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7d0f2f23 | 1 | /** @file |
2 | ||
3 | Copyright (c) 2011, ARM Ltd. All rights reserved.<BR> | |
4 | This program and the accompanying materials | |
5 | are licensed and made available under the terms and conditions of the BSD License | |
6 | which accompanies this distribution. The full text of the license may be found at | |
7 | http://opensource.org/licenses/bsd-license.php | |
8 | ||
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
11 | ||
12 | **/ | |
13 | ||
14 | #include <PiDxe.h> | |
7d0f2f23 | 15 | #include <Library/BaseMemoryLib.h> |
16 | #include <Library/DevicePathLib.h> | |
17 | #include <Library/UefiBootServicesTableLib.h> | |
18 | #include <Library/UefiRuntimeServicesTableLib.h> | |
19 | #include <Library/MemoryAllocationLib.h> | |
20 | ||
21 | #include <Guid/GlobalVariable.h> | |
22 | ||
7d0f2f23 | 23 | #include "LcdGraphicsOutputDxe.h" |
24 | ||
25 | extern BOOLEAN mDisplayInitialized; | |
26 | ||
27 | // | |
28 | // Function Definitions | |
29 | // | |
30 | ||
31 | STATIC | |
32 | EFI_STATUS | |
33 | VideoCopyNoHorizontalOverlap ( | |
34 | IN UINTN BitsPerPixel, | |
35 | IN volatile VOID *FrameBufferBase, | |
36 | IN UINT32 HorizontalResolution, | |
37 | IN UINTN SourceX, | |
38 | IN UINTN SourceY, | |
39 | IN UINTN DestinationX, | |
40 | IN UINTN DestinationY, | |
41 | IN UINTN Width, | |
42 | IN UINTN Height | |
43 | ) | |
44 | { | |
45 | EFI_STATUS Status = EFI_SUCCESS; | |
46 | UINTN SourceLine; | |
47 | UINTN DestinationLine; | |
48 | UINTN WidthInBytes; | |
49 | UINTN LineCount; | |
50 | INTN Step; | |
51 | VOID *SourceAddr; | |
52 | VOID *DestinationAddr; | |
53 | ||
54 | if( DestinationY <= SourceY ) { | |
55 | // scrolling up (or horizontally but without overlap) | |
56 | SourceLine = SourceY; | |
57 | DestinationLine = DestinationY; | |
58 | Step = 1; | |
59 | } else { | |
60 | // scrolling down | |
61 | SourceLine = SourceY + Height; | |
62 | DestinationLine = DestinationY + Height; | |
63 | Step = -1; | |
64 | } | |
65 | ||
66 | switch (BitsPerPixel) { | |
67 | ||
68 | case LCD_BITS_PER_PIXEL_24: | |
69 | ||
70 | WidthInBytes = Width * 4; | |
71 | ||
72 | for( LineCount = 0; LineCount < Height; LineCount++ ) { | |
73 | // Update the start addresses of source & destination using 32bit pointer arithmetic | |
74 | SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX ); | |
75 | DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); | |
76 | ||
77 | // Copy the entire line Y from video ram to the temp buffer | |
78 | CopyMem( DestinationAddr, SourceAddr, WidthInBytes); | |
79 | ||
80 | // Update the line numbers | |
81 | SourceLine += Step; | |
82 | DestinationLine += Step; | |
83 | } | |
84 | break; | |
85 | ||
86 | case LCD_BITS_PER_PIXEL_16_555: | |
87 | case LCD_BITS_PER_PIXEL_16_565: | |
88 | case LCD_BITS_PER_PIXEL_12_444: | |
89 | ||
90 | WidthInBytes = Width * 2; | |
91 | ||
92 | for( LineCount = 0; LineCount < Height; LineCount++ ) { | |
93 | // Update the start addresses of source & destination using 16bit pointer arithmetic | |
94 | SourceAddr = (VOID *)((UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX ); | |
95 | DestinationAddr = (VOID *)((UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); | |
96 | ||
97 | // Copy the entire line Y from video ram to the temp buffer | |
98 | CopyMem( DestinationAddr, SourceAddr, WidthInBytes); | |
99 | ||
100 | // Update the line numbers | |
101 | SourceLine += Step; | |
102 | DestinationLine += Step; | |
103 | } | |
104 | break; | |
105 | ||
106 | case LCD_BITS_PER_PIXEL_8: | |
107 | case LCD_BITS_PER_PIXEL_4: | |
108 | case LCD_BITS_PER_PIXEL_2: | |
109 | case LCD_BITS_PER_PIXEL_1: | |
110 | default: | |
111 | // Can't handle this case | |
112 | DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel)); | |
113 | Status = EFI_INVALID_PARAMETER; | |
114 | goto EXIT; | |
115 | // break; | |
116 | ||
117 | } | |
118 | ||
119 | EXIT: | |
120 | return Status; | |
121 | } | |
122 | ||
123 | STATIC | |
124 | EFI_STATUS | |
125 | VideoCopyHorizontalOverlap ( | |
126 | IN UINTN BitsPerPixel, | |
127 | IN volatile VOID *FrameBufferBase, | |
128 | UINT32 HorizontalResolution, | |
129 | IN UINTN SourceX, | |
130 | IN UINTN SourceY, | |
131 | IN UINTN DestinationX, | |
132 | IN UINTN DestinationY, | |
133 | IN UINTN Width, | |
134 | IN UINTN Height | |
135 | ) | |
136 | { | |
