]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | FrameBufferBltLib - Library to perform blt operations on a frame buffer.\r | |
3 | \r | |
4 | Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "PiDxe.h"\r | |
16 | #include <Library/BaseLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/BltLib.h>\r | |
19 | #include <Library/DebugLib.h>\r | |
20 | \r | |
21 | #if 0\r | |
22 | #define VDEBUG DEBUG\r | |
23 | #else\r | |
24 | #define VDEBUG(x)\r | |
25 | #endif\r | |
26 | \r | |
27 | #define MAX_LINE_BUFFER_SIZE (SIZE_4KB * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r | |
28 | \r | |
29 | UINTN mBltLibColorDepth;\r | |
30 | UINTN mBltLibWidthInBytes;\r | |
31 | UINTN mBltLibBytesPerPixel;\r | |
32 | UINTN mBltLibWidthInPixels;\r | |
33 | UINTN mBltLibHeight;\r | |
34 | UINT8 mBltLibLineBuffer[MAX_LINE_BUFFER_SIZE];\r | |
35 | UINT8 *mBltLibFrameBuffer;\r | |
36 | EFI_GRAPHICS_PIXEL_FORMAT mPixelFormat;\r | |
37 | EFI_PIXEL_BITMASK mPixelBitMasks;\r | |
38 | INTN mPixelShl[4]; // R-G-B-Rsvd\r | |
39 | INTN mPixelShr[4]; // R-G-B-Rsvd\r | |
40 | \r | |
41 | \r | |
42 | VOID\r | |
43 | ConfigurePixelBitMaskFormat (\r | |
44 | IN EFI_PIXEL_BITMASK *BitMask\r | |
45 | )\r | |
46 | {\r | |
47 | UINTN Loop;\r | |
48 | UINT32 *Masks;\r | |
49 | UINT32 MergedMasks;\r | |
50 | \r | |
51 | MergedMasks = 0;\r | |
52 | Masks = (UINT32*) BitMask;\r | |
53 | for (Loop = 0; Loop < 3; Loop++) {\r | |
54 | ASSERT ((Loop == 3) || (Masks[Loop] != 0));\r | |
55 | ASSERT ((MergedMasks & Masks[Loop]) == 0);\r | |
56 | mPixelShl[Loop] = HighBitSet32 (Masks[Loop]) - 23 + (Loop * 8);\r | |
57 | if (mPixelShl[Loop] < 0) {\r | |
58 | mPixelShr[Loop] = -mPixelShl[Loop];\r | |
59 | mPixelShl[Loop] = 0;\r | |
60 | } else {\r | |
61 | mPixelShr[Loop] = 0;\r | |
62 | }\r | |
63 | MergedMasks = (UINT32) (MergedMasks | Masks[Loop]);\r | |
64 | DEBUG ((EFI_D_INFO, "%d: shl:%d shr:%d mask:%x\n", Loop, mPixelShl[Loop], mPixelShr[Loop], Masks[Loop]));\r | |
65 | }\r | |
66 | MergedMasks = (UINT32) (MergedMasks | Masks[3]);\r | |
67 | \r | |
68 | ASSERT (MergedMasks != 0);\r | |
69 | mBltLibBytesPerPixel = (UINTN) ((HighBitSet32 (MergedMasks) + 7) / 8);\r | |
70 | \r | |
71 | DEBUG ((EFI_D_INFO, "Bytes per pixel: %d\n", mBltLibBytesPerPixel));\r | |
72 | \r | |
73 | CopyMem (&mPixelBitMasks, BitMask, sizeof (*BitMask));\r | |
74 | }\r | |
75 | \r | |
76 | \r | |
77 | /**\r | |
78 | Configure the FrameBufferLib instance\r | |
79 | \r | |
80 | @param[in] FrameBuffer Pointer to the start of the frame buffer\r | |
81 | @param[in] FrameBufferInfo Describes the frame buffer characteristics\r | |
82 | \r | |
83 | @retval EFI_INVALID_PARAMETER - Invalid parameter\r | |
84 | @retval EFI_UNSUPPORTED - The BltLib does not support this configuration\r | |
85 | @retval EFI_SUCCESS - Blt operation success\r | |
86 | \r | |
87 | **/\r | |
88 | EFI_STATUS\r | |
89 | EFIAPI\r | |
90 | BltLibConfigure (\r | |
91 | IN VOID *FrameBuffer,\r | |
92 | IN EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *FrameBufferInfo\r | |
93 | )\r | |
94 | {\r | |
95 | STATIC EFI_PIXEL_BITMASK RgbPixelMasks =\r | |
96 | { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 };\r | |
97 | STATIC EFI_PIXEL_BITMASK BgrPixelMasks =\r | |
98 | { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 };\r | |
99 | \r | |
