IP PortfolioVideo, imaging and audiographics_2d
of_mm_gfx_alpha_blend
Alpha blending engine
Maturity plannedTargets FPGA + ASICDifficulty EasyPriority 2
Porter-Duff compositing with pre-multiplied and straight alpha for two or more pixel streams.
Planned. This block is specified in the catalog with its interfaces and targets. No implementation exists yet; the skeleton command below generates a lint-clean shell with its ports and registers.
Interfaces
| Port | Direction | Kind | Width | Notes |
|---|---|---|---|---|
| ctrl | in/out | APB control bus | 32 | Control and status registers, including ID, VERSION and STATUS |
| irq | out | interrupt | 1 | Interrupt request |
| fg | in | AXI4-Stream | 32 | |
| bg | in | AXI4-Stream | 32 | |
| pix_out | out | AXI4-Stream | 32 |
Standards
No external standard applies.
More in graphics_2d
| ID | Block | Maturity |
|---|---|---|
| of_mm_gfx_blitter | 2D blitter | planned |
| of_mm_gfx_rotate | Image rotation and mirroring | planned |
| of_mm_gfx_font | Font and glyph renderer | planned |
| of_mm_gfx_vector | 2D vector graphics rasterizer | planned |
| of_mm_gfx_fbc | Frame buffer compression | planned |