137 | EFI_STATUS Status = EFI_SUCCESS; | |
138 | ||
139 | UINT32 *PixelBuffer32bit; | |
140 | UINT32 *SourcePixel32bit; | |
141 | UINT32 *DestinationPixel32bit; | |
142 | ||
143 | UINT16 *PixelBuffer16bit; | |
144 | UINT16 *SourcePixel16bit; | |
145 | UINT16 *DestinationPixel16bit; | |
146 | ||
147 | UINT32 SourcePixelY; | |
148 | UINT32 DestinationPixelY; | |
149 | UINTN SizeIn32Bits; | |
150 | UINTN SizeIn16Bits; | |
151 | ||
152 | switch (BitsPerPixel) { | |
153 | ||
154 | case LCD_BITS_PER_PIXEL_24: | |
155 | // Allocate a temporary buffer | |
156 | ||
157 | PixelBuffer32bit = (UINT32 *) AllocatePool((Height * Width) * sizeof(UINT32)); | |
158 | ||
159 | if (PixelBuffer32bit == NULL) { | |
160 | Status = EFI_OUT_OF_RESOURCES; | |
161 | goto EXIT; | |
162 | } | |
163 | ||
164 | SizeIn32Bits = Width * 4; | |
165 | ||
166 | // Copy from the video ram (source region) to a temp buffer | |
167 | for (SourcePixelY = SourceY, DestinationPixel32bit = PixelBuffer32bit; | |
168 | SourcePixelY < SourceY + Height; | |
169 | SourcePixelY++, DestinationPixel32bit += Width) | |
170 | { | |
171 | // Update the start address of line Y (source) | |
172 | SourcePixel32bit = (UINT32 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX; | |
173 | ||
174 | // Copy the entire line Y from video ram to the temp buffer | |
175 | CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits); | |
176 | } | |
177 | ||
178 | // Copy from the temp buffer to the video ram (destination region) | |
179 | for (DestinationPixelY = DestinationY, SourcePixel32bit = PixelBuffer32bit; | |
180 | DestinationPixelY < DestinationY + Height; | |
181 | DestinationPixelY++, SourcePixel32bit += Width) | |
182 | { | |
183 | // Update the start address of line Y (target) | |
184 | DestinationPixel32bit = (UINT32 *)FrameBufferBase + DestinationPixelY * HorizontalResolution + DestinationX; | |
185 | ||
186 | // Copy the entire line Y from the temp buffer to video ram | |
187 | CopyMem( (VOID *)DestinationPixel32bit, (CONST VOID *)SourcePixel32bit, SizeIn32Bits); | |
188 | } | |
189 | ||
190 | // Free up the allocated memory | |
191 | FreePool((VOID *) PixelBuffer32bit); | |
192 | ||
193 | break; | |
194 | ||
195 | ||
196 | case LCD_BITS_PER_PIXEL_16_555: | |
197 | case LCD_BITS_PER_PIXEL_16_565: | |
198 | case LCD_BITS_PER_PIXEL_12_444: | |
199 | // Allocate a temporary buffer | |
200 | PixelBuffer16bit = (UINT16 *) AllocatePool((Height * Width) * sizeof(UINT16)); | |
201 | ||
202 | if (PixelBuffer16bit == NULL) { | |
203 | Status = EFI_OUT_OF_RESOURCES; | |
204 | goto EXIT; | |
205 | } | |
206 | ||
207 | // Access each pixel inside the source area of the Video Memory and copy it to the temp buffer | |
208 | ||
209 | SizeIn16Bits = Width * 2; | |
210 | ||
211 | for (SourcePixelY = SourceY, DestinationPixel16bit = PixelBuffer16bit; | |
212 | SourcePixelY < SourceY + Height; | |
213 | SourcePixelY++, DestinationPixel16bit += Width) | |
214 | { | |
215 | // Calculate the source address: | |
216 | SourcePixel16bit = (UINT16 *)FrameBufferBase + SourcePixelY * HorizontalResolution + SourceX; | |
217 | ||
218 | // Copy the entire line Y from Video to the temp buffer | |
219 | CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); | |
220 | } | |
221 | ||
222 | // Copy from the temp buffer into the destination area of the Video Memory | |
223 | ||
224 | for (DestinationPixelY = DestinationY, SourcePixel16bit = PixelBuffer16bit; | |
225 | DestinationPixelY < DestinationY + Height; | |
226 | DestinationPixelY++, SourcePixel16bit += Width) | |
227 | { | |
228 | // Calculate the target address: | |
229 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + (DestinationPixelY * HorizontalResolution + DestinationX); | |
230 | ||
231 | // Copy the entire line Y from the temp buffer to Video | |
232 | CopyMem( (VOID *)DestinationPixel16bit, (CONST VOID *)SourcePixel16bit, SizeIn16Bits); | |
233 | } | |
234 | ||
235 | // Free the allocated memory | |
236 | FreePool((VOID *) PixelBuffer16bit); | |
237 | ||
238 | break; | |
239 | ||
240 | ||
241 | case LCD_BITS_PER_PIXEL_8: | |
242 | case LCD_BITS_PER_PIXEL_4: | |
243 | case LCD_BITS_PER_PIXEL_2: | |
244 | case LCD_BITS_PER_PIXEL_1: | |
245 | default: | |
246 | // Can't handle this case | |
247 | DEBUG((DEBUG_ERROR, "ArmVeGraphics_Blt: EfiBltVideoToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel)); | |
248 | Status = EFI_INVALID_PARAMETER; | |