100 | switch (FrameBufferInfo->PixelFormat) {\r | |
101 | case PixelRedGreenBlueReserved8BitPerColor:\r | |
102 | ConfigurePixelBitMaskFormat (&RgbPixelMasks);\r | |
103 | break;\r | |
104 | case PixelBlueGreenRedReserved8BitPerColor:\r | |
105 | ConfigurePixelBitMaskFormat (&BgrPixelMasks);\r | |
106 | break;\r | |
107 | case PixelBitMask:\r | |
108 | ConfigurePixelBitMaskFormat (&(FrameBufferInfo->PixelInformation));\r | |
109 | break;\r | |
110 | case PixelBltOnly:\r | |
111 | ASSERT (FrameBufferInfo->PixelFormat != PixelBltOnly);\r | |
112 | return EFI_UNSUPPORTED;\r | |
113 | default:\r | |
114 | ASSERT (FALSE);\r | |
115 | return EFI_INVALID_PARAMETER;\r | |
116 | }\r | |
117 | mPixelFormat = FrameBufferInfo->PixelFormat;\r | |
118 | \r | |
119 | mBltLibFrameBuffer = (UINT8*) FrameBuffer;\r | |
120 | mBltLibWidthInPixels = (UINTN) FrameBufferInfo->HorizontalResolution;\r | |
121 | mBltLibHeight = (UINTN) FrameBufferInfo->VerticalResolution;\r | |
122 | mBltLibWidthInBytes = mBltLibWidthInPixels * mBltLibBytesPerPixel;\r | |
123 | \r | |
124 | ASSERT (mBltLibWidthInBytes < sizeof (mBltLibLineBuffer));\r | |
125 | \r | |
126 | return EFI_SUCCESS;\r | |
127 | }\r | |
128 | \r | |
129 | \r | |
130 | /**\r | |
131 | Performs a UEFI Graphics Output Protocol Blt operation.\r | |
132 | \r | |
133 | @param[in,out] BltBuffer - The data to transfer to screen\r | |
134 | @param[in] BltOperation - The operation to perform\r | |
135 | @param[in] SourceX - The X coordinate of the source for BltOperation\r | |
136 | @param[in] SourceY - The Y coordinate of the source for BltOperation\r | |
137 | @param[in] DestinationX - The X coordinate of the destination for BltOperation\r | |
138 | @param[in] DestinationY - The Y coordinate of the destination for BltOperation\r | |
139 | @param[in] Width - The width of a rectangle in the blt rectangle in pixels\r | |
140 | @param[in] Height - The height of a rectangle in the blt rectangle in pixels\r | |
141 | @param[in] Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.\r | |
142 | If a Delta of 0 is used, the entire BltBuffer will be operated on.\r | |
143 | If a subrectangle of the BltBuffer is used, then Delta represents\r | |
144 | the number of bytes in a row of the BltBuffer.\r | |
145 | \r | |
146 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
147 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
148 | @retval EFI_SUCCESS - Blt operation success\r | |
149 | \r | |
150 | **/\r | |
151 | EFI_STATUS\r | |
152 | EFIAPI\r | |
153 | BltLibGopBlt (\r | |
154 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL\r | |
155 | IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,\r | |
156 | IN UINTN SourceX,\r | |
157 | IN UINTN SourceY,\r | |
158 | IN UINTN DestinationX,\r | |
159 | IN UINTN DestinationY,\r | |
160 | IN UINTN Width,\r | |
161 | IN UINTN Height,\r | |
162 | IN UINTN Delta\r | |
163 | )\r | |
164 | {\r | |
165 | switch (BltOperation) {\r | |
166 | case EfiBltVideoToBltBuffer:\r | |
167 | return BltLibVideoToBltBufferEx (\r | |
168 | BltBuffer,\r | |
169 | SourceX,\r | |
170 | SourceY,\r | |
171 | DestinationX,\r | |
172 | DestinationY,\r | |
173 | Width,\r | |
174 | Height,\r | |
175 | Delta\r | |
176 | );\r | |
177 | \r | |
178 | case EfiBltVideoToVideo:\r | |
179 | return BltLibVideoToVideo (\r | |
180 | SourceX,\r | |
181 | SourceY,\r | |
