mirror
/
devilutionX
mirror of https://github.com/diasurgical/devilutionX.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

add inline assembly code for drawing semi-transparent rectangles

pull/25/head
Andrew Dunstan 8 years ago committed by Dennis Duda
parent
553369bb34
commit
594ef2e95b
6 changed files with 110 additions and 164 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 84
      Source/asm_trans_rect.inc
  2. 39
      Source/error.cpp
  3. 50
      Source/items.cpp
  4. 50
      Source/minitext.cpp
  5. 50
      Source/stores.cpp
  6. 1
      defs.h

84
Source/asm_trans_rect.inc
Unescape View File

@ -0,0 +1,84 @@
/* Draws a half-transparent rectangle by blacking out odd pixels on odd lines,
* even pixels on even lines.
*
* TRANS_RECT_X = x offset of upper-left corner
* TRANS_RECT_Y = y offset of upper-left corner
* TRANS_RECT_WIDTH = width of rectangle
* TRANS_RECT_HEIGHT = height of rectangle
*/
#if !defined(TRANS_RECT_X) || !defined(TRANS_RECT_Y) || !defined(TRANS_RECT_WIDTH) || !defined(TRANS_RECT_HEIGHT)
#error ASM_TRANS_RECT: Parameter not set
#endif
#if defined(_MSC_VER) && defined(_M_IX86)
__asm {
mov edi, gpBuffer
// origin is at 64,160
add edi, (160+TRANS_RECT_Y+TRANS_RECT_HEIGHT-1)*ROW_PITCH+64+TRANS_RECT_X
xor eax, eax
mov edx, TRANS_RECT_HEIGHT>>1
yloop:
mov ecx, TRANS_RECT_WIDTH>>1
x0loop:
stosb
inc edi
loop x0loop
#if (TRANS_RECT_WIDTH & 1)
stosb
#endif
sub edi, ROW_PITCH+TRANS_RECT_WIDTH
mov ecx, TRANS_RECT_WIDTH>>1
x1loop:
inc edi
stosb
loop x1loop
sub edi, ROW_PITCH+(TRANS_RECT_WIDTH&~1)
dec edx
jnz yloop
#if (TRANS_RECT_HEIGHT & 1)
mov ecx, TRANS_RECT_WIDTH>>1
x2loop:
stosb
inc edi
loop x2loop
#if (TRANS_RECT_WIDTH & 1)
stosb
#endif
#endif
}
#else // _MSC_VER && _M_IX86
{
int row, col;
char *pix = &gpBuffer->row[TRANS_RECT_Y+TRANS_RECT_HEIGHT-1].pixels[TRANS_RECT_X];
for (row = TRANS_RECT_HEIGHT>>1; row != 0; row--) {
for (col = TRANS_RECT_WIDTH>>1; col != 0; col--) {
*pix++ = 0;
pix++;
}
#if (TRANS_RECT_WIDTH & 1)
*pix++ = 0;
#endif
pix -= ROW_PITCH+TRANS_RECT_WIDTH;
for (col = TRANS_RECT_WIDTH>>1; col != 0; col--) {
pix++;
*pix++ = 0;
}
pix -= ROW_PITCH+(TRANS_RECT_WIDTH&~1);
}
#if (TRANS_RECT_HEIGHT & 1)
for (col = TRANS_RECT_WIDTH>>1; col != 0; col--) {
*pix++ = 0;
pix++;
}
#if (TRANS_RECT_WIDTH & 1)
*pix++ = 0;
#endif
#endif
}
#endif
#undef TRANS_RECT_Y
#undef TRANS_RECT_X
#undef TRANS_RECT_WIDTH
#undef TRANS_RECT_HEIGHT

39
Source/error.cpp
Unescape View File

@ -83,12 +83,6 @@ void __cdecl DrawDiabloMsg()
{
int v0; // esi
signed int v1; // edi
char *v2; // edi
signed int v3; // edx
signed int v4; // ecx
int v5; // edi
signed int v6; // ecx
_BYTE *v7; // edi
int v8; // edi
signed int v9; // ebx
signed int v10; // eax
@ -125,32 +119,13 @@ void __cdecl DrawDiabloMsg()
--v1;
}
while ( v1 );
v2 = &gpBuffer->row[203].pixels[104];
v3 = 27;
do
{
v4 = 216;
do
{
*v2 = 0;
v2 += 2;
--v4;
}
while ( v4 );
v5 = (int)(v2 - 1200);
v6 = 216;
do
{
v7 = (_BYTE *)(v5 + 1);
*v7 = 0;
v5 = (int)(v7 + 1);
--v6;
}
while ( v6 );
v2 = (char *)(v5 - 1200);
--v3;
}
while ( v3 );
#define TRANS_RECT_X 104
#define TRANS_RECT_Y 150
#define TRANS_RECT_WIDTH 432
#define TRANS_RECT_HEIGHT 54
#include "asm_trans_rect.inc"
strcpy(tempstr, MsgStrings[msgflag]);
v8 = screen_y_times_768[342] + 165;
v9 = strlen(tempstr);