249 | goto EXIT; | |
250 | // break; | |
251 | ||
252 | } | |
253 | ||
254 | EXIT: | |
255 | return Status; | |
256 | } | |
257 | ||
258 | STATIC | |
259 | EFI_STATUS | |
260 | BltVideoFill ( | |
261 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, | |
262 | IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel, OPTIONAL | |
263 | IN UINTN SourceX, | |
264 | IN UINTN SourceY, | |
265 | IN UINTN DestinationX, | |
266 | IN UINTN DestinationY, | |
267 | IN UINTN Width, | |
268 | IN UINTN Height, | |
269 | IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer | |
270 | ) | |
271 | { | |
272 | EFI_PIXEL_BITMASK* PixelInformation; | |
273 | EFI_STATUS Status; | |
274 | UINT32 HorizontalResolution; | |
275 | LCD_BPP BitsPerPixel; | |
276 | VOID *FrameBufferBase; | |
277 | VOID *DestinationAddr; | |
278 | UINT16 *DestinationPixel16bit; | |
279 | UINT16 Pixel16bit; | |
280 | UINT32 DestinationPixelX; | |
281 | UINT32 DestinationLine; | |
282 | UINTN WidthInBytes; | |
283 | ||
284 | Status = EFI_SUCCESS; | |
285 | PixelInformation = &This->Mode->Info->PixelInformation; | |
286 | FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); | |
287 | HorizontalResolution = This->Mode->Info->HorizontalResolution; | |
288 | ||
289 | LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel); | |
290 | ||
291 | switch (BitsPerPixel) { | |
292 | case LCD_BITS_PER_PIXEL_24: | |
293 | WidthInBytes = Width * 4; | |
294 | ||
295 | // Copy the SourcePixel into every pixel inside the target rectangle | |
296 | for (DestinationLine = DestinationY; | |
297 | DestinationLine < DestinationY + Height; | |
298 | DestinationLine++) | |
299 | { | |
300 | // Calculate the target address using 32bit pointer arithmetic: | |
301 | DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); | |
302 | ||
303 | // Fill the entire line | |
304 | SetMemN( DestinationAddr, WidthInBytes, *((UINTN *)EfiSourcePixel)); | |
305 | } | |
306 | break; | |
307 | ||
308 | case LCD_BITS_PER_PIXEL_16_555: | |
309 | // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel | |
310 | Pixel16bit = (UINT16) ( | |
311 | ( (EfiSourcePixel->Red << 7) & PixelInformation->RedMask ) | |
312 | | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask ) | |
313 | | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) | |
314 | // | ( 0 & PixelInformation->ReservedMask ) | |
315 | ); | |
316 | ||
317 | // Copy the SourcePixel into every pixel inside the target rectangle | |
318 | for (DestinationLine = DestinationY; | |
319 | DestinationLine < DestinationY + Height; | |
320 | DestinationLine++) | |
321 | { | |
322 | for (DestinationPixelX = DestinationX; | |
323 | DestinationPixelX < DestinationX + Width; | |
324 | DestinationPixelX++) | |
325 | { | |
326 | // Calculate the target address: | |
327 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
328 | ||
329 | // Copy the pixel into the new target | |
330 | *DestinationPixel16bit = Pixel16bit; | |
331 | } | |
332 | } | |
333 | break; | |
334 | ||
335 | case LCD_BITS_PER_PIXEL_16_565: | |
336 | // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel | |
337 | Pixel16bit = (UINT16) ( | |
338 | ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) | |
339 | | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) | |
340 | | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) | |
341 | ); | |
342 | ||
343 | // Copy the SourcePixel into every pixel inside the target rectangle | |
344 | for (DestinationLine = DestinationY; | |
345 | DestinationLine < DestinationY + Height; | |
346 | DestinationLine++) | |
347 | { | |
348 | for (DestinationPixelX = DestinationX; | |
349 | DestinationPixelX < DestinationX + Width; | |
350 | DestinationPixelX++) | |
351 | { | |
352 | // Calculate the target address: | |
353 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
354 | ||
355 | // Copy the pixel into the new target | |
356 | *DestinationPixel16bit = Pixel16bit; | |
357 | } | |
358 | } | |
359 | break; | |
360 | ||
361 | case LCD_BITS_PER_PIXEL_12_444: | |
362 | // Convert the EFI pixel at the start of the BltBuffer(0,0) into a video display pixel | |
363 | Pixel16bit = (UINT16) ( | |
364 | ( (EfiSourcePixel->Red >> 4) & PixelInformation->RedMask ) | |
365 | | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask ) | |
366 | | ( (EfiSourcePixel->Blue << 4) & PixelInformation->BlueMask ) | |
367 | ); | |
368 | ||
