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1.1 root 1: /*
2: Hatari
3:
4: Screen conversion routines. We have a number of routines to convert ST screen to PC format.
5: We split these into Low,Medium and High each with 8/16-bit versions. To gain extra speed,
6: as almost half of the processing time can be spent in these routines, we check for any
7: changes from the previously displayed frame. AdjustLinePaletteRemap() sets a flag to
8: tell the routines if we need to totally update a line(ie full update, or palette/res change)
9: or if we just can do a difference check. To see how much of the screen updates each frame, simply
10: enable 'TEST_SCREEN_UPDATE'
11: We convert each screen 16 pixels at a time by use of a couple of look-up tables. These tables
12: convert from 2-plane format to bbp and then we can add two of these together to get 4-planes. This
13: keeps the tables small and thus improves speed. We then look these bbp values up as an RGB/Index value
14: to copy to the screen.
15: */
16:
1.1.1.2 ! root 17: #include <SDL.h>
! 18:
! 19: /*#include <endian.h>*/
! 20: /*#include <machine/endian.h>*/
! 21:
1.1 root 22: #include "main.h"
23: #include "screen.h"
24: #include "screenConvert.h"
25: #include "spec512.h"
26: #include "vdi.h"
27: #include "video.h"
28:
29: //#define TEST_SCREEN_UPDATE /* Enable to see partial screen update */
30:
31: int ScrX,ScrY; /* Locals */
32: int ScrUpdateFlag; /* Bit mask of how to update screen */
33: BOOL bScrDoubleY; /* TRUE if double on Y */
34: unsigned long PixelWorkspace[4]; /* Workspace to store pixels to so can print in right order for Spec512 */
35:
36: /* Remap tables to convert from plane format to byte-per-pixel (Upper is for 4-Planes so if shifted by 2) */
37: unsigned long Remap_2_Planes[256] = {
38: 0x00000000, 0x01000000, 0x00010000, 0x01010000, 0x00000100, 0x01000100, 0x00010100, 0x01010100,
39: 0x00000001, 0x01000001, 0x00010001, 0x01010001, 0x00000101, 0x01000101, 0x00010101, 0x01010101,
40: 0x02000000, 0x03000000, 0x02010000, 0x03010000, 0x02000100, 0x03000100, 0x02010100, 0x03010100,
41: 0x02000001, 0x03000001, 0x02010001, 0x03010001, 0x02000101, 0x03000101, 0x02010101, 0x03010101,
42: 0x00020000, 0x01020000, 0x00030000, 0x01030000, 0x00020100, 0x01020100, 0x00030100, 0x01030100,
43: 0x00020001, 0x01020001, 0x00030001, 0x01030001, 0x00020101, 0x01020101, 0x00030101, 0x01030101,
44: 0x02020000, 0x03020000, 0x02030000, 0x03030000, 0x02020100, 0x03020100, 0x02030100, 0x03030100,
45: 0x02020001, 0x03020001, 0x02030001, 0x03030001, 0x02020101, 0x03020101, 0x02030101, 0x03030101,
46: 0x00000200, 0x01000200, 0x00010200, 0x01010200, 0x00000300, 0x01000300, 0x00010300, 0x01010300,
