gbm: Add gallium (drm) backend

3 files changed, 346 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/gbm/Makefile b/src/gallium/state_trackers/gbm/Makefile
new file mode 100644
index 00000000000..1d96eb2032d
--- /dev/null
+++ b/src/gallium/state_trackers/gbm/Makefile
@@ -0,0 +1,46 @@
+TOP = ../../../..
+include $(TOP)/configs/current
+
+gbm_INCLUDES = \
+	-I. \
+	-I$(TOP)/src/gallium/include \
+	-I$(TOP)/src/gallium/auxiliary \
+	-I$(TOP)/src/gbm/main \
+	-I$(TOP)/include
+
+gbm_SOURCES = $(wildcard *.c)
+gbm_OBJECTS = $(gbm_SOURCES:.c=.o)
+
+ALL_INCLUDES = $(gbm_INCLUDES)
+ALL_SOURCES = $(gbm_SOURCES)
+
+GBM_OBJECTS = $(gbm_OBJECTS)
+GBM_CPPFLAGS = $(gbm_INCLUDES)
+
+##### TARGETS #####
+
+default: depend libgbm.a
+
+libgbm.a: $(GBM_OBJECTS) Makefile
+	$(MKLIB) -o gbm -static $(GBM_OBJECTS)
+
+depend: 
+	rm -f depend
+	touch depend
+	$(MKDEP) $(MKDEP_OPTIONS) $(ALL_INCLUDES) $(ALL_SOURCES) 2> /dev/null
+
+clean:
+	rm -f libgbm.a
+	rm -f $(GBM_OBJECTS)
+	rm -f depend depend.bak
+
+# Dummy target
+install:
+	@echo -n ""
+
+##### RULES #####
+
+$(gbm_OBJECTS): %.o: %.c
+	$(CC) -c $(GBM_CPPFLAGS) $(DEFINES) $(CFLAGS) $< -o $@
+
+sinclude depend
diff --git a/src/gallium/state_trackers/gbm/gbm_drm.c b/src/gallium/state_trackers/gbm/gbm_drm.c
new file mode 100644
index 00000000000..d4baf87096a
--- /dev/null
+++ b/src/gallium/state_trackers/gbm/gbm_drm.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Benjamin Franzke <[email protected]>
+ */
+
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+
+#include "state_tracker/drm_driver.h"
+
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "gbm_gallium_drmint.h"
+
+static INLINE enum pipe_format
+gbm_format_to_gallium(enum gbm_bo_format format)
+{
+   switch (format) {
+   case GBM_BO_FORMAT_XRGB8888:
+      return PIPE_FORMAT_B8G8R8X8_UNORM;
+   case GBM_BO_FORMAT_ARGB8888:
+      return PIPE_FORMAT_B8G8R8A8_UNORM;
+   default:
+      return PIPE_FORMAT_NONE;
+   }
+
+   return PIPE_FORMAT_NONE;
+}
+
+static INLINE uint
+gbm_usage_to_gallium(uint usage)
+{
+   uint resource_usage = 0;
+
+   if (usage & GBM_BO_USE_SCANOUT)
+      resource_usage |= PIPE_BIND_SCANOUT;
+
+   if (usage & GBM_BO_USE_RENDERING)
+      resource_usage |= PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
+
+   if (usage & GBM_BO_USE_CURSOR_64X64)
+      resource_usage |= PIPE_BIND_CURSOR;
+
+   return resource_usage;
+}
+
+static int
+gbm_gallium_drm_is_format_supported(struct gbm_device *gbm,
+                                    enum gbm_bo_format format,
+                                    uint32_t usage)
+{
+   struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
+   enum pipe_format pf;
+
+   pf = gbm_format_to_gallium(format);
+   if (pf == PIPE_FORMAT_NONE)
+      return 0;
+
+   if (!gdrm->screen->is_format_supported(gdrm->screen, PIPE_TEXTURE_2D, pf, 0,
+                                          gbm_usage_to_gallium(usage)))
+      return 0;
+
+   if (usage & GBM_BO_USE_SCANOUT && format != GBM_BO_FORMAT_XRGB8888)
+      return 0;
+
+   return 1;
+}
+
+static void
+gbm_gallium_drm_bo_destroy(struct gbm_bo *_bo)
+{
+   struct gbm_gallium_drm_bo *bo = gbm_gallium_drm_bo(_bo);
+
+   pipe_resource_reference(&bo->resource, NULL);
+   free(bo);
+}
+
+static struct gbm_bo *
+gbm_gallium_drm_bo_create_from_egl_image(struct gbm_device *gbm,
+                                         void *egl_dpy, void *egl_image,
+                                         uint32_t width, uint32_t height,
+                                         uint32_t usage)
+{
+   struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
+   struct gbm_gallium_drm_bo *bo;
+   struct winsys_handle whandle;
+
+   if (!gdrm->lookup_egl_image)
+      return NULL;
+
+   bo = CALLOC_STRUCT(gbm_gallium_drm_bo);
+   if (bo == NULL)
+      return NULL;
+
+   bo->resource = gdrm->lookup_egl_image(gdrm->lookup_egl_image_data,
+                                         egl_image);
+   if (bo->resource == NULL) {
+      FREE(bo);
+      return NULL;
+   }
+
+   bo->base.base.gbm = gbm;