369 | // Copy the SourcePixel into every pixel inside the target rectangle | |
370 | for (DestinationLine = DestinationY; | |
371 | DestinationLine < DestinationY + Height; | |
372 | DestinationLine++) | |
373 | { | |
374 | for (DestinationPixelX = DestinationX; | |
375 | DestinationPixelX < DestinationX + Width; | |
376 | DestinationPixelX++) | |
377 | { | |
378 | // Calculate the target address: | |
379 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
380 | ||
381 | // Copy the pixel into the new target | |
382 | *DestinationPixel16bit = Pixel16bit; | |
383 | } | |
384 | } | |
385 | break; | |
386 | ||
387 | case LCD_BITS_PER_PIXEL_8: | |
388 | case LCD_BITS_PER_PIXEL_4: | |
389 | case LCD_BITS_PER_PIXEL_2: | |
390 | case LCD_BITS_PER_PIXEL_1: | |
391 | default: | |
392 | // Can't handle this case | |
393 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoFill: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel)); | |
394 | Status = EFI_INVALID_PARAMETER; | |
395 | break; | |
396 | } | |
397 | ||
398 | return Status; | |
399 | } | |
400 | ||
401 | STATIC | |
402 | EFI_STATUS | |
403 | BltVideoToBltBuffer ( | |
404 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, | |
405 | IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL | |
406 | IN UINTN SourceX, | |
407 | IN UINTN SourceY, | |
408 | IN UINTN DestinationX, | |
409 | IN UINTN DestinationY, | |
410 | IN UINTN Width, | |
411 | IN UINTN Height, | |
412 | IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer | |
413 | ) | |
414 | { | |
415 | EFI_STATUS Status; | |
416 | UINT32 HorizontalResolution; | |
417 | LCD_BPP BitsPerPixel; | |
418 | EFI_PIXEL_BITMASK *PixelInformation; | |
419 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiDestinationPixel; | |
420 | VOID *FrameBufferBase; | |
421 | VOID *SourceAddr; | |
422 | VOID *DestinationAddr; | |
423 | UINT16 *SourcePixel16bit; | |
424 | UINT16 Pixel16bit; | |
425 | UINT32 SourcePixelX; | |
426 | UINT32 SourceLine; | |
427 | UINT32 DestinationPixelX; | |
428 | UINT32 DestinationLine; | |
429 | UINT32 BltBufferHorizontalResolution; | |
430 | UINTN WidthInBytes; | |
431 | ||
432 | Status = EFI_SUCCESS; | |
433 | PixelInformation = &This->Mode->Info->PixelInformation; | |
434 | HorizontalResolution = This->Mode->Info->HorizontalResolution; | |
435 | FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); | |
436 | ||
437 | if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { | |
438 | // Delta is not zero and it is different from the width. | |
439 | // Divide it by the size of a pixel to find out the buffer's horizontal resolution. | |
440 | BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); | |
441 | } else { | |
442 | BltBufferHorizontalResolution = Width; | |
443 | } | |
444 | ||
445 | LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel); | |
446 | ||
447 | switch (BitsPerPixel) { | |
448 | case LCD_BITS_PER_PIXEL_24: | |
449 | WidthInBytes = Width * 4; | |
450 | ||
451 | // Access each line inside the Video Memory | |
452 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
453 | SourceLine < SourceY + Height; | |
454 | SourceLine++, DestinationLine++) | |
455 | { | |
456 | // Calculate the source and target addresses using 32bit pointer arithmetic: | |
457 | SourceAddr = (VOID *)((UINT32 *)FrameBufferBase + SourceLine * HorizontalResolution + SourceX ); | |
458 | DestinationAddr = (VOID *)((UINT32 *)BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationX); | |
459 | ||
460 | // Copy the entire line | |
461 | CopyMem( DestinationAddr, SourceAddr, WidthInBytes); | |
462 | } | |
463 | break; | |
464 | ||
465 | case LCD_BITS_PER_PIXEL_16_555: | |
466 | // Access each pixel inside the Video Memory | |
467 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
468 | SourceLine < SourceY + Height; | |
469 | SourceLine++, DestinationLine++) | |
470 | { | |
471 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
472 | SourcePixelX < SourceX + Width; | |
473 | SourcePixelX++, DestinationPixelX++) | |
474 | { | |
475 | // Calculate the source and target addresses: | |
476 | SourcePixel16bit = (UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourcePixelX; | |
477 | EfiDestinationPixel = BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationPixelX; | |
478 | ||
479 | // Snapshot the pixel from the video buffer once, to speed up the operation. | |
