summaryrefslogtreecommitdiff
path: root/src/amdgpu_video.c
blob: 3f441e79a4d6eae45b9a108754d45f1e64f915a9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>

#include "amdgpu_drv.h"
#include "amdgpu_glamor.h"
#include "amdgpu_probe.h"
#include "amdgpu_video.h"
#include "amdgpu_pixmap.h"

#include "xf86.h"
#include "dixstruct.h"

/* DPMS */
#ifdef HAVE_XEXTPROTO_71
#include <X11/extensions/dpmsconst.h>
#else
#define DPMS_SERVER
#include <X11/extensions/dpms.h>
#endif

#include <X11/extensions/Xv.h>
#include "fourcc.h"

#define OFF_DELAY       250	/* milliseconds */
#define FREE_DELAY      15000

#define OFF_TIMER       0x01
#define FREE_TIMER      0x02
#define CLIENT_VIDEO_ON 0x04

static void amdgpu_box_intersect(BoxPtr dest, BoxPtr a, BoxPtr b)
{
	dest->x1 = a->x1 > b->x1 ? a->x1 : b->x1;
	dest->x2 = a->x2 < b->x2 ? a->x2 : b->x2;
	dest->y1 = a->y1 > b->y1 ? a->y1 : b->y1;
	dest->y2 = a->y2 < b->y2 ? a->y2 : b->y2;

	if (dest->x1 >= dest->x2 || dest->y1 >= dest->y2)
		dest->x1 = dest->x2 = dest->y1 = dest->y2 = 0;
}

static void amdgpu_crtc_box(xf86CrtcPtr crtc, BoxPtr crtc_box)
{
	if (crtc->enabled) {
		crtc_box->x1 = crtc->x;
		crtc_box->x2 =
		    crtc->x + xf86ModeWidth(&crtc->mode, crtc->rotation);
		crtc_box->y1 = crtc->y;
		crtc_box->y2 =
		    crtc->y + xf86ModeHeight(&crtc->mode, crtc->rotation);
	} else
		crtc_box->x1 = crtc_box->x2 = crtc_box->y1 = crtc_box->y2 = 0;
}

static int amdgpu_box_area(BoxPtr box)
{
	return (int)(box->x2 - box->x1) * (int)(box->y2 - box->y1);
}

Bool amdgpu_crtc_is_enabled(xf86CrtcPtr crtc)
{
	drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
	return drmmode_crtc->pending_dpms_mode == DPMSModeOn;
}

xf86CrtcPtr
amdgpu_pick_best_crtc(ScrnInfoPtr pScrn, Bool consider_disabled,
		      int x1, int x2, int y1, int y2)
{
	xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
	int coverage, best_coverage, c, cd;
	BoxRec box, crtc_box, cover_box;
	RROutputPtr primary_output = NULL;
	xf86CrtcPtr best_crtc = NULL, primary_crtc = NULL;

	if (!pScrn->vtSema)
		return NULL;

	box.x1 = x1;
	box.x2 = x2;
	box.y1 = y1;
	box.y2 = y2;
	best_coverage = 0;

	/* Prefer the CRTC of the primary output */
	if (dixPrivateKeyRegistered(rrPrivKey))
	{
		primary_output = RRFirstOutput(pScrn->pScreen);
	}
	if (primary_output && primary_output->crtc)
		primary_crtc = primary_output->crtc->devPrivate;

	/* first consider only enabled CRTCs
	 * then on second pass consider disabled ones
	 */
	for (cd = 0; cd < (consider_disabled ? 2 : 1); cd++) {
		for (c = 0; c < xf86_config->num_crtc; c++) {
			xf86CrtcPtr crtc = xf86_config->crtc[c];

			if (!cd && !amdgpu_crtc_is_enabled(crtc))
				continue;

			amdgpu_crtc_box(crtc, &crtc_box);
			amdgpu_box_intersect(&cover_box, &crtc_box, &box);
			coverage = amdgpu_box_area(&cover_box);
			if (coverage > best_coverage ||
			    (coverage == best_coverage &&
			     crtc == primary_crtc)) {
				best_crtc = crtc;
				best_coverage = coverage;
			}
		}
		if (best_crtc)
			break;
	}

	return best_crtc;
}

void AMDGPUInitVideo(ScreenPtr pScreen)
{
	ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
	AMDGPUInfoPtr info = AMDGPUPTR(pScrn);
	XF86VideoAdaptorPtr *adaptors, *newAdaptors = NULL;
	XF86VideoAdaptorPtr texturedAdaptor = NULL;
	int num_adaptors;

	num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
	newAdaptors =
	    malloc((num_adaptors + 2) * sizeof(*newAdaptors));
	if (newAdaptors == NULL)
		return;

	memcpy(newAdaptors, adaptors,
	       num_adaptors * sizeof(XF86VideoAdaptorPtr));
	adaptors = newAdaptors;

	if (info->use_glamor) {
		texturedAdaptor = amdgpu_glamor_xv_init(pScreen, 16);
		if (texturedAdaptor != NULL) {
			adaptors[num_adaptors++] = texturedAdaptor;
			xf86DrvMsg(pScrn->scrnIndex, X_INFO,
				   "Set up textured video (glamor)\n");
		} else
			xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
				   "Failed to set up textured video (glamor)\n");
	}

	if (num_adaptors)
		xf86XVScreenInit(pScreen, adaptors, num_adaptors);

	if (newAdaptors)
		free(newAdaptors);

}