Think2D Features

Think2D Graphics Accelerator Presentation

The Think2D Graphics Accelerator Engine is a Graphics subsystem IP Core for SoC and Mobile Devices for the acceleration of 2D content. It is a very powerful accelerator, capable of targeting multiple types of surfaces, seemlessly move raster images, accelerate drawing of lines and filled boxes and perform alpha blending in all target modes.

• Modular Design based in AMBA AHB interface for easy SoC Integration.
• AMBA AHB 1xSlave for Register Programming
• AMBA AHB 2xMaster for Connection to Framebuffer and source surfaces
• pure Synthesizable Verilog RTL
• High Performance Rending Engine 1-2 pixels/clock cycle
  
• Evaluation board based on Altera FPGA available
  
• Command List DMAs to minimise CPU overhead


• 2D Drawing Engine:
• Pixel Drawing
• Line Drawing (any direction)
• Filled Rectangles


• Colour formats
• RGBA8888
• RGB565
• RGBA5551
• RGBA4444
• Lum8
• A8
• A1
• YUV (YUY2,UYVY)


• Full Alpha Blending
• Porter-Duff Blending modes
• DirectFB Blending Modes
• Configurable Clipping Rectangle
• Destination Colour keying


• Blitter
• High performance DMA Blitter moves raster images in memory
• Image format Colour Conversion on-the-fly
• Stretching on the x and y axis
• Source Color Keying
• Supports 90, 180, 270 degrees rotation, Mirror-X Mirror-Y

VGA/LCD Controller (optional)

Modular Design based in AMBA AHB interface for easy SoC Integration.

Software Library in portable ANSI C

Linux Framebuffer Drivers

pure Synthesizable Verilog RTL

Can be Customized to match your requirements

Software Drivers

Linux Framebuffer Drivers

Software Library in portable ANSI C

DirectFB GFX Drivers

Screenshots from Think2D Accelerating Nokia's Qt 4.6

Performance

This is an example system with unified memory shared between processor and Think2D Graphics Accelerator running at 50MHz with a single system bus shared between all peripherals, executing the DirectFB df_dok benchmark.

Anti-aliased Text                              3.169 secs (*  20.448 KChars/sec) [100.3%]
Anti-aliased Text (blend)                      6.323 secs (    0.569 KChars/sec) [100.0%]
Fill Rectangle                                 3.376 secs (*  46.589 MPixel/sec) [ 92.5%]
Fill Rectangle (blend)                         4.859 secs (*  21.580 MPixel/sec) [ 34.4%]
Fill Rectangles [10]                           4.509 secs (*  58.137 MPixel/sec) [ 14.6%]
Fill Rectangles [10] (blend)                   8.291 secs (*  23.713 MPixel/sec) [  5.3%]
Fill Triangles                                 3.051 secs (    9.666 MPixel/sec) [100.0%]
Fill Triangles (blend)                         3.113 secs (    8.420 MPixel/sec) [100.0%]
Draw Rectangle                                 3.026 secs (*   1.784 KRects/sec) [100.3%]
Draw Rectangle (blend)                         3.011 secs (*   1.494 KRects/sec) [100.0%]
Draw Lines [10]                                3.089 secs (*   9.388 KLines/sec) [100.3%]
Draw Lines [10] (blend)                        3.058 secs (*   8.175 KLines/sec) [100.3%]
Fill Spans                                     3.122 secs (*  16.793 MPixel/sec) [100.0%]
Fill Spans (blend)                             3.401 secs (*  13.488 MPixel/sec) [100.0%]
Blit                                           3.076 secs (*  23.436 MPixel/sec) [100.0%]
Blit 180                                       4.395 secs (*   5.964 MPixel/sec) [ 74.4%]
Blit colorkeyed                                3.257 secs (*  24.145 MPixel/sec) [100.3%]
Blit destination colorkeyed                    3.837 secs (*  22.204 MPixel/sec) [ 82.2%]
Blit with format conversion                    4.845 secs (*  14.879 MPixel/sec) [ 64.6%]
Blit with colorizing                           3.120 secs (*  23.105 MPixel/sec) [100.0%]
Blit from 32bit (blend)                        6.468 secs (*  12.158 MPixel/sec) [ 40.4%]
Blit from 32bit (blend) with colorizing      108.463 secs (    0.060 MPixel/sec) [100.0%]
Stretch Blit                                   3.825 secs (*  25.399 MPixel/sec) [ 79.5%]
Stretch Blit colorkeyed                        3.839 secs (*  26.108 MPixel/sec) [ 65.5%] 

Note that pixel rate can exceed 1 pixels/clock and CPU utilisation is low when command lists are fully utilised

Videos

Think2D Demos
800x480@25fps double buffer

Just 40MHz with in shared bus configuration with LCD Controller and CPU in SDRAM.

DirectFB's df_andi Penguin Demo running at 26fps on 50MHz SDRAM-only system

Filled Rectangles with blend