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path: root/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_image.cxx
AgeCommit message (Collapse)Author
38 hoursfix: buildHEADmasterMaxim Nikonov
43 hourswipmaxim nikonov
2024-03-15STR 3489: fix alpha blending for X11Matthias Melcher
2023-01-08 Fix "Xrender blurs adjacent images with bilinear scaling" (#633)ManoloFLTK
Many thanks to @wcout for providing this fix. Xrender now draws images in the same way when tiling images or not when FL_RGB_SCALING_BILINEAR is on. This allows to remove static bool Fl_Tiled_Image::drawing_tiled_image() which becomes unused.
2022-08-29Make hybrid Wayland/X11 platform.ManoloFLTK
2022-08-10Fix Fl_Xlib_Graphics_Driver for drawing tiled images.ManoloFLTK
Conflicting demands arise in the implementation of class Fl_Xlib_Graphics_Driver for drawing images with the XRender library : 1) Issue #163 leads to use a bilinear filter to draw-and-scale images. 2) This tends to blur the edges of drawn areas which is bad for tiled images (that is because the edges get alpha values, even for an opaque source image). This commit resolves the conflict adding a means to detect whether the library is busy drawing a tiled image. If so, the bilinear filter is not applied, drawn areas don't have blurred edges, resulting in a nice tiling. With this commit, these test apps perform correctly: - tiled_image is correct at all scaling factor values also when modified to use a depth-3 or a depth-4 Fl_RGB_Image as tile; - unittests - Drawing Images is correct at all scaling factor values; - pixmap_browser scales correctly up and down JPEG and PNG images.
2022-08-09Fix Fl_Xlib_Graphics_Driver for tiled-depth 3 images.ManoloFLTK
Modifying test/tiled_image to make it use a depth-3 image for tiling (rather than an Fl_Pixmap) shows the filter does require to use PictOpOver as the render op in the XRenderComposite call.
2022-08-09Fix Fl_Xlib_Graphics_Driver for RGB image drawing under XQuartz.ManoloFLTK
2022-03-24Remove platform-dependent type Fl_Bitmask (not in documented public API).ManoloFLTK
2021-11-25X11+XRender platform: more accurate drawing of RGB images when GUI is scaled.ManoloFLTK
RGB images are now drawn to a size that exactly fit discretised rectangles when non integral GUI scaling values are used.
2021-11-25Fix X11 platform bug when drawing transparent RGB image without XRender.ManoloFLTK
The bug would appear with test/device and when scaling up to 133% or above: the background of the Porsche pixmap would be truncated. The bug requires to set OPTION_XRENDERER=0 to appear.
2021-05-28New virtual member function Fl_Graphics_Driver::colored_rectf().ManoloFLTK
2021-03-11Unification of scaled coordinate calculations in class ↵ManoloFLTK
Fl_Scalable_Graphics_Driver Most coordinate calculations are done with the new inline function int Fl_Scalable_Graphics_Driver::floor(int coord) that is used by both the Windows and X11 platforms.
2021-03-02X11 platform: Accurately control RGB image drawing with GUI scaling.ManoloFLTK
2021-02-16Fix whitespace errors (no code changes)Albrecht Schlosser
- remove trailing whitespace - convert tabs to spaces (configure.ac)
2020-11-24Fix for issue #163: Improve Xrender scaling qualityManoloFLTK
2020-11-20Fix for issue #159 - continuedManoloFLTK
Changes here concentrate the fix within static function alpha_blend() and thus are visible only when drawing transparent images under X11 platform without Xrender.
2020-11-19Remove compilation warnings about signed/unsigned comparison.ManoloFLTK
2020-11-19Fix for issue #159.ManoloFLTK
2020-11-12Fix for issue #155 - continuedManoloFLTK
The issue lies in details how floating point scaled coordinates are converted to integer values and its impact on the drawing of large SVG images. This commit fixes the X11 platform. The macOS platform is immune because drawing uses floating point coordinates. The Windows platform still needs fixing.