47: 0x00000201, 0x01000201, 0x00010201, 0x01010201, 0x00000301, 0x01000301, 0x00010301, 0x01010301,
48: 0x02000200, 0x03000200, 0x02010200, 0x03010200, 0x02000300, 0x03000300, 0x02010300, 0x03010300,
49: 0x02000201, 0x03000201, 0x02010201, 0x03010201, 0x02000301, 0x03000301, 0x02010301, 0x03010301,
50: 0x00020200, 0x01020200, 0x00030200, 0x01030200, 0x00020300, 0x01020300, 0x00030300, 0x01030300,
51: 0x00020201, 0x01020201, 0x00030201, 0x01030201, 0x00020301, 0x01020301, 0x00030301, 0x01030301,
52: 0x02020200, 0x03020200, 0x02030200, 0x03030200, 0x02020300, 0x03020300, 0x02030300, 0x03030300,
53: 0x02020201, 0x03020201, 0x02030201, 0x03030201, 0x02020301, 0x03020301, 0x02030301, 0x03030301,
54: 0x00000002, 0x01000002, 0x00010002, 0x01010002, 0x00000102, 0x01000102, 0x00010102, 0x01010102,
55: 0x00000003, 0x01000003, 0x00010003, 0x01010003, 0x00000103, 0x01000103, 0x00010103, 0x01010103,
56: 0x02000002, 0x03000002, 0x02010002, 0x03010002, 0x02000102, 0x03000102, 0x02010102, 0x03010102,
57: 0x02000003, 0x03000003, 0x02010003, 0x03010003, 0x02000103, 0x03000103, 0x02010103, 0x03010103,
58: 0x00020002, 0x01020002, 0x00030002, 0x01030002, 0x00020102, 0x01020102, 0x00030102, 0x01030102,
59: 0x00020003, 0x01020003, 0x00030003, 0x01030003, 0x00020103, 0x01020103, 0x00030103, 0x01030103,
60: 0x02020002, 0x03020002, 0x02030002, 0x03030002, 0x02020102, 0x03020102, 0x02030102, 0x03030102,
61: 0x02020003, 0x03020003, 0x02030003, 0x03030003, 0x02020103, 0x03020103, 0x02030103, 0x03030103,
62: 0x00000202, 0x01000202, 0x00010202, 0x01010202, 0x00000302, 0x01000302, 0x00010302, 0x01010302,
63: 0x00000203, 0x01000203, 0x00010203, 0x01010203, 0x00000303, 0x01000303, 0x00010303, 0x01010303,
64: 0x02000202, 0x03000202, 0x02010202, 0x03010202, 0x02000302, 0x03000302, 0x02010302, 0x03010302,
65: 0x02000203, 0x03000203, 0x02010203, 0x03010203, 0x02000303, 0x03000303, 0x02010303, 0x03010303,
66: 0x00020202, 0x01020202, 0x00030202, 0x01030202, 0x00020302, 0x01020302, 0x00030302, 0x01030302,
67: 0x00020203, 0x01020203, 0x00030203, 0x01030203, 0x00020303, 0x01020303, 0x00030303, 0x01030303,
68: 0x02020202, 0x03020202, 0x02030202, 0x03030202, 0x02020302, 0x03020302, 0x02030302, 0x03030302,
69: 0x02020203, 0x03020203, 0x02030203, 0x03030203, 0x02020303, 0x03020303, 0x02030303, 0x03030303,
70: };
71: unsigned long Remap_2_Planes_Upper[256] = {
72: 0x00000000, 0x04000000, 0x00040000, 0x04040000, 0x00000400, 0x04000400, 0x00040400, 0x04040400,
73: 0x00000004, 0x04000004, 0x00040004, 0x04040004, 0x00000404, 0x04000404, 0x00040404, 0x04040404,
74: 0x08000000, 0x0C000000, 0x08040000, 0x0C040000, 0x08000400, 0x0C000400, 0x08040400, 0x0C040400,
