fix segfault with i915 drivers in swrast drawpixels path when resizing windows

[mesa.git] / src / mesa / drivers / dri / i915tex / intel_context.c

diff --git a/src/mesa/drivers/dri/i915tex/intel_context.c b/src/mesa/drivers/dri/i915tex/intel_context.c
index acda7b1c16d0faf644ce575e5b097be4f49a0987..40ea7564126712310578c6929d2fba98b9303f6e 100644 (file)
--- a/src/mesa/drivers/dri/i915tex/intel_context.c
+++ b/src/mesa/drivers/dri/i915tex/intel_context.c
@@ -33,6 +33,7 @@
 #include "extensions.h"
 #include "framebuffer.h"
 #include "imports.h"
+#include "points.h"
 
 #include "swrast/swrast.h"
 #include "swrast_setup/swrast_setup.h"
@@ -129,6 +130,18 @@ intelGetString(GLcontext * ctx, GLenum name)
       case PCI_CHIP_I945_GM:
          chipset = "Intel(R) 945GM";
          break;
+      case PCI_CHIP_I945_GME:
+         chipset = "Intel(R) 945GME";
+         break;
+      case PCI_CHIP_G33_G:
+        chipset = "Intel(R) G33";
+        break;
+      case PCI_CHIP_Q35_G:
+        chipset = "Intel(R) Q35";
+        break;
+      case PCI_CHIP_Q33_G:
+        chipset = "Intel(R) Q33";
+        break;
       default:
          chipset = "Unknown Intel Chipset";
          break;
@@ -208,7 +221,6 @@ static const struct tnl_pipeline_stage *intel_pipeline[] = {
    &_tnl_texgen_stage,
    &_tnl_texture_transform_stage,
    &_tnl_point_attenuation_stage,
-   &_tnl_arb_vertex_program_stage,
    &_tnl_vertex_program_stage,
 #if 1
    &_intel_render_stage,        /* ADD: unclipped rastersetup-to-dma */
@@ -346,7 +358,15 @@ intelInitContext(struct intel_context *intel,
    drmI830Sarea *saPriv = (drmI830Sarea *)
       (((GLubyte *) sPriv->pSAREA) + intelScreen->sarea_priv_offset);
    int fthrottle_mode;
+   GLboolean havePools;
+
+   DRM_LIGHT_LOCK(sPriv->fd, &sPriv->pSAREA->lock, driContextPriv->hHWContext);
+   havePools = intelCreatePools(intelScreen);
+   DRM_UNLOCK(sPriv->fd, &sPriv->pSAREA->lock, driContextPriv->hHWContext);
 
+   if (!havePools)
+      return GL_FALSE;
+     
    if (!_mesa_initialize_context(&intel->ctx,
                                  mesaVis, shareCtx,
                                  functions, (void *) intel))
@@ -390,6 +410,11 @@ intelInitContext(struct intel_context *intel,
    ctx->Const.MaxPointSizeAA = 3.0;
    ctx->Const.PointSizeGranularity = 1.0;
 
+   /* reinitialize the context point state.
+    * It depend on constants in __GLcontextRec::Const
+    */
+   _mesa_init_point(ctx);
+
    ctx->Const.MaxColorAttachments = 4;  /* XXX FBO: review this */
 
    /* Initialize the software rasterizer and helper modules. */
@@ -581,10 +606,11 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
       }
 
       /* set GLframebuffer size to match window, if needed */
-      if (driReadPriv != driDrawPriv && readFb->Width != driReadPriv->w) {
-         _mesa_resize_framebuffer(&intel->ctx, readFb,
-                                  driReadPriv->w, driReadPriv->h);
-      }         
+      driUpdateFramebufferSize(&intel->ctx, driDrawPriv);
+
+      if (driReadPriv != driDrawPriv) {
+        driUpdateFramebufferSize(&intel->ctx, driReadPriv);
+      }
 
       _mesa_make_current(&intel->ctx, &intel_fb->Base, readFb);
 
@@ -593,12 +619,23 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
       if (intel->ctx.DrawBuffer == &intel_fb->Base) {
 
         if (intel->driDrawable != driDrawPriv) {
-           intel_fb->vblank_flags = (intel->intelScreen->irq_active != 0)
-              ? driGetDefaultVBlankFlags(&intel->optionCache)
-              : VBLANK_FLAG_NO_IRQ;
-           (*dri_interface->getUST) (&intel_fb->swap_ust);
-           driDrawableInitVBlank(driDrawPriv, intel_fb->vblank_flags,
-                                 &intel_fb->vbl_seq);
+           if (driDrawPriv->pdraw->swap_interval == (unsigned)-1) {
+              int i;
+
+              intel_fb->vblank_flags = (intel->intelScreen->irq_active != 0)
+                 ? driGetDefaultVBlankFlags(&intel->optionCache)
+                : VBLANK_FLAG_NO_IRQ;
+
+              (*dri_interface->getUST) (&intel_fb->swap_ust);
+              driDrawableInitVBlank(driDrawPriv, intel_fb->vblank_flags,
+                                    &intel_fb->vbl_seq);
+              intel_fb->vbl_waited = intel_fb->vbl_seq;
+
+              for (i = 0; i < (intel->intelScreen->third.handle ? 3 : 2); i++) {
+                 if (intel_fb->color_rb[i])
+                    intel_fb->color_rb[i]->vbl_pending = intel_fb->vbl_seq;
+              }
+           }
            intel->driDrawable = driDrawPriv;
            intelWindowMoved(intel);
         }
@@ -644,37 +681,27 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
    if (sarea->width != intel->width ||
        sarea->height != intel->height ||
        sarea->rotation != intel->current_rotation) {
-      
-      void *batchMap = intel->batch->map;
-      
+      int numClipRects = intel->numClipRects;
+
       /*
        * FIXME: Really only need to do this when drawing to a
        * common back- or front buffer.
        */
 
       /*
-       * This will drop the outstanding batchbuffer on the floor
+       * This will essentially drop the outstanding batchbuffer on the floor.
        */
+      intel->numClipRects = 0;
 
-      if (batchMap != NULL) {
-        driBOUnmap(intel->batch->buffer);
-        intel->batch->map = NULL;
-      }
-
-      intel_batchbuffer_reset(intel->batch);
+      if (intel->Fallback)
+        _swrast_flush(&intel->ctx);
 
-      if (batchMap == NULL) {
-        driBOUnmap(intel->batch->buffer);
-        intel->batch->map = NULL;
-      }
+      INTEL_FIREVERTICES(intel);
 
-      /* lose all primitives */
-      intel->prim.primitive = ~0;
-      intel->prim.start_ptr = 0;
-      intel->prim.flush = 0;
+      if (intel->batch->map != intel->batch->ptr)
+        intel_batchbuffer_flush(intel->batch);
 
-      /* re-emit all state */
-      intel->vtbl.lost_hardware(intel);
+      intel->numClipRects = numClipRects;
 
       /* force window update */
       intel->lastStamp = 0;
@@ -715,7 +742,9 @@ void LOCK_HARDWARE( struct intel_context *intel )
                                    BUFFER_BACK_LEFT);
     }
 
-    if (intel_rb && (intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
+    if (intel_rb && intel_fb->vblank_flags &&
+       !(intel_fb->vblank_flags & VBLANK_FLAG_NO_IRQ) &&
+       (intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
        drmVBlank vbl;
 
        vbl.request.type = DRM_VBLANK_ABSOLUTE;