2 * Copyright 2007-2008 Maarten Maathuis
3 * Copyright 2008 Stephane Marchesin
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
30 #include <X11/extensions/Xv.h>
33 #include "dixstruct.h"
36 #include "nv_include.h"
39 #include "nv30_shaders.h"
41 extern Atom xvSyncToVBlank, xvSetDefaults;
44 * The filtering function used for video scaling. We use a cubic filter as defined in
45 * "Reconstruction Filters in Computer Graphics"
46 * Mitchell & Netravali in SIGGRAPH '88
48 static float filter_func(float x)
51 const double C=(1.0-B)/2.0;
57 return ( (12.0-9.0*B-6.0*C)*x3+(-18.0+12.0*B+6.0*C)*x2+(6.0-2.0*B) )/6.0;
59 return ( (-B-6.0*C)*x3+(6.0*B+30.0*C)*x2+(-12.0*B-48.0*C)*x1+(8.0*B+24.0*C) )/6.0;
62 static int8_t f32tosb8(float v)
64 return (int8_t)(v*127.0);
68 * Implements the filtering as described in
69 * "Fast Third-Order Texture Filtering"
70 * Sigg & Hardwiger in GPU Gems 2
72 #define TABLE_SIZE 512
73 static void compute_filter_table(int8_t *t) {
76 for(i=0;i<TABLE_SIZE;i++) {
79 float w0=filter_func(x+1.0);
80 float w1=filter_func(x);
81 float w2=filter_func(x-1.0);
82 float w3=filter_func(x-2.0);
84 t[4*i+2]=f32tosb8(1.0+x-w1/(w0+w1));
85 t[4*i+1]=f32tosb8(1.0-x+w3/(w2+w3));
86 t[4*i+0]=f32tosb8(w0+w1);
87 t[4*i+3]=f32tosb8(0.0);
91 static struct nouveau_bo *table_mem = NULL;
93 NV40_LoadFilterTable(ScrnInfoPtr pScrn)
95 NVPtr pNv = NVPTR(pScrn);
98 if (nouveau_bo_new(pNv->dev, NOUVEAU_BO_VRAM | NOUVEAU_BO_GART,
99 0, TABLE_SIZE*sizeof(float)*4, &table_mem)) {
100 xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
101 "Couldn't alloc filter table!\n");
105 if (nouveau_bo_map(table_mem, NOUVEAU_BO_RDWR)) {
106 xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
107 "Couldn't map filter table!\n");
111 int8_t *t=table_mem->map;
112 compute_filter_table(t);
114 nouveau_bo_unmap(table_mem);
118 #define SWIZZLE(ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w) \
120 NV40TCL_TEX_SWIZZLE_S0_X_##ts0x | NV40TCL_TEX_SWIZZLE_S0_Y_##ts0y | \
121 NV40TCL_TEX_SWIZZLE_S0_Z_##ts0z | NV40TCL_TEX_SWIZZLE_S0_W_##ts0w | \
122 NV40TCL_TEX_SWIZZLE_S1_X_##ts1x | NV40TCL_TEX_SWIZZLE_S1_Y_##ts1y | \
123 NV40TCL_TEX_SWIZZLE_S1_Z_##ts1z | NV40TCL_TEX_SWIZZLE_S1_W_##ts1w \
127 * Texture 0 : filter table
129 * Texture 2 : UV data
132 NV40VideoTexture(ScrnInfoPtr pScrn, struct nouveau_bo *src, int offset,
133 uint16_t width, uint16_t height, uint16_t src_pitch, int unit)
135 NVPtr pNv = NVPTR(pScrn);
136 struct nouveau_channel *chan = pNv->chan;
