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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>
1.1.1.5 ! root 18: #include <SDL_endian.h>
1.1.1.2 root 19:
1.1 root 20: #include "main.h"
21: #include "screen.h"
22: #include "screenConvert.h"
23: #include "spec512.h"
24: #include "vdi.h"
25: #include "video.h"
26:
1.1.1.3 root 27: /*#define TEST_SCREEN_UPDATE*/ /* Enable to see partial screen update */
1.1 root 28:
29: int ScrX,ScrY; /* Locals */
30: int ScrUpdateFlag; /* Bit mask of how to update screen */
31: BOOL bScrDoubleY; /* TRUE if double on Y */
1.1.1.3 root 32: Uint32 PixelWorkspace[4]; /* Workspace to store pixels to so can print in right order for Spec512 */
1.1 root 33:
34: /* 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 35: Uint32 Remap_2_Planes[256] = {
1.1 root 36: 0x00000000, 0x01000000, 0x00010000, 0x01010000, 0x00000100, 0x01000100, 0x00010100, 0x01010100,
37: 0x00000001, 0x01000001, 0x00010001, 0x01010001, 0x00000101, 0x01000101, 0x00010101, 0x01010101,
38: 0x02000000, 0x03000000, 0x02010000, 0x03010000, 0x02000100, 0x03000100, 0x02010100, 0x03010100,
39: 0x02000001, 0x03000001, 0x02010001, 0x03010001, 0x02000101, 0x03000101, 0x02010101, 0x03010101,
40: 0x00020000, 0x01020000, 0x00030000, 0x01030000, 0x00020100, 0x01020100, 0x00030100, 0x01030100,
41: 0x00020001, 0x01020001, 0x00030001, 0x01030001, 0x00020101, 0x01020101, 0x00030101, 0x01030101,
42: 0x02020000, 0x03020000, 0x02030000, 0x03030000, 0x02020100, 0x03020100, 0x02030100, 0x03030100,
43: 0x02020001, 0x03020001, 0x02030001, 0x03030001, 0x02020101, 0x03020101, 0x02030101, 0x03030101,
44: 0x00000200, 0x01000200, 0x00010200, 0x01010200, 0x00000300, 0x01000300, 0x00010300, 0x01010300,
45: 0x00000201, 0x01000201, 0x00010201, 0x01010201, 0x00000301, 0x01000301, 0x00010301, 0x01010301,
46: 0x02000200, 0x03000200, 0x02010200, 0x03010200, 0x02000300, 0x03000300, 0x02010300, 0x03010300,
47: 0x02000201, 0x03000201, 0x02010201, 0x03010201, 0x02000301, 0x03000301, 0x02010301, 0x03010301,
48: 0x00020200, 0x01020200, 0x00030200, 0x01030200, 0x00020300, 0x01020300, 0x00030300, 0x01030300,
49: 0x00020201, 0x01020201, 0x00030201, 0x01030201, 0x00020301, 0x01020301, 0x00030301, 0x01030301,
50: 0x02020200, 0x03020200, 0x02030200, 0x03030200, 0x02020300, 0x03020300, 0x02030300, 0x03030300,
51: 0x02020201, 0x03020201, 0x02030201, 0x03030201, 0x02020301, 0x03020301, 0x02030301, 0x03030301,
52: 0x00000002, 0x01000002, 0x00010002, 0x01010002, 0x00000102, 0x01000102, 0x00010102, 0x01010102,