182 | DestinationX,\r | |
183 | DestinationY,\r | |
184 | Width,\r | |
185 | Height\r | |
186 | );\r | |
187 | \r | |
188 | case EfiBltVideoFill:\r | |
189 | return BltLibVideoFill (\r | |
190 | BltBuffer,\r | |
191 | DestinationX,\r | |
192 | DestinationY,\r | |
193 | Width,\r | |
194 | Height\r | |
195 | );\r | |
196 | \r | |
197 | case EfiBltBufferToVideo:\r | |
198 | return BltLibBufferToVideoEx (\r | |
199 | BltBuffer,\r | |
200 | SourceX,\r | |
201 | SourceY,\r | |
202 | DestinationX,\r | |
203 | DestinationY,\r | |
204 | Width,\r | |
205 | Height,\r | |
206 | Delta\r | |
207 | );\r | |
208 | default:\r | |
209 | return EFI_INVALID_PARAMETER;\r | |
210 | }\r | |
211 | }\r | |
212 | \r | |
213 | \r | |
214 | /**\r | |
215 | Performs a UEFI Graphics Output Protocol Blt Video Fill.\r | |
216 | \r | |
217 | @param[in] Color Color to fill the region with\r | |
218 | @param[in] DestinationX X location to start fill operation\r | |
219 | @param[in] DestinationY Y location to start fill operation\r | |
220 | @param[in] Width Width (in pixels) to fill\r | |
221 | @param[in] Height Height to fill\r | |
222 | \r | |
223 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
224 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
225 | @retval EFI_SUCCESS - The sizes were returned\r | |
226 | \r | |
227 | **/\r | |
228 | EFI_STATUS\r | |
229 | EFIAPI\r | |
230 | BltLibVideoFill (\r | |
231 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Color,\r | |
232 | IN UINTN DestinationX,\r | |
233 | IN UINTN DestinationY,\r | |
234 | IN UINTN Width,\r | |
235 | IN UINTN Height\r | |
236 | )\r | |
237 | {\r | |
238 | UINTN DstY;\r | |
239 | VOID *BltMemDst;\r | |
240 | UINTN X;\r | |
241 | UINT8 Uint8;\r | |
242 | UINT32 Uint32;\r | |
243 | UINT64 WideFill;\r | |
244 | BOOLEAN UseWideFill;\r | |
245 | BOOLEAN LineBufferReady;\r | |
246 | UINTN Offset;\r | |
247 | UINTN WidthInBytes;\r | |
248 | UINTN SizeInBytes;\r | |
249 | \r | |
250 | //\r | |
251 | // BltBuffer to Video: Source is BltBuffer, destination is Video\r | |
252 | //\r | |
253 | if (DestinationY + Height > mBltLibHeight) {\r | |
254 | DEBUG ((EFI_D_INFO, "VideoFill: Past screen (Y)\n"));\r | |
255 | return EFI_INVALID_PARAMETER;\r | |
256 | }\r | |
257 | \r | |
258 | if (DestinationX + Width > mBltLibWidthInPixels) {\r | |
259 | DEBUG ((EFI_D_INFO, "VideoFill: Past screen (X)\n"));\r | |
260 | return EFI_INVALID_PARAMETER;\r | |
261 | }\r | |
262 | \r | |
263 | if (Width == 0 || Height == 0) {\r | |
264 | DEBUG ((EFI_D_INFO, "VideoFill: Width or Height is 0\n"));\r | |
265 | return EFI_INVALID_PARAMETER;\r | |
266 | }\r | |
267 | \r | |
268 | WidthInBytes = Width * mBltLibBytesPerPixel;\r | |
269 | \r | |
270 | Uint32 = *(UINT32*) Color;\r | |
271 | WideFill =\r | |
272 | (UINT32) (\r | |
273 | (((Uint32 << mPixelShl[0]) >> mPixelShr[0]) & mPixelBitMasks.RedMask) |\r | |
274 | (((Uint32 << mPixelShl[1]) >> mPixelShr[1]) & mPixelBitMasks.GreenMask) |\r | |
275 | (((Uint32 << mPixelShl[2]) >> mPixelShr[2]) & mPixelBitMasks.BlueMask)\r | |
276 | );\r | |
277 | VDEBUG ((EFI_D_INFO, "VideoFill: color=0x%x, wide-fill=0x%x\n", Uint32, WideFill));\r | |
278 | \r | |
279 | //\r | |
280 | // If the size of the pixel data evenly divides the sizeof\r | |
281 | // WideFill, then a wide fill operation can be used\r | |
282 | //\r | |
