--- /dev/null
+Evas 1.7.99
+
+******************************************************************************
+
+ FOR ANY ISSUES PLEASE EMAIL:
+ enlightenment-devel@lists.sourceforge.net
+
+******************************************************************************
+
+Requirements:
+-------------
+
+Must:
+ libc
+ eina (1.1.0 or better)
+ freetype (2.1.9 or better)
+
+Recommended:
+ libX11 + libXext + libXrender
+ OpenGL2.0 or OpenGL-ES 2.0
+ fontconfig
+ libpng
+ libjpeg (6.0 or better)
+ eet (1.5.0 or better)
+ fribidi
+ harfbuzz
+ liblinebreak
+
+Optional:
+ XCB SDL OpenGL esvg libtiff libgif edb DirectFB evas_generic_loaders
+
+Evas is a clean display canvas API for several target display systems
+that can draw anti-aliased text, smooth super and sub-sampled scaled
+images, alpha-blend objects much and more.
+
+Evas is designed to be portable to different display systems. Evas uses very
+little RAM too (try profiling it in memprof if you want to
+know) most of the ram allocated, if you look, is for freetype itself,
+image pixel data, and font glyph data. You can't really avoid this, though
+evas tries to share this data as much as possible and not duplicate where it
+can. Feel free to point me at sensible memory optimizations etc. though :) I
+want this baby to be lean, mean tiny, fast and do everything from your
+massive multi-cpu desktop with gobs of ram and disk to a tiny watch.
+
+Evas also supports full UTF-8 for text object strings, thus allowing for
+full internationalized text strings (if your font gives you all the
+characters). I've tested with quite a few fonts and it works quite well.
+Though this requires a unicode compatible font with unicode charmap support
+(cyberbit is quite good actually as a font). For now Evas draws the fonts
+only from left to right, so arabic, hebrew etc. won't display quite right,
+direction-wise, but the characters do.
+
+------------------------------------------------------------------------------
+COMPILING AND INSTALLING:
+
+ ./configure
+ make
+(as root unless you are installing in your users directories):
+ make install
+
+if you want to know what options to enable
+./configure --help
+
+Evas's rendering code assumes a decently optimizing compiler. For
+example gcc with -O2 -march=nocona for example (compile for core2 duo
+x86 or better). You may choose not to compile for a very modern
+architecture, and Evas still has MMX/SSE, NEON and other hand-crafted
+assembly, but not for everything, so make use of your compiler
+optimizing as much as possible. At least use -O2 or equivalents.
+
+Notes:
+ the small dither mask is faster on the ipaq, but is not as good looking. on
+ desktop machines it makes no speed difference so only use
+ --enable-small-dither-mask if you really need the speed for low depth
+ you need at least 1 image loader if you want to load images.
+ gcc 3.0.x on solaris screws up the jpeg code so erroring out doesn't work.
+ use gcc 3.2 on solaris.
+
+notes on features (--enable-FEATURE enables it and --disable-FEATURE
+disables it, some being enabled or disabled by default or if
+dependencies are found):
+
+Also the wayland support (EGL and SHM engines) is considered experimental as
+wayland itself is still unstable and liable to change core protocol.
+If you use this api, it is possible it will break in future, until this
+notice is removed.
+
+------------------------------------------------------------------------------
+SCALING:
+--enable-scale-sample
+
+this enables the sampling scaler code. this is the fastest image scaling
+code, but also the lowest quality. when scaling up pixels will become blocky
+and when scaling down you will see shimmering/aliasing artifacts. this is a
+speed vs. quality tradeoff
+
+
+--enable-scale-smooth
+
+this is the nicest looking scaler that is not that much slower than
+tri-linear, but it looks really good.
+
+
+------------------------------------------------------------------------------
+DITHERING:
+--enable-small-dither-mask
+
+this uses a 4x4 dither mask instead of 128x128. on desktop boxes these days
+(pentium, pentium2, amd etc.) the speed difference is not really measurable,
+but the quality of the 128x128 dither mask is quite a lot better. patterns
+of dithering are much less noticeable, so it is recommended to not enable
+this unless you are struggling for speed. the compaq ipaq for example shows
+a slowdown with this large a dither mask so enabling a small dither mask is
+recommended unless you really want to forgo the speed.
