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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:
1.1 root 19: #include "main.h"
20: #include "screen.h"
21: #include "screenConvert.h"
22: #include "spec512.h"
23: #include "vdi.h"
24: #include "video.h"
25:
1.1.1.3 root 26: /*#define TEST_SCREEN_UPDATE*/ /* Enable to see partial screen update */
1.1 root 27:
28: int ScrX,ScrY; /* Locals */
29: int ScrUpdateFlag; /* Bit mask of how to update screen */
30: BOOL bScrDoubleY; /* TRUE if double on Y */
1.1.1.3 root 31: Uint32 PixelWorkspace[4]; /* Workspace to store pixels to so can print in right order for Spec512 */
1.1 root 32:
33: /* Remap tables to convert from plane format to byte-per-pixel (Upper is for 4-Planes so if shifted by 2) */
1.1.1.3 root 34: Uint32 Remap_2_Planes[256] = {
1.1 root 35: 0x00000000, 0x01000000, 0x00010000, 0x01010000, 0x00000100, 0x01000100, 0x00010100, 0x01010100,
36: 0x00000001, 0x01000001, 0x00010001, 0x01010001, 0x00000101, 0x01000101, 0x00010101, 0x01010101,
37: 0x02000000, 0x03000000, 0x02010000, 0x03010000, 0x02000100, 0x03000100, 0x02010100, 0x03010100,
38: 0x02000001, 0x03000001, 0x02010001, 0x03010001, 0x02000101, 0x03000101, 0x02010101, 0x03010101,
39: 0x00020000, 0x01020000, 0x00030000, 0x01030000, 0x00020100, 0x01020100, 0x00030100, 0x01030100,
40: 0x00020001, 0x01020001, 0x00030001, 0x01030001, 0x00020101, 0x01020101, 0x00030101, 0x01030101,
41: 0x02020000, 0x03020000, 0x02030000, 0x03030000, 0x02020100, 0x03020100, 0x02030100, 0x03030100,
42: 0x02020001, 0x03020001, 0x02030001, 0x03030001, 0x02020101, 0x03020101, 0x02030101, 0x03030101,
43: 0x00000200, 0x01000200, 0x00010200, 0x01010200, 0x00000300, 0x01000300, 0x00010300, 0x01010300,
44: 0x00000201, 0x01000201, 0x00010201, 0x01010201, 0x00000301, 0x01000301, 0x00010301, 0x01010301,
45: 0x02000200, 0x03000200, 0x02010200, 0x03010200, 0x02000300, 0x03000300, 0x02010300, 0x03010300,
46: 0x02000201, 0x03000201, 0x02010201, 0x03010201, 0x02000301, 0x03000301, 0x02010301, 0x03010301,
47: 0x00020200, 0x01020200, 0x00030200, 0x01030200, 0x00020300, 0x01020300, 0x00030300, 0x01030300,
48: 0x00020201, 0x01020201, 0x00030201, 0x01030201, 0x00020301, 0x01020301, 0x00030301, 0x01030301,
49: 0x02020200, 0x03020200, 0x02030200, 0x03030200, 0x02020300, 0x03020300, 0x02030300, 0x03030300,
50: 0x02020201, 0x03020201, 0x02030201, 0x03030201, 0x02020301, 0x03020301, 0x02030301, 0x03030301,
51: 0x00000002, 0x01000002, 0x00010002, 0x01010002, 0x00000102, 0x01000102, 0x00010102, 0x01010102,
52: 0x00000003, 0x01000003, 0x00010003, 0x01010003, 0x00000103, 0x01000103, 0x00010103, 0x01010103,
53: 0x02000002, 0x03000002, 0x02010002, 0x03010002, 0x02000102, 0x03000102, 0x02010102, 0x03010102,