283 | UseWideFill = TRUE;\r | |
284 | if ((sizeof (WideFill) % mBltLibBytesPerPixel) == 0) {\r | |
285 | for (X = mBltLibBytesPerPixel; X < sizeof (WideFill); X++) {\r | |
286 | ((UINT8*)&WideFill)[X] = ((UINT8*)&WideFill)[X % mBltLibBytesPerPixel];\r | |
287 | }\r | |
288 | } else {\r | |
289 | //\r | |
290 | // If all the bytes in the pixel are the same value, then use\r | |
291 | // a wide fill operation.\r | |
292 | //\r | |
293 | for (\r | |
294 | X = 1, Uint8 = ((UINT8*)&WideFill)[0];\r | |
295 | X < mBltLibBytesPerPixel;\r | |
296 | X++) {\r | |
297 | if (Uint8 != ((UINT8*)&WideFill)[X]) {\r | |
298 | UseWideFill = FALSE;\r | |
299 | break;\r | |
300 | }\r | |
301 | }\r | |
302 | if (UseWideFill) {\r | |
303 | SetMem ((VOID*) &WideFill, sizeof (WideFill), Uint8);\r | |
304 | }\r | |
305 | }\r | |
306 | \r | |
307 | if (UseWideFill && (DestinationX == 0) && (Width == mBltLibWidthInPixels)) {\r | |
308 | VDEBUG ((EFI_D_INFO, "VideoFill (wide, one-shot)\n"));\r | |
309 | Offset = DestinationY * mBltLibWidthInPixels;\r | |
310 | Offset = mBltLibBytesPerPixel * Offset;\r | |
311 | BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r | |
312 | SizeInBytes = WidthInBytes * Height;\r | |
313 | if (SizeInBytes >= 8) {\r | |
314 | SetMem32 (BltMemDst, SizeInBytes & ~3, (UINT32) WideFill);\r | |
315 | SizeInBytes = SizeInBytes & 3;\r | |
316 | }\r | |
317 | if (SizeInBytes > 0) {\r | |
318 | SetMem (BltMemDst, SizeInBytes, (UINT8)(UINTN) WideFill);\r | |
319 | }\r | |
320 | } else {\r | |
321 | LineBufferReady = FALSE;\r | |
322 | for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {\r | |
323 | Offset = (DstY * mBltLibWidthInPixels) + DestinationX;\r | |
324 | Offset = mBltLibBytesPerPixel * Offset;\r | |
325 | BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r | |
326 | \r | |
327 | if (UseWideFill && (((UINTN) BltMemDst & 7) == 0)) {\r | |
328 | VDEBUG ((EFI_D_INFO, "VideoFill (wide)\n"));\r | |
329 | SizeInBytes = WidthInBytes;\r | |
330 | if (SizeInBytes >= 8) {\r | |
331 | SetMem64 (BltMemDst, SizeInBytes & ~7, WideFill);\r | |
332 | SizeInBytes = SizeInBytes & 7;\r | |
333 | }\r | |
334 | if (SizeInBytes > 0) {\r | |
335 | CopyMem (BltMemDst, (VOID*) &WideFill, SizeInBytes);\r | |
336 | }\r | |
337 | } else {\r | |
338 | VDEBUG ((EFI_D_INFO, "VideoFill (not wide)\n"));\r | |
339 | if (!LineBufferReady) {\r | |
340 | CopyMem (mBltLibLineBuffer, &WideFill, mBltLibBytesPerPixel);\r | |
341 | for (X = 1; X < Width; ) {\r | |
342 | CopyMem(\r | |
343 | (mBltLibLineBuffer + (X * mBltLibBytesPerPixel)),\r | |
344 | mBltLibLineBuffer,\r | |
345 | MIN (X, Width - X) * mBltLibBytesPerPixel\r | |
346 | );\r | |
347 | X = X + MIN (X, Width - X);\r | |
348 | }\r | |
349 | LineBufferReady = TRUE;\r | |
350 | }\r | |
351 | CopyMem (BltMemDst, mBltLibLineBuffer, WidthInBytes);\r | |
352 | }\r | |
353 | }\r | |
354 | }\r | |
355 | \r | |
356 | return EFI_SUCCESS;\r | |
357 | }\r | |
358 | \r | |
359 | \r | |
360 | /**\r | |
361 | Performs a UEFI Graphics Output Protocol Blt Video to Buffer operation.\r | |
362 | \r | |
363 | @param[out] BltBuffer Output buffer for pixel color data\r | |
364 | @param[in] SourceX X location within video\r | |
365 | @param[in] SourceY Y location within video\r | |
366 | @param[in] Width Width (in pixels)\r | |
367 | @param[in] Height Height\r | |
