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helpers.cpp: Add function SetWith4FB_HW_ACC()

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align for hw blit on apollo/kronos hw


Origin commit data
------------------
Commit: 2c23f339d3
Author: Michael Liebmann <tuxcode.bbg@gmail.com>
Date: 2016-01-26 (Tue, 26 Jan 2016)

Origin message was:
------------------
helpers.cpp: Add function SetWith4FB_HW_ACC()

 align for hw blit on apollo/kronos hw
This commit is contained in:
Michael Liebmann
2016-01-26 06:16:25 +01:00
parent b49195d6fc
commit 3f8b67f627
2 changed files with 22 additions and 0 deletions
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20
src/system/helpers.cpp
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@@ -854,6 +854,26 @@ bool split_config_string(const std::string &str, std::map<std::string,std::strin
return !smap.empty(); return !smap.empty();
} }
/* align for hw blit */
uint32_t GetWidth4FB_HW_ACC(const uint32_t _x, const uint32_t _w, const bool max)
{
uint32_t ret = _w;
static uint32_t xRes = 0;
if (xRes == 0)
xRes = CFrameBuffer::getInstance()->getScreenWidth(true);
if ((_x + ret) >= xRes)
ret = xRes-_x-1;
if (ret%4 == 0)
return ret;
int add = (max) ? 3 : 0;
ret = ((ret + add) / 4) * 4;
if ((_x + ret) >= xRes)
ret -= 4;
return ret;
}
std::vector<std::string> split(const std::string &s, char delim) std::vector<std::string> split(const std::string &s, char delim)
{ {
std::vector<std::string> vec; std::vector<std::string> vec;

2
src/system/helpers.h
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@@ -95,6 +95,8 @@ class CFileHelpers
static uint64_t getDirSize(const std::string& dir){return getDirSize(dir.c_str());}; static uint64_t getDirSize(const std::string& dir){return getDirSize(dir.c_str());};
}; };
uint32_t GetWidth4FB_HW_ACC(const uint32_t _x, const uint32_t _w, const bool max=true);
std::string to_string(int); std::string to_string(int);
std::string to_string(unsigned int); std::string to_string(unsigned int);
std::string to_string(long); std::string to_string(long);