+
+
+--enable-line-dither-mask
+
+this is a faster alternative to the small or large dither masks above.
+this dithers only on an alternating-line basis. this only provides 1
+intermediate "dither" level whose odd and even pixels alternate
+between the 2 closest colors available, but it is very fast. almost as
+fast as no dithering. quality though will not be as good as small or
+default "large" dither masks.
+
+
+--enable-no-dither-mask
+
+this disables dithering entirely. this is the fastest option, but the
+lowest quality. not suggested in general unless you are really in need
+of an extra few percent speed and are willing to have fairly awful
+quality. but in general this is the standard rendering for most
+"realtime graphics" if it has to drop to lower bit-depths, so it's
+not anything unusual. just in the evas world the quality is considered
+poor enough to be discouraged as evas's internal rendering is so much
+higher quality.
+
+
+------------------------------------------------------------------------------
+ENGINES:
+
+All engines can be compiled statically inside libevas.so in order to
+reduce runtime time at dynamically loaded modules. All you have to do
+is to enable your chosen modules with "=static" suffix. If they depend
+on software_generic (most do), you need that as well. Examples:
+
+ ./configure --enable-static-software-generic --enable-software-xlib=static
+
+
+--enable-software-xlib[=static]
+
+this enables the software x11 rendering engine that renders to X drawable
+targets using highly optimized software routines. there is no hardware
+assist here. this engine requires X11 to be installed to build (and run).
+This is a good generic engine that is fast and can run in X for good
+development and debugging purposes.
+
+
+--enable-software-xcb[=static]
+
+this enable the software xcb rendering engine. It allows the same
+features than the software xlib engine. It require the XCB and XCBImage
+libraries. For the test programs, XCBICCCM is also needed. It is not
+recommended to use this as it's experimental and will create problems
+with both ecore_evas and enlightenment itself.
+
+
+--enable-fb[=static]
+
+this is the software framebuffer driving engine. this uses the linux
+framebuffer device (/dev/fb{X}) and will currently just inherit the current
+framebuffer settings on the fb device and use them to run in. this engine is
+almost fully functional except for the fb management itself. this engine is
+specifically geared towards people writing minimalist display systems for
+embedded devices such as the ipaq, zaurus, etc. it also scales up to high-res
+desktop systems as
+well.
+
+
+--enable-directfb[=static]
+
+this is the direct fb engine that uses direcftb (http://www.directfb.org) on
+linux to access the framebuffer with (or maybe without) acceleration. for
+people making set-top boxes or just wanting an alternative to X this is
+really good. it may also be useful for embedded devices supported by
+directfb that offer acceleration (otherwise the fb driver will likely be
+faster). as such this engine is in relative disrepair and is not
+maintained. use with great care.
+
+
+--enable-buffer[=static]
+
+this enables the memory buffer rendering engine. this engine renders
+to a region of memory that is considered to be a 32bit ARGB buffer of
+pixels, allowing the results of rendering to be directly read out or
+used again for other purposes.
+
+
+--enable-gl-x11[=static]
+
+this is the opengl engine. it is intended for an x11 target (via xlib)
+rather than framebuffer (even if you use EGL, the EGL flavor is
+expected to be an x11 one). it is a full opengl based rendering engine
+with all rendering implemented as a texture + triangle pipeline and
+more. it also supports opengl-es2.0 and is reliant on modern opengl2.0+
+shader support. this engine also supports the native surface api for
+adopting pixmaps directly to textures for compositing.
+
+some environment variables that control the opengl engine are as
+follows:
+
+export EVAS_GL_INFO=1
+ set this environment variable to enable output of opengl information
+such as vendor, version, extensions, maximum texture size etc. unset
+the environment variable to make the output quiet again.
+
+export EVAS_GL_MEMINFO=1
+ set this environment variable to enable dumping of debug output
+whenever textures are allocated or freed, giving the number of
+textures of each time and how many kb worth of pixel data are
+allocated for the textures. unset it again to stop this dumping of
+information.
+
+export EVAS_GL_WIN_RESURF=1
+ set this environment variable to enable the gl engine to try and
+ddelete the window surface, if it can, when told to "dump resources"
+to save memory, and re-allocate it when needed (when rendering
+occurs). unset it to not have this behavior.