75: 0x08000004, 0x0C000004, 0x08040004, 0x0C040004, 0x08000404, 0x0C000404, 0x08040404, 0x0C040404,
76: 0x00080000, 0x04080000, 0x000C0000, 0x040C0000, 0x00080400, 0x04080400, 0x000C0400, 0x040C0400,
77: 0x00080004, 0x04080004, 0x000C0004, 0x040C0004, 0x00080404, 0x04080404, 0x000C0404, 0x040C0404,
78: 0x08080000, 0x0C080000, 0x080C0000, 0x0C0C0000, 0x08080400, 0x0C080400, 0x080C0400, 0x0C0C0400,
79: 0x08080004, 0x0C080004, 0x080C0004, 0x0C0C0004, 0x08080404, 0x0C080404, 0x080C0404, 0x0C0C0404,
80: 0x00000800, 0x04000800, 0x00040800, 0x04040800, 0x00000C00, 0x04000C00, 0x00040C00, 0x04040C00,
81: 0x00000804, 0x04000804, 0x00040804, 0x04040804, 0x00000C04, 0x04000C04, 0x00040C04, 0x04040C04,
82: 0x08000800, 0x0C000800, 0x08040800, 0x0C040800, 0x08000C00, 0x0C000C00, 0x08040C00, 0x0C040C00,
83: 0x08000804, 0x0C000804, 0x08040804, 0x0C040804, 0x08000C04, 0x0C000C04, 0x08040C04, 0x0C040C04,
84: 0x00080800, 0x04080800, 0x000C0800, 0x040C0800, 0x00080C00, 0x04080C00, 0x000C0C00, 0x040C0C00,
85: 0x00080804, 0x04080804, 0x000C0804, 0x040C0804, 0x00080C04, 0x04080C04, 0x000C0C04, 0x040C0C04,
86: 0x08080800, 0x0C080800, 0x080C0800, 0x0C0C0800, 0x08080C00, 0x0C080C00, 0x080C0C00, 0x0C0C0C00,
87: 0x08080804, 0x0C080804, 0x080C0804, 0x0C0C0804, 0x08080C04, 0x0C080C04, 0x080C0C04, 0x0C0C0C04,
88: 0x00000008, 0x04000008, 0x00040008, 0x04040008, 0x00000408, 0x04000408, 0x00040408, 0x04040408,
89: 0x0000000C, 0x0400000C, 0x0004000C, 0x0404000C, 0x0000040C, 0x0400040C, 0x0004040C, 0x0404040C,
90: 0x08000008, 0x0C000008, 0x08040008, 0x0C040008, 0x08000408, 0x0C000408, 0x08040408, 0x0C040408,
91: 0x0800000C, 0x0C00000C, 0x0804000C, 0x0C04000C, 0x0800040C, 0x0C00040C, 0x0804040C, 0x0C04040C,
92: 0x00080008, 0x04080008, 0x000C0008, 0x040C0008, 0x00080408, 0x04080408, 0x000C0408, 0x040C0408,
93: 0x0008000C, 0x0408000C, 0x000C000C, 0x040C000C, 0x0008040C, 0x0408040C, 0x000C040C, 0x040C040C,
94: 0x08080008, 0x0C080008, 0x080C0008, 0x0C0C0008, 0x08080408, 0x0C080408, 0x080C0408, 0x0C0C0408,
95: 0x0808000C, 0x0C08000C, 0x080C000C, 0x0C0C000C, 0x0808040C, 0x0C08040C, 0x080C040C, 0x0C0C040C,
96: 0x00000808, 0x04000808, 0x00040808, 0x04040808, 0x00000C08, 0x04000C08, 0x00040C08, 0x04040C08,
97: 0x0000080C, 0x0400080C, 0x0004080C, 0x0404080C, 0x00000C0C, 0x04000C0C, 0x00040C0C, 0x04040C0C,
98: 0x08000808, 0x0C000808, 0x08040808, 0x0C040808, 0x08000C08, 0x0C000C08, 0x08040C08, 0x0C040C08,
99: 0x0800080C, 0x0C00080C, 0x0804080C, 0x0C04080C, 0x08000C0C, 0x0C000C0C, 0x08040C0C, 0x0C040C0C,
100: 0x00080808, 0x04080808, 0x000C0808, 0x040C0808, 0x00080C08, 0x04080C08, 0x000C0C08, 0x040C0C08,