53: 0x00000003, 0x01000003, 0x00010003, 0x01010003, 0x00000103, 0x01000103, 0x00010103, 0x01010103,
54: 0x02000002, 0x03000002, 0x02010002, 0x03010002, 0x02000102, 0x03000102, 0x02010102, 0x03010102,
55: 0x02000003, 0x03000003, 0x02010003, 0x03010003, 0x02000103, 0x03000103, 0x02010103, 0x03010103,
56: 0x00020002, 0x01020002, 0x00030002, 0x01030002, 0x00020102, 0x01020102, 0x00030102, 0x01030102,
57: 0x00020003, 0x01020003, 0x00030003, 0x01030003, 0x00020103, 0x01020103, 0x00030103, 0x01030103,
58: 0x02020002, 0x03020002, 0x02030002, 0x03030002, 0x02020102, 0x03020102, 0x02030102, 0x03030102,
59: 0x02020003, 0x03020003, 0x02030003, 0x03030003, 0x02020103, 0x03020103, 0x02030103, 0x03030103,
60: 0x00000202, 0x01000202, 0x00010202, 0x01010202, 0x00000302, 0x01000302, 0x00010302, 0x01010302,
61: 0x00000203, 0x01000203, 0x00010203, 0x01010203, 0x00000303, 0x01000303, 0x00010303, 0x01010303,
62: 0x02000202, 0x03000202, 0x02010202, 0x03010202, 0x02000302, 0x03000302, 0x02010302, 0x03010302,
63: 0x02000203, 0x03000203, 0x02010203, 0x03010203, 0x02000303, 0x03000303, 0x02010303, 0x03010303,
64: 0x00020202, 0x01020202, 0x00030202, 0x01030202, 0x00020302, 0x01020302, 0x00030302, 0x01030302,
65: 0x00020203, 0x01020203, 0x00030203, 0x01030203, 0x00020303, 0x01020303, 0x00030303, 0x01030303,
66: 0x02020202, 0x03020202, 0x02030202, 0x03030202, 0x02020302, 0x03020302, 0x02030302, 0x03030302,
67: 0x02020203, 0x03020203, 0x02030203, 0x03030203, 0x02020303, 0x03020303, 0x02030303, 0x03030303,
68: };
1.1.1.3 root 69:
70: Uint32 Remap_2_Planes_Upper[256] = {
1.1 root 71: 0x00000000, 0x04000000, 0x00040000, 0x04040000, 0x00000400, 0x04000400, 0x00040400, 0x04040400,
72: 0x00000004, 0x04000004, 0x00040004, 0x04040004, 0x00000404, 0x04000404, 0x00040404, 0x04040404,
73: 0x08000000, 0x0C000000, 0x08040000, 0x0C040000, 0x08000400, 0x0C000400, 0x08040400, 0x0C040400,
74: 0x08000004, 0x0C000004, 0x08040004, 0x0C040004, 0x08000404, 0x0C000404, 0x08040404, 0x0C040404,
75: 0x00080000, 0x04080000, 0x000C0000, 0x040C0000, 0x00080400, 0x04080400, 0x000C0400, 0x040C0400,
76: 0x00080004, 0x04080004, 0x000C0004, 0x040C0004, 0x00080404, 0x04080404, 0x000C0404, 0x040C0404,
77: 0x08080000, 0x0C080000, 0x080C0000, 0x0C0C0000, 0x08080400, 0x0C080400, 0x080C0400, 0x0C0C0400,
78: 0x08080004, 0x0C080004, 0x080C0004, 0x0C0C0004, 0x08080404, 0x0C080404, 0x080C0404, 0x0C0C0404,
79: 0x00000800, 0x04000800, 0x00040800, 0x04040800, 0x00000C00, 0x04000C00, 0x00040C00, 0x04040C00,
80: 0x00000804, 0x04000804, 0x00040804, 0x04040804, 0x00000C04, 0x04000C04, 0x00040C04, 0x04040C04,