54: 0x02000003, 0x03000003, 0x02010003, 0x03010003, 0x02000103, 0x03000103, 0x02010103, 0x03010103,
55: 0x00020002, 0x01020002, 0x00030002, 0x01030002, 0x00020102, 0x01020102, 0x00030102, 0x01030102,
56: 0x00020003, 0x01020003, 0x00030003, 0x01030003, 0x00020103, 0x01020103, 0x00030103, 0x01030103,
57: 0x02020002, 0x03020002, 0x02030002, 0x03030002, 0x02020102, 0x03020102, 0x02030102, 0x03030102,
58: 0x02020003, 0x03020003, 0x02030003, 0x03030003, 0x02020103, 0x03020103, 0x02030103, 0x03030103,
59: 0x00000202, 0x01000202, 0x00010202, 0x01010202, 0x00000302, 0x01000302, 0x00010302, 0x01010302,
60: 0x00000203, 0x01000203, 0x00010203, 0x01010203, 0x00000303, 0x01000303, 0x00010303, 0x01010303,
61: 0x02000202, 0x03000202, 0x02010202, 0x03010202, 0x02000302, 0x03000302, 0x02010302, 0x03010302,
62: 0x02000203, 0x03000203, 0x02010203, 0x03010203, 0x02000303, 0x03000303, 0x02010303, 0x03010303,
63: 0x00020202, 0x01020202, 0x00030202, 0x01030202, 0x00020302, 0x01020302, 0x00030302, 0x01030302,
64: 0x00020203, 0x01020203, 0x00030203, 0x01030203, 0x00020303, 0x01020303, 0x00030303, 0x01030303,
65: 0x02020202, 0x03020202, 0x02030202, 0x03030202, 0x02020302, 0x03020302, 0x02030302, 0x03030302,
66: 0x02020203, 0x03020203, 0x02030203, 0x03030203, 0x02020303, 0x03020303, 0x02030303, 0x03030303,
67: };
1.1.1.3 root 68:
69: Uint32 Remap_2_Planes_Upper[256] = {
1.1 root 70: 0x00000000, 0x04000000, 0x00040000, 0x04040000, 0x00000400, 0x04000400, 0x00040400, 0x04040400,
71: 0x00000004, 0x04000004, 0x00040004, 0x04040004, 0x00000404, 0x04000404, 0x00040404, 0x04040404,
72: 0x08000000, 0x0C000000, 0x08040000, 0x0C040000, 0x08000400, 0x0C000400, 0x08040400, 0x0C040400,
73: 0x08000004, 0x0C000004, 0x08040004, 0x0C040004, 0x08000404, 0x0C000404, 0x08040404, 0x0C040404,
74: 0x00080000, 0x04080000, 0x000C0000, 0x040C0000, 0x00080400, 0x04080400, 0x000C0400, 0x040C0400,
75: 0x00080004, 0x04080004, 0x000C0004, 0x040C0004, 0x00080404, 0x04080404, 0x000C0404, 0x040C0404,
76: 0x08080000, 0x0C080000, 0x080C0000, 0x0C0C0000, 0x08080400, 0x0C080400, 0x080C0400, 0x0C0C0400,
77: 0x08080004, 0x0C080004, 0x080C0004, 0x0C0C0004, 0x08080404, 0x0C080404, 0x080C0404, 0x0C0C0404,
78: 0x00000800, 0x04000800, 0x00040800, 0x04040800, 0x00000C00, 0x04000C00, 0x00040C00, 0x04040C00,
79: 0x00000804, 0x04000804, 0x00040804, 0x04040804, 0x00000C04, 0x04000C04, 0x00040C04, 0x04040C04,
80: 0x08000800, 0x0C000800, 0x08040800, 0x0C040800, 0x08000C00, 0x0C000C00, 0x08040C00, 0x0C040C00,
81: 0x08000804, 0x0C000804, 0x08040804, 0x0C040804, 0x08000C04, 0x0C000C04, 0x08040C04, 0x0C040C04,
82: 0x00080800, 0x04080800, 0x000C0800, 0x040C0800, 0x00080C00, 0x04080C00, 0x000C0C00, 0x040C0C00,
83: 0x00080804, 0x04080804, 0x000C0804, 0x040C0804, 0x00080C04, 0x04080C04, 0x000C0C04, 0x040C0C04,