+
+export EVAS_GL_CUTOUT_MAX=N
+ set this environment variable to the maximum number of rectangles
+applied to a rendering of a primitive that "cut away" parts of that
+primitive to render to avoid overdraw. default is 512. unset it to use
+defaults, otherwise set N to the max value desired or to -1 for
+"unlimited rectangles".
+
+export EVAS_GL_PIPES_MAX=N
+ set the maximum number of parallel pending pipelines to N. the
+default number is 32 (except on tegra2 where is it 1). evas keeps 1 (or more)
+pipelines of gl draw commands in parallel at any time, to allow for merging
+of non-overlapping draw commands to avoid texture binding and context
+changes which allows for more streamlining of the draw arrays that are
+filled and passed to gl per frame. the more pipelines exist, the more
+chance evas has of merging draw commands that have the same modes,
+texture source etc., but the more overhead there is in finding a
+pipeline slot for the draw command to merge into, so there is a
+compromise here between spare cpu resources and gpu pipelining. unset
+this environment variable to let evas use it's default value.
+
+export EVAS_GL_ATLAS_ALLOC_SIZE=N
+ set the size (width in pixels) of the evas texture atlas strips that
+are allocated. the default is 1024. unset this to let evas use its
+default. if this value is larger than the maximum texture size, then it
+is limited to that maximum size internally anyway. evas tries to
+store images together in "atlases". these are large single textures
+that contain multiple images within the same texture. to do this evas
+allocates a "wide strip" of pixels (that is a certain height) and then
+tries to fit all images loaded that need textures into an existing
+atlas texture before allocating a new one. evas tries a best fit
+policy to avoid too much wasting of texture memory. texture atlas
+textures are always allocated to be EVAS_GL_ATLAS_ALLOC_SIZE width,
+and a multiple of EVAS_GL_ATLAS_SLOT_SIZE pixels high (if possible -
+power of 2 limits are enforced if required).
+
+export EVAS_GL_ATLAS_ALLOC_ALPHA_SIZE=N
+ this is exactly the same as EVAS_GL_ATLAS_ALLOC_SIZE, but for
+"alpha" textures (texture used for font glyph data). it works exactly
+the same way as for images, but per font glyph being put in an atlas
+slot. the default value for this is 4096.
+
+export EVAS_GL_ATLAS_MAX_W=N
+ set this to limit the maximum image size (width) that will be
+allowed to go into a texture atlas. if an image exceeds this size, it
+gets allocated its own separate individual texture (this is to help
+minimize fragmentation). the default value for this is 512. if you set
+this environment variable it will be overridden by the value it is set
+to. the maximum value possible here is 512. you may set it to a
+smaller value.
+
+export EVAS_GL_ATLAS_MAX_H=N
+ this is the same as EVAS_GL_ATLAS_MAX_W, but sets the maximum height
+of an image that is allowed into an atlas texture.
+
+export EVAS_GL_ATLAS_SLOT_SIZE=N
+ this sets the height granularity for atlas strips. the default (and
+minimum) value is 16. this means texture atlas strips are always a
+multiple of 16 pixels high (16, 32, 48, 64, etc...). this allows you
+to change the granularity to another value to avoid having more
+textures allocated or try and consolidate allocations into fewer atlas
+strips etc.
+
+export EVAS_GL_NO_MAP_IMAGE_SEC=1
+ if this environment variable is set, it disabled support for the SEC
+map image extension (a zero copy direct-texture access extension that
+removes texture upload overhead). if you have problems with dynamic
+evas images, and this is detected by evas (see EVAS_GL_INFO above to
+find out if its detected), then setting this will allow it to be
+forcibly disabled. unset it to allow auto-detection to keep working.
+
+
+--enable-gl-flavor-gles
+
+this enables the opengl-es 2.0 flavor of opengl (as opposed to desktop
+opengl) when building evas's gl-x11 engine above. this will be needed
+if you are building evas for opengl-es 2.0 enabled embedded devices.
+evas works on several opengl-es 2.0 compliant gpu's and gains more
+testing and optimization regularly. it is also capable of
+texture-from-pixmap support in opengl-es like it is in desktop opengl.