368 | \r | |
369 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
370 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
371 | @retval EFI_SUCCESS - The sizes were returned\r | |
372 | \r | |
373 | **/\r | |
374 | EFI_STATUS\r | |
375 | EFIAPI\r | |
376 | BltLibVideoToBltBuffer (\r | |
377 | OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r | |
378 | IN UINTN SourceX,\r | |
379 | IN UINTN SourceY,\r | |
380 | IN UINTN Width,\r | |
381 | IN UINTN Height\r | |
382 | )\r | |
383 | {\r | |
384 | return BltLibVideoToBltBufferEx (\r | |
385 | BltBuffer,\r | |
386 | SourceX,\r | |
387 | SourceY,\r | |
388 | 0,\r | |
389 | 0,\r | |
390 | Width,\r | |
391 | Height,\r | |
392 | 0\r | |
393 | );\r | |
394 | }\r | |
395 | \r | |
396 | \r | |
397 | /**\r | |
398 | Performs a UEFI Graphics Output Protocol Blt Video to Buffer operation\r | |
399 | with extended parameters.\r | |
400 | \r | |
401 | @param[out] BltBuffer Output buffer for pixel color data\r | |
402 | @param[in] SourceX X location within video\r | |
403 | @param[in] SourceY Y location within video\r | |
404 | @param[in] DestinationX X location within BltBuffer\r | |
405 | @param[in] DestinationY Y location within BltBuffer\r | |
406 | @param[in] Width Width (in pixels)\r | |
407 | @param[in] Height Height\r | |
408 | @param[in] Delta Number of bytes in a row of BltBuffer\r | |
409 | \r | |
410 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
411 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
412 | @retval EFI_SUCCESS - The sizes were returned\r | |
413 | \r | |
414 | **/\r | |
415 | EFI_STATUS\r | |
416 | EFIAPI\r | |
417 | BltLibVideoToBltBufferEx (\r | |
418 | OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r | |
419 | IN UINTN SourceX,\r | |
420 | IN UINTN SourceY,\r | |
421 | IN UINTN DestinationX,\r | |
422 | IN UINTN DestinationY,\r | |
423 | IN UINTN Width,\r | |
424 | IN UINTN Height,\r | |
425 | IN UINTN Delta\r | |
426 | )\r | |
427 | {\r | |
428 | UINTN DstY;\r | |
429 | UINTN SrcY;\r | |
430 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r | |
431 | VOID *BltMemSrc;\r | |
432 | VOID *BltMemDst;\r | |
433 | UINTN X;\r | |
434 | UINT32 Uint32;\r | |
435 | UINTN Offset;\r | |
436 | UINTN WidthInBytes;\r | |
437 | \r | |
438 | //\r | |
439 | // Video to BltBuffer: Source is Video, destination is BltBuffer\r | |
440 | //\r | |
441 | if (SourceY + Height > mBltLibHeight) {\r | |
442 | return EFI_INVALID_PARAMETER;\r | |
443 | }\r | |
444 | \r | |
445 | if (SourceX + Width > mBltLibWidthInPixels) {\r | |
446 | return EFI_INVALID_PARAMETER;\r | |
447 | }\r | |
448 | \r | |
449 | if (Width == 0 || Height == 0) {\r | |
450 | return EFI_INVALID_PARAMETER;\r | |
451 | }\r | |
452 | \r | |
453 | //\r | |
454 | // If Delta is zero, then the entire BltBuffer is being used, so Delta\r | |
455 | // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r | |
456 | // the number of bytes in each row can be computed.\r | |
457 | //\r | |
458 | if (Delta == 0) {\r | |
459 | Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r | |
460 | }\r | |
461 | \r | |
462 | WidthInBytes = Width * mBltLibBytesPerPixel;\r | |
463 | \r | |
464 | //\r | |
465 | // Video to BltBuffer: Source is Video, destination is BltBuffer\r | |
466 | //\r | |
467 | for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {\r | |
