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Bug fix: cross-hatch loop was wrong 

Also rename and tidy up a bunch of variables
This commit is contained in:
ZedThree 2014-05-11 21:31:31 +02:00
parent 1e8f80fa5c
commit 7f4e21f334
1 changed files with 24 additions and 33 deletions
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57
src/gfx.c
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@ -168,17 +168,13 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
if (!(colour & 0x2000000)) {
if (!(colour & 0x4000000)) {
uint8* edi;
edi = (top_ * (dpi->width + dpi->pitch)) + left_ + dpi->bits;
uint8* pixel = (top_ * (dpi->width + dpi->pitch)) + left_ + dpi->bits;
uint8 col = colour & 0xFF;
int length;
length = dpi->width + dpi->pitch - right_;
int length = dpi->width + dpi->pitch - right_;
for (int i = 0; i < bottom_; ++i) {
memset(edi, col, right_);
edi += length + right_;
memset(pixel, (colour & 0xFF), right_);
pixel += length + right_;
}
} else {
// 00678B8A 00678E38
@ -193,7 +189,7 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
RCT2_GLOBAL(0x009ABDB2, uint16) = bottom_;
RCT2_GLOBAL(0x00EDF814, uint32) = right_;
top_ = (top + dpi_->y) & 0xf;
top_ = (top + dpi->y) & 0xf;
right_ = (right + dpi_->x) &0xf;
dpi_ = esi;
@ -229,28 +225,28 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
} else {
// 00678B7E 00678C83
if (dpi_->pad_0E < 1) {
if (dpi->pad_0E < 1) {
// Location in screen buffer?
uint8* edi = top_ * (dpi_->width + dpi_->pitch) + left_ + dpi_->bits;
uint8* pixel = top_ * (dpi->width + dpi->pitch) + left_ + dpi->bits;
// Find colour in colour table?
uint32 eax = RCT2_ADDRESS(0x0097FCBC, uint32)[(colour & 0xFF)];
rct_g1_element* g1_element = &(RCT2_ADDRESS(RCT2_ADDRESS_G1_ELEMENTS, rct_g1_element)[eax]);
int length = (dpi_->width + dpi_->pitch) - right_;
int length = (dpi->width + dpi->pitch) - right_;
// Fill the rectangle with the colours from the colour table
for (int i = 0; i < bottom_; ++i) {
for (int j = 0; j < right_; ++j) {
*edi = *((uint8*)(&g1_element->offset[*edi]));
edi++;
*pixel = *((uint8*)(&g1_element->offset[*pixel]));
pixel++;
}
edi += length;
pixel += length;
}
} else if (dpi_->pad_0E > 1) {
} else if (dpi->pad_0E > 1) {
// 00678C8A 00678D57
right_ = right;
} else if (dpi_->pad_0E == 1) {
} else if (dpi->pad_0E == 1) {
// 00678C88 00678CEE
right = right;
}
@ -263,12 +259,11 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
} else {
// 00678B2E 00678BE5
// Cross hatching
uint16 si;
si = 0;
uint16 pattern = 0;
left_ = left_ - dpi->x;
if (left_ < 0) {
si = si ^ left_;
pattern = pattern ^ left_;
left_ = 0;
}
@ -282,7 +277,7 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
top_ = top - dpi->y;
if (top_ < 0) {
si = si ^ top_;
pattern = pattern ^ top_;
top_ = 0;
}
@ -294,29 +289,25 @@ void gfx_fill_rect(rct_drawpixelinfo *dpi, int left, int top, int right, int bot
bottom_ -= top_;
uint8* edi = (top_ * (dpi->width + dpi->pitch)) + left_ + dpi->bits;
uint8 col = colour & 0xFF;
uint8* pixel = (top_ * (dpi->width + dpi->pitch)) + left_ + dpi->bits;
int length = dpi->width + dpi->pitch - right_;
for (int i = 0; i < bottom_; ++i) {
uint32 ecx;
ecx = si;
uint32 ecx = pattern;
// Rotate right
ecx = (ecx >> 1) | (ecx << (sizeof(ecx) * CHAR_BIT - 1));
ecx = (ecx & 0xFFFF0000) | right_;
while (ecx > 0 && ecx != 0xFFFFFFFF) {
// Fill every other pixel with the colour
for (; (ecx & 0xFFFF) > 0; ecx--) {
ecx = ecx ^ 0x80000000;
if ((int)ecx < 0) {
*edi = col;
*pixel = colour & 0xFF;
}
edi++;
ecx--;
pixel++;
}
si = si ^ 1;
edi += length;
pattern = pattern ^ 1;
pixel += length;
}
}