81: 0x08000800, 0x0C000800, 0x08040800, 0x0C040800, 0x08000C00, 0x0C000C00, 0x08040C00, 0x0C040C00,
82: 0x08000804, 0x0C000804, 0x08040804, 0x0C040804, 0x08000C04, 0x0C000C04, 0x08040C04, 0x0C040C04,
83: 0x00080800, 0x04080800, 0x000C0800, 0x040C0800, 0x00080C00, 0x04080C00, 0x000C0C00, 0x040C0C00,
84: 0x00080804, 0x04080804, 0x000C0804, 0x040C0804, 0x00080C04, 0x04080C04, 0x000C0C04, 0x040C0C04,
85: 0x08080800, 0x0C080800, 0x080C0800, 0x0C0C0800, 0x08080C00, 0x0C080C00, 0x080C0C00, 0x0C0C0C00,
86: 0x08080804, 0x0C080804, 0x080C0804, 0x0C0C0804, 0x08080C04, 0x0C080C04, 0x080C0C04, 0x0C0C0C04,
87: 0x00000008, 0x04000008, 0x00040008, 0x04040008, 0x00000408, 0x04000408, 0x00040408, 0x04040408,
88: 0x0000000C, 0x0400000C, 0x0004000C, 0x0404000C, 0x0000040C, 0x0400040C, 0x0004040C, 0x0404040C,
89: 0x08000008, 0x0C000008, 0x08040008, 0x0C040008, 0x08000408, 0x0C000408, 0x08040408, 0x0C040408,
90: 0x0800000C, 0x0C00000C, 0x0804000C, 0x0C04000C, 0x0800040C, 0x0C00040C, 0x0804040C, 0x0C04040C,
91: 0x00080008, 0x04080008, 0x000C0008, 0x040C0008, 0x00080408, 0x04080408, 0x000C0408, 0x040C0408,
92: 0x0008000C, 0x0408000C, 0x000C000C, 0x040C000C, 0x0008040C, 0x0408040C, 0x000C040C, 0x040C040C,
93: 0x08080008, 0x0C080008, 0x080C0008, 0x0C0C0008, 0x08080408, 0x0C080408, 0x080C0408, 0x0C0C0408,
94: 0x0808000C, 0x0C08000C, 0x080C000C, 0x0C0C000C, 0x0808040C, 0x0C08040C, 0x080C040C, 0x0C0C040C,
95: 0x00000808, 0x04000808, 0x00040808, 0x04040808, 0x00000C08, 0x04000C08, 0x00040C08, 0x04040C08,
96: 0x0000080C, 0x0400080C, 0x0004080C, 0x0404080C, 0x00000C0C, 0x04000C0C, 0x00040C0C, 0x04040C0C,
97: 0x08000808, 0x0C000808, 0x08040808, 0x0C040808, 0x08000C08, 0x0C000C08, 0x08040C08, 0x0C040C08,
98: 0x0800080C, 0x0C00080C, 0x0804080C, 0x0C04080C, 0x08000C0C, 0x0C000C0C, 0x08040C0C, 0x0C040C0C,
99: 0x00080808, 0x04080808, 0x000C0808, 0x040C0808, 0x00080C08, 0x04080C08, 0x000C0C08, 0x040C0C08,
100: 0x0008080C, 0x0408080C, 0x000C080C, 0x040C080C, 0x00080C0C, 0x04080C0C, 0x000C0C0C, 0x040C0C0C,
101: 0x08080808, 0x0C080808, 0x080C0808, 0x0C0C0808, 0x08080C08, 0x0C080C08, 0x080C0C08, 0x0C0C0C08,
102: 0x0808080C, 0x0C08080C, 0x080C080C, 0x0C0C080C, 0x08080C0C, 0x0C080C0C, 0x080C0C0C, 0x0C0C0C0C,
103: };
1.1.1.3 root 104:
105: Uint32 Remap_1_Plane[16] = {
1.1 root 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: /*-----------------------------------------------------------------------*/
1.1 root 111: /*
112: Update the STRGBPalette[] array with current colours for this raster line.