84: 0x08080800, 0x0C080800, 0x080C0800, 0x0C0C0800, 0x08080C00, 0x0C080C00, 0x080C0C00, 0x0C0C0C00,
85: 0x08080804, 0x0C080804, 0x080C0804, 0x0C0C0804, 0x08080C04, 0x0C080C04, 0x080C0C04, 0x0C0C0C04,
86: 0x00000008, 0x04000008, 0x00040008, 0x04040008, 0x00000408, 0x04000408, 0x00040408, 0x04040408,
87: 0x0000000C, 0x0400000C, 0x0004000C, 0x0404000C, 0x0000040C, 0x0400040C, 0x0004040C, 0x0404040C,
88: 0x08000008, 0x0C000008, 0x08040008, 0x0C040008, 0x08000408, 0x0C000408, 0x08040408, 0x0C040408,
89: 0x0800000C, 0x0C00000C, 0x0804000C, 0x0C04000C, 0x0800040C, 0x0C00040C, 0x0804040C, 0x0C04040C,
90: 0x00080008, 0x04080008, 0x000C0008, 0x040C0008, 0x00080408, 0x04080408, 0x000C0408, 0x040C0408,
91: 0x0008000C, 0x0408000C, 0x000C000C, 0x040C000C, 0x0008040C, 0x0408040C, 0x000C040C, 0x040C040C,
92: 0x08080008, 0x0C080008, 0x080C0008, 0x0C0C0008, 0x08080408, 0x0C080408, 0x080C0408, 0x0C0C0408,
93: 0x0808000C, 0x0C08000C, 0x080C000C, 0x0C0C000C, 0x0808040C, 0x0C08040C, 0x080C040C, 0x0C0C040C,
94: 0x00000808, 0x04000808, 0x00040808, 0x04040808, 0x00000C08, 0x04000C08, 0x00040C08, 0x04040C08,
95: 0x0000080C, 0x0400080C, 0x0004080C, 0x0404080C, 0x00000C0C, 0x04000C0C, 0x00040C0C, 0x04040C0C,
96: 0x08000808, 0x0C000808, 0x08040808, 0x0C040808, 0x08000C08, 0x0C000C08, 0x08040C08, 0x0C040C08,
97: 0x0800080C, 0x0C00080C, 0x0804080C, 0x0C04080C, 0x08000C0C, 0x0C000C0C, 0x08040C0C, 0x0C040C0C,
98: 0x00080808, 0x04080808, 0x000C0808, 0x040C0808, 0x00080C08, 0x04080C08, 0x000C0C08, 0x040C0C08,
99: 0x0008080C, 0x0408080C, 0x000C080C, 0x040C080C, 0x00080C0C, 0x04080C0C, 0x000C0C0C, 0x040C0C0C,
100: 0x08080808, 0x0C080808, 0x080C0808, 0x0C0C0808, 0x08080C08, 0x0C080C08, 0x080C0C08, 0x0C0C0C08,
101: 0x0808080C, 0x0C08080C, 0x080C080C, 0x0C0C080C, 0x08080C0C, 0x0C080C0C, 0x080C0C0C, 0x0C0C0C0C,
102: };
1.1.1.3 root 103:
104: Uint32 Remap_1_Plane[16] = {
1.1 root 105: 0x00000000+BASECOLOUR_LONG, 0x01000000+BASECOLOUR_LONG, 0x00010000+BASECOLOUR_LONG, 0x01010000+BASECOLOUR_LONG, 0x00000100+BASECOLOUR_LONG, 0x01000100+BASECOLOUR_LONG, 0x00010100+BASECOLOUR_LONG, 0x01010100+BASECOLOUR_LONG,
106: 0x00000001+BASECOLOUR_LONG, 0x01000001+BASECOLOUR_LONG, 0x00010001+BASECOLOUR_LONG, 0x01010001+BASECOLOUR_LONG, 0x00000101+BASECOLOUR_LONG, 0x01000101+BASECOLOUR_LONG, 0x00010101+BASECOLOUR_LONG, 0x01010101+BASECOLOUR_LONG,
107: };
108:
1.1.1.4 ! root 109: #if SDL_BYTEORDER == SDL_BIG_ENDIAN
! 110: #define LSWAP(x) (((x&0x000000ff)<<24)| \
! 111: ((x&0x0000ff00)<<8)| \
! 112: ((x&0x00ff0000)>>8)| \
! 113: ((x&0xff000000)>>24))
! 114: #else
! 115: #define LSWAP(x) (x)
! 116: #endif
1.1.1.2 root 117:
118: /*-----------------------------------------------------------------------*/
1.1 root 119: /*
120: Update the STRGBPalette[] array with current colours for this raster line.