101: 0x0008080C, 0x0408080C, 0x000C080C, 0x040C080C, 0x00080C0C, 0x04080C0C, 0x000C0C0C, 0x040C0C0C,
102: 0x08080808, 0x0C080808, 0x080C0808, 0x0C0C0808, 0x08080C08, 0x0C080C08, 0x080C0C08, 0x0C0C0C08,
103: 0x0808080C, 0x0C08080C, 0x080C080C, 0x0C0C080C, 0x08080C0C, 0x0C080C0C, 0x080C0C0C, 0x0C0C0C0C,
104: };
105: unsigned long Remap_1_Plane[16] = {
106: 0x00000000+BASECOLOUR_LONG, 0x01000000+BASECOLOUR_LONG, 0x00010000+BASECOLOUR_LONG, 0x01010000+BASECOLOUR_LONG, 0x00000100+BASECOLOUR_LONG, 0x01000100+BASECOLOUR_LONG, 0x00010100+BASECOLOUR_LONG, 0x01010100+BASECOLOUR_LONG,
107: 0x00000001+BASECOLOUR_LONG, 0x01000001+BASECOLOUR_LONG, 0x00010001+BASECOLOUR_LONG, 0x01010001+BASECOLOUR_LONG, 0x00000101+BASECOLOUR_LONG, 0x01000101+BASECOLOUR_LONG, 0x00010101+BASECOLOUR_LONG, 0x01010101+BASECOLOUR_LONG,
108: };
109:
1.1.1.2 ! root 110:
! 111: /*-----------------------------------------------------------------------*/
1.1 root 112: /*
113: Update the STRGBPalette[] array with current colours for this raster line.
114:
1.1.1.2 ! root 115: Return 'ScrUpdateFlag', 0x80000000=Full update, 0x40000000=Update as palette changed
1.1 root 116: */
117: int AdjustLinePaletteRemap(void)
118: {
1.1.1.2 ! root 119: unsigned short *actHBLPal;
! 120: static int endiantable[16] = {0,2,1,3,8,10,9,11,4,6,5,7,12,14,13,15};
! 121: int i;
! 122: int v;
! 123: /* Copy palette and convert to RGB in display format */
! 124: actHBLPal = pHBLPalettes + (ScrY<<4); /* offset in palette */
! 125: for(i=0; i<16; i++)
! 126: {
! 127: v=*actHBLPal;
! 128: actHBLPal+=1;
! 129: v=v&0x777;
! 130: #if __BYTE_ORDER == 4321
! 131: STRGBPalette[endiantable[i]] = ST2RGB[v];
! 132: #else
! 133: STRGBPalette[i] = ST2RGB[v];
! 134: #endif
! 135: }
! 136: ScrUpdateFlag = *(short *)&HBLPaletteMasks[ScrY];
! 137: return ScrUpdateFlag;
1.1 root 138: }
139:
1.1.1.2 ! root 140:
! 141: /*-----------------------------------------------------------------------*/
1.1 root 142: /*
143: Run updates to palette(STRGBPalette[]) until get to screen line we are to convert from
144: */
145: void Convert_StartFrame(void)
146: {
147: int ecx;
148: ecx=STScreenStartHorizLine; /* Get #lines before conversion starts */
149: if( ecx==0 ) return;
150: ScrY=0;
151: do
152: {
153: AdjustLinePaletteRemap(); /* Update palette */
154: ++ScrY;
155: --ecx;
156: }
157: while( ecx );
158: }
159:
160:
161:
162:
163:
164: #define LOW_BUILD_PIXELS_0 \
165: { \
166: ebx &= 0x0f0f0f0f; \
167: ecx &= 0x0f0f0f0f; \
168: eax = ebx >> 12; \
169: eax |= ebx; \
170: edx = ecx >> 12; \
171: edx |= ecx; \
172: ebx = edx; \
173: ebx &= 0x00ff; \
174: ecx = Remap_2_Planes_Upper[ebx]; \
175: ebx = eax; \
176: ebx &= 0x00ff; \
177: ecx += Remap_2_Planes[ebx]; \
