From 6be0d73e2a5de2e6a2570a48e6e11bbc4563f5e3 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Wed, 7 Nov 2012 11:45:04 +0530 Subject: [PATCH] OMAPDSS: DISPC: Use output width and height to calculate row/pix inc for writeback When calculating row and pixel increments for graphics and video pipes, we need to consider the dimensions of the input frame to know how to read from the buffer. Hence, we need to calculate these parameters from the input to the pipeline. For writeback, the row and pixel increments need to be calculated based on the output of the writeback pipeline, i.e, the dimensions of the frame after scaling. Ensure that dispc driver uses values of out_width and out_height when calling calc_dma/calc_tiler_rotation_offset. For graphics and video pipes, the original code passed the original height as frame_height to calc_dma_rotation_offset, and not the predecimated height. This is left as it is for now. We need to figure out why pre decimated height isn't needed. Signed-off-by: Archit Taneja Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/dispc.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 34ada45..170c98c 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2381,7 +2381,7 @@ static int dispc_ovl_setup_common(enum omap_plane plane, unsigned offset0, offset1; s32 row_inc; s32 pix_inc; - u16 frame_height = height; + u16 frame_width, frame_height; unsigned int field_offset = 0; u16 in_height = height; u16 in_width = width; @@ -2449,20 +2449,28 @@ static int dispc_ovl_setup_common(enum omap_plane plane, row_inc = 0; pix_inc = 0; + if (plane == OMAP_DSS_WB) { + frame_width = out_width; + frame_height = out_height; + } else { + frame_width = in_width; + frame_height = height; + } + if (rotation_type == OMAP_DSS_ROT_TILER) - calc_tiler_rotation_offset(screen_width, in_width, + calc_tiler_rotation_offset(screen_width, frame_width, color_mode, fieldmode, field_offset, &offset0, &offset1, &row_inc, &pix_inc, x_predecim, y_predecim); else if (rotation_type == OMAP_DSS_ROT_DMA) - calc_dma_rotation_offset(rotation, mirror, - screen_width, in_width, frame_height, + calc_dma_rotation_offset(rotation, mirror, screen_width, + frame_width, frame_height, color_mode, fieldmode, field_offset, &offset0, &offset1, &row_inc, &pix_inc, x_predecim, y_predecim); else calc_vrfb_rotation_offset(rotation, mirror, - screen_width, in_width, frame_height, + screen_width, frame_width, frame_height, color_mode, fieldmode, field_offset, &offset0, &offset1, &row_inc, &pix_inc, x_predecim, y_predecim); -- 2.7.4