113:
1.1.1.2 root 114: Return 'ScrUpdateFlag', 0x80000000=Full update, 0x40000000=Update as palette changed
1.1 root 115: */
116: int AdjustLinePaletteRemap(void)
117: {
1.1.1.5 ! root 118: #if SDL_BYTEORDER == SDL_BIG_ENDIAN
! 119: static const int endiantable[16] = {0,2,1,3,8,10,9,11,4,6,5,7,12,14,13,15};
! 120: #endif
1.1.1.2 root 121: unsigned short *actHBLPal;
122: int i;
123: int v;
1.1.1.5 ! root 124:
1.1.1.2 root 125: /* Copy palette and convert to RGB in display format */
126: actHBLPal = pHBLPalettes + (ScrY<<4); /* offset in palette */
127: for(i=0; i<16; i++)
128: {
129: v=*actHBLPal;
130: actHBLPal+=1;
131: v=v&0x777;
1.1.1.3 root 132: #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1.1.1.2 root 133: STRGBPalette[endiantable[i]] = ST2RGB[v];
134: #else
135: STRGBPalette[i] = ST2RGB[v];
136: #endif
137: }
1.1.1.3 root 138: ScrUpdateFlag = HBLPaletteMasks[ScrY];
1.1.1.2 root 139: return ScrUpdateFlag;
1.1 root 140: }
141:
1.1.1.2 root 142:
143: /*-----------------------------------------------------------------------*/
1.1 root 144: /*
145: Run updates to palette(STRGBPalette[]) until get to screen line we are to convert from
146: */
147: void Convert_StartFrame(void)
148: {
149: int ecx;
150: ecx=STScreenStartHorizLine; /* Get #lines before conversion starts */
151: if( ecx==0 ) return;
152: ScrY=0;
153: do
154: {
155: AdjustLinePaletteRemap(); /* Update palette */
156: ++ScrY;
157: --ecx;
158: }
159: while( ecx );
160: }
161:
162:
163:
164:
165:
166: #define LOW_BUILD_PIXELS_0 \
167: { \
168: ebx &= 0x0f0f0f0f; \
169: ecx &= 0x0f0f0f0f; \
170: eax = ebx >> 12; \
171: eax |= ebx; \
172: edx = ecx >> 12; \
173: edx |= ecx; \
174: ebx = edx; \
175: ebx &= 0x00ff; \
176: ecx = Remap_2_Planes_Upper[ebx]; \
177: ebx = eax; \
178: ebx &= 0x00ff; \
179: ecx += Remap_2_Planes[ebx]; \
180: }
181:
182: #define LOW_BUILD_PIXELS_1 \
183: { \
184: ebx = edx; \
185: ebx = ebx >> 8; \
186: ebx &= 0x00ff; \
187: ecx = Remap_2_Planes_Upper[ebx]; \
188: ebx = eax; \
189: ebx = ebx >> 8; \
190: ebx &= 0x00ff; \
191: ecx += Remap_2_Planes[ebx]; \
192: }
193:
194: #define LOW_BUILD_PIXELS_2 \
195: { \
196: ebx = *edi; \
197: ecx = *(edi+1); \
198: ebx &= 0xf0f0f0f0; \
199: ecx &= 0xf0f0f0f0; \
200: ebx = ebx >> 4; \
201: eax = ebx; \
202: ebx = ebx >> 12; \
203: eax |= ebx; \
204: ecx = ecx >> 4; \
205: edx = ecx; \
206: ecx = ecx >> 12; \
207: edx |= ecx; \
208: ebx = edx; \
209: ebx &= 0x00ff; \
210: ecx = Remap_2_Planes_Upper[ebx]; \
211: ebx = eax; \
212: ebx &= 0x00ff; \
213: ecx += Remap_2_Planes[ebx]; \
214: }
215:
216: #define LOW_BUILD_PIXELS_3 \
217: { \
218: ebx = edx; \
219: ebx = ebx >> 8; \
220: ebx &= 0x00ff; \
221: ecx = Remap_2_Planes_Upper[ebx]; \
