intel: Drop DRI1 SwapBuffer implementation
[mesa.git] / src / mesa / drivers / dri / intel / intel_swapbuffers.c
1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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27
28 #include "intel_blit.h"
29 #include "intel_buffers.h"
30 #include "intel_swapbuffers.h"
31 #include "intel_fbo.h"
32 #include "intel_batchbuffer.h"
33 #include "drirenderbuffer.h"
34 #include "vblank.h"
35 #include "i915_drm.h"
36
37
38
39 /*
40 * Correct a drawablePrivate's set of vblank flags WRT the current context.
41 * When considering multiple crtcs.
42 */
43 GLuint
44 intelFixupVblank(struct intel_context *intel, __DRIdrawable *dPriv)
45 {
46 if (!intel->intelScreen->driScrnPriv->dri2.enabled &&
47 intel->intelScreen->driScrnPriv->ddx_version.minor >= 7) {
48 volatile drm_i915_sarea_t *sarea = intel->sarea;
49 drm_clip_rect_t drw_rect = { .x1 = dPriv->x, .x2 = dPriv->x + dPriv->w,
50 .y1 = dPriv->y, .y2 = dPriv->y + dPriv->h };
51 drm_clip_rect_t planeA_rect = { .x1 = sarea->planeA_x, .y1 = sarea->planeA_y,
52 .x2 = sarea->planeA_x + sarea->planeA_w,
53 .y2 = sarea->planeA_y + sarea->planeA_h };
54 drm_clip_rect_t planeB_rect = { .x1 = sarea->planeB_x, .y1 = sarea->planeB_y,
55 .x2 = sarea->planeB_x + sarea->planeB_w,
56 .y2 = sarea->planeB_y + sarea->planeB_h };
57 GLint areaA = driIntersectArea( drw_rect, planeA_rect );
58 GLint areaB = driIntersectArea( drw_rect, planeB_rect );
59 GLuint flags;
60
61 /* Update vblank info
62 */
63 if (areaB > areaA || (areaA == areaB && areaB > 0)) {
64 flags = dPriv->vblFlags | VBLANK_FLAG_SECONDARY;
65 } else {
66 flags = dPriv->vblFlags & ~VBLANK_FLAG_SECONDARY;
67 }
68
69 /* Do the stupid test: Is one of them actually disabled?
70 */
71 if (sarea->planeA_w == 0 || sarea->planeA_h == 0) {
72 flags = dPriv->vblFlags | VBLANK_FLAG_SECONDARY;
73 } else if (sarea->planeB_w == 0 || sarea->planeB_h == 0) {
74 flags = dPriv->vblFlags & ~VBLANK_FLAG_SECONDARY;
75 }
76
77 return flags;
78 } else {
79 return dPriv->vblFlags & ~VBLANK_FLAG_SECONDARY;
80 }
81 }
82
83 /**
84 * This will be called whenever the currently bound window is moved/resized.
85 * XXX: actually, it seems to NOT be called when the window is only moved (BP).
86 */
87 void
88 intelWindowMoved(struct intel_context *intel)
89 {
90 GLcontext *ctx = &intel->ctx;
91 __DRIdrawable *dPriv = intel->driDrawable;
92 struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
93
94 if (!intel->intelScreen->driScrnPriv->dri2.enabled &&
95 intel->intelScreen->driScrnPriv->ddx_version.minor >= 7) {
96 GLuint flags = intelFixupVblank(intel, dPriv);
97
98 /* Check to see if we changed pipes */
99 if (flags != dPriv->vblFlags && dPriv->vblFlags &&
100 !(dPriv->vblFlags & VBLANK_FLAG_NO_IRQ)) {
101 int64_t count;
102 drmVBlank vbl;
103 int i;
104
105 /*
106 * Deal with page flipping
107 */
108 vbl.request.type = DRM_VBLANK_ABSOLUTE;
109
110 if ( dPriv->vblFlags & VBLANK_FLAG_SECONDARY ) {
111 vbl.request.type |= DRM_VBLANK_SECONDARY;
112 }
113
114 for (i = 0; i < 2; i++) {
115 if (!intel_fb->color_rb[i] ||
116 (intel_fb->vbl_waited - intel_fb->color_rb[i]->vbl_pending) <=
117 (1<<23))
118 continue;
119
120 vbl.request.sequence = intel_fb->color_rb[i]->vbl_pending;
121 drmWaitVBlank(intel->driFd, &vbl);
122 }
123
124 /*
125 * Update msc_base from old pipe
126 */
127 driDrawableGetMSC32(dPriv->driScreenPriv, dPriv, &count);
128 dPriv->msc_base = count;
129 /*
130 * Then get new vblank_base and vblSeq values
131 */
132 dPriv->vblFlags = flags;
133 driGetCurrentVBlank(dPriv);
134 dPriv->vblank_base = dPriv->vblSeq;
135
136 intel_fb->vbl_waited = dPriv->vblSeq;
137
138 for (i = 0; i < 2; i++) {
139 if (intel_fb->color_rb[i])
140 intel_fb->color_rb[i]->vbl_pending = intel_fb->vbl_waited;
141 }
142 }
143 } else {
144 dPriv->vblFlags &= ~VBLANK_FLAG_SECONDARY;
145 }
146
147 /* Update Mesa's notion of window size */
148 driUpdateFramebufferSize(ctx, dPriv);
149 intel_fb->Base.Initialized = GL_TRUE; /* XXX remove someday */
150
151 /* Update hardware scissor */
152 if (ctx->Driver.Scissor != NULL) {
153 ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
154 ctx->Scissor.Width, ctx->Scissor.Height);
155 }
156
157 /* Re-calculate viewport related state */
158 if (ctx->Driver.DepthRange != NULL)
159 ctx->Driver.DepthRange( ctx, ctx->Viewport.Near, ctx->Viewport.Far );
160 }