SH7205 Datasheet, PDF (1489/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 26 2D Graphics Engine (2DG)
64 pixels
Source
image size
60 lines
2DG
H direction = ×1.5
V direction = ×1.5
The CPU transfers the source image to the 2DG
(data equal to the actual number of lines (60 lines) is transferred).
96 pixels
90 lines
Resized image
• The size of image which is transferred to the 2DG by the CPU:
64 pixels in the horizontal direction and 60 lines in the vertical direction
• The size of image which is written to memory by the 2DG:
96 pixels in the horizontal direction and 90 lines in the vertical direction
Figure 26.49 Enlarging an image, both horizontally and vertically,
when the horizontal image has 64 pixels or less (normal setting (not duplicate setting))
70 pixels
105 pixels
Source
image size
70 lines
2DG
H direction = ×1.5
V direction = ×1.5
Resized image
The CPU transfers the source image to the 2DG
(the number of lines to which duplicate line setting is applied (104 lines) is transferred).
105 lines
• The image size which is transferred to the 2DG by the CPU:
70 pixels in the horizontal direction and 105 lines (line duplicate setting) in the vertical direction
• The image size which is written to memory by the 2DG:
105 pixels in the horizontal direction and 105 lines in the vertical direction
Figure 26.50 Enlarging an image, both horizontally and vertically,
when the horizontal image has 65 pixels or more (duplicate-line setting)
Rev. 1.00 Mar. 25, 2008 Page 1457 of 1868
REJ09B0372-0100