222: ebx = eax; \
223: ebx = ebx >> 8; \
224: ebx &= 0x00ff; \
225: ecx += Remap_2_Planes[ebx]; \
226: }
227:
1.1.1.2 root 228:
229: #define MED_BUILD_PIXELS_0 \
230: { \
231: ebx &= 0x0f0f0f0f; \
232: eax = ebx; \
233: eax >>= 12; \
234: eax |= ebx; \
235: ebx = eax; \
236: ebx &= 0x000000ff; \
237: ecx = Remap_2_Planes[ebx]; \
238: }
239:
240: #define MED_BUILD_PIXELS_1 \
241: { \
242: ebx = eax; \
243: ebx >>=8; \
244: ebx &= 0x000000ff; \
245: ecx = Remap_2_Planes[ebx]; \
246: }
247:
248: #define MED_BUILD_PIXELS_2 \
249: { \
250: ebx = *edi; \
251: ebx &= 0xf0f0f0f0; \
252: ebx >>= 4; \
253: eax = ebx; \
254: ebx >>= 12; \
255: eax |= ebx; \
256: ebx = eax; \
257: ebx &= 0x000000ff; \
258: ecx = Remap_2_Planes[ebx]; \
259: }
260:
261: #define MED_BUILD_PIXELS_3 \
262: { \
263: ebx = eax; \
264: ebx >>= 8; \
265: ebx &= 0x000000ff; \
266: ecx = Remap_2_Planes[ebx]; \
267: }
268:
1.1.1.3 root 269:
270: /* Routines to create 'ecx' pixels - MUST be called in this order */
271: #define HIGH_BUILD_PIXELS_0 \
272: { \
273: eax = ebx; \
274: eax &= 0x0000000f; \
275: }
276:
277: #define HIGH_BUILD_PIXELS_1 \
278: { \
279: eax = ebx; \
280: eax >>= 4; \
281: eax &= 0x0000000f;\
282: }
283:
284: #define HIGH_BUILD_PIXELS_2 \
285: { \
286: eax = ebx; \
287: eax >>= 8; \
288: eax &= 0x0000000f;\
289: }
290:
291: #define HIGH_BUILD_PIXELS_3 \
292: { \
293: eax = ebx; \
294: eax >>= 12; \
295: eax &= 0x0000000f;\
296: }
297:
298:
299: /* Plot Low Resolution (320xH) 16-Bit pixels */
300: #define PLOT_LOW_320_16BIT(offset) \
301: { \
302: ebx = ecx; \
303: ebx &= 0x00ff; \
304: ecx = ecx >> 8; \
305: ebx = STRGBPalette[ebx]; \
306: esi[offset] = (unsigned short) ebx; \
307: ebx = ecx; \
308: ebx &= 0x00ff; \
309: ecx = ecx >> 8; \
310: ebx = STRGBPalette[ebx]; \
311: esi[offset+1] = (unsigned short) ebx; \
312: ebx = ecx; \
313: ebx &= 0x00ff; \
314: ecx = ecx >> 8; \
315: ebx = STRGBPalette[ebx]; \
316: esi[offset+2] = (unsigned short) ebx; \
317: ebx = ecx; \
318: ebx &= 0x00ff; \
319: ebx = STRGBPalette[ebx]; \
320: esi[offset+3] = (unsigned short) ebx; \
321: }
322:
1.1.1.5 ! root 323: /* Plot Low Resolution (320xH) 8-Bit pixels */
! 324: #define PLOT_LOW_320_8BIT(offset) \
! 325: { \
! 326: ecx += BASECOLOUR_LONG; \
! 327: esi[offset] = SDL_SwapLE32(ecx); \
! 328: }
! 329:
1.1.1.3 root 330: /* Plot Low Resolution (640xH) 16-Bit pixels */
331: #define PLOT_LOW_640_16BIT(offset) \
332: { \
333: ebx = ecx; \
334: ebx &= 0x000000ff; \
335: ecx >>= 8; \
336: ebx = STRGBPalette[ebx]; \
337: esi[offset] = ebx; \
338: ebx = ecx; \
339: ebx &= 0x000000ff; \
340: ecx >>= 8; \
341: ebx = STRGBPalette[ebx]; \
342: esi[offset+1] = ebx; \
343: ebx = ecx; \
344: ebx &= 0x000000ff; \