137 struct nouveau_grobj *curie = pNv->Nv3D;
139 uint32_t card_fmt = 0;
140 uint32_t card_swz = 0;
144 card_fmt = NV40TCL_TEX_FORMAT_FORMAT_A8R8G8B8;
145 card_swz = SWIZZLE(S1, S1, S1, S1, X, Y, Z, W);
148 card_fmt = NV40TCL_TEX_FORMAT_FORMAT_L8;
149 card_swz = SWIZZLE(S1, S1, S1, S1, X, X, X, X);
152 card_fmt = NV40TCL_TEX_FORMAT_FORMAT_A8L8;
153 #if X_BYTE_ORDER == X_BIG_ENDIAN
154 card_swz = SWIZZLE(S1, S1, S1, S1, Z, W, X, Y); /* x = V, y = U */
156 card_swz = SWIZZLE(S1, S1, S1, S1, W, Z, Y, X); /* x = V, y = U */
161 BEGIN_RING(chan, curie, NV40TCL_TEX_OFFSET(unit), 8);
162 OUT_RELOCl(chan, src, offset, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
164 OUT_RELOCd(chan, pNv->FB, card_fmt |
165 NV40TCL_TEX_FORMAT_DIMS_1D | 0x8000 |
166 NV40TCL_TEX_FORMAT_NO_BORDER |
167 (1 << NV40TCL_TEX_FORMAT_MIPMAP_COUNT_SHIFT),
168 NOUVEAU_BO_VRAM | NOUVEAU_BO_RD,
169 NV40TCL_TEX_FORMAT_DMA0, 0);
170 OUT_RING (chan, NV40TCL_TEX_WRAP_S_REPEAT |
171 NV40TCL_TEX_WRAP_T_CLAMP_TO_EDGE |
172 NV40TCL_TEX_WRAP_R_CLAMP_TO_EDGE);
174 OUT_RELOCd(chan, pNv->FB, card_fmt | NV40TCL_TEX_FORMAT_LINEAR |
175 NV40TCL_TEX_FORMAT_RECT | 0x8000 |
176 NV40TCL_TEX_FORMAT_DIMS_2D |
177 NV40TCL_TEX_FORMAT_NO_BORDER |
178 (1 << NV40TCL_TEX_FORMAT_MIPMAP_COUNT_SHIFT),
179 NOUVEAU_BO_VRAM | NOUVEAU_BO_RD,
180 NV40TCL_TEX_FORMAT_DMA0, 0);
181 OUT_RING (chan, NV40TCL_TEX_WRAP_S_CLAMP_TO_EDGE |
182 NV40TCL_TEX_WRAP_T_CLAMP_TO_EDGE |
183 NV40TCL_TEX_WRAP_R_CLAMP_TO_EDGE);
186 OUT_RING (chan, NV40TCL_TEX_ENABLE_ENABLE);
187 OUT_RING (chan, card_swz);
189 OUT_RING (chan, NV40TCL_TEX_FILTER_SIGNED_ALPHA |
190 NV40TCL_TEX_FILTER_SIGNED_RED |
191 NV40TCL_TEX_FILTER_SIGNED_GREEN |
192 NV40TCL_TEX_FILTER_SIGNED_BLUE |
193 NV40TCL_TEX_FILTER_MIN_LINEAR |
194 NV40TCL_TEX_FILTER_MAG_LINEAR | 0x3fd6);
196 OUT_RING (chan, NV40TCL_TEX_FILTER_MIN_LINEAR |
197 NV40TCL_TEX_FILTER_MAG_LINEAR | 0x3fd6);
198 OUT_RING (chan, (width << 16) | height);
199 OUT_RING (chan, 0); /* border ARGB */
201 BEGIN_RING(chan, curie, NV40TCL_TEX_SIZE1(unit), 1);
202 OUT_RING (chan, (1 << NV40TCL_TEX_SIZE1_DEPTH_SHIFT) |
203 (uint16_t) src_pitch);
209 NV40GetSurfaceFormat(PixmapPtr ppix, int *fmt_ret)
211 switch (ppix->drawable.bitsPerPixel) {
213 *fmt_ret = NV40TCL_RT_FORMAT_COLOR_A8R8G8B8;
216 *fmt_ret = NV40TCL_RT_FORMAT_COLOR_X8R8G8B8;
219 *fmt_ret = NV40TCL_RT_FORMAT_COLOR_R5G6B5;
222 *fmt_ret = NV40TCL_RT_FORMAT_COLOR_B8;
232 NV40StopTexturedVideo(ScrnInfoPtr pScrn, pointer data, Bool Exit)
236 #define VERTEX_OUT(sx,sy,dx,dy) do { \