468 | \r | |
469 | Offset = (SrcY * mBltLibWidthInPixels) + SourceX;\r | |
470 | Offset = mBltLibBytesPerPixel * Offset;\r | |
471 | BltMemSrc = (VOID *) (mBltLibFrameBuffer + Offset);\r | |
472 | \r | |
473 | if (mPixelFormat == PixelBlueGreenRedReserved8BitPerColor) {\r | |
474 | BltMemDst =\r | |
475 | (VOID *) (\r | |
476 | (UINT8 *) BltBuffer +\r | |
477 | (DstY * Delta) +\r | |
478 | (DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r | |
479 | );\r | |
480 | } else {\r | |
481 | BltMemDst = (VOID *) mBltLibLineBuffer;\r | |
482 | }\r | |
483 | \r | |
484 | CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r | |
485 | \r | |
486 | if (mPixelFormat != PixelBlueGreenRedReserved8BitPerColor) {\r | |
487 | for (X = 0; X < Width; X++) {\r | |
488 | Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) ((UINT8 *) BltBuffer + (DstY * Delta) + (DestinationX + X) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r | |
489 | Uint32 = *(UINT32*) (mBltLibLineBuffer + (X * mBltLibBytesPerPixel));\r | |
490 | *(UINT32*) Blt =\r | |
491 | (UINT32) (\r | |
492 | (((Uint32 & mPixelBitMasks.RedMask) >> mPixelShl[0]) << mPixelShr[0]) |\r | |
493 | (((Uint32 & mPixelBitMasks.GreenMask) >> mPixelShl[1]) << mPixelShr[1]) |\r | |
494 | (((Uint32 & mPixelBitMasks.BlueMask) >> mPixelShl[2]) << mPixelShr[2])\r | |
495 | );\r | |
496 | }\r | |
497 | }\r | |
498 | }\r | |
499 | \r | |
500 | return EFI_SUCCESS;\r | |
501 | }\r | |
502 | \r | |
503 | \r | |
504 | /**\r | |
505 | Performs a UEFI Graphics Output Protocol Blt Buffer to Video operation.\r | |
506 | \r | |
507 | @param[in] BltBuffer Output buffer for pixel color data\r | |
508 | @param[in] DestinationX X location within video\r | |
509 | @param[in] DestinationY Y location within video\r | |
510 | @param[in] Width Width (in pixels)\r | |
511 | @param[in] Height Height\r | |
512 | \r | |
513 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
514 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
515 | @retval EFI_SUCCESS - The sizes were returned\r | |
516 | \r | |
517 | **/\r | |
518 | EFI_STATUS\r | |
519 | EFIAPI\r | |
520 | BltLibBufferToVideo (\r | |
521 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r | |
522 | IN UINTN DestinationX,\r | |
523 | IN UINTN DestinationY,\r | |
524 | IN UINTN Width,\r | |
525 | IN UINTN Height\r | |
526 | )\r | |
527 | {\r | |
528 | return BltLibBufferToVideoEx (\r | |
529 | BltBuffer,\r | |
530 | 0,\r | |
531 | 0,\r | |
532 | DestinationX,\r | |
533 | DestinationY,\r | |
534 | Width,\r | |
535 | Height,\r | |
536 | 0\r | |
537 | );\r | |
538 | }\r | |
539 | \r | |
540 | \r | |
541 | /**\r | |
542 | Performs a UEFI Graphics Output Protocol Blt Buffer to Video operation\r | |
543 | with extended parameters.\r | |
544 | \r | |
545 | @param[in] BltBuffer Output buffer for pixel color data\r | |
546 | @param[in] SourceX X location within BltBuffer\r | |
547 | @param[in] SourceY Y location within BltBuffer\r | |
548 | @param[in] DestinationX X location within video\r | |
549 | @param[in] DestinationY Y location within video\r | |
550 | @param[in] Width Width (in pixels)\r | |
551 | @param[in] Height Height\r | |
552 | @param[in] Delta Number of bytes in a row of BltBuffer\r | |
553 | \r | |
554 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
555 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