345: ecx >>= 8; \
346: ebx = STRGBPalette[ebx]; \
347: esi[offset+2] = ebx; \
348: ebx = ecx; \
349: ebx &= 0x000000ff; \
350: ebx = STRGBPalette[ebx]; \
351: esi[offset+3] = ebx; \
352: }
353:
354: /* Plot Low Resolution (640xH) 16-Bit pixels (Double on Y) */
355: #define PLOT_LOW_640_16BIT_DOUBLE_Y(offset) \
356: { \
357: ebx = ecx; \
358: ebx &= 0x000000ff; \
359: ecx >>= 8; \
360: ebx = STRGBPalette[ebx]; \
361: esi[offset] = ebx; \
362: esi[offset+PCScreenBytesPerLine/4] = ebx; \
363: ebx = ecx; \
364: ebx &= 0x000000ff; \
365: ecx >>= 8; \
366: ebx = STRGBPalette[ebx]; \
367: esi[offset+1] = ebx; \
368: esi[offset+1+PCScreenBytesPerLine/4] = ebx; \
369: ebx = ecx; \
370: ebx &= 0x000000ff; \
371: ecx >>= 8; \
372: ebx = STRGBPalette[ebx]; \
373: esi[offset+2] = ebx; \
374: esi[offset+2+PCScreenBytesPerLine/4] = ebx; \
375: ebx = ecx; \
376: ebx &= 0x000000ff; \
377: ebx = STRGBPalette[ebx]; \
378: esi[offset+3] = ebx; \
379: esi[offset+3+PCScreenBytesPerLine/4] = ebx; \
380: }
381:
382:
1.1.1.5 ! root 383: /* Plot Medium Resolution (640xH) 8-Bit pixels */
! 384: #define PLOT_MED_640_8BIT(offset) \
! 385: { \
! 386: ecx += BASECOLOUR_LONG; \
! 387: esi[offset] = SDL_SwapLE32(ecx); \
! 388: }
! 389:
1.1.1.2 root 390: /* Plot Medium Resolution(640xH) 16-Bit pixels */
391: #define PLOT_MED_640_16BIT(offset) \
392: { \
393: ebx = ecx; \
394: ebx &= 0x000000ff; \
395: ecx >>= 8; \
396: ebx = STRGBPalette[ebx]; \
397: esi[offset] = (Uint16)ebx; \
398: ebx = ecx; \
399: ebx &= 0x000000ff; \
400: ecx >>= 8; \
401: ebx = STRGBPalette[ebx]; \
402: esi[offset+1] = (Uint16)ebx; \
403: ebx = ecx; \
404: ebx &= 0x000000ff; \
405: ecx >>= 8; \
406: ebx = STRGBPalette[ebx]; \
407: esi[offset+2] = (Uint16)ebx; \
408: ebx = ecx; \
409: ebx &= 0x000000ff; \
410: ebx = STRGBPalette[ebx]; \
411: esi[offset+3] = (Uint16)ebx; \
412: }
413:
414: /* Plot Medium Resolution(640xH) 16-Bit pixels (Double on Y) */
415: #define PLOT_MED_640_16BIT_DOUBLE_Y(offset) \
416: { \
417: ebx = ecx; \
418: ebx &= 0x000000ff; \
419: ecx >>= 8; \
420: ebx = STRGBPalette[ebx]; \
421: esi[offset] = (Uint16)ebx; \
1.1.1.3 root 422: esi[offset+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 423: ebx = ecx; \
424: ebx &= 0x000000ff; \
425: ecx >>= 8; \
426: ebx = STRGBPalette[ebx]; \
427: esi[offset+1] = (Uint16)ebx; \
1.1.1.3 root 428: esi[offset+1+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 429: ebx = ecx; \
430: ebx &= 0x000000ff; \
431: ecx >>= 8; \
432: ebx = STRGBPalette[ebx]; \
433: esi[offset+2] = (Uint16)ebx; \
1.1.1.3 root 434: esi[offset+2+PCScreenBytesPerLine/2] = (Uint16)ebx; \
1.1.1.2 root 435: ebx = ecx; \
436: ebx &= 0x000000ff; \
437: ebx = STRGBPalette[ebx]; \
