1 #include "../stdafx.h"

     2 #include "../gfx.h"

     3 #include "32bpp_base.hpp"

     4 

     5 void *Blitter_32bppBase::MoveTo(const void *video, int x, int y)

     6 {

     7 	return (uint32 *)video + x + y * _screen.pitch;

     8 }

     9 

    10 void Blitter_32bppBase::SetPixel(void *video, int x, int y, uint8 color)

    11 {

    12 	*((uint32 *)video + x + y * _screen.pitch) = LookupColourInPalette(color);

    13 }

    14 

    15 void Blitter_32bppBase::SetPixelIfEmpty(void *video, int x, int y, uint8 color)

    16 {

    17 	uint32 *dst = (uint32 *)video + x + y * _screen.pitch;

    18 	if (*dst == 0) *dst = LookupColourInPalette(color);

    19 }

    20 

    21 void Blitter_32bppBase::SetHorizontalLine(void *video, int width, uint8 color)

    22 {

    23 	uint32 *dst = (uint32 *)video;

    24 	uint32 color32 = LookupColourInPalette(color);

    25 

    26 	for (; width > 0; width--) {

    27 		*dst = color32;

    28 		dst++;

    29 	}

    30 }

    31 

    32 void Blitter_32bppBase::CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch)

    33 {

    34 	int direction = (height < 0) ? -1 : 1;

    35 	uint32 *dst = (uint32 *)video;

    36 	uint32 *usrc = (uint32 *)src;

    37 

    38 	height = abs(height);

    39 	for (; height > 0; height--) {

    40 		memcpy(dst, usrc, width * sizeof(uint32));

    41 		usrc += src_pitch * direction;

    42 		dst += _screen.pitch * direction;

    43 	}

    44 }

    45 

    46 void Blitter_32bppBase::CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch)

    47 {

    48 	int direction = (height < 0) ? -1 : 1;

    49 	uint32 *udst = (uint32 *)dst;

    50 	uint32 *src = (uint32 *)video;

    51 

    52 	height = abs(height);

    53 	for (; height > 0; height--) {

    54 		memcpy(udst, src, width * sizeof(uint32));

    55 		src += _screen.pitch * direction;

    56 		udst += dst_pitch * direction;

    57 	}

    58 }

    59 

    60 void Blitter_32bppBase::MoveBuffer(void *video_dst, const void *video_src, int width, int height)

    61 {

    62 	uint32 *dst = (uint32 *)video_dst;

    63 	uint32 *src = (uint32 *)video_src;

    64 

    65 	for (; height > 0; height--) {

    66 		memmove(dst, src, width * sizeof(uint32));

    67 		src += _screen.pitch;

    68 		dst += _screen.pitch;

    69 	}

    70 }

    71 

    72 int Blitter_32bppBase::BufferSize(int width, int height)

    73 {

    74 	return width * height * sizeof(uint32);

    75 }