+
+
+--enable-gles-variety-sgx
+
+this tells evas that you are building the gl-es engine for a
+shader-compiler "sgx style" opengl-es 2.0 implementation. this is
+where the shader compiler is provided at runtime and can accept the
+shader glsl source and work
+
+
+--enable-gles-variety-s3c6410
+
+this tells evas that you have an s3c6410 style opengl-es
+implementation that has an offline shader compiler and that needs
+pre-compiled shader binaries (provided with evas). this has not been
+tested in quite a while as the drivers and environment for this system
+have gone missing
+
+
+--enable-software-gdi[=static]
+
+windows gdi based engine for evas
+
+
+--enable-software-ddraw[=static]
+
+windows direct-draw engine for evas
+
+
+--enable-direct3d[=static]
+
+evas direct3d engine (experimental)
+
+
+--enable-software-sdl[=static]
+
+this is the sdl engine that uses sdl library (http://www.libsdl.org). This
+library should work on many operating system. the buffer is
+software-rendered with evas's default software rendering core.
+
+
+--enable-gl-sdl[=static]
+
+opengl (and opengl-es2.0) rendering engine that uses sdl as the front
+end interface. see --enable-gl-x11 etc. for information.
+
+
+--enable-software-8-x11[=static]
+
+8bit only rendering core. intended for greyscale output on things like
+e-paper or simplistic greyscale LCD devices which have no color, such
+as ebook readers.
+
+if compiling with =static suffix, then must
+"./configure --enable-static-software-8" as well.
+
+
+--enable-software-16-x11[=static]
+
+16bit specific renderer. lower quality than the default. also limited
+in abilities (no support for smooth scale or transformations/map). in
+a state of disrepair. do not use unless your hardware is just 16bpp
+and very limited in CPU and memory.
+
+if compiling with =static suffix, then must
+"./configure --enable-static-software-16" as well.
+
+
+--enable-software-16-ddraw[=static]
+
+16bit renderer for direct-draw. same as software-16-x11 - don't use.
+in disrepair.
+
+if compiling with =static suffix, then must
+"./configure --enable-static-software-16" as well.
+
+
+--enable-software-16-wince[=static]
+
+same as software-16-ddraw but for windows-ce. in disrepair. don't use.
+
+if compiling with =static suffix, then must
+"./configure --enable-static-software-16" as well.
+
+
+------------------------------------------------------------------------------
+CPU:
+--enable-cpu-c
+
+this enabled the c code. you can actually build the code without the c
+fallback code and only have the mmx routines for example. it is suggested to
+always use this regardless unless you have some definite size issues with the
+code.
+
+
+--enable-cpu-mmx
+
+this enables the mmx optimized routines. this works for pentium, pentium2,
+pentium3, pentium4, athlon and duron processors. it can get quite
+considerable speedups, souse it if you can. ppc owners just have to live with
+the c fallback functions unfortunately as no one has provided any ALTIVEC asm
+routines yet. :) arm owners will also have to rely on the c fallback
+routines as i haven't managed to come up with any arm assembly that actually
+can beat the c code (when compiled with all optimizations) in speed.
+
+
+--enable-cpu-sse
+
+this enables sse optimizations available in he pentium3 and 4 cpus (not
+athlon and duron or pentium 2 or pentium cpu's). ppc owners just have to
+live with the c fallback functions unfortunately as no one has provided any
+ALTIVEC asm routines yet. :) arm owners will also have to rely on the c
+fallback routines as i haven't managed to come up with any arm assembly that
+actually can beat the c code (when compiled with all optimizations) in speed.
+
+--enable-cpu-sse3
+
+this enables sse3 optimizations available in the Intel Pentium4, Core, Xeon,
+and Atom processors, as well as the AMD Athlon64, Phenom, Opteron, and Turion
+processors.
+
+
+--enable-cpu-neon
+
+This enables support for the Arm Cortex-A8 and later Neon register
+set. In particular it will use neon optimized code for rotations and
+drawing with the software engines. Open GL based renderers will gain
+nothing from the use of neon.
+
+To use neon with gcc-4.4 you need a post-2009 gcc and options
+something like: -mcpu=cortex-a8 -mfloat-abi=softfp -mfpu=neon
+Note that this slightly slows down non-optimized parts of evas but
+the gains in drawing are more then worth it overall.
+
+This is enabled by default, and turns off if a small test program is
+unable to compile.
+
+Performance is at least 50%, and in some real world tests approaches
+100%.