121:
1.1.1.2 root 122: Return 'ScrUpdateFlag', 0x80000000=Full update, 0x40000000=Update as palette changed
1.1 root 123: */
124: int AdjustLinePaletteRemap(void)
125: {
1.1.1.2 root 126: unsigned short *actHBLPal;
127: static int endiantable[16] = {0,2,1,3,8,10,9,11,4,6,5,7,12,14,13,15};
128: int i;
129: int v;
130: /* Copy palette and convert to RGB in display format */
131: actHBLPal = pHBLPalettes + (ScrY<<4); /* offset in palette */
132: for(i=0; i<16; i++)
133: {
134: v=*actHBLPal;
135: actHBLPal+=1;
136: v=v&0x777;
1.1.1.3 root 137: #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1.1.1.2 root 138: STRGBPalette[endiantable[i]] = ST2RGB[v];
139: #else
140: STRGBPalette[i] = ST2RGB[v];
141: #endif
142: }
1.1.1.3 root 143: ScrUpdateFlag = HBLPaletteMasks[ScrY];
1.1.1.2 root 144: return ScrUpdateFlag;
1.1 root 145: }
146:
1.1.1.2 root 147:
148: /*-----------------------------------------------------------------------*/
1.1 root 149: /*
150: Run updates to palette(STRGBPalette[]) until get to screen line we are to convert from
151: */
152: void Convert_StartFrame(void)
153: {
154: int ecx;
155: ecx=STScreenStartHorizLine; /* Get #lines before conversion starts */
156: if( ecx==0 ) return;
157: ScrY=0;
158: do
159: {
160: AdjustLinePaletteRemap(); /* Update palette */
161: ++ScrY;
162: --ecx;
163: }
164: while( ecx );
165: }
166:
167:
168:
169:
170:
171: #define LOW_BUILD_PIXELS_0 \
172: { \
173: ebx &= 0x0f0f0f0f; \
174: ecx &= 0x0f0f0f0f; \
175: eax = ebx >> 12; \
176: eax |= ebx; \
177: edx = ecx >> 12; \
178: edx |= ecx; \
179: ebx = edx; \
180: ebx &= 0x00ff; \
181: ecx = Remap_2_Planes_Upper[ebx]; \
182: ebx = eax; \
183: ebx &= 0x00ff; \
184: ecx += Remap_2_Planes[ebx]; \
185: }
186:
187: #define LOW_BUILD_PIXELS_1 \
188: { \
189: ebx = edx; \
190: ebx = ebx >> 8; \
191: ebx &= 0x00ff; \
192: ecx = Remap_2_Planes_Upper[ebx]; \
193: ebx = eax; \
194: ebx = ebx >> 8; \
195: ebx &= 0x00ff; \
196: ecx += Remap_2_Planes[ebx]; \
197: }
198:
199: #define LOW_BUILD_PIXELS_2 \
200: { \
201: ebx = *edi; \
202: ecx = *(edi+1); \
203: ebx &= 0xf0f0f0f0; \
204: ecx &= 0xf0f0f0f0; \
205: ebx = ebx >> 4; \
206: eax = ebx; \
207: ebx = ebx >> 12; \
208: eax |= ebx; \
209: ecx = ecx >> 4; \
210: edx = ecx; \
211: ecx = ecx >> 12; \
212: edx |= ecx; \
213: ebx = edx; \
214: ebx &= 0x00ff; \
215: ecx = Remap_2_Planes_Upper[ebx]; \
216: ebx = eax; \
217: ebx &= 0x00ff; \
218: ecx += Remap_2_Planes[ebx]; \
219: }
220:
221: #define LOW_BUILD_PIXELS_3 \
222: { \
223: ebx = edx; \
224: ebx = ebx >> 8; \
225: ebx &= 0x00ff; \
226: ecx = Remap_2_Planes_Upper[ebx]; \
227: ebx = eax; \
228: ebx = ebx >> 8; \
229: ebx &= 0x00ff; \