480 | // If we were dereferencing the pointer, as it is volatile, we would perform 3 memory read operations. | |
481 | Pixel16bit = *SourcePixel16bit; | |
482 | ||
483 | // Copy the pixel into the new target | |
484 | EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 7 ); | |
485 | EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 2); | |
486 | EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 ); | |
487 | // EfiDestinationPixel->Reserved = (UINT8) 0; | |
488 | } | |
489 | } | |
490 | break; | |
491 | ||
492 | case LCD_BITS_PER_PIXEL_16_565: | |
493 | // Access each pixel inside the Video Memory | |
494 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
495 | SourceLine < SourceY + Height; | |
496 | SourceLine++, DestinationLine++) | |
497 | { | |
498 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
499 | SourcePixelX < SourceX + Width; | |
500 | SourcePixelX++, DestinationPixelX++) | |
501 | { | |
502 | // Calculate the source and target addresses: | |
503 | SourcePixel16bit = (UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourcePixelX; | |
504 | EfiDestinationPixel = BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationPixelX; | |
505 | ||
506 | // Snapshot the pixel from the video buffer once, to speed up the operation. | |
507 | // If we were dereferencing the pointer, as it is volatile, we would perform 3 memory read operations. | |
508 | Pixel16bit = *SourcePixel16bit; | |
509 | ||
510 | // Copy the pixel into the new target | |
511 | // There is no info for the Reserved byte, so we set it to zero | |
512 | EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 8 ); | |
513 | EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) >> 3); | |
514 | EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 3 ); | |
515 | // EfiDestinationPixel->Reserved = (UINT8) 0; | |
516 | } | |
517 | } | |
518 | break; | |
519 | ||
520 | case LCD_BITS_PER_PIXEL_12_444: | |
521 | // Access each pixel inside the Video Memory | |
522 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
523 | SourceLine < SourceY + Height; | |
524 | SourceLine++, DestinationLine++) | |
525 | { | |
526 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
527 | SourcePixelX < SourceX + Width; | |
528 | SourcePixelX++, DestinationPixelX++) | |
529 | { | |
530 | // Calculate the source and target addresses: | |
531 | SourcePixel16bit = (UINT16 *)FrameBufferBase + SourceLine * HorizontalResolution + SourcePixelX; | |
532 | EfiDestinationPixel = BltBuffer + DestinationLine * BltBufferHorizontalResolution + DestinationPixelX; | |
533 | ||
534 | // Snapshot the pixel from the video buffer once, to speed up the operation. | |
535 | // If we were dereferencing the pointer, as it is volatile, we would perform 3 memory read operations. | |
536 | Pixel16bit = *SourcePixel16bit; | |
537 | ||
538 | // Copy the pixel into the new target | |
539 | EfiDestinationPixel->Red = (UINT8) ( (Pixel16bit & PixelInformation->RedMask ) >> 4 ); | |
540 | EfiDestinationPixel->Green = (UINT8) ( (Pixel16bit & PixelInformation->GreenMask ) ); | |
541 | EfiDestinationPixel->Blue = (UINT8) ( (Pixel16bit & PixelInformation->BlueMask ) << 4 ); | |
542 | // EfiDestinationPixel->Reserved = (UINT8) 0; | |
543 | } | |
544 | } | |
545 | break; | |
546 | ||
547 | case LCD_BITS_PER_PIXEL_8: | |
548 | case LCD_BITS_PER_PIXEL_4: | |
549 | case LCD_BITS_PER_PIXEL_2: | |
550 | case LCD_BITS_PER_PIXEL_1: | |
551 | default: | |
552 | // Can't handle this case | |
553 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltVideoToBltBuffer: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel)); | |
554 | Status = EFI_INVALID_PARAMETER; | |
555 | break; | |
556 | } | |
557 | return Status; | |
558 | } | |
559 | ||
560 | STATIC | |
561 | EFI_STATUS | |
562 | BltBufferToVideo ( | |
563 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, | |
564 | IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL | |
565 | IN UINTN SourceX, | |
566 | IN UINTN SourceY, | |
567 | IN UINTN DestinationX, | |
568 | IN UINTN DestinationY, | |
569 | IN UINTN Width, | |
570 | IN UINTN Height, | |
571 | IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer | |
572 | ) | |
573 | { | |
574 | EFI_STATUS Status; | |
575 | UINT32 HorizontalResolution; | |
576 | LCD_BPP BitsPerPixel; | |
577 | EFI_PIXEL_BITMASK *PixelInformation; | |
578 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *EfiSourcePixel; | |
579 | VOID *FrameBufferBase; | |