50
Source/items.cpp
Unescape View File

@ -4006,51 +4006,13 @@ LABEL_104:
void __cdecl DrawUBack()
{
char *v0; // edi
signed int v1; // edx
signed int v2; // ecx
int v3; // edi
signed int v4; // ecx
_BYTE *v5; // edi
signed int v6; // ecx
CelDecodeOnly(88, 487, pSTextBoxCels, 1, 271);
v0 = &gpBuffer->row[324].pixels[27];
v1 = 148;
do
{
v2 = 132;
do
{
*v0 = 0;
v0 += 2;
--v2;
}
while ( v2 );
*v0 = 0;
v3 = (int)(v0 - 1032);
v4 = 132;
do
{
v5 = (_BYTE *)(v3 + 1);
*v5 = 0;
v3 = (int)(v5 + 1);
--v4;
}
while ( v4 );
v0 = (char *)(v3 - 1032);
--v1;
}
while ( v1 );
v6 = 132;
do
{
*v0 = 0;
v0 += 2;
--v6;
}
while ( v6 );
*v0 = 0;
#define TRANS_RECT_X 27
#define TRANS_RECT_Y 28
#define TRANS_RECT_WIDTH 265
#define TRANS_RECT_HEIGHT 297
#include "asm_trans_rect.inc"
}
void __fastcall PrintUString(int x, int y, int cjustflag, char *str, int col)

50
Source/minitext.cpp
Unescape View File

@ -88,51 +88,13 @@ void __fastcall InitQTextMsg(int m)
void __cdecl DrawQTextBack()
{
char *v0; // edi
signed int v1; // edx
signed int v2; // ecx
int v3; // edi
signed int v4; // ecx
_BYTE *v5; // edi
signed int v6; // ecx
CelDecodeOnly(88, 487, pTextBoxCels, 1, 591);
v0 = &gpBuffer->row[324].pixels[27];
v1 = 148;
do
{
v2 = 292;
do
{
*v0 = 0;
v0 += 2;
--v2;
}
while ( v2 );
*v0 = 0;
v3 = (int)(v0 - 1352);
v4 = 292;
do
{
v5 = (_BYTE *)(v3 + 1);
*v5 = 0;
v3 = (int)(v5 + 1);
--v4;
}
while ( v4 );
v0 = (char *)(v3 - 1352);
--v1;
}
while ( v1 );
v6 = 292;
do
{
*v0 = 0;
v0 += 2;
--v6;
}
while ( v6 );
*v0 = 0;
#define TRANS_RECT_X 27
#define TRANS_RECT_Y 28
#define TRANS_RECT_WIDTH 585
#define TRANS_RECT_HEIGHT 297
#include "asm_trans_rect.inc"
}
void __fastcall PrintQTextChr(int screen_x, int screen_y, char *cel_buf, int frame)

50
Source/stores.cpp
Unescape View File

@ -155,51 +155,13 @@ void __cdecl FreeStoreMem()
void __cdecl DrawSTextBack()
{
char *v0; // edi
signed int v1; // edx
signed int v2; // ecx
int v3; // edi
signed int v4; // ecx
_BYTE *v5; // edi
signed int v6; // ecx
CelDecodeOnly(408, 487, pSTextBoxCels, 1, 271);
v0 = &gpBuffer->row[324].pixels[347];
v1 = 148;
do
{
v2 = 132;
do
{
*v0 = 0;
v0 += 2;
--v2;
}
while ( v2 );
*v0 = 0;
v3 = (int)(v0 - 1032);
v4 = 132;
do
{
v5 = (_BYTE *)(v3 + 1);
*v5 = 0;
v3 = (int)(v5 + 1);
--v4;
}
while ( v4 );
v0 = (char *)(v3 - 1032);
--v1;
}
while ( v1 );
v6 = 132;
do
{
*v0 = 0;
v0 += 2;
--v6;
}
while ( v6 );
*v0 = 0;
#define TRANS_RECT_X 347
#define TRANS_RECT_Y 28
#define TRANS_RECT_WIDTH 265
#define TRANS_RECT_HEIGHT 297
#include "asm_trans_rect.inc"
}
void __fastcall PrintSString(int x, int y, unsigned char cjustflag, char *str, int col, int val)

1
defs.h
Unescape View File

@ -4,6 +4,7 @@
#define DMAXY 40
#define LIGHTSIZE 6912 // 27 * 256
#define ROW_PITCH 768
// must be unsigned to generate unsigned comparisons with pnum
#define MAX_PLRS 4

Write Preview
Loading…
Cancel
Save