230: ecx += Remap_2_Planes[ebx]; \
231: }
232:
1.1.1.2 root 233:
234: #define MED_BUILD_PIXELS_0 \
235: { \
236: ebx &= 0x0f0f0f0f; \
237: eax = ebx; \
238: eax >>= 12; \
239: eax |= ebx; \
240: ebx = eax; \
241: ebx &= 0x000000ff; \
242: ecx = Remap_2_Planes[ebx]; \
243: }
244:
245: #define MED_BUILD_PIXELS_1 \
246: { \
247: ebx = eax; \
248: ebx >>=8; \
249: ebx &= 0x000000ff; \
250: ecx = Remap_2_Planes[ebx]; \
251: }
252:
253: #define MED_BUILD_PIXELS_2 \
254: { \
255: ebx = *edi; \
256: ebx &= 0xf0f0f0f0; \
257: ebx >>= 4; \
258: eax = ebx; \
259: ebx >>= 12; \
260: eax |= ebx; \
261: ebx = eax; \
262: ebx &= 0x000000ff; \
263: ecx = Remap_2_Planes[ebx]; \
264: }
265:
266: #define MED_BUILD_PIXELS_3 \
267: { \
268: ebx = eax; \
269: ebx >>= 8; \
270: ebx &= 0x000000ff; \
271: ecx = Remap_2_Planes[ebx]; \
272: }
273:
1.1.1.3 root 274:
275: /* Routines to create 'ecx' pixels - MUST be called in this order */
276: #define HIGH_BUILD_PIXELS_0 \
277: { \
278: eax = ebx; \
279: eax &= 0x0000000f; \
280: }
281: /*
282: __asm mov eax,ebx \
283: __asm and eax,0x0000000f
284: */
285:
286: #define HIGH_BUILD_PIXELS_1 \
287: { \
288: eax = ebx; \
289: eax >>= 4; \
290: eax &= 0x0000000f;\
291: }
292: /*
293: __asm mov eax,ebx \
294: __asm shr eax,4 \
295: __asm and eax,0x0000000f
296: */
297:
298: #define HIGH_BUILD_PIXELS_2 \
299: { \
300: eax = ebx; \
301: eax >>= 8; \
302: eax &= 0x0000000f;\
303: }
304: /*
305: __asm mov eax,ebx \
306: __asm shr eax,8 \
307: __asm and eax,0x0000000f
308: */
309:
310: #define HIGH_BUILD_PIXELS_3 \
311: { \
312: eax = ebx; \
313: eax >>= 12; \
314: eax &= 0x0000000f;\
315: }
316: /*
317: __asm mov eax,ebx \
318: __asm shr eax,12 \
319: __asm and eax,0x0000000f
320: */
321:
322:
323: /* Plot Low Resolution (320xH) 16-Bit pixels */
324: #define PLOT_LOW_320_16BIT(offset) \
325: { \
326: ebx = ecx; \
327: ebx &= 0x00ff; \
328: ecx = ecx >> 8; \
329: ebx = STRGBPalette[ebx]; \
330: esi[offset] = (unsigned short) ebx; \
331: ebx = ecx; \
332: ebx &= 0x00ff; \
333: ecx = ecx >> 8; \
334: ebx = STRGBPalette[ebx]; \
335: esi[offset+1] = (unsigned short) ebx; \
336: ebx = ecx; \
337: ebx &= 0x00ff; \
338: ecx = ecx >> 8; \
339: ebx = STRGBPalette[ebx]; \
340: esi[offset+2] = (unsigned short) ebx; \
341: ebx = ecx; \
342: ebx &= 0x00ff; \
343: ebx = STRGBPalette[ebx]; \
344: esi[offset+3] = (unsigned short) ebx; \
345: }
346:
347: /* Plot Low Resolution (640xH) 16-Bit pixels */
348: #define PLOT_LOW_640_16BIT(offset) \
349: { \
350: ebx = ecx; \
351: ebx &= 0x000000ff; \
352: ecx >>= 8; \
353: ebx = STRGBPalette[ebx]; \
354: esi[offset] = ebx; \
355: ebx = ecx; \
356: ebx &= 0x000000ff; \
