X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=futatabi%2Fjpeg_frame_view.cpp;h=6ab19482fb93772956036c19175b6ecef36262e3;hb=7b2079d4e22b1766eb8415df613ef3af10becded;hp=85c708d4d20f9aff8f137d0d3573b489d9a368f5;hpb=adc0df09f7a9dc88a3c0dbad47a21a805e728862;p=nageru
diff --git a/futatabi/jpeg_frame_view.cpp b/futatabi/jpeg_frame_view.cpp
index 85c708d..6ab1948 100644
--- a/futatabi/jpeg_frame_view.cpp
+++ b/futatabi/jpeg_frame_view.cpp
@@ -112,6 +112,8 @@ shared_ptr decode_jpeg(const string &jpeg)
}
JPEGDestroyer destroy_dinfo(&dinfo);
+ jpeg_save_markers(&dinfo, JPEG_APP0 + 1, 0xFFFF);
+
if (!error_mgr.run([&dinfo, &jpeg] {
jpeg_mem_src(&dinfo, reinterpret_cast(jpeg.data()), jpeg.size());
jpeg_read_header(&dinfo, true);
@@ -119,8 +121,6 @@ shared_ptr decode_jpeg(const string &jpeg)
return get_black_frame();
}
- jpeg_save_markers(&dinfo, JPEG_APP0 + 1, 0xFFFF);
-
if (dinfo.num_components != 3) {
fprintf(stderr, "Not a color JPEG. (%d components, Y=%dx%d, Cb=%dx%d, Cr=%dx%d)\n",
dinfo.num_components,
@@ -163,13 +163,15 @@ shared_ptr decode_jpeg(const string &jpeg)
unsigned chroma_width_blocks = mcu_width_blocks * dinfo.comp_info[1].h_samp_factor;
PBO pbo = global_pbo_pool->alloc_pbo();
+ const size_t chroma_width = dinfo.image_width / frame->chroma_subsampling_x;
+ const size_t chroma_height = dinfo.image_height / frame->chroma_subsampling_y;
size_t cb_offset = dinfo.image_width * dinfo.image_height;
- size_t cr_offset = cb_offset + (dinfo.image_width / 2) * dinfo.image_height;
+ size_t cr_offset = cb_offset + chroma_width * chroma_height;
uint8_t *y_pix = pbo.ptr;
uint8_t *cb_pix = pbo.ptr + cb_offset;
uint8_t *cr_pix = pbo.ptr + cr_offset;
unsigned pitch_y = luma_width_blocks * DCTSIZE;
- unsigned pitch_chroma = chroma_width_blocks * DCTSIZE * 2;
+ unsigned pitch_chroma = chroma_width_blocks * DCTSIZE;
if (dinfo.marker_list != nullptr &&
dinfo.marker_list->marker == JPEG_APP0 + 1 &&
@@ -201,13 +203,14 @@ shared_ptr decode_jpeg(const string &jpeg)
// FIXME: what about resolutions that are not divisible by the block factor?
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo.pbo);
frame->y = create_texture_2d(frame->width, frame->height, GL_R8, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(0));
- frame->cb = create_texture_2d(frame->width / 2, frame->height, GL_R8, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(cb_offset));
- frame->cr = create_texture_2d(frame->width / 2, frame->height, GL_R8, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(cr_offset));
+ frame->cb = create_texture_2d(chroma_width, chroma_height, GL_R8, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(cb_offset));
+ frame->cr = create_texture_2d(chroma_width, chroma_height, GL_R8, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(cr_offset));
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
- glFlushMappedNamedBufferRange(pbo.pbo, 0, dinfo.image_width * dinfo.image_height * 2);
+ glFlushMappedNamedBufferRange(pbo.pbo, 0, dinfo.image_width * dinfo.image_height + chroma_width * chroma_height * 2);
glMemoryBarrier(GL_PIXEL_BUFFER_BARRIER_BIT);
pbo.upload_done = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
+ glFlush();
frame->uploaded_ui_thread = pbo.upload_done;
frame->uploaded_interpolation = pbo.upload_done;
global_pbo_pool->release_pbo(move(pbo));
@@ -409,6 +412,7 @@ void JPEGFrameView::setFrame(shared_ptr frame)
lock_guard lock(cache_mu);
PendingDecode decode;
decode.frame = std::move(frame);
+ decode.fade_alpha = 0.0f;
pending_decodes.push_back(decode);
any_pending_decodes.notify_all();
}