2020-07-30Fix use of an SVG image in Fl_Tiled_Image when display is rescaled.ManoloFLTK
2020-07-28Fix for issue #119. Drawing artefacts for SVG images without XRender.ManoloFLTK
Xlib: Drawing SVG images in scaled mode without XRender has drawing artefacts.
2020-07-06Remove $Id$ tags, update URL's, and moreAlbrecht Schlosser
- remove obsolete svn '$Id$' tags from all source files - update .fl files and generated files accordingly - replace 'http://www.fltk.org' URL's with 'https://...' - replace bug report URL 'str.php' with 'bugs.php' - remove trailing whitespace - fix other whitespace errors flagged by Git - add and/or fix missing or wrong standard headers - convert tabs to spaces in all source files The only relevant code changes are in the fluid/ folder where some .fl files and other source files were used to generate the '$Id' headers and footers.
2020-01-15Fix uninitialized vars in calls to fl_clip_box() (issue #6)Albrecht Schlosser
The main fixes are only to avoid static code analyzer warnings reported in issue #5, but there are also minor bug fixes included. These bug fixes are more of theoretical concerns though. Close #6.
2019-11-01Fix HiDPI support under X11 to read/draw RGB image from/to display.ManoloFLTK
2019-09-11Fix use of Xrender extension with old, 16-bit framebuffers.ManoloFLTK
Subject "Bug in 1.4 Displaying PNG under x64 Kernel x86 app." in fltk.general contains a report by Darren Legge that presents the problem, and a later post stating the code modification does fix the problem.
2018-06-26Move Fl_Screen_Driver.H from FL/ to src/Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12975 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-05-12Remove public member function Fl_Window_Driver *Fl_Window::driver() so class ↵Manolo Gouy
Fl_Window_Driver is not in FLTK public API. This function is replaced by static Fl_Window_Driver* Fl_Window_Driver::(const Fl_Window *win). The purpose is to have class Fl_Window_Driver outside from FLTK ABI. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12915 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-05-06Make member function Fl_Image_Surface::get_offscreen_before_delete() be private.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12904 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-19Fix handling of bg argument of fl_draw_pixmap(char**, int , int , Fl_Color ↵Manolo Gouy
bg) during direct drawing of pixmap image data. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12859 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-19Reorganise access to the value of the GUI scaling factor with public getter ↵Manolo Gouy
and protected, virtual setter member functions. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12858 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-16Remove virtual member Fl_GraphicsDriver::mask_bitmap(char **) and its ↵Manolo Gouy
re-implementations. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12843 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-15Restore building for X11 with HAVE_XRENDER = 0Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12837 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-13Homogenise and simplify the API of Fl_Graphics_Driver::cache(image-type *) ↵Manolo Gouy
virtual member functions. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12833 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-04-12Image drawing: simplify the code organisation to better support ↵Manolo Gouy
Fl_Image::scale(). Graphics drivers now use up to 6 virtual member functions to support Fl_Image drawing in the context of GUI and image rescaling : virtual void draw_pixmap(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy) virtual void draw_bitmap(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy) virtual void draw_rgb(Fl_RGB_Image *rgb, int XP, int YP, int WP, int HP, int cx, int cy) and virtual void draw_fixed(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy) virtual void draw_fixed(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy) virtual void draw_fixed(Fl_RGB_Image *rgb, int XP, int YP, int WP, int HP, int cx, int cy) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12828 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-28Image classes: memorise the width and the height of the cached form of the ↵Manolo Gouy
image to support GUI scaling git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12811 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-22Rename Fl_Image::pixel_w() and pixel_h() to Fl_Image::data_w() and data_h().Manolo Gouy
The docs of class Fl_Image and of Fl_Image::scale() are beefed up. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12784 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-21X11: Remove tentative, uncompiled code to cache RGB images with Xrender ↵Manolo Gouy
Picture instead of Pixmap The speed benefit is not obvious. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12781 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-03-19New member function Fl_Image::scale(int width, int height) to set the FLTK ↵Manolo Gouy