357: ecx >>= 8; \
358: ebx = STRGBPalette[ebx]; \
359: esi[offset+1] = ebx; \
360: ebx = ecx; \
361: ebx &= 0x000000ff; \
362: ecx >>= 8; \
363: ebx = STRGBPalette[ebx]; \
364: esi[offset+2] = ebx; \
365: ebx = ecx; \
366: ebx &= 0x000000ff; \
367: ebx = STRGBPalette[ebx]; \
368: esi[offset+3] = ebx; \
369: }
370:
371: /* Plot Low Resolution (640xH) 16-Bit pixels (Double on Y) */
372: #define PLOT_LOW_640_16BIT_DOUBLE_Y(offset) \
373: { \
374: ebx = ecx; \
375: ebx &= 0x000000ff; \
376: ecx >>= 8; \
377: ebx = STRGBPalette[ebx]; \
378: esi[offset] = ebx; \
379: esi[offset+PCScreenBytesPerLine/4] = ebx; \
380: ebx = ecx; \
381: ebx &= 0x000000ff; \
382: ecx >>= 8; \
383: ebx = STRGBPalette[ebx]; \
384: esi[offset+1] = ebx; \
385: esi[offset+1+PCScreenBytesPerLine/4] = ebx; \
386: ebx = ecx; \
387: ebx &= 0x000000ff; \
388: ecx >>= 8; \
389: ebx = STRGBPalette[ebx]; \
390: esi[offset+2] = ebx; \
391: esi[offset+2+PCScreenBytesPerLine/4] = ebx; \
392: ebx = ecx; \
393: ebx &= 0x000000ff; \
394: ebx = STRGBPalette[ebx]; \
395: esi[offset+3] = ebx; \
396: esi[offset+3+PCScreenBytesPerLine/4] = ebx; \
397: }
398:
399:
1.1.1.2 root 400: /* Plot Medium Resolution(640xH) 16-Bit pixels */
401: #define PLOT_MED_640_16BIT(offset) \
402: { \
403: ebx = ecx; \
404: ebx &= 0x000000ff; \
405: ecx >>= 8; \
406: ebx = STRGBPalette[ebx]; \
407: esi[offset] = (Uint16)ebx; \
408: ebx = ecx; \
409: ebx &= 0x000000ff; \
410: ecx >>= 8; \
411: ebx = STRGBPalette[ebx]; \
412: esi[offset+1] = (Uint16)ebx; \
413: ebx = ecx; \
414: ebx &= 0x000000ff; \
415: ecx >>= 8; \
416: ebx = STRGBPalette[ebx]; \
417: esi[offset+2] = (Uint16)ebx; \
418: ebx = ecx; \
419: ebx &= 0x000000ff; \
420: ebx = STRGBPalette[ebx]; \
421: esi[offset+3] = (Uint16)ebx; \
422: }
423:
424: /* Plot Medium Resolution(640xH) 16-Bit pixels (Double on Y) */
425: #define PLOT_MED_640_16BIT_DOUBLE_Y(offset) \
426: { \
427: ebx = ecx; \
428: ebx &= 0x000000ff; \
429: ecx >>= 8; \
430: ebx = STRGBPalette[ebx]; \
431: esi[offset] = (Uint16)ebx; \
1.1.1.3 root 432: esi[offset+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 433: ebx = ecx; \
434: ebx &= 0x000000ff; \
435: ecx >>= 8; \
436: ebx = STRGBPalette[ebx]; \
437: esi[offset+1] = (Uint16)ebx; \
1.1.1.3 root 438: esi[offset+1+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 439: ebx = ecx; \
440: ebx &= 0x000000ff; \
441: ecx >>= 8; \
442: ebx = STRGBPalette[ebx]; \
443: esi[offset+2] = (Uint16)ebx; \
1.1.1.3 root 444: esi[offset+2+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 445: ebx = ecx; \
446: ebx &= 0x000000ff; \
447: ebx = STRGBPalette[ebx]; \
448: esi[offset+3] = (Uint16)ebx; \
