gallium/intel/gem: Use softpipe rather than i915simple if INTEL_SOFTPIPE is set.

src/gallium/drivers/softpipe/sp_texture.c

@@ -399,3 +399,22 @@ softpipe_init_screen_texture_funcs(struct pipe_screen *screen)
    screen->transfer_map = softpipe_transfer_map;
    screen->transfer_unmap = softpipe_transfer_unmap;
 }
+
+
+boolean
+softpipe_get_texture_buffer( struct pipe_texture *texture,
+                             struct pipe_buffer **buf,
+                             unsigned *stride )
+{
+   struct softpipe_texture *tex = (struct softpipe_texture *)texture;
+
+   if (!tex)
+      return FALSE;
+
+   pipe_buffer_reference(buf, tex->buffer);
+
+   if (stride)
+      *stride = tex->stride[0];
+
+   return TRUE;
+}

src/gallium/drivers/softpipe/sp_winsys.h

@@ -52,6 +52,12 @@ struct pipe_screen *
 softpipe_create_screen(struct pipe_winsys *);
 
 
+boolean
+softpipe_get_texture_buffer( struct pipe_texture *texture,
+                             struct pipe_buffer **buf,
+                             unsigned *stride );
+
+
 #ifdef __cplusplus
 }
 #endif

src/gallium/winsys/drm/intel/gem/intel_be_context.c

@@ -1,6 +1,8 @@
 
 #include "pipe/p_screen.h"
 
+#include "softpipe/sp_winsys.h"
+
 #include "intel_be_device.h"
 #include "intel_be_context.h"
 #include "intel_be_batchbuffer.h"
@@ -106,13 +108,13 @@ intel_be_create_context(struct pipe_screen *screen)
 
 	intel_be_init_context(intel, device);
 
-#if 0
-	pipe = intel_create_softpipe(intel, screen->winsys);
-#else
-	pipe = i915_create_context(screen, &device->base, &intel->base);
-#endif
+	if (getenv("INTEL_SOFTPIPE"))
+		pipe = softpipe_create(screen);
+	else
+		pipe = i915_create_context(screen, &device->base, &intel->base);
 
-	pipe->priv = intel;
+	if (pipe)
+		pipe->priv = intel;
 
 	return pipe;
 }

src/gallium/winsys/drm/intel/gem/intel_be_device.c

@@ -10,6 +10,7 @@
 #include "intel_be_fence.h"
 
 #include "i915simple/i915_winsys.h"
+#include "softpipe/sp_winsys.h"
 
 #include "intel_be_api.h"
 
@@ -302,7 +303,11 @@ intel_be_create_screen(int drmFD, int deviceID)
 
 	intel_be_init_device(dev, drmFD, deviceID);
 
-	screen = i915_create_screen(&dev->base, deviceID);
+	if (getenv("INTEL_SOFTPIPE")) {
+		screen = softpipe_create_screen(&dev->base);
+		drm_api_hooks.buffer_from_texture = softpipe_get_texture_buffer;
+	} else
+		screen = i915_create_screen(&dev->base, deviceID);
 
 	return screen;
 }

src/gallium/winsys/drm/intel/xorg/Makefile

@@ -21,6 +21,7 @@ LIBS = \
 	$(GALLIUMDIR)/state_trackers/xorg/libxorgtracker.a \
 	$(GALLIUMDIR)/winsys/drm/intel/gem/libinteldrm.a \
 	$(TOP)/src/gallium/drivers/i915simple/libi915simple.a \
+	$(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a \
 	$(GALLIUM_AUXILIARIES)
 
 #############################################
@@ -29,7 +30,7 @@ LIBS = \
 
 all default: $(TARGET)
 
-$(TARGET): $(OBJECTS) Makefile $(GALLIUMDIR)/state_trackers/xorg/libxorgtracker.a
+$(TARGET): $(OBJECTS) Makefile $(GALLIUMDIR)/state_trackers/xorg/libxorgtracker.a $(LIBS)
 	$(TOP)/bin/mklib -noprefix -o $@ \
 	$(OBJECTS) $(LIBS) $(shell pkg-config --libs libdrm) -ldrm_intel