AM3358: SGX530 support for blending ARGB888 into RGB888

linghua li

Part Number: AM3358

We occasionally got "Output FIFO under-run" errors for LCDC, to reduce the load of LCDC DMA, we want to change the format of framebuffer from 32bit(ARGB8888) to 24bit(RGB888). Does SGX530 support blending ARGB888 images into RGB888 image? anyway, we want to keep using ARGB8888 before output to framebuffer.

Thanks.

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

What software and which version are you using?

0 linghua li over 8 years ago in reply to Biser Gatchev-XID

Prodigy 50 points

software and version:
-- Linux kernel 3.2
-- QT 5.2
-- PVR2d header revision:
#define PVR2D_REV_MAJOR 3
#define PVR2D_REV_MINOR 6

FrameBuffer was configured to RGB888(24bit), when calling PVR2DGetDeviceInfo, it returns -7(PVR2DERROR_GENERIC_ERROR).

Best Regards
linghua

0 Biser Gatchev-XID over 8 years ago in reply to linghua li

TI__Guru**** 393215 points

Kernel v3.2 is obsolete and no longer maintained or supported by TI. Please move to a newer SDK release: www.ti.com/.../PROCESSOR-SDK-AM335X

0 linghua li over 8 years ago in reply to Biser Gatchev-XID

Prodigy 50 points

Thanks for your reply, do you mean that:

1. SGX530 supports blending ARGB8888 image into RGB888 framebuffer;
2. The Linux kernel we used does not support this feature, but the latest kernel support this.

Best Regards
linghua

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AM3358: SGX530 support for blending ARGB888 into RGB888