556 | @retval EFI_SUCCESS - The sizes were returned\r | |
557 | \r | |
558 | **/\r | |
559 | EFI_STATUS\r | |
560 | EFIAPI\r | |
561 | BltLibBufferToVideoEx (\r | |
562 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,\r | |
563 | IN UINTN SourceX,\r | |
564 | IN UINTN SourceY,\r | |
565 | IN UINTN DestinationX,\r | |
566 | IN UINTN DestinationY,\r | |
567 | IN UINTN Width,\r | |
568 | IN UINTN Height,\r | |
569 | IN UINTN Delta\r | |
570 | )\r | |
571 | {\r | |
572 | UINTN DstY;\r | |
573 | UINTN SrcY;\r | |
574 | EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;\r | |
575 | VOID *BltMemSrc;\r | |
576 | VOID *BltMemDst;\r | |
577 | UINTN X;\r | |
578 | UINT32 Uint32;\r | |
579 | UINTN Offset;\r | |
580 | UINTN WidthInBytes;\r | |
581 | \r | |
582 | //\r | |
583 | // BltBuffer to Video: Source is BltBuffer, destination is Video\r | |
584 | //\r | |
585 | if (DestinationY + Height > mBltLibHeight) {\r | |
586 | return EFI_INVALID_PARAMETER;\r | |
587 | }\r | |
588 | \r | |
589 | if (DestinationX + Width > mBltLibWidthInPixels) {\r | |
590 | return EFI_INVALID_PARAMETER;\r | |
591 | }\r | |
592 | \r | |
593 | if (Width == 0 || Height == 0) {\r | |
594 | return EFI_INVALID_PARAMETER;\r | |
595 | }\r | |
596 | \r | |
597 | //\r | |
598 | // If Delta is zero, then the entire BltBuffer is being used, so Delta\r | |
599 | // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,\r | |
600 | // the number of bytes in each row can be computed.\r | |
601 | //\r | |
602 | if (Delta == 0) {\r | |
603 | Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);\r | |
604 | }\r | |
605 | \r | |
606 | WidthInBytes = Width * mBltLibBytesPerPixel;\r | |
607 | \r | |
608 | for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {\r | |
609 | \r | |
610 | Offset = (DstY * mBltLibWidthInPixels) + DestinationX;\r | |
611 | Offset = mBltLibBytesPerPixel * Offset;\r | |
612 | BltMemDst = (VOID*) (mBltLibFrameBuffer + Offset);\r | |
613 | \r | |
614 | if (mPixelFormat == PixelBlueGreenRedReserved8BitPerColor) {\r | |
615 | BltMemSrc = (VOID *) ((UINT8 *) BltBuffer + (SrcY * Delta));\r | |
616 | } else {\r | |
617 | for (X = 0; X < Width; X++) {\r | |
618 | Blt =\r | |
619 | (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (\r | |
620 | (UINT8 *) BltBuffer +\r | |
621 | (SrcY * Delta) +\r | |
622 | ((SourceX + X) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL))\r | |
623 | );\r | |
624 | Uint32 = *(UINT32*) Blt;\r | |
625 | *(UINT32*) (mBltLibLineBuffer + (X * mBltLibBytesPerPixel)) =\r | |
626 | (UINT32) (\r | |
627 | (((Uint32 << mPixelShl[0]) >> mPixelShr[0]) & mPixelBitMasks.RedMask) |\r | |
628 | (((Uint32 << mPixelShl[1]) >> mPixelShr[1]) & mPixelBitMasks.GreenMask) |\r | |
629 | (((Uint32 << mPixelShl[2]) >> mPixelShr[2]) & mPixelBitMasks.BlueMask)\r | |
630 | );\r | |
631 | }\r | |
632 | BltMemSrc = (VOID *) mBltLibLineBuffer;\r | |
633 | }\r | |
634 | \r | |
635 | CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r | |
636 | }\r | |
637 | \r | |
638 | return EFI_SUCCESS;\r | |
639 | }\r | |
640 | \r | |
641 | \r | |
642 | /**\r | |
643 | Performs a UEFI Graphics Output Protocol Blt Video to Video operation\r | |
644 | \r | |
645 | @param[in] SourceX X location within video\r | |
646 | @param[in] SourceY Y location within video\r | |