+
+If you have any issues with neon, please report them to either the
+edevel mailing list or Brett Nash <nash@nash.id.au>
+
+
+------------------------------------------------------------------------------
+IMAGE LOADERS:
+--enable-image-loader-png[=static]
+
+this enables the loader code that loads png files using libpng. there may be
+call for embedded devices later that have custom written small image
+loaders that uses less disk space than libpng to load custom format images.
+for now this is the only loader so you may as well include it.
+
+
+--enable-image-loader-jpeg[=static]
+
+this enables the loader code that loads jpeg files using libjpeg. this
+loader also supports load options to pre-scale jpeg images down to
+provide much faster load times while also getting downscaling by 1/2,
+1/4 or 1/8th the size in each dimension for "free". with an added
+patch to libjpeg7, it can also fast-decode a specific region of a jpeg
+file (without the patch it take a slow-path to do this).
+
+
+--enable-image-loader-edb[=static]
+
+edb image loader- can load images inside edb database files. not very
+useful as edb itself is no longer used by enlightenment. may be
+removed at some point, so unless you have a burning need for this,
+don't use edb files to store image data and rely on this loader
+
+
+--enable-image-loader-eet[=static]
+
+loads image data from eet files. eet files are the backing for edje
+storage, so this is needed for edje to work. it is very useful as it
+can load an image from anywhere in the eet archive by key value so eet
+files are like "zip" files where you can pack a whole lot of image and
+other data together and just pick out the pieces you need at runtime.
+requires the eet library.
+
+
+--enable-image-loader-gif[=static]
+
+gif image loader. gif is an obsolete format, but due to its longevity,
+sitll has lots of existing data around.
+
+NOTE: evas has no notion of time, thus animated gif file are not
+supported!
+
+
+--enable-image-loader-pmaps[=static]
+
+ppm/pnm/pgm image loader that can load the "pnm" style image format.
+not very common, but the files are simple raw RGB, greyscale image or
+bitmap data in binary or ascii format
+
+
+--enable-image-loader-svg[=static]
+
+this loader can load svg files via esvg (thus it is a dependency). This
+loader supports load options to set the dpi to decode the svg at etc. which
+can then be used to create scalable images that scale to any size without
+becoming blocky or blurry, if the source is an svg file.
+
+Esvg can be found here:
+
+http://code.google.com/p/enesim/
+
+Install (in that order):
+
+enesim
+ender
+etch
+egueb
+
+
+--enable-image-loader-tiff[=static]
+
+this loader uses libtiff to load tiff image files
+
+--enable-image-loader-webp[=static]
+
+this loader uses libwebp to load webp image files
+
+--enable-image-loader-xpm[=static]
+
+this is an xpm format image loader. xpm format images are ascii files
+that look like c/c++ source code that contain images. these files are
+old-fashioned unix+x11 images you may encounter, but are inefficient
+for storage and decoding and have been superseded by png files in
+almost every way
+
+
+--enable-image-loader-bmp[=static]
+
+this enables the bmp image format loader. note that there seems to be
+a disagreement on 32bit bmp format images where alpha channels are
+concerned and you may run into issues with bmps generated by the gimp
+that have alpha channels. there is a problem where they don't seem to
+be spec-conformant.
+
+
+--enable-image-loader-tga[=static]
+
+this loader load tga format files. these files are very old-fashioned
+but found often in the 3d graphics world.
+
+
+--enable-image-loader-generic[=static]
+
+this loader will execute a given binary to decode an image and read
+the resulting image data via a shared memory segment, a mmaped file or
+stdout. it uses the command-line to pass the filename and any load
+parameters, and reads stdout from the loader binary to get metadata like
+width, height, alpha channel flag and location of pixel data. this
+loader has no dependencies as the binaries run are to be found in
+PREIFX/lib/evas/utils and are named evas_image_loader.EXTENSION where
+.EXTENSION is replaced by the filename extension to be decoded. if
+this binary does not exist then evas_image_loader (with no extension) is
+tried as a last fallback allowing it to handle "all cases".
+
+since this loader doesn't use any libraires, it relies on runtime
+dependencies and executables existing in the utils directory. note that
+images loaded via this mechanism will have slower load times due to the
+overhead of execution of another binary, but any instability in the
+loaders themselves will not affect the application using evas.