178: }
179:
180: #define LOW_BUILD_PIXELS_1 \
181: { \
182: ebx = edx; \
183: ebx = ebx >> 8; \
184: ebx &= 0x00ff; \
185: ecx = Remap_2_Planes_Upper[ebx]; \
186: ebx = eax; \
187: ebx = ebx >> 8; \
188: ebx &= 0x00ff; \
189: ecx += Remap_2_Planes[ebx]; \
190: }
191:
192: #define LOW_BUILD_PIXELS_2 \
193: { \
194: ebx = *edi; \
195: ecx = *(edi+1); \
196: ebx &= 0xf0f0f0f0; \
197: ecx &= 0xf0f0f0f0; \
198: ebx = ebx >> 4; \
199: eax = ebx; \
200: ebx = ebx >> 12; \
201: eax |= ebx; \
202: ecx = ecx >> 4; \
203: edx = ecx; \
204: ecx = ecx >> 12; \
205: edx |= ecx; \
206: ebx = edx; \
207: ebx &= 0x00ff; \
208: ecx = Remap_2_Planes_Upper[ebx]; \
209: ebx = eax; \
210: ebx &= 0x00ff; \
211: ecx += Remap_2_Planes[ebx]; \
212: }
213:
214: #define LOW_BUILD_PIXELS_3 \
215: { \
216: ebx = edx; \
217: ebx = ebx >> 8; \
218: ebx &= 0x00ff; \
219: ecx = Remap_2_Planes_Upper[ebx]; \
220: ebx = eax; \
221: ebx = ebx >> 8; \
222: ebx &= 0x00ff; \
223: ecx += Remap_2_Planes[ebx]; \
224: }
225:
226: /* Plot Low Resolution(320xH) 16-Bit pixels */
227: #define PLOT_LOW_320_16BIT(offset) \
228: { \
229: ebx = ecx; \
230: ebx &= 0x00ff; \
231: ecx = ecx >> 8; \
232: ebx = STRGBPalette[ebx]; \
233: esi[offset] = (unsigned short) ebx; \
234: ebx = ecx; \
235: ebx &= 0x00ff; \
236: ecx = ecx >> 8; \
237: ebx = STRGBPalette[ebx]; \
238: esi[offset+1] = (unsigned short) ebx; \
239: ebx = ecx; \
240: ebx &= 0x00ff; \
241: ecx = ecx >> 8; \
242: ebx = STRGBPalette[ebx]; \
243: esi[offset+2] = (unsigned short) ebx; \
244: ebx = ecx; \
245: ebx &= 0x00ff; \
246: ebx = STRGBPalette[ebx]; \
247: esi[offset+3] = (unsigned short) ebx; \
248: }
1.1.1.2 ! root 249:
! 250:
! 251:
! 252: #define MED_BUILD_PIXELS_0 \
! 253: { \
! 254: ebx &= 0x0f0f0f0f; \
! 255: eax = ebx; \
! 256: eax >>= 12; \
! 257: eax |= ebx; \
! 258: ebx = eax; \
! 259: ebx &= 0x000000ff; \
! 260: ecx = Remap_2_Planes[ebx]; \
! 261: }
! 262:
! 263: #define MED_BUILD_PIXELS_1 \
! 264: { \
! 265: ebx = eax; \
! 266: ebx >>=8; \
! 267: ebx &= 0x000000ff; \
! 268: ecx = Remap_2_Planes[ebx]; \
! 269: }
! 270:
! 271: #define MED_BUILD_PIXELS_2 \
! 272: { \
! 273: ebx = *edi; \
! 274: ebx &= 0xf0f0f0f0; \
! 275: ebx >>= 4; \
! 276: eax = ebx; \
! 277: ebx >>= 12; \
! 278: eax |= ebx; \
! 279: ebx = eax; \
! 280: ebx &= 0x000000ff; \
! 281: ecx = Remap_2_Planes[ebx]; \
! 282: }
! 283:
! 284: #define MED_BUILD_PIXELS_3 \
! 285: { \
! 286: ebx = eax; \
! 287: ebx >>= 8; \
! 288: ebx &= 0x000000ff; \
! 289: ecx = Remap_2_Planes[ebx]; \
! 290: }
! 291:
! 292: /* Plot Medium Resolution(640xH) 16-Bit pixels */
! 293: #define PLOT_MED_640_16BIT(offset) \
! 294: { \
! 295: ebx = ecx; \
