In addition, to load a texture, a PCI graphics card must copy it from the system's RAM into the card's framebuffer, whereas an AGP card is capable of reading textures directly from system RAM using the graphics address remapping table, which reapportions main memory as needed for texture storage, allowing the graphics card to access them directly.

X's network protocol is based on X command primitives and, with GLX, OpenGL 3D primitives rather than on a more basic framebuffer copying paradigm.

It is also possible to use XFree86 in a framebuffer device, which in turn uses a kernel graphics card driver.

For example, if there are 16 bits per pixel, each pixel is represented in two consecutive ( contiguous ) 8-bit bytes in the framebuffer ( a. k. a. screen buffer ).

The Linux framebuffer ( fbdev ) is a graphic hardware-independent abstraction layer to show graphics on a computer monitor, typically on the console.

There is now a library DirectFB which provides a framework for hardware acceleration of the Linux framebuffer.

With a framebuffer, the electron beam ( if the display technology uses one ) is commanded to trace a left-to-right, top-to-bottom path across the entire screen, the way a television renders a broadcast signal.

At the same time, the color information for each point on the screen is pulled from the framebuffer, creating a set of discrete picture elements ( pixels ).

If the monitor is unable to obtain a signal lock, or if the signal is outside the range of its design limitations, the monitor will ignore the framebuffer signal and possibly present the user with an error message.

The Linux framebuffer device was developed to abstract the physical method for accessing the underlying framebuffer into a guaranteed memory map that is easy for programs to access.

Once the secondary buffer is filled ( often referred to as the " back buffer "), the framebuffer is instructed to look at the secondary buffer instead.

This means that graphics cannot be written to the physical framebuffer on the graphics hardware directly and must be written to a logical graphics " device context " ( DC ) provided by the GDI, which is then translated by the GDI and the device drivers to suit the target hardware device and is written to its physical frame buffer in an appropriate manner.

In computing, Virtual Network Computing ( VNC ) is a graphical desktop sharing system that uses the RFB protocol ( remote framebuffer ) to remotely control another computer.

SystemRescueCD is capable of graphics using the Linux framebuffer option for tools such as GParted.

It is a software library for GNU / Linux / Unix-based operating systems with a small memory footprint that provides graphics acceleration, input device handling and abstraction layer, and integrated windowing system with support for translucent windows and multiple display layers on top of the Linux framebuffer without requiring any kernel modifications.

A ROM chip boosted the effective memory to, but this is offset by the display's framebuffer, which is shared with the DMA video controller.

A 64 kB ROM chip boosts the effective memory to 576 kB, but this is offset by the display's 22 kB framebuffer, which is shared with the DMA video controller.

However, the Vino hardware is capable of DMAing video fields directly into the framebuffer with minimal CPU overhead.

Shoup was also able to use the SuperPaint framebuffer to create an early digital video-capture system.

Other devices produced by Inmos included the A100, A110 and A121 digital signal processors, G364 framebuffer, and a line of video RAMDACs, including the G171, which was adopted by IBM for the original VGA graphics adapter used in the IBM PS / 2.

For example, the Linux Amiga framebuffer device driver allows the use of several other display modes.

Many systems attempt to emulate the function of a framebuffer device, often for reasons of compatibility.

The two most common " virtual " framebuffers are the Linux framebuffer device ( fbdev ) and the X Virtual Framebuffer ( Xvfb ).

* Graphics engine ( hardware ): a specialized computer hardware device, typically integrated with a framebuffer or other video display circuitry, for performing graphics calculations independently of a computer's main processor

In 1988 the release of the Amiga A2024 fixed-frequency monochrome monitor with built-in framebuffer and flicker fixer hardware provided the Amiga with a choice of high-resolution graphic modes ( 1024 × 800 for NTSC and 1024 × 1024 for PAL ).

Links has graphics driver for X Server, Linux framebuffer, svgalib, OS / 2 PMShell and AtheOS GUI.

The hardware was capable of switching between two different areas of memory for the framebuffer, thus allowing double buffering.

The alternative and much improved operating system Minerva does provide full support for the second framebuffer.

The early Evans & Sutherland ESIG line of image-generators ( IGs ) employed the technique in hardware ' on the fly ', to generate images one raster-line at a time without a framebuffer, saving the need for then costly memory.

The Dreamcast provided a mode for rasterizing one row of tiles at a time for direct raster scanout, saving the need for a complete framebuffer, somewhat in the spirit of hardware scanline rendering.

* DirectDraw for hardware accelerated access to the 2D framebuffer.

Truevision produced an i860-based accelerator board intended for use with their Targa and Vista framebuffer cards.

Some sprite systems could be seen as " blitters in disguise ", for example a single scanline on-chip framebuffer composited on scanout by a blitter, or blitters operating with dedicated memory pathways for framebuffers & source images.

This gave the system a maximum latency of 33 ms for writing to the framebuffer.

It was capable of producing resolutions of up to 512 by 512 pixels in 8-bit grayscale, and became a boon for graphics researchers who did not have the resources to build their own framebuffer.

Each framebuffer was connected to an RGB color output ( one for red, one for green and one for blue ), with a minicomputer controlling the three devices as one.

Today, nearly all computers with graphical capabilities utilize a framebuffer for generating the video signal.

The data from the framebuffer in this scheme determined which of the colors in the palette was for the current pixel, and the data stored in the lookup table ( sometimes called the " LUT ") went to three digital-to-analog converters to create the video signal for the display.

Amiga computers, due to their special design attention to graphics performance, created in the 1980s a vast market of framebuffer based graphics cards.

The Direct Rendering Infrastructure ( DRI ), which aims to provide a reliable kernel-level interface to the framebuffer, may make these efforts redundant.

This was due in part to the ST's minimalist hardware design, which consisted of the 68000 CPU which controlled a bitmapped framebuffer chip called Shifter.

Framebuffers used in personal and home computing often had sets of defined " modes " under which the framebuffer could operate.

The driver will then dither the data ( in most cases this can be done by the graphics hardware for maximum performance ) which is stored in the framebuffer as an 8-bit image.

These contrasted with software and blitter methods of 2d animation which modify a framebuffer held in RAM, which required more memory cycles to load and store the pixels, sometimes with an additional mask, and refresh backgrounds behind moving objects.

For this purpose the new ANTIC chip was introduced to handle the storage and interpretation of a bitmap framebuffer, which the TIA did not support.

In the framebuffer implementation this is MiniGLX, which initializes the DRM and provides some X APIs to the userland driver despite the lack of an X Server.

Video RAM, or VRAM, is a dual-ported variant of dynamic RAM ( DRAM ), which was once commonly used to store the framebuffer in some graphics adapters.

Attached to this was a $ 65, 000 framebuffer which had a resolution of 512 × 512 and was 32 bits deep.