580 | VOID *SourceAddr; | |
581 | VOID *DestinationAddr; | |
582 | UINT16 *DestinationPixel16bit; | |
583 | UINT32 SourcePixelX; | |
584 | UINT32 SourceLine; | |
585 | UINT32 DestinationPixelX; | |
586 | UINT32 DestinationLine; | |
587 | UINT32 BltBufferHorizontalResolution; | |
588 | UINTN WidthInBytes; | |
589 | ||
590 | Status = EFI_SUCCESS; | |
591 | PixelInformation = &This->Mode->Info->PixelInformation; | |
592 | HorizontalResolution = This->Mode->Info->HorizontalResolution; | |
593 | FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); | |
594 | ||
595 | if(( Delta != 0 ) && ( Delta != Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL))) { | |
596 | // Delta is not zero and it is different from the width. | |
597 | // Divide it by the size of a pixel to find out the buffer's horizontal resolution. | |
598 | BltBufferHorizontalResolution = (UINT32) (Delta / sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); | |
599 | } else { | |
600 | BltBufferHorizontalResolution = Width; | |
601 | } | |
602 | ||
603 | LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel); | |
604 | ||
605 | switch (BitsPerPixel) { | |
606 | case LCD_BITS_PER_PIXEL_24: | |
607 | WidthInBytes = Width * 4; | |
608 | ||
609 | // Access each pixel inside the BltBuffer Memory | |
610 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
611 | SourceLine < SourceY + Height; | |
612 | SourceLine++, DestinationLine++) | |
613 | { | |
614 | // Calculate the source and target addresses using 32bit pointer arithmetic: | |
615 | SourceAddr = (VOID *)((UINT32 *)BltBuffer + SourceLine * BltBufferHorizontalResolution + SourceX ); | |
616 | DestinationAddr = (VOID *)((UINT32 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationX); | |
617 | ||
618 | // Copy the entire row Y | |
619 | CopyMem( DestinationAddr, SourceAddr, WidthInBytes); | |
620 | } | |
621 | break; | |
622 | ||
623 | case LCD_BITS_PER_PIXEL_16_555: | |
624 | // Access each pixel inside the BltBuffer Memory | |
625 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
626 | SourceLine < SourceY + Height; | |
627 | SourceLine++, DestinationLine++) { | |
628 | ||
629 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
630 | SourcePixelX < SourceX + Width; | |
631 | SourcePixelX++, DestinationPixelX++) | |
632 | { | |
633 | // Calculate the source and target addresses: | |
634 | EfiSourcePixel = BltBuffer + SourceLine * BltBufferHorizontalResolution + SourcePixelX; | |
635 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
636 | ||
637 | // Copy the pixel into the new target | |
638 | // Only the most significant bits will be copied across: | |
639 | // To convert from 8 bits to 5 bits per pixel we throw away the 3 least significant bits | |
640 | *DestinationPixel16bit = (UINT16) ( | |
641 | ( (EfiSourcePixel->Red << 7) & PixelInformation->RedMask ) | |
642 | | ( (EfiSourcePixel->Green << 2) & PixelInformation->GreenMask ) | |
643 | | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) | |
644 | // | ( 0 & PixelInformation->ReservedMask ) | |
645 | ); | |
646 | } | |
647 | } | |
648 | break; | |
649 | ||
650 | case LCD_BITS_PER_PIXEL_16_565: | |
651 | // Access each pixel inside the BltBuffer Memory | |
652 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
653 | SourceLine < SourceY + Height; | |
654 | SourceLine++, DestinationLine++) { | |
655 | ||
656 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
657 | SourcePixelX < SourceX + Width; | |
658 | SourcePixelX++, DestinationPixelX++) | |
659 | { | |
660 | // Calculate the source and target addresses: | |
661 | EfiSourcePixel = BltBuffer + SourceLine * BltBufferHorizontalResolution + SourcePixelX; | |
662 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
663 | ||
664 | // Copy the pixel into the new target | |
665 | // Only the most significant bits will be copied across: | |
666 | // To convert from 8 bits to 5 or 6 bits per pixel we throw away the 3 or 2 least significant bits | |
667 | // There is no room for the Reserved byte so we ignore that completely | |
668 | *DestinationPixel16bit = (UINT16) ( | |
669 | ( (EfiSourcePixel->Red << 8) & PixelInformation->RedMask ) | |
670 | | ( (EfiSourcePixel->Green << 3) & PixelInformation->GreenMask ) | |
671 | | ( (EfiSourcePixel->Blue >> 3) & PixelInformation->BlueMask ) | |
672 | ); | |
673 | } | |
674 | } | |
675 | break; | |
676 | ||
