1 files changed, 134 insertions, 65 deletions

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 a558fda140..091cbbcfed 100644
--- a/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
+++ b/src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
@@ -1,20 +1,70 @@
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
 #include "util/u_memory.h"
 
 #include "nouveau_drm_api.h"
-#include "nouveau_winsys_pipe.h"
 
 #include "nouveau_drmif.h"
 #include "nouveau_channel.h"
 #include "nouveau_bo.h"
 
+#include "nouveau/nouveau_winsys.h"
+#include "nouveau/nouveau_screen.h"
+
+static struct pipe_surface *
+dri_surface_from_handle(struct drm_api *api, struct pipe_screen *pscreen,
+                        unsigned handle, enum pipe_format format,
+                        unsigned width, unsigned height, unsigned pitch)
+{
+	struct pipe_surface *ps = NULL;
+	struct pipe_texture *pt = NULL;
+	struct pipe_texture tmpl;
+
+	memset(&tmpl, 0, sizeof(tmpl));
+	tmpl.tex_usage = PIPE_TEXTURE_USAGE_PRIMARY |
+			 NOUVEAU_TEXTURE_USAGE_LINEAR;
+	tmpl.target = PIPE_TEXTURE_2D;
+	tmpl.last_level = 0;
+	tmpl.depth[0] = 1;
+	tmpl.format = format;
+	tmpl.width[0] = width;
+	tmpl.height[0] = height;
+	pf_get_block(tmpl.format, &tmpl.block);
+
+	pt = api->texture_from_shared_handle(api, pscreen, &tmpl,
+					     "front buffer", pitch, handle);
+	if (!pt)
+		return NULL;
+
+	ps = pscreen->get_tex_surface(pscreen, pt, 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(&pt, NULL);
+	return ps;
+}
+
+static struct pipe_surface *
+nouveau_dri1_front_surface(struct pipe_context *pipe)
+{
+	return nouveau_winsys_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)
+nouveau_drm_create_screen(struct drm_api *api, int fd,
+			  struct drm_create_screen_arg *arg)
 {
-	struct pipe_winsys *ws;
+	struct dri1_create_screen_arg *dri1 = (void *)arg;
 	struct nouveau_winsys *nvws;
+	struct pipe_winsys *ws;
 	struct nouveau_device *dev = NULL;
 	struct pipe_screen *(*init)(struct pipe_winsys *,
-				    struct nouveau_winsys *);
+				    struct nouveau_device *);
 	int ret;
 
 	ret = nouveau_device_open_existing(&dev, 0, fd, 0);
@@ -49,33 +99,53 @@ nouveau_drm_create_screen(int fd, struct drm_create_screen_arg *arg)
 		return NULL;
 	}
 
-	ws = nouveau_pipe_winsys_new(dev);
-	if (!ws) {
+	nvws = CALLOC_STRUCT(nouveau_winsys);
+	if (!nvws) {
 		nouveau_device_close(&dev);
 		return NULL;
 	}
+	ws = &nvws->base;
 
-	nvws = nouveau_winsys_new(ws);
-	if (!nvws) {
+	nvws->pscreen = init(ws, dev);
+	if (!nvws->pscreen) {
 		ws->destroy(ws);
 		return NULL;
 	}
 
-	nouveau_pipe_winsys(ws)->pscreen = init(ws, nvws);
-	if (!nouveau_pipe_winsys(ws)->pscreen) {
-		ws->destroy(ws);
-		return NULL;
+	if (arg->mode == DRM_CREATE_DRI1) {
+		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;
+
+		nvws->front = dri_surface_from_handle(api, nvws->pscreen,
+						      nvdri->front_offset,
+						      format, nvdri->width,
+						      nvdri->height,
+						      nvdri->front_pitch *
+						      (nvdri->bpp / 8));
+		if (!nvws->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;
+	return nvws->pscreen;
 }
 
 static struct pipe_context *
-nouveau_drm_create_context(struct pipe_screen *pscreen)
+nouveau_drm_create_context(struct drm_api *api, struct pipe_screen *pscreen)
 {
-	struct nouveau_pipe_winsys *nvpws = nouveau_screen(pscreen);
+	struct nouveau_winsys *nvws = nouveau_winsys_screen(pscreen);
 	struct pipe_context *(*init)(struct pipe_screen *, unsigned);
-	unsigned chipset = nvpws->channel->device->chipset;
+	unsigned chipset = nouveau_screen(pscreen)->device->chipset;
 	int i;
 
 	switch (chipset & 0xf0) {
@@ -106,89 +176,88 @@ nouveau_drm_create_context(struct pipe_screen *pscreen)
 	}
 
 	/* Find a free slot for a pipe context, allocate a new one if needed */
-	for (i = 0; i < nvpws->nr_pctx; i++) {
-		if (nvpws->pctx[i] == NULL)
+	for (i = 0; i < nvws->nr_pctx; i++) {
+		if (nvws->pctx[i] == NULL)
 			break;
 	}
 
-	if (i == nvpws->nr_pctx) {
-		nvpws->nr_pctx++;
-		nvpws->pctx = realloc(nvpws->pctx,
-				      sizeof(*nvpws->pctx) * nvpws->nr_pctx);
+	if (i == nvws->nr_pctx) {
+		nvws->nr_pctx++;
+		nvws->pctx = realloc(nvws->pctx,
+				      sizeof(*nvws->pctx) * nvws->nr_pctx);
 	}
 
