Mesa (master): nouveau: use dri state tracker for dri1
Ben Skeggs
darktama at kemper.freedesktop.org
Thu May 7 23:36:25 UTC 2009
Module: Mesa
Branch: master
Commit: b7f2b7e93609836260ca7eef635776073b8f7069
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b7f2b7e93609836260ca7eef635776073b8f7069
Author: Ben Skeggs <bskeggs at redhat.com>
Date: Fri May 8 09:04:10 2009 +1000
nouveau: use dri state tracker for dri1
---
src/gallium/winsys/drm/nouveau/Makefile | 2 +-
src/gallium/winsys/drm/nouveau/dri2/Makefile | 2 +-
.../winsys/drm/nouveau/{dri => drm}/nouveau_dri.h | 0
.../winsys/drm/nouveau/drm/nouveau_drm_api.c | 86 ++++++++++++++++++++
.../winsys/drm/nouveau/drm/nouveau_drm_api.h | 2 +
.../winsys/drm/nouveau/drm/nouveau_winsys_pipe.h | 2 +
6 files changed, 92 insertions(+), 2 deletions(-)
diff --git a/src/gallium/winsys/drm/nouveau/Makefile b/src/gallium/winsys/drm/nouveau/Makefile
index f8c8135..be4cad6 100644
--- a/src/gallium/winsys/drm/nouveau/Makefile
+++ b/src/gallium/winsys/drm/nouveau/Makefile
@@ -2,7 +2,7 @@
TOP = ../../../../..
include $(TOP)/configs/current
-SUBDIRS = drm dri dri2
+SUBDIRS = drm dri2
default install clean:
@for dir in $(SUBDIRS) ; do \
diff --git a/src/gallium/winsys/drm/nouveau/dri2/Makefile b/src/gallium/winsys/drm/nouveau/dri2/Makefile
index 377a80d..024ab15 100644
--- a/src/gallium/winsys/drm/nouveau/dri2/Makefile
+++ b/src/gallium/winsys/drm/nouveau/dri2/Makefile
@@ -1,7 +1,7 @@
TOP = ../../../../../..
include $(TOP)/configs/current
-LIBNAME = nouveau_dri2.so
+LIBNAME = nouveau_dri.so
PIPE_DRIVERS = \
$(TOP)/src/gallium/state_trackers/dri/libdridrm.a \
diff --git a/src/gallium/winsys/drm/nouveau/dri/nouveau_dri.h b/src/gallium/winsys/drm/nouveau/drm/nouveau_dri.h
similarity index 100%
rename from src/gallium/winsys/drm/nouveau/dri/nouveau_dri.h
rename to src/gallium/winsys/drm/nouveau/drm/nouveau_dri.h
diff --git a/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c b/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
index a558fda..b355a13 100644
--- a/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
+++ b/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
@@ -7,9 +7,68 @@
#include "nouveau_channel.h"
#include "nouveau_bo.h"
+static struct pipe_surface *
+dri_surface_from_handle(struct pipe_screen *screen,
+ unsigned handle,
+ enum pipe_format format,
+ unsigned width,
+ unsigned height,
+ unsigned pitch)
+{
+ struct pipe_surface *surface = NULL;
+ struct pipe_texture *texture = NULL;
+ struct pipe_texture templat;
+ struct pipe_buffer *buf = NULL;
+
+ buf = drm_api_hooks.buffer_from_handle(screen, "front buffer", handle);
+ if (!buf)
+ return NULL;
+
+ memset(&templat, 0, sizeof(templat));
+ templat.tex_usage = PIPE_TEXTURE_USAGE_PRIMARY |
+ NOUVEAU_TEXTURE_USAGE_LINEAR;
+ templat.target = PIPE_TEXTURE_2D;
+ templat.last_level = 0;
+ templat.depth[0] = 1;
+ templat.format = format;
+ templat.width[0] = width;
+ templat.height[0] = height;
+ pf_get_block(templat.format, &templat.block);
+
+ texture = screen->texture_blanket(screen,
+ &templat,
+ &pitch,
+ buf);
+
+ /* we don't need the buffer from this point on */
+ pipe_buffer_reference(&buf, NULL);
+
+ if (!texture)
+ return NULL;
+
+ surface = screen->get_tex_surface(screen, texture, 0, 0, 0,
+ PIPE_BUFFER_USAGE_GPU_READ |
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ /* we don't need the texture from this point on */
+ pipe_texture_reference(&texture, NULL);
+ return surface;
+}
+
+static struct pipe_surface *
+nouveau_dri1_front_surface(struct pipe_context *pipe)
+{
+ return nouveau_screen(pipe->screen)->front;
+}
+
+static struct dri1_api nouveau_dri1_api = {
+ nouveau_dri1_front_surface,
+};
+
static struct pipe_screen *
nouveau_drm_create_screen(int fd, struct drm_create_screen_arg *arg)
{
+ struct dri1_create_screen_arg *dri1 = (void *)arg;
struct pipe_winsys *ws;
struct nouveau_winsys *nvws;
struct nouveau_device *dev = NULL;
@@ -67,6 +126,33 @@ nouveau_drm_create_screen(int fd, struct drm_create_screen_arg *arg)
return NULL;
}
+ if (arg->mode == DRM_CREATE_DRI1) {
+ struct nouveau_pipe_winsys *nvpws = nouveau_pipe_winsys(ws);
+ struct nouveau_dri *nvdri = dri1->ddx_info;
+ enum pipe_format format;
+
+ if (nvdri->bpp == 16)
+ format = PIPE_FORMAT_R5G6B5_UNORM;
+ else
+ format = PIPE_FORMAT_A8R8G8B8_UNORM;
+
+ nvpws->front = dri_surface_from_handle(nvpws->pscreen,
+ nvdri->front_offset,
+ format,
+ nvdri->width,
+ nvdri->height,
+ nvdri->front_pitch *
+ (nvdri->bpp / 8));
+ if (!nvpws->front) {
+ debug_printf("%s: error referencing front buffer\n",
+ __func__);
+ ws->destroy(ws);
+ return NULL;
+ }
+
+ dri1->api = &nouveau_dri1_api;
+ }
+
return nouveau_pipe_winsys(ws)->pscreen;
}
diff --git a/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.h b/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.h
index 2782c83..cc237bf 100644
--- a/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.h
+++ b/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.h
@@ -1,5 +1,7 @@
#ifndef __NOUVEAU_DRM_API_H__
#define __NOUVEAU_DRM_API_H__
#include "state_tracker/drm_api.h"
+#include "state_tracker/dri1_api.h"
+#include "nouveau_dri.h"
#endif
diff --git a/src/gallium/winsys/drm/nouveau/drm/nouveau_winsys_pipe.h b/src/gallium/winsys/drm/nouveau/drm/nouveau_winsys_pipe.h
index 10e1e26..ec10f1e 100644
--- a/src/gallium/winsys/drm/nouveau/drm/nouveau_winsys_pipe.h
+++ b/src/gallium/winsys/drm/nouveau/drm/nouveau_winsys_pipe.h
@@ -29,6 +29,8 @@ struct nouveau_pipe_winsys {
unsigned nr_pctx;
struct pipe_context **pctx;
+
+ struct pipe_surface *front;
};
static INLINE struct nouveau_pipe_winsys *
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