+
+this also means that licenses such as GPL for the binaries in this
+utils directory do not affect evas and the applications or libraries
+using evas.
+
+there is a separately released evas_generic_loaders package which
+builds stand-alone binaries that can do this style of decoding for for
+evas. this package currently handles XCF, PDF, PS, RAW, SVG (via
+librsvg) and video formats (via gstreamer).
+
+
+------------------------------------------------------------------------------
+FONT LOADERS:
+--enable-font-loader-eet[=static]
+
+this loader can load font (ttf) files directly from eet archives like
+the eet image loader. requires the eet library
+
+
+------------------------------------------------------------------------------
+CONVERTERS:
+--enable-convert-yuv
+
+this enables an optimized yuv (yv12 601 colorspace) to ARGB32
+converter in evas
+
+
+--enable-convert-16-rgb-565
+
+the most common converter you'll want for 16bpp. this means 5 bits for red,
+6 bits for green and 5 bits for blue are used.
+
+
+--enable-convert-16-rgb-555
+
+this is a converter for what many people know as "15 bit" color. you might
+want to enable this for X output as it used to be common to find many cards
+that do this.
+
+
+--enable-convert-16-rgb-444
+
+this converter outputs to 12bit packed (int 16 bit WORDS).
+
+
+--enable-convert-16-rgb-ipq
+
+this converter was written specifically for the ipaq (and may apply to
+similarly configured devices) because it lies about its screen depth. it
+says it is 16bit 565 (that means 5 upper bits of the WORD are red, the next 6
+bits are for green abd the next 5 for blue) but in fact only the upper 4
+bits of each color component (red green and blue) are significant and work,
+so effectively the display is 12 bits of color, not 16, but padded out to
+fill 16bits, with unused bits in the color masks. X on the ipaq advertises
+it as a full 16bpp 565 display (i can't remember what the linux framebuffer
+advertised it as) and so many lumps of code can be fooled into rendering
+data badly because they think the output will look as the expect. This
+renderer assumes the upper 4 bits fo each color primitive only are
+significant and renders accordingly. this produces nice quality images on
+the ipaq and even still works in 16bpp 565 on your pc. it is highly
+recommended to use this renderer if your target is an ipaq or your device
+displays similar qualities of the ipaq for display purposes.
+
+
+--enable-convert-16-rgb-rot-0
+
+this enables the 16bpp converters to run with 0 degrees rotation - this is
+normal display and you should really include this (though it is optional if you
+only ever want to do portrait mode - perhaps like on an ipaq embedded device)
+
+
+--enable-convert-16-rgb-rot-270
+
+this enables the portrait mode (270 degree rotation) converters for 16bpp.
+this is the standard display mode for things like pocketpc on the ipaq and
+the zaurus etc. this is an optimized part of the rendering pipeline to allow
+portrait display with a much lower overhead than doing it through X.
+
+
+--enable-convert-16-rgb-rot-180
+
+same as --enable-convert-16-rgb-rot-270 but for 180 degrees
+
+
+--enable-convert-16-rgb-rot-90
+
+same as --enable-convert-16-rgb-rot-270 but for 90 degrees
+
+
+--enable-convert-24-rgb-888
+
+this converts evas's 32bit ARGB to 24bit RGB packed format for output
+if needed
+
+
+--enable-convert-24-bgr-888
+
+this converts evas's 32bit ARGB to 24bit packed BGR format for output
+if needed
+
+
+--enable-convert-32-rgb-8888
+
+32bit RGB output conversion support. byteswapping compared to evas's
+native colorspace
+
+
+--enable-convert-32-bgr-8888
+
+conversion (reduces toa memory copy) from evas's native colorspace to
+the same color format.
+
+
+--enable-convert-32-rgb-rot-0
+
+copies without rotation evas's native image format
+
+
+--enable-convert-32-rgb-rot-270
+
+copies evas's native ARGB32 pixels but at a rotation of 270 degrees.
+
+
+--enable-convert-32-rgb-rot-180
+
+same as --enable-convert-32-rgb-rot-270 but for 180 degrees
+
+
+--enable-convert-32-rgb-rot-90
+
+same as --enable-convert-32-rgb-rot-270 but for 90 degrees
+
+
+--enable-convert-24-rgb-ezx
+
+a special colorspace handler for 18bit color packed into 24bit output
+(where only 6 bits per r, g and b byte are used). the only known
+platform that did this was the motorola esx based phones that used
+qtopia originally and have open ezx ports for them.