size of an image. Each image has now two sizes implemented as follows: - the pixel size is stored in private members pixel_w_ and pixel_h_ with public accessors pixel_w() and pixel_h() - the FLTK size is stored in private members w_ and h_ and read by w() and h() - when the image is constructed, the two sizes have the same value - the protected w(int) and h(int) member functions set both FLTK and pixel sizes. - the public scale(int, int) member function is essentially nothing but set the FLTK size and don't change the pixel size. - when the image is drawn, its FLTK size determines how big it is drawn, its pixel size determines how much data are available to draw it. FLTK 1.3.4 with FL_ABI_VERSION=10304 contained an equivalent member function but only for the Fl_Shared_Image class. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12776 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2018-01-31Replace FL/x.H with FL/platform.H - step 2 (STR #3435).Albrecht Schlosser
This second step replaces FL/x.H with FL/platform.H in all source files. Dependencies have been adjusted as well. This commit completes the replacement of FL/x.H with FL/platform.H. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12641 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-25Fl_Scalable_Graphics_Driver::draw(Fl_RGB_Image *,...) : change how the ↵Manolo Gouy
current scaling factor is taken into account. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12400 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-08-25X11 and WIN32: slightly change Fl_XXX_Graphics_Driver::cache(Fl_Pixmap*) to ↵Manolo Gouy
use the Fl_Image_Surface object. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12399 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-05-17Introduce HiDPI + rescaling support for the X11 platform (+ partial support ↵Manolo Gouy
for WIN32) Corresponds to STR #3320 1) HiDPI support consists in detecting the adequate scaling factor for the screen on which FLTK maps a window, and scaling all FLTK units by this factor. FLTK tries to detect the correct value of this factor at startup (see more details below). Environment variable FLTK_SCALING_FACTOR can also be used to set this value. 2) Rescaling support consists in changing the scaling factor of all FLTK windows in reply to ctrl/+/-/0/ keystrokes. More details for the various platforms : - X11: Support is very advanced. Some details need still to be improved. Automatic detection of the correct starting value of the scaling factor works well with the gnome desktop. The present code contains no support for this on other desktops. FLTK_SCALING_FACTOR provides a workaround. -WIN32: Support is incomplete at this point, although many test applications have partial or complete HiDPI and scaling support. The current value of the system's scaling factor is correctly detected at application startup. Apps respond to changes of this value in real time. Support needs to define the FLTK_HIDPI_SUPPORT preprocessor variable at compile time. This way, standard builds produce a code with the default WIN32 HiDPI support, that is, where all graphics goes to an internal buffer that gets enlarged by the system and then mapped to the HiDPI display. To experiment with (or develop) the new HiDPI support requires a modified build procedure in which FLTK_HIDPI_SUPPORT is defined at compile time. When the support will be complete, the requirement for the definition of this preprocessor variable will be removed. The present commit contains support for a single scaling factor. Eventually, per-screen scaling factors should be implemented, as done for X11. - MacOS: this commit does not give new HiDPI for this platform. Eventually, window rescaling in reply to command/+/-/0/ is desirable. Per-screen scaling factor makes no sense on this platform because the OS itself takes care of the difference between the resolutions of traditional and retina displays. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12239 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-17Create Fl_Xlib_Graphics_Driver::scale_and_render_pixmap() to draw depth-4 or ↵Manolo Gouy
scaled RGB images using Xrender. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12210 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-17The new Fl_Xlib_Graphics_Driver::draw_scaled() member function must also ↵Manolo Gouy
account for possible translation. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12206 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-17Remove class Fl_Translated_Xlib_Graphics_Driver and move its processing to ↵Manolo Gouy
Fl_Xlib_Graphics_Driver. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12205 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-17Fix the projective transformation matrix used for Xrender-based scaled image ↵Manolo Gouy
drawing. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12201 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2017-03-16Add scaled image drawing to the X11 platform using Xrender.Manolo Gouy
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12200 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-21Fix Fl_Xlib_Graphics_Driver::delete_bitmask() : the pixmap argument is to be ↵Manolo Gouy
deleted by XFreePixmap(). git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12152 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2016-12-07Add static void Fl_Surface_Device::push_current(Fl_Surface_Device ↵Manolo Gouy
*new_current) and pop_current() to set/unset the current drawing surface. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12140 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 08:02:33 +0000