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fb_generic: add swidth variable, "stride in fb_pixel_t units"

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this should allow to use fb_pixel_t pointer arithmetics more often
instead of byte pointers


Origin commit data
------------------
Commit: 7c7d5f08dd
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2017-02-15 (Wed, 15 Feb 2017)
This commit is contained in:
Stefan Seyfried
2017-02-15 20:30:52 +01:00
committed by Michael Liebmann
parent 8cad1eb1a8
commit 0f4ed6c34a
8 changed files with 12 additions and 9 deletions
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5
src/driver/fb_generic.cpp
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@@ -340,6 +340,7 @@ int CFrameBuffer::setMode(unsigned int /*nxRes*/, unsigned int /*nyRes*/, unsign
}
stride = _fix.line_length;
swidth = stride / sizeof(fb_pixel_t);
printf("FB: %dx%dx%d line length %d. %s accelerator.\n", xRes, yRes, bpp, stride,
"Not using graphics"
);
@@ -623,7 +624,6 @@ void CFrameBuffer::paintBoxRel(const int x, const int y, const int dx, const int
line++;
}
} else {
int swidth = stride / sizeof(fb_pixel_t);
fb_pixel_t *fbp = getFrameBufferPointer() + (swidth * y);
int line = 0;
while (line < dy) {
@@ -934,7 +934,7 @@ void CFrameBuffer::paintPixel(const int x, const int y, const fb_pixel_t col)
return;
fb_pixel_t * pos = getFrameBufferPointer();
pos += (stride / sizeof(fb_pixel_t)) * y;
pos += swidth * y;
pos += x;
*pos = col;
@@ -1680,7 +1680,6 @@ void CFrameBuffer::blitBox2FB(const fb_pixel_t* boxBuf, uint32_t width, uint32_t
uint32_t xc = (width > xRes) ? (uint32_t)xRes : width;
uint32_t yc = (height > yRes) ? (uint32_t)yRes : height;
uint32_t swidth = stride / sizeof(fb_pixel_t);
fb_pixel_t *fbp = getFrameBufferPointer() + (swidth * yoff);
fb_pixel_t* data = (fb_pixel_t*)boxBuf;