+
+
+--enable-convert-8-gry-1
+
+enable 8bit gray to 1 bit black & white converter
+
+
+--enable-convert-8-gry-16
+
+8bit grey to 16 level grayscale converter
+
+
+--enable-convert-8-grayscale-64
+
+8bit grey to 64 level grayscale converter
+
+
+--enable-convert-8-rgb-332
+
+enable converter from 32bit ARGB to 8bit color "332" colorspace (3bits
+red, 3 bits green, 2 bits blue)
+
+
+--enable-convert-8-rgb-666
+
+enable converter from 32bit ARGB to 8bit color "216" "websafe"
+colorspace (6 values for red, 6 for green and 6 for blue - 6x6x6 being
+216 colors).
+
+
+--enable-convert-8-rgb-232
+
+same as convert-8-rgb-332 but 2 bits red, 3 green, 2 blue
+
+
+--enable-convert-8-rgb-222
+
+same as convert-8-rgb-332 but 2 bits red, 2 green, 2 blue
+
+
+--enable-convert-8-rgb-221
+
+same as convert-8-rgb-332 but 2 bits red, 2 green, 1 blue
+
+
+--enable-convert-8-rgb-121
+
+same as convert-8-rgb-332 but 1 bit red, 2 green, 1 blue
+
+
+--enable-convert-8-rgb-111
+
+same as convert-8-rgb-332 but 1 bit red, 1 green, 1 blue. this is the
+lowest sized colorspace supported for rgb (3bits, 8 color).
+
+
+------------------------------------------------------------------------------
+MISC:
+--enable-pthreads
+
+this enables pthread support in evas so multiple threads may run
+internally for parallel rendering, loading etc.
+
+
+--enable-async-events
+
+this provides the ability for evas to have an asynchronous event
+notification pipe to provide events when background threads are done
+with tasks, like pre-loading image files
+
+
+--enable-async-preload
+
+evas can load images (preload) them in the background using a thread
+if you ask it to, and provide events when done. this goes hand-in-hand
+with --enable-pthreads and --enable-async-events. you really want all
+of these available.
+
+
+--enable-pipe-render **NOT ON BY DEFAULT DUE TO DUBIOUS IMPROVEMENTS**
+
+this enables a multiple-thread renderer that divides the rendering
+into N regions (1 per core) to speed up rendering in software when you
+have multiple cpu cores.
+
+
+--enable-fontconfig
+
+this enables fontconfig support for loading font files by using
+generic fontconfig font names and styles. you really should use this
+by default on any linux/unix platform for universal font support.
+
+
+--enable-fribidi
+
+this enables support for the fribidi library to have right to left and
+left to right font rendering so languges such as arabic, hebrew and
+other "RTL" langauges display properly.
+
+
+--enable-harfbuzz
+
+this enables support for the harfbuzz shaping library for complex
+shaping support in arabic, hindi and other similar languages.
+
+--enable-liblinebreak
+
+this enables support of complex line breaking rules using liblinebreak.
+
+--enable-evas-magic-debug
+
+this allows you to enable and disable evas's extra magic number
+checks. these allow better stability with runtime object magic
+"number" checks to make sure you are accessing a real object in memory
+of the right type, and will avoid doing "bad things" if they detect
+the wrong object type being passed in. if you are absolutely sure your
+system has no bugs in accessing objects of the wrong type with the
+wrong calls, you can gain some small performance by disabling this.
+
+
+------------------------------------------------------------------------------
+NOTES:
+
+For the arm optimizations you want to try:
+ export CFLAGS="-O2 -march=armv5te -mcpu=arm1136jf-s -fomit-frame-pointer"
+
+To enable the async renderer compile with:
+ --enable-async-render
+and also runtime set this environment variable:
+ export EVAS_RENDER_MODE=non-blocking
+
+For compilation with MinGW, fnmatch.h is probably missing. That file can be
+found here:
+ http://www.koders.com/c/fid2B518462CB1EED3D4E31E271DB83CD1582F6EEBE.aspx
+It should be installed in the mingw include directory.
+
projects / framework / uifw / evas.git / commitdiff