438: esi[offset+3] = (Uint16)ebx; \
1.1.1.3 root 439: esi[offset+3+PCScreenBytesPerLine/2] = (Uint16)ebx; \
440: }
441:
442:
443: /* Plot High Resolution (640xH) 8-Bit pixels */
444: #define PLOT_HIGH_640_8BIT(offset) \
445: { \
1.1.1.5 ! root 446: esi[offset] = SDL_SwapLE32(Remap_1_Plane[eax]); \
1.1.1.2 root 447: }
448:
449:
450: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
451: #define PLOT_SPEC512_LEFT_LOW_320_16BIT(offset) \
452: { \
453: ecx &= 0x000000ff; \
454: ebx = STRGBPalette[ecx]; \
455: esi[offset] = (Uint16)ebx; \
456: }
457:
458: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
459: #define PLOT_SPEC512_MID_320_16BIT(offset) \
460: { \
461: ebx = ecx; \
462: ebx &= 0x000000ff; \
463: ecx >>= 8; \
464: ebx = STRGBPalette[ebx]; \
465: esi[offset] = (Uint16)ebx; \
466: ebx = ecx; \
467: ebx &= 0x000000ff; \
468: ecx >>= 8; \
469: ebx = STRGBPalette[ebx]; \
470: esi[offset+1] = (Uint16)ebx; \
471: ebx = ecx; \
472: ebx &= 0x000000ff; \
473: ecx >>= 8; \
474: ebx = STRGBPalette[ebx]; \
475: esi[offset+2] = (Uint16)ebx; \
476: ebx = ecx; \
477: ebx &= 0x000000ff; \
478: ebx = STRGBPalette[ebx]; \
479: esi[offset+3] = (Uint16)ebx; \
480: }
481:
482: /* Plot Spectrum512 Resolution(320xH) 16-Bit pixels */
483: #define PLOT_SPEC512_END_LOW_320_16BIT(offset) \
484: { \
485: ebx = ecx; \
486: ebx &= 0x000000ff; \
487: ecx >>= 8; \
488: ebx = STRGBPalette[ebx]; \
489: esi[offset] = (Uint16)ebx; \
490: ebx = ecx; \
491: ebx &= 0x000000ff; \
492: ecx >>= 8; \
493: ebx = STRGBPalette[ebx]; \
494: esi[offset+1] = (Uint16)ebx; \
495: ebx = ecx; \
496: ebx &= 0x000000ff; \
497: ecx >>= 8; \
498: ebx = STRGBPalette[ebx]; \
499: esi[offset+2] = (Uint16)ebx; \
500: }
1.1 root 501:
502:
503:
504: /* Conversion routines */
505: #include "convert/low320x16.c" /* LowRes To 320xH x 16-bit colour */
506: #include "convert/low640x16.c" /* LowRes To 640xH x 16-bit colour */
507: #include "convert/med640x16.c" /* MediumRes To 640xH x 16-bit colour */
508: #include "convert/low320x8.c" /* LowRes To 320xH x 8-bit colour */
509: #include "convert/low640x8.c" /* LowRes To 640xH x 8-bit colour */
510: #include "convert/med640x8.c" /* MediumRes To 640xH x 8-bit colour */
511: #include "convert/high640x8.c" /* HighRes To 640xH x 8-bit colour */
512: #include "convert/high640x1.c" /* HighRes To 640xH x 1-bit colour */
513: #include "convert/spec320x16.c" /* Spectrum 512 To 320xH x 16-bit colour */
514: #include "convert/spec640x16.c" /* Spectrum 512 To 640xH x 16-bit colour */
515:
516: #include "convert/vdi16.c" /* VDI x 16 colour */
517: #include "convert/vdi4.c" /* VDI x 4 colour */
518: #include "convert/vdi2.c" /* VDI x 2 colour */
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