237 BEGIN_RING(chan, curie, NV40TCL_VTX_ATTR_2F_X(8), 4); \
238 OUT_RINGf (chan, (sx)); OUT_RINGf (chan, (sy)); \
239 OUT_RINGf (chan, (sx)/2.0); OUT_RINGf (chan, (sy)/2.0); \
240 BEGIN_RING(chan, curie, NV40TCL_VTX_ATTR_2I(0), 1); \
241 OUT_RING (chan, ((dy)<<16)|(dx)); \
245 NV40PutTextureImage(ScrnInfoPtr pScrn,
246 struct nouveau_bo *src, int src_offset, int src_offset2,
247 int id, int src_pitch, BoxPtr dstBox,
248 int x1, int y1, int x2, int y2,
249 uint16_t width, uint16_t height,
250 uint16_t src_w, uint16_t src_h,
251 uint16_t drw_w, uint16_t drw_h,
252 RegionPtr clipBoxes, PixmapPtr ppix,
255 NVPtr pNv = NVPTR(pScrn);
256 struct nouveau_channel *chan = pNv->chan;
257 struct nouveau_grobj *curie = pNv->Nv3D;
258 Bool redirected = FALSE;
259 float X1, X2, Y1, Y2;
264 if (drw_w > 4096 || drw_h > 4096) {
265 xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
266 "XV: Draw size too large.\n");
270 if (!NV40GetSurfaceFormat(ppix, &dst_format)) {
271 ErrorF("No surface format, bad.\n");
275 if (!NVExaPixmapIsOnscreen(ppix))
279 pbox = REGION_RECTS(clipBoxes);
280 nbox = REGION_NUM_RECTS(clipBoxes);
282 /* Disable blending */
283 BEGIN_RING(chan, curie, NV40TCL_BLEND_ENABLE, 1);
287 BEGIN_RING(chan, curie, NV40TCL_RT_FORMAT, 3);
288 OUT_RING (chan, NV40TCL_RT_FORMAT_TYPE_LINEAR |
289 NV40TCL_RT_FORMAT_ZETA_Z24S8 | dst_format);
290 OUT_RING (chan, exaGetPixmapPitch(ppix));
291 OUT_PIXMAPl(chan, ppix, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
293 NV40_LoadFilterTable(pScrn);
295 NV40VideoTexture(pScrn, table_mem, 0, TABLE_SIZE, 1, 0 , 0);
296 NV40VideoTexture(pScrn, src, src_offset, src_w, src_h, src_pitch, 1);
297 /* We've got NV12 format, which means half width and half height texture of chroma channels. */
298 NV40VideoTexture(pScrn, src, src_offset2, src_w/2, src_h/2, src_pitch, 2);
300 NV40_LoadVtxProg(pScrn, &nv40_vp_video);
302 NV40_LoadFragProg(pScrn, &nv40_fp_yv12_bicubic);
304 NV40_LoadFragProg(pScrn, &nv30_fp_yv12_bilinear);
306 /* Appears to be some kind of cache flush, needed here at least
307 * sometimes.. funky text rendering otherwise :)
309 BEGIN_RING(chan, curie, NV40TCL_TEX_CACHE_CTL, 1);
311 BEGIN_RING(chan, curie, NV40TCL_TEX_CACHE_CTL, 1);
314 /* Just before rendering we wait for vblank in the non-composited case. */
315 if (pPriv->SyncToVBlank && !redirected) {
316 uint8_t crtcs = nv_window_belongs_to_crtc(pScrn, dstBox->x1, dstBox->y1,
317 dstBox->x2 - dstBox->x1, dstBox->y2 - dstBox->y1);
321 NVWaitVSync(pScrn, 0);
