diff options
Diffstat (limited to 'indra/newview/llviewerwindow.cpp')
| -rw-r--r-- | indra/newview/llviewerwindow.cpp | 154 |
1 files changed, 76 insertions, 78 deletions
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp index 4305349ea2..e020296842 100644 --- a/indra/newview/llviewerwindow.cpp +++ b/indra/newview/llviewerwindow.cpp @@ -3968,7 +3968,9 @@ BOOL LLViewerWindow::thumbnailSnapshot(LLImageRaw *raw, S32 preview_width, S32 p return rawSnapshot(raw, preview_width, preview_height, FALSE, FALSE, show_ui, do_rebuild, type); } -// Saves the image from the screen to the specified filename and path. +// Saves the image from the screen to a raw image +// Since the required size might be bigger than the available screen, this method rerenders the scene in parts (called subimages) and copy +// the results over to the final raw image. BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_height, BOOL keep_window_aspect, BOOL is_texture, BOOL show_ui, BOOL do_rebuild, ESnapshotType type, S32 max_size) { @@ -3986,8 +3988,6 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei // Hide all the UI widgets first and draw a frame BOOL prev_draw_ui = gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI) ? TRUE : FALSE; - show_ui = show_ui ? TRUE : FALSE; - if ( prev_draw_ui != show_ui) { LLPipeline::toggleRenderDebugFeature((void*)LLPipeline::RENDER_DEBUG_FEATURE_UI); @@ -4007,55 +4007,49 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei // from window LLRect window_rect = show_ui ? getWindowRectRaw() : getWorldViewRectRaw(); - S32 snapshot_width = window_rect.getWidth(); + S32 snapshot_width = window_rect.getWidth(); S32 snapshot_height = window_rect.getHeight(); // SNAPSHOT - S32 window_width = snapshot_width; + S32 window_width = snapshot_width; S32 window_height = snapshot_height; + // Note: Scaling of the UI is currently *not* supported so we limit the output size if UI is requested if (show_ui) { - image_width = llmin(image_width, window_width); + // If the user wants the UI, limit the output size to the available screen size + image_width = llmin(image_width, window_width); image_height = llmin(image_height, window_height); } F32 scale_factor = 1.0f ; - if(!keep_window_aspect) //image cropping - { + if (!keep_window_aspect || (image_width > window_width) || (image_height > window_height)) + { + // if image cropping or need to enlarge the scene, compute a scale_factor F32 ratio = llmin( (F32)window_width / image_width , (F32)window_height / image_height) ; - snapshot_width = (S32)(ratio * image_width) ; + snapshot_width = (S32)(ratio * image_width) ; snapshot_height = (S32)(ratio * image_height) ; scale_factor = llmax(1.0f, 1.0f / ratio) ; } - else //the scene(window) proportion needs to be maintained. - { - if(image_width > window_width || image_height > window_height) //need to enlarge the scene - { - F32 ratio = llmin( (F32)window_width / image_width , (F32)window_height / image_height) ; - snapshot_width = (S32)(ratio * image_width) ; - snapshot_height = (S32)(ratio * image_height) ; - scale_factor = llmax(1.0f, 1.0f / ratio) ; - } - } if (show_ui && scale_factor > 1.f) { + // Note: we should never get there... llwarns << "over scaling UI not supported." << llendl; } - S32 buffer_x_offset = llfloor(((window_width - snapshot_width) * scale_factor) / 2.f); + S32 buffer_x_offset = llfloor(((window_width - snapshot_width) * scale_factor) / 2.f); S32 buffer_y_offset = llfloor(((window_height - snapshot_height) * scale_factor) / 2.f); - S32 image_buffer_x = llfloor(snapshot_width*scale_factor) ; - S32 image_buffer_y = llfloor(snapshot_height *scale_factor) ; + S32 image_buffer_x = llfloor(snapshot_width * scale_factor) ; + S32 image_buffer_y = llfloor(snapshot_height * scale_factor) ; - if(image_buffer_x > max_size || image_buffer_y > max_size) //boundary check to avoid memory overflow + if ((image_buffer_x > max_size) || (image_buffer_y > max_size)) // boundary check to avoid memory overflow { scale_factor *= llmin((F32)max_size / image_buffer_x, (F32)max_size / image_buffer_y) ; - image_buffer_x = llfloor(snapshot_width*scale_factor) ; - image_buffer_y = llfloor(snapshot_height *scale_factor) ; + image_buffer_x = llfloor(snapshot_width * scale_factor) ; + image_buffer_y = llfloor(snapshot_height * scale_factor) ; } - if(image_buffer_x > 0 && image_buffer_y > 0) + if ((image_buffer_x > 0) && (image_buffer_y > 0)) { raw->resize(image_buffer_x, image_buffer_y, 3); } @@ -4063,7 +4057,7 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei { return FALSE ; } - if(raw->isBufferInvalid()) + if (raw->isBufferInvalid()) { return FALSE ; } @@ -4071,6 +4065,7 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei BOOL high_res = scale_factor >= 2.f; // Font scaling is slow, only do so if rez is much higher if (high_res && show_ui) { + // Note: we should never get there... llwarns << "High res UI snapshot not supported. " << llendl; /*send_agent_pause(); //rescale fonts @@ -4085,6 +4080,8 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei gObjectList.generatePickList(*LLViewerCamera::getInstance()); + // Subimages are in fact partial rendering of the final