! 296: ebx &= 0x000000ff; \
! 297: ecx >>= 8; \
! 298: ebx = STRGBPalette[ebx]; \
! 299: esi[offset] = (Uint16)ebx; \
! 300: ebx = ecx; \
! 301: ebx &= 0x000000ff; \
! 302: ecx >>= 8; \
! 303: ebx = STRGBPalette[ebx]; \
! 304: esi[offset+1] = (Uint16)ebx; \
! 305: ebx = ecx; \
! 306: ebx &= 0x000000ff; \
! 307: ecx >>= 8; \
! 308: ebx = STRGBPalette[ebx]; \
! 309: esi[offset+2] = (Uint16)ebx; \
! 310: ebx = ecx; \
! 311: ebx &= 0x000000ff; \
! 312: ebx = STRGBPalette[ebx]; \
! 313: esi[offset+3] = (Uint16)ebx; \
! 314: }
! 315:
! 316: /* Plot Medium Resolution(640xH) 16-Bit pixels (Double on Y) */
! 317: #define PLOT_MED_640_16BIT_DOUBLE_Y(offset) \
! 318: { \
! 319: ebx = ecx; \
! 320: ebx &= 0x000000ff; \
! 321: ecx >>= 8; \
! 322: ebx = STRGBPalette[ebx]; \
! 323: esi[offset] = (Uint16)ebx; \
! 324: esi[offset+(int)ebp/2] = (Uint16)ebx; \
! 325: ebx = ecx; \
! 326: ebx &= 0x000000ff; \
! 327: ecx >>= 8; \
! 328: ebx = STRGBPalette[ebx]; \
! 329: esi[offset+1] = (Uint16)ebx; \
! 330: esi[offset+1+(int)ebp/2] = (Uint16)ebx; \
! 331: ebx = ecx; \
! 332: ebx &= 0x000000ff; \
! 333: ecx >>= 8; \
! 334: ebx = STRGBPalette[ebx]; \
! 335: esi[offset+2] = (Uint16)ebx; \
! 336: esi[offset+2+(int)ebp/2] = (Uint16)ebx; \
! 337: ebx = ecx; \
! 338: ebx &= 0x000000ff; \
! 339: ebx = STRGBPalette[ebx]; \
! 340: esi[offset+3] = (Uint16)ebx; \
! 341: esi[offset+3+(int)ebp/2] = (Uint16)ebx; \
! 342: }
! 343:
! 344:
! 345: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
! 346: #define PLOT_SPEC512_LEFT_LOW_320_16BIT(offset) \
! 347: { \
! 348: ecx &= 0x000000ff; \
! 349: ebx = STRGBPalette[ecx]; \
! 350: esi[offset] = (Uint16)ebx; \
! 351: }
! 352: /*
! 353: __asm and ecx,0x000000ff \
! 354: __asm mov ebx,DWORD PTR STRGBPalette[ecx*4] \
! 355: __asm mov offset[esi],bx
! 356: */
! 357:
! 358: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
! 359: #define PLOT_SPEC512_MID_320_16BIT(offset) \
! 360: { \
! 361: ebx = ecx; \
! 362: ebx &= 0x000000ff; \
! 363: ecx >>= 8; \
! 364: ebx = STRGBPalette[ebx]; \
! 365: esi[offset] = (Uint16)ebx; \
! 366: ebx = ecx; \
! 367: ebx &= 0x000000ff; \
! 368: ecx >>= 8; \
! 369: ebx = STRGBPalette[ebx]; \
! 370: esi[offset+1] = (Uint16)ebx; \
! 371: ebx = ecx; \
! 372: ebx &= 0x000000ff; \
! 373: ecx >>= 8; \
! 374: ebx = STRGBPalette[ebx]; \
! 375: esi[offset+2] = (Uint16)ebx; \
! 376: ebx = ecx; \
! 377: ebx &= 0x000000ff; \
! 378: ebx = STRGBPalette[ebx]; \
! 379: esi[offset+3] = (Uint16)ebx; \
! 380: }
! 381: /*
! 382: __asm mov ebx,ecx \
! 383: __asm and ebx,0x000000ff \
! 384: __asm shr ecx,8 \
! 385: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 386: __asm mov offset[esi],bx \