677 | case LCD_BITS_PER_PIXEL_12_444: | |
678 | // Access each pixel inside the BltBuffer Memory | |
679 | for (SourceLine = SourceY, DestinationLine = DestinationY; | |
680 | SourceLine < SourceY + Height; | |
681 | SourceLine++, DestinationLine++) { | |
682 | ||
683 | for (SourcePixelX = SourceX, DestinationPixelX = DestinationX; | |
684 | SourcePixelX < SourceX + Width; | |
685 | SourcePixelX++, DestinationPixelX++) | |
686 | { | |
687 | // Calculate the source and target addresses: | |
688 | EfiSourcePixel = BltBuffer + SourceLine * BltBufferHorizontalResolution + SourcePixelX; | |
689 | DestinationPixel16bit = (UINT16 *)FrameBufferBase + DestinationLine * HorizontalResolution + DestinationPixelX; | |
690 | ||
691 | // Copy the pixel into the new target | |
692 | // Only the most significant bits will be copied across: | |
693 | // To convert from 8 bits to 5 bits per pixel we throw away the 3 least significant bits | |
694 | *DestinationPixel16bit = (UINT16) ( | |
695 | ( (EfiSourcePixel->Red << 4) & PixelInformation->RedMask ) | |
696 | | ( (EfiSourcePixel->Green ) & PixelInformation->GreenMask ) | |
697 | | ( (EfiSourcePixel->Blue >> 4) & PixelInformation->BlueMask ) | |
698 | // | ( 0 & PixelInformation->ReservedMask ) | |
699 | ); | |
700 | } | |
701 | } | |
702 | break; | |
703 | ||
704 | case LCD_BITS_PER_PIXEL_8: | |
705 | case LCD_BITS_PER_PIXEL_4: | |
706 | case LCD_BITS_PER_PIXEL_2: | |
707 | case LCD_BITS_PER_PIXEL_1: | |
708 | default: | |
709 | // Can't handle this case | |
710 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: EfiBltBufferToVideo: INVALID Number of Bits Per Pixel: %d\n", BitsPerPixel)); | |
711 | Status = EFI_INVALID_PARAMETER; | |
712 | break; | |
713 | } | |
714 | return Status; | |
715 | } | |
716 | ||
717 | STATIC | |
718 | EFI_STATUS | |
719 | BltVideoToVideo ( | |
720 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, | |
721 | IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL | |
722 | IN UINTN SourceX, | |
723 | IN UINTN SourceY, | |
724 | IN UINTN DestinationX, | |
725 | IN UINTN DestinationY, | |
726 | IN UINTN Width, | |
727 | IN UINTN Height, | |
728 | IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer | |
729 | ) | |
730 | { | |
731 | EFI_STATUS Status; | |
732 | UINT32 HorizontalResolution; | |
733 | LCD_BPP BitsPerPixel; | |
734 | VOID *FrameBufferBase; | |
735 | ||
736 | HorizontalResolution = This->Mode->Info->HorizontalResolution; | |
737 | FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); | |
738 | ||
739 | // | |
740 | // BltVideo to BltVideo: | |
741 | // | |
742 | // Source is the Video Memory, | |
743 | // Destination is the Video Memory | |
744 | ||
745 | LcdPlatformGetBpp (This->Mode->Mode,&BitsPerPixel); | |
746 | FrameBufferBase = (UINTN *)((UINTN)(This->Mode->FrameBufferBase)); | |
747 | ||
748 | // The UEFI spec currently states: | |
749 | // "There is no limitation on the overlapping of the source and destination rectangles" | |
750 | // Therefore, we must be careful to avoid overwriting the source data | |
751 | if( SourceY == DestinationY ) { | |
752 | // Copying within the same height, e.g. horizontal shift | |
753 | if( SourceX == DestinationX ) { | |
754 | // Nothing to do | |
755 | Status = EFI_SUCCESS; | |
756 | } else if( ((SourceX>DestinationX)?(SourceX - DestinationX):(DestinationX - SourceX)) < Width ) { | |
757 | // There is overlap | |
758 | Status = VideoCopyHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); | |
759 | } else { | |
760 | // No overlap | |
761 | Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); | |
762 | } | |
763 | } else { | |
764 | // Copying from different heights | |
765 | Status = VideoCopyNoHorizontalOverlap (BitsPerPixel, FrameBufferBase, HorizontalResolution, SourceX, SourceY, DestinationX, DestinationY, Width, Height ); | |
766 | } | |
767 | ||
768 | return Status; | |
769 | } | |
770 | ||
771 | /*************************************** | |
772 | * GraphicsOutput Protocol function, mapping to | |
773 | * EFI_GRAPHICS_OUTPUT_PROTOCOL.Blt | |
774 | * | |
775 | * PRESUMES: 1 pixel = 4 bytes (32bits) | |
776 | * ***************************************/ | |
777 | EFI_STATUS | |
778 | EFIAPI | |
779 | LcdGraphicsBlt ( | |
780 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, | |
781 | IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL | |
782 | IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation, | |
