width; ++pos.x) {
img::rgba8 c;
c.r = *p++;
c.g = *p++;
c.b = *p++;
c.a = 255;
img_->put_pixel(pos, c);
}
} else if(cinfo.output_components == 1) {
for(pos.x = 0; pos.x < cinfo.image_width; ++pos.x) {
img::rgba8 c;
c.b = c.g = c.r = *p++;
c.a = 255;
img_->put_pixel(pos, c);
}
}
prgl_pos_ = pos.y;
}
delete[] line;
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
fio_src_ptr src = (fio_src_ptr)cinfo.src;
if(src->err_empty) {
return false;
} else {
return true;
}
}