view. This happens when the final view is bigger than the screen. + // In most common cases, scale_factor is 1 and there's no more than 1 iteration on x and y for (int subimage_y = 0; subimage_y < scale_factor; ++subimage_y) { S32 subimage_y_offset = llclamp(buffer_y_offset - (subimage_y * window_height), 0, window_height);; @@ -4098,69 +4095,70 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei gDisplaySwapBuffers = FALSE; gDepthDirty = TRUE; - const U32 subfield = subimage_x+(subimage_y*llceil(scale_factor)); - - if (LLPipeline::sRenderDeferred) - { - display(do_rebuild, scale_factor, subfield, TRUE); - } - else - { - display(do_rebuild, scale_factor, subfield, TRUE); - // Required for showing the GUI in snapshots and performing bloom composite overlay - // Call even if show_ui is FALSE - render_ui(scale_factor, subfield); - } - S32 subimage_x_offset = llclamp(buffer_x_offset - (subimage_x * window_width), 0, window_width); // handle fractional rows U32 read_width = llmax(0, (window_width - subimage_x_offset) - llmax(0, (window_width * (subimage_x + 1)) - (buffer_x_offset + raw->getWidth()))); - for(U32 out_y = 0; out_y < read_height ; out_y++) + + // Skip rendering and sampling altogether if either width or height is degenerated to 0 (common in cropping cases) + if (read_width && read_height) { - S32 output_buffer_offset = ( - (out_y * (raw->getWidth())) // ...plus iterated y... - + (window_width * subimage_x) // ...plus subimage start in x... - + (raw->getWidth() * window_height * subimage_y) // ...plus subimage start in y... - - output_buffer_offset_x // ...minus buffer padding x... - - (output_buffer_offset_y * (raw->getWidth())) // ...minus buffer padding y... - ) * raw->getComponents(); + const U32 subfield = subimage_x+(subimage_y*llceil(scale_factor)); + display(do_rebuild, scale_factor, subfield, TRUE); - // Ping the wathdog thread every 100 lines to keep us alive (arbitrary number, feel free to change) - if (out_y % 100 == 0) + if (!LLPipeline::sRenderDeferred) { - LLAppViewer::instance()->pingMainloopTimeout("LLViewerWindow::rawSnapshot"); + // Required for showing the GUI in snapshots and performing bloom composite overlay + // Call even if show_ui is FALSE + render_ui(scale_factor, subfield); } - if (type == SNAPSHOT_TYPE_COLOR) + for (U32 out_y = 0; out_y < read_height ; out_y++) { - glReadPixels( - subimage_x_offset, out_y + subimage_y_offset, - read_width, 1, - GL_RGB, GL_UNSIGNED_BYTE, - raw->getData() + output_buffer_offset - ); - } - else // SNAPSHOT_TYPE_DEPTH - { - LLPointer<LLImageRaw> depth_line_buffer = new LLImageRaw(read_width, 1, sizeof(GL_FLOAT)); // need to store floating point values - glReadPixels( - subimage_x_offset, out_y + subimage_y_offset, - read_width, 1, - GL_DEPTH_COMPONENT, GL_FLOAT, - depth_line_buffer->getData()// current output pixel is beginning of buffer... - ); - - for (S32 i = 0; i < (S32)read_width; i++) + S32 output_buffer_offset = ( + (out_y * (raw->getWidth())) // ...plus iterated y... + + (window_width * subimage_x) // ...plus subimage start in x... + + (raw->getWidth() * window_height * subimage_y) // ...plus subimage start in y... + - output_buffer_offset_x // ...minus buffer padding x... + - (output_buffer_offset_y * (raw->getWidth())) // ...minus buffer padding y... + ) * raw->getComponents(); + + // Ping the watchdog thread every 100 lines to keep us alive (arbitrary number, feel free to change) + if (out_y % 100 == 0) { - F32 depth_float = *(F32*)(depth_line_buffer->getData() + (i * sizeof(F32))); - - F32 linear_depth_float = 1.f / (depth_conversion_factor_1 - (depth_float * depth_conversion_factor_2)); - U8 depth_byte = F32_to_U8(linear_depth_float, LLViewerCamera::getInstance()->getNear(), LLViewerCamera::getInstance()->getFar()); - //write converted scanline out to result image - for(S32 j = 0; j < raw->getComponents(); j++) + LLAppViewer::instance()->pingMainloopTimeout("LLViewerWindow::rawSnapshot"); + } + + if (type == SNAPSHOT_TYPE_COLOR) + { + glReadPixels( + subimage_x_offset, out_y + subimage_y_offset, + read_width, 1, + GL_RGB, GL_UNSIGNED_BYTE, + raw->getData() + output_buffer_offset + ); + } + else // SNAPSHOT_TYPE_DEPTH + { + LLPointer<LLImageRaw> depth_line_buffer = new LLImageRaw(read_width, 1, sizeof(GL_FLOAT)); // need to store floating point values + glReadPixels( + subimage_x_offset, out_y + subimage_y_offset, + read_width, 1, + GL_DEPTH_COMPONENT, GL_FLOAT, + depth_line_buffer->getData()// current output pixel is beginning of buffer... + ); + + for (S32 i = 0; i < (S32)read_width; i++) { - *(raw->getData() + output_buffer_offset + (i * raw->getComponents()) + j) = depth_byte; + F32 depth_float = *(F32*)(depth_line_buffer->getData() + (i * sizeof(F32))); + + F32 linear_depth_float = 1.f / (depth_conversion_factor_1 - (depth_float * depth_conversion_factor_2)); + U8 depth_byte = F32_to_U8(linear_depth_float, LLViewerCamera::getInstance()->getNear(), LLViewerCamera::getInstance()->getFar()); + // write converted scanline out to result image + for (S32 j = 0; j < raw->getComponents(); j++) + { + *(raw->getData() + output_buffer_offset + (i * raw->getComponents()) + j) = depth_byte; + } } } } |