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#include "../stdafx.h"
#include "../gfx.h"
#include "8bpp.hpp"
static FRenderer_8bpp iFRenderer_8bpp;
void *Renderer_8bpp::MoveTo(const void *video, int x, int y)
{
return (uint8 *)video + x + y * _screen.pitch;
}
void Renderer_8bpp::SetPixel(void *video, int x, int y, uint8 color)
{
*((uint8 *)video + x + y * _screen.pitch) = color;
}
void Renderer_8bpp::SetPixelIfEmpty(void *video, int x, int y, uint8 color)
{
uint8 *dst = (uint8 *)video + x + y * _screen.pitch;
if (*dst == 0) *dst = color;
}
void Renderer_8bpp::SetHorizontalLine(void *video, int width, uint8 color)
{
memset(video, color, width);
}
void Renderer_8bpp::CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch)
{
int direction = (height < 0) ? -1 : 1;
uint8 *dst = (uint8 *)video;
uint8 *usrc = (uint8 *)src;
height = abs(height);
for (; height > 0; height--) {
memcpy(dst, usrc, width);
usrc += src_pitch * direction;
dst += _screen.pitch * direction;
}
}
void Renderer_8bpp::CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch)
{
int direction = (height < 0) ? -1 : 1;
uint8 *udst = (uint8 *)dst;
uint8 *src = (uint8 *)video;
height = abs(height);
for (; height > 0; height--) {
memcpy(udst, src, width);
src += _screen.pitch * direction;
udst += dst_pitch * direction;
}
}
void Renderer_8bpp::MoveBuffer(void *video_dst, const void *video_src, int width, int height)
{
uint8 *dst = (uint8 *)video_dst;
uint8 *src = (uint8 *)video_src;
for (; height > 0; height--) {
memmove(dst, src, width);
src += _screen.pitch;
dst += _screen.pitch;
}
}
int Renderer_8bpp::BufferSize(int width, int height)
{
return width * height;
}
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