322 else if (crtcs & 0x2)
323 NVWaitVSync(pScrn, 1);
326 /* These are fixed point values in the 16.16 format. */
327 X1 = (float)(x1>>16)+(float)(x1&0xFFFF)/(float)0x10000;
328 Y1 = (float)(y1>>16)+(float)(y1&0xFFFF)/(float)0x10000;
329 X2 = (float)(x2>>16)+(float)(x2&0xFFFF)/(float)0x10000;
330 Y2 = (float)(y2>>16)+(float)(y2&0xFFFF)/(float)0x10000;
332 BEGIN_RING(chan, curie, NV40TCL_BEGIN_END, 1);
333 OUT_RING (chan, NV40TCL_BEGIN_END_TRIANGLES);
336 float tx1=X1+(float)(pbox->x1 - dstBox->x1)*(X2-X1)/(float)(drw_w);
337 float tx2=X1+(float)(pbox->x2 - dstBox->x1)*(src_w)/(float)(drw_w);
338 float ty1=Y1+(float)(pbox->y1 - dstBox->y1)*(Y2-Y1)/(float)(drw_h);
339 float ty2=Y1+(float)(pbox->y2 - dstBox->y1)*(src_h)/(float)(drw_h);
345 BEGIN_RING(chan, curie, NV40TCL_SCISSOR_HORIZ, 2);
346 OUT_RING (chan, (sx2 << 16) | 0);
347 OUT_RING (chan, (sy2 << 16) | 0);
349 VERTEX_OUT(tx1, ty1, sx1, sy1);
350 VERTEX_OUT(tx2+(tx2-tx1), ty1, sx2+(sx2-sx1), sy1);
351 VERTEX_OUT(tx1, ty2+(ty2-ty1), sx1, sy2+(sy2-sy1));
356 BEGIN_RING(chan, curie, NV40TCL_BEGIN_END, 1);
357 OUT_RING (chan, NV40TCL_BEGIN_END_STOP);
365 * NV40SetTexturePortAttribute
366 * sets the attribute "attribute" of port "data" to value "value"
367 * supported attributes:
371 * @param attribute attribute to set
372 * @param value value to which attribute is to be set
373 * @param data port from which the attribute is to be set
375 * @return Success, if setting is successful
376 * BadValue/BadMatch, if value/attribute are invalid
379 NV40SetTexturePortAttribute(ScrnInfoPtr pScrn, Atom attribute,
380 INT32 value, pointer data)
382 NVPortPrivPtr pPriv = (NVPortPrivPtr)data;
383 NVPtr pNv = NVPTR(pScrn);
385 if ((attribute == xvSyncToVBlank) && pNv->WaitVSyncPossible) {
386 if ((value < 0) || (value > 1))
388 pPriv->SyncToVBlank = value;
390 if (attribute == xvSetDefaults) {
391 pPriv->SyncToVBlank = pNv->WaitVSyncPossible;
399 * NV40GetTexturePortAttribute
400 * reads the value of attribute "attribute" from port "data" into INT32 "*value"
403 * @param pScrn unused
404 * @param attribute attribute to be read
405 * @param value value of attribute will be stored here
406 * @param data port from which attribute will be read
407 * @return Success, if queried attribute exists
410 NV40GetTexturePortAttribute(ScrnInfoPtr pScrn, Atom attribute,
411 INT32 *value, pointer data)
413 NVPortPrivPtr pPriv = (NVPortPrivPtr)data;
415 if(attribute == xvSyncToVBlank)
416 *value = (pPriv->SyncToVBlank) ? 1 : 0;