647 | @param[in] DestinationX X location within video\r | |
648 | @param[in] DestinationY Y location within video\r | |
649 | @param[in] Width Width (in pixels)\r | |
650 | @param[in] Height Height\r | |
651 | \r | |
652 | @retval EFI_DEVICE_ERROR - A hardware error occured\r | |
653 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
654 | @retval EFI_SUCCESS - The sizes were returned\r | |
655 | \r | |
656 | **/\r | |
657 | EFI_STATUS\r | |
658 | EFIAPI\r | |
659 | BltLibVideoToVideo (\r | |
660 | IN UINTN SourceX,\r | |
661 | IN UINTN SourceY,\r | |
662 | IN UINTN DestinationX,\r | |
663 | IN UINTN DestinationY,\r | |
664 | IN UINTN Width,\r | |
665 | IN UINTN Height\r | |
666 | )\r | |
667 | {\r | |
668 | VOID *BltMemSrc;\r | |
669 | VOID *BltMemDst;\r | |
670 | UINTN Offset;\r | |
671 | UINTN WidthInBytes;\r | |
672 | INTN LineStride;\r | |
673 | \r | |
674 | //\r | |
675 | // Video to Video: Source is Video, destination is Video\r | |
676 | //\r | |
677 | if (SourceY + Height > mBltLibHeight) {\r | |
678 | return EFI_INVALID_PARAMETER;\r | |
679 | }\r | |
680 | \r | |
681 | if (SourceX + Width > mBltLibWidthInPixels) {\r | |
682 | return EFI_INVALID_PARAMETER;\r | |
683 | }\r | |
684 | \r | |
685 | if (DestinationY + Height > mBltLibHeight) {\r | |
686 | return EFI_INVALID_PARAMETER;\r | |
687 | }\r | |
688 | \r | |
689 | if (DestinationX + Width > mBltLibWidthInPixels) {\r | |
690 | return EFI_INVALID_PARAMETER;\r | |
691 | }\r | |
692 | \r | |
693 | if (Width == 0 || Height == 0) {\r | |
694 | return EFI_INVALID_PARAMETER;\r | |
695 | }\r | |
696 | \r | |
697 | WidthInBytes = Width * mBltLibBytesPerPixel;\r | |
698 | \r | |
699 | Offset = (SourceY * mBltLibWidthInPixels) + SourceX;\r | |
700 | Offset = mBltLibBytesPerPixel * Offset;\r | |
701 | BltMemSrc = (VOID *) (mBltLibFrameBuffer + Offset);\r | |
702 | \r | |
703 | Offset = (DestinationY * mBltLibWidthInPixels) + DestinationX;\r | |
704 | Offset = mBltLibBytesPerPixel * Offset;\r | |
705 | BltMemDst = (VOID *) (mBltLibFrameBuffer + Offset);\r | |
706 | \r | |
707 | LineStride = mBltLibWidthInBytes;\r | |
708 | if ((UINTN) BltMemDst > (UINTN) BltMemSrc) {\r | |
709 | LineStride = -LineStride;\r | |
710 | }\r | |
711 | \r | |
712 | while (Height > 0) {\r | |
713 | CopyMem (BltMemDst, BltMemSrc, WidthInBytes);\r | |
714 | \r | |
715 | BltMemSrc = (VOID*) ((UINT8*) BltMemSrc + LineStride);\r | |
716 | BltMemDst = (VOID*) ((UINT8*) BltMemDst + LineStride);\r | |
717 | Height--;\r | |
718 | }\r | |
719 | \r | |
720 | return EFI_SUCCESS;\r | |
721 | }\r | |
722 | \r | |
723 | \r | |
724 | /**\r | |
725 | Returns the sizes related to the video device\r | |
726 | \r | |
727 | @param[out] Width Width (in pixels)\r | |
728 | @param[out] Height Height (in pixels)\r | |
729 | \r | |
730 | @retval EFI_INVALID_PARAMETER - Invalid parameter passed in\r | |
731 | @retval EFI_SUCCESS - The sizes were returned\r | |
732 | \r | |
733 | **/\r | |
734 | EFI_STATUS\r | |
735 | EFIAPI\r | |
736 | BltLibGetSizes (\r | |
737 | OUT UINTN *Width, OPTIONAL\r | |
738 | OUT UINTN *Height OPTIONAL\r | |
739 | )\r | |
740 | {\r | |
741 | if (Width != NULL) {\r | |
742 | *Width = mBltLibWidthInPixels;\r | |
743 | }\r | |
744 | if (Height != NULL) {\r | |
745 | *Height = mBltLibHeight;\r | |
746 | }\r | |
747 | \r | |
748 | return EFI_SUCCESS;\r | |
749 | }\r | |
750 | \r |