+   bo->base.base.width = width;
+   bo->base.base.height = height;
+
+   memset(&whandle, 0, sizeof(whandle));
+   whandle.type = DRM_API_HANDLE_TYPE_KMS;
+   gdrm->screen->resource_get_handle(gdrm->screen, bo->resource, &whandle);
+
+   bo->base.base.handle.u32 = whandle.handle;
+   bo->base.base.pitch      = whandle.stride;
+
+   return &bo->base.base;
+}
+
+static struct gbm_bo *
+gbm_gallium_drm_bo_create(struct gbm_device *gbm,
+                          uint32_t width, uint32_t height,
+                          enum gbm_bo_format format, uint32_t usage)
+{
+   struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
+   struct gbm_gallium_drm_bo *bo;
+   struct pipe_resource templ;
+   struct winsys_handle whandle;
+   enum pipe_format pf;
+
+   bo = CALLOC_STRUCT(gbm_gallium_drm_bo);
+   if (bo == NULL)
+      return NULL;
+
+   bo->base.base.gbm = gbm;
+   bo->base.base.width = width;
+   bo->base.base.height = height;
+
+   pf = gbm_format_to_gallium(format);
+   if (pf == PIPE_FORMAT_NONE)
+      return NULL;
+
+   memset(&templ, 0, sizeof(templ));
+   templ.bind = gbm_usage_to_gallium(usage);
+   templ.format = pf;
+   templ.target = PIPE_TEXTURE_2D;
+   templ.last_level = 0;
+   templ.width0 = width;
+   templ.height0 = height;
+   templ.depth0 = 1;
+   templ.array_size = 1;
+
+   bo->resource = gdrm->screen->resource_create(gdrm->screen, &templ);
+   if (bo->resource == NULL) {
+      FREE(bo);
+      return NULL;
+   }
+
+   memset(&whandle, 0, sizeof(whandle));
+   whandle.type = DRM_API_HANDLE_TYPE_KMS;
+   gdrm->screen->resource_get_handle(gdrm->screen, bo->resource, &whandle);
+
+   bo->base.base.handle.u32 = whandle.handle;
+   bo->base.base.pitch      = whandle.stride;
+
+   return &bo->base.base;
+}
+
+static void
+gbm_gallium_drm_destroy(struct gbm_device *gbm)
+{
+   struct gbm_gallium_drm_device *gdrm = gbm_gallium_drm_device(gbm);
+
+   gdrm->screen->destroy(gdrm->screen);
+
+   FREE(gdrm->base.driver_name);
+
+   FREE(gdrm);
+}
+
+struct gbm_device *
+gbm_gallium_drm_device_create(int fd)
+{
+   struct gbm_gallium_drm_device *gdrm;
+   int ret;
+
+   gdrm = calloc(1, sizeof *gdrm);
+
+   gdrm->base.base.fd = fd;
+   gdrm->base.base.bo_create = gbm_gallium_drm_bo_create;
+   gdrm->base.base.bo_create_from_egl_image =
+      gbm_gallium_drm_bo_create_from_egl_image;
+   gdrm->base.base.bo_destroy = gbm_gallium_drm_bo_destroy;
+   gdrm->base.base.is_format_supported = gbm_gallium_drm_is_format_supported;
+   gdrm->base.base.destroy = gbm_gallium_drm_destroy;
+
+   gdrm->base.type = GBM_DRM_DRIVER_TYPE_GALLIUM;
+   gdrm->base.base.name = "drm";
+
+   ret = gallium_screen_create(gdrm);
+   if (ret) {
+      free(gdrm);
+      return NULL;
+   }
+
+   return &gdrm->base.base;
+}
diff --git a/src/gallium/state_trackers/gbm/gbm_gallium_drmint.h b/src/gallium/state_trackers/gbm/gbm_gallium_drmint.h
new file mode 100644
index 00000000000..6277b8dba2e
--- /dev/null
+++ b/src/gallium/state_trackers/gbm/gbm_gallium_drmint.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Benjamin Franzke <[email protected]>
+ */
+
+#ifndef _GBM_GALLIUM_DRMINT_H_
+#define _GBM_GALLIUM_DRMINT_H_
+
+#include "pipe/p_state.h"
+
+#include "gbmint.h"
+
+#include "common.h"
+#include "common_drm.h"
+
+struct gbm_gallium_drm_device {
+   struct gbm_drm_device base;
+
+   struct pipe_screen *screen;
+   void *driver;
+
+   struct pipe_resource *(*lookup_egl_image)(void *data,
+                                             void *egl_image);
+   void *lookup_egl_image_data;
+
+};
+
+struct gbm_gallium_drm_bo {
+   struct gbm_drm_bo base;
+
+   struct pipe_resource *resource;
+};
+
+static inline struct gbm_gallium_drm_device *
+gbm_gallium_drm_device(struct gbm_device *gbm)
+{
+   return (struct gbm_gallium_drm_device *) gbm;
+}
+
+static inline struct gbm_gallium_drm_bo *
+gbm_gallium_drm_bo(struct gbm_bo *bo)
+{
+   return (struct gbm_gallium_drm_bo *) bo;
+}
+
+struct gbm_device *
+gbm_gallium_drm_device_create(int fd);
+
+int
+gallium_screen_create(struct gbm_gallium_drm_device *gdrm);
+
+#endif