1.1.1.3 root 449: esi[offset+3+PCScreenBytesPerLine/2] = (Uint16)ebx; \
450: }
451:
452:
453: /* Plot High Resolution (640xH) 8-Bit pixels */
454: #define PLOT_HIGH_640_8BIT(offset) \
455: { \
1.1.1.4 ! root 456: esi[offset] = LSWAP(Remap_1_Plane[eax]); \
1.1.1.2 root 457: }
458:
459:
460: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
461: #define PLOT_SPEC512_LEFT_LOW_320_16BIT(offset) \
462: { \
463: ecx &= 0x000000ff; \
464: ebx = STRGBPalette[ecx]; \
465: esi[offset] = (Uint16)ebx; \
466: }
467:
468: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
469: #define PLOT_SPEC512_MID_320_16BIT(offset) \
470: { \
471: ebx = ecx; \
472: ebx &= 0x000000ff; \
473: ecx >>= 8; \
474: ebx = STRGBPalette[ebx]; \
475: esi[offset] = (Uint16)ebx; \
476: ebx = ecx; \
477: ebx &= 0x000000ff; \
478: ecx >>= 8; \
479: ebx = STRGBPalette[ebx]; \
480: esi[offset+1] = (Uint16)ebx; \
481: ebx = ecx; \
482: ebx &= 0x000000ff; \
483: ecx >>= 8; \
484: ebx = STRGBPalette[ebx]; \
485: esi[offset+2] = (Uint16)ebx; \
486: ebx = ecx; \
487: ebx &= 0x000000ff; \
488: ebx = STRGBPalette[ebx]; \
489: esi[offset+3] = (Uint16)ebx; \
490: }
491:
492: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
493: #define PLOT_SPEC512_END_LOW_320_16BIT(offset) \
494: { \
495: ebx = ecx; \
496: ebx &= 0x000000ff; \
497: ecx >>= 8; \
498: ebx = STRGBPalette[ebx]; \
499: esi[offset] = (Uint16)ebx; \
500: ebx = ecx; \
501: ebx &= 0x000000ff; \
502: ecx >>= 8; \
503: ebx = STRGBPalette[ebx]; \
504: esi[offset+1] = (Uint16)ebx; \
505: ebx = ecx; \
506: ebx &= 0x000000ff; \
507: ecx >>= 8; \
508: ebx = STRGBPalette[ebx]; \
509: esi[offset+2] = (Uint16)ebx; \
510: }
1.1 root 511:
512:
513:
514: /* Conversion routines */
515: #include "convert/low320x16.c" /* LowRes To 320xH x 16-bit colour */
516: #include "convert/low640x16.c" /* LowRes To 640xH x 16-bit colour */
517: #include "convert/med640x16.c" /* MediumRes To 640xH x 16-bit colour */
518: #include "convert/low320x8.c" /* LowRes To 320xH x 8-bit colour */
519: #include "convert/low640x8.c" /* LowRes To 640xH x 8-bit colour */
520: #include "convert/med640x8.c" /* MediumRes To 640xH x 8-bit colour */
521: #include "convert/high640x8.c" /* HighRes To 640xH x 8-bit colour */
522: #include "convert/high640x1.c" /* HighRes To 640xH x 1-bit colour */
523: #include "convert/spec320x16.c" /* Spectrum 512 To 320xH x 16-bit colour */
524: #include "convert/spec640x16.c" /* Spectrum 512 To 640xH x 16-bit colour */
525:
526: #include "convert/vdi16.c" /* VDI x 16 colour */
527: #include "convert/vdi4.c" /* VDI x 4 colour */
528: #include "convert/vdi2.c" /* VDI x 2 colour */
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