783 | IN UINTN SourceX, | |
784 | IN UINTN SourceY, | |
785 | IN UINTN DestinationX, | |
786 | IN UINTN DestinationY, | |
787 | IN UINTN Width, | |
788 | IN UINTN Height, | |
789 | IN UINTN Delta OPTIONAL // Number of BYTES in a row of the BltBuffer | |
790 | ) | |
791 | { | |
792 | EFI_STATUS Status; | |
793 | UINT32 HorizontalResolution; | |
794 | UINT32 VerticalResolution; | |
795 | LCD_INSTANCE* Instance; | |
796 | ||
797 | Instance = LCD_INSTANCE_FROM_GOP_THIS(This); | |
798 | ||
799 | // Setup the hardware if not already done | |
800 | if (!mDisplayInitialized) { | |
801 | Status = InitializeDisplay (Instance); | |
802 | if (EFI_ERROR(Status)) { | |
803 | goto EXIT; | |
804 | } | |
805 | } | |
806 | ||
807 | HorizontalResolution = This->Mode->Info->HorizontalResolution; | |
808 | VerticalResolution = This->Mode->Info->VerticalResolution; | |
809 | ||
810 | DEBUG((DEBUG_INFO, "LcdGraphicsBlt (BltOperation:%d,DestX:%d,DestY:%d,Width:%d,Height:%d) res(%d,%d)\n", | |
811 | BltOperation,DestinationX,DestinationY,Width,Height,HorizontalResolution,VerticalResolution)); | |
812 | ||
813 | // Check we have reasonable parameters | |
814 | if (Width == 0 || Height == 0) { | |
815 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid dimension: Zero size area.\n" )); | |
816 | Status = EFI_INVALID_PARAMETER; | |
817 | goto EXIT; | |
818 | } | |
819 | ||
820 | if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToBltBuffer)) { | |
821 | ASSERT( BltBuffer != NULL); | |
822 | } | |
823 | ||
824 | /*if ((DestinationX >= HorizontalResolution) || (DestinationY >= VerticalResolution)) { | |
825 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: ERROR - Invalid destination.\n" )); | |
826 | Status = EFI_INVALID_PARAMETER; | |
827 | goto EXIT; | |
828 | }*/ | |
829 | ||
830 | // If we are reading data out of the video buffer, check that the source area is within the display limits | |
831 | if ((BltOperation == EfiBltVideoToBltBuffer) || (BltOperation == EfiBltVideoToVideo)) { | |
832 | if ((SourceY + Height > VerticalResolution) || (SourceX + Width > HorizontalResolution)) { | |
833 | DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid source resolution.\n" )); | |
834 | DEBUG((DEBUG_INFO, " - SourceY=%d + Height=%d > VerticalResolution=%d.\n", SourceY, Height, VerticalResolution )); | |
835 | DEBUG((DEBUG_INFO, " - SourceX=%d + Width=%d > HorizontalResolution=%d.\n", SourceX, Width, HorizontalResolution )); | |
836 | Status = EFI_INVALID_PARAMETER; | |
837 | goto EXIT; | |
838 | } | |
839 | } | |
840 | ||
841 | // If we are writing data into the video buffer, that the destination area is within the display limits | |
842 | if ((BltOperation == EfiBltVideoFill) || (BltOperation == EfiBltBufferToVideo) || (BltOperation == EfiBltVideoToVideo)) { | |
843 | if ((DestinationY + Height > VerticalResolution) || (DestinationX + Width > HorizontalResolution)) { | |
844 | DEBUG((DEBUG_INFO, "LcdGraphicsBlt: ERROR - Invalid destination resolution.\n" )); | |
845 | DEBUG((DEBUG_INFO, " - DestinationY=%d + Height=%d > VerticalResolution=%d.\n", DestinationY, Height, VerticalResolution )); | |
846 | DEBUG((DEBUG_INFO, " - DestinationX=%d + Width=%d > HorizontalResolution=%d.\n", DestinationX, Width, HorizontalResolution )); | |
847 | Status = EFI_INVALID_PARAMETER; | |
848 | goto EXIT; | |
849 | } | |
850 | } | |
851 | ||
852 | // | |
853 | // Perform the Block Transfer Operation | |
854 | // | |
855 | ||
856 | switch (BltOperation) { | |
857 | case EfiBltVideoFill: | |
858 | Status = BltVideoFill (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); | |
859 | break; | |
860 | ||
861 | case EfiBltVideoToBltBuffer: | |
862 | Status = BltVideoToBltBuffer (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); | |
863 | break; | |
864 | ||
865 | case EfiBltBufferToVideo: | |
866 | Status = BltBufferToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); | |
867 | break; | |
868 | ||
869 | case EfiBltVideoToVideo: | |
870 | Status = BltVideoToVideo (This, BltBuffer, SourceX, SourceY, DestinationX, DestinationY, Width, Height, Delta); | |
871 | break; | |
872 | ||
873 | case EfiGraphicsOutputBltOperationMax: | |
874 | default: | |
875 | DEBUG((DEBUG_ERROR, "LcdGraphicsBlt: Invalid Operation\n")); | |
876 | Status = EFI_INVALID_PARAMETER; | |
877 | break; | |
878 | } | |
879 | ||
880 | EXIT: | |
881 | return Status; | |
882 | } |