-	nvpws->pctx[i] = init(pscreen, i);
-	return nvpws->pctx[i];
-}
-
-static boolean
-nouveau_drm_pb_from_pt(struct pipe_texture *pt, struct pipe_buffer **ppb,
-		       unsigned *stride)
-{
-	return false;
+	nvws->pctx[i] = init(pscreen, i);
+	return nvws->pctx[i];
 }
 
-static struct pipe_buffer *
-nouveau_drm_pb_from_handle(struct pipe_screen *pscreen, const char *name,
-			   unsigned handle)
+static struct pipe_texture *
+nouveau_drm_pt_from_name(struct drm_api *api, struct pipe_screen *pscreen,
+			 struct pipe_texture *templ, const char *name,
+			 unsigned stride, unsigned handle)
 {
-	struct nouveau_pipe_winsys *nvpws = nouveau_screen(pscreen);
-	struct nouveau_device *dev = nvpws->channel->device;
-	struct nouveau_pipe_buffer *nvpb;
+	struct nouveau_device *dev = nouveau_screen(pscreen)->device;
+	struct pipe_buffer *pb;
 	int ret;
 
-	nvpb = CALLOC_STRUCT(nouveau_pipe_buffer);
-	if (!nvpb)
+	pb = CALLOC(1, sizeof(struct pipe_buffer) + sizeof(struct nouveau_bo*));
+	if (!pb)
 		return NULL;
 
-	ret = nouveau_bo_handle_ref(dev, handle, &nvpb->bo);
+	ret = nouveau_bo_handle_ref(dev, handle, (struct nouveau_bo**)(pb+1));
 	if (ret) {
 		debug_printf("%s: ref name 0x%08x failed with %d\n",
 			     __func__, handle, ret);
-		FREE(nvpb);
+		FREE(pb);
 		return NULL;
 	}
 
-	pipe_reference_init(&nvpb->base.reference, 1);
-	nvpb->base.screen = pscreen;
-	nvpb->base.alignment = 0;
-	nvpb->base.usage = PIPE_BUFFER_USAGE_GPU_READ_WRITE |
-			   PIPE_BUFFER_USAGE_CPU_READ_WRITE;
-	nvpb->base.size = nvpb->bo->size;
-	return &nvpb->base;
+	pipe_reference_init(&pb->reference, 1);
+	pb->screen = pscreen;
+	pb->alignment = 0;
+	pb->usage = PIPE_BUFFER_USAGE_GPU_READ_WRITE |
+		    PIPE_BUFFER_USAGE_CPU_READ_WRITE;
+	pb->size = nouveau_bo(pb)->size;
+	return pscreen->texture_blanket(pscreen, templ, &stride, pb);
 }
 
 static boolean
-nouveau_drm_handle_from_pb(struct pipe_screen *pscreen, struct pipe_buffer *pb,
-			   unsigned *handle)
+nouveau_drm_name_from_pt(struct drm_api *api, struct pipe_screen *pscreen,
+			 struct pipe_texture *pt, unsigned *stride,
+			 unsigned *handle)
 {
-	struct nouveau_pipe_buffer *nvpb = nouveau_pipe_buffer(pb);
+	struct nouveau_miptree *mt = nouveau_miptree(pt);
 
-	if (!nvpb)
-		return FALSE;
+	if (!mt || !mt->bo)
+		return false;
 
-	*handle = nvpb->bo->handle;
-	return TRUE;
+	return nouveau_bo_handle_get(mt->bo, handle) == 0;
 }
 
 static boolean
-nouveau_drm_name_from_pb(struct pipe_screen *pscreen, struct pipe_buffer *pb,
-			 unsigned *handle)
+nouveau_drm_handle_from_pt(struct drm_api *api, struct pipe_screen *pscreen,
+			   struct pipe_texture *pt, unsigned *stride,
+			   unsigned *handle)
 {
-	struct nouveau_pipe_buffer *nvpb = nouveau_pipe_buffer(pb);
+	struct nouveau_miptree *mt = nouveau_miptree(pt);
 
-	if (!nvpb)
-		return FALSE;
+	if (!mt || !mt->bo)
+		return false;
 
-	return nouveau_bo_handle_get(nvpb->bo, handle) == 0;
+	*handle = mt->bo->handle;
+	return true;
 }
 
 struct drm_api drm_api_hooks = {
 	.create_screen = nouveau_drm_create_screen,
 	.create_context = nouveau_drm_create_context,
-	.buffer_from_texture = nouveau_drm_pb_from_pt,
-	.buffer_from_handle = nouveau_drm_pb_from_handle,
-	.handle_from_buffer = nouveau_drm_handle_from_pb,
-	.global_handle_from_buffer = nouveau_drm_name_from_pb,
+	.texture_from_shared_handle = nouveau_drm_pt_from_name,
+	.shared_handle_from_texture = nouveau_drm_name_from_pt,
+	.local_handle_from_texture = nouveau_drm_handle_from_pt,
 };
 
+struct drm_api *
+drm_api_create() {
+	return &drm_api_hooks;
+}
+