! 387: __asm mov ebx,ecx \
! 388: __asm and ebx,0x000000ff \
! 389: __asm shr ecx,8 \
! 390: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 391: __asm mov offset[esi+2],bx \
! 392: __asm mov ebx,ecx \
! 393: __asm and ebx,0x000000ff \
! 394: __asm shr ecx,8 \
! 395: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 396: __asm mov offset[esi+4],bx \
! 397: __asm mov ebx,ecx \
! 398: __asm and ebx,0x000000ff \
! 399: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 400: __asm mov offset[esi+6],bx
! 401: */
! 402:
! 403: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
! 404: #define PLOT_SPEC512_END_LOW_320_16BIT(offset) \
! 405: { \
! 406: ebx = ecx; \
! 407: ebx &= 0x000000ff; \
! 408: ecx >>= 8; \
! 409: ebx = STRGBPalette[ebx]; \
! 410: esi[offset] = (Uint16)ebx; \
! 411: ebx = ecx; \
! 412: ebx &= 0x000000ff; \
! 413: ecx >>= 8; \
! 414: ebx = STRGBPalette[ebx]; \
! 415: esi[offset+1] = (Uint16)ebx; \
! 416: ebx = ecx; \
! 417: ebx &= 0x000000ff; \
! 418: ecx >>= 8; \
! 419: ebx = STRGBPalette[ebx]; \
! 420: esi[offset+2] = (Uint16)ebx; \
! 421: }
1.1 root 422: /*
1.1.1.2 ! root 423: __asm mov ebx,ecx \
! 424: __asm and ebx,0x000000ff \
! 425: __asm shr ecx,8 \
! 426: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 427: __asm mov offset[esi],bx \
! 428: __asm mov ebx,ecx \
! 429: __asm and ebx,0x000000ff \
! 430: __asm shr ecx,8 \
! 431: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 432: __asm mov offset[esi+2],bx \
! 433: __asm mov ebx,ecx \
! 434: __asm and ebx,0x000000ff \
! 435: __asm shr ecx,8 \
! 436: __asm mov ebx,DWORD PTR STRGBPalette[ebx*4] \
! 437: __asm mov offset[esi+4],bx
1.1 root 438: */
439:
440:
441:
442: /* Conversion routines */
443: #include "convert/low320x16.c" /* LowRes To 320xH x 16-bit colour */
444: #include "convert/low640x16.c" /* LowRes To 640xH x 16-bit colour */
445: #include "convert/med640x16.c" /* MediumRes To 640xH x 16-bit colour */
446: #include "convert/low320x8.c" /* LowRes To 320xH x 8-bit colour */
447: #include "convert/low640x8.c" /* LowRes To 640xH x 8-bit colour */
448: #include "convert/med640x8.c" /* MediumRes To 640xH x 8-bit colour */
449: #include "convert/high640x8.c" /* HighRes To 640xH x 8-bit colour */
450: #include "convert/high640x1.c" /* HighRes To 640xH x 1-bit colour */
451: #include "convert/spec320x16.c" /* Spectrum 512 To 320xH x 16-bit colour */
452: #include "convert/spec640x16.c" /* Spectrum 512 To 640xH x 16-bit colour */
453:
454: #include "convert/vdi16.c" /* VDI x 16 colour */
455: #include "convert/vdi4.c" /* VDI x 4 colour */
456: #include "convert/vdi2.c" /* VDI x 2 colour */
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