st/xa: Initial import of the xa state-tracker and the xa-vmwgfx target.

See the file src/gallium/state_trackers/xa/README for more info.

Signed-off-by: Thomas Hellstrom <[email protected]>

1 files changed, 420 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/xa/xa_tracker.c b/src/gallium/state_trackers/xa/xa_tracker.c
new file mode 100644
index 00000000000..12ee29c4647
--- /dev/null
+++ b/src/gallium/state_trackers/xa/xa_tracker.c
@@ -0,0 +1,420 @@
+/**********************************************************
+ * Copyright 2009-2011 VMware, Inc. All rights reserved.
+ *
+ * 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 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:
+ * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ */
+
+#include "xa_tracker.h"
+#include "xa_priv.h"
+#include "pipe/p_state.h"
+#include "pipe/p_format.h"
+#include "state_tracker/drm_driver.h"
+#include "util/u_inlines.h"
+
+/*
+ * format_map [xa_surface_type][first..last in list].
+ * Needs to be updated when enum xa_formats is updated.
+ */
+
+static const enum xa_formats preferred_a[] = { xa_format_a8 };
+
+static const enum xa_formats preferred_argb[] =
+    { xa_format_a8r8g8b8, xa_format_x8r8g8b8, xa_format_r5g6b5,
+    xa_format_x1r5g5b5
+};
+static const enum xa_formats preferred_z[] =
+    { xa_format_z32, xa_format_z24, xa_format_z16 };
+static const enum xa_formats preferred_sz[] =
+    { xa_format_x8z24, xa_format_s8z24 };
+static const enum xa_formats preferred_zs[] =
+    { xa_format_z24x8, xa_format_z24s8 };
+static const enum xa_formats preferred_yuv[] = { xa_format_yuv8 };
+
+static const enum xa_formats *preferred[] =
+    { NULL, preferred_a, preferred_argb, NULL, NULL,
+    preferred_z, preferred_zs, preferred_sz, preferred_yuv
+};
+
+static const unsigned int num_preferred[] = { 0,
+    sizeof(preferred_a) / sizeof(enum xa_formats),
+    sizeof(preferred_argb) / sizeof(enum xa_formats),
+    0,
+    0,
+    sizeof(preferred_z) / sizeof(enum xa_formats),
+    sizeof(preferred_zs) / sizeof(enum xa_formats),
+    sizeof(preferred_sz) / sizeof(enum xa_formats),
+    sizeof(preferred_yuv) / sizeof(enum xa_formats)
+};
+
+static const unsigned int stype_bind[XA_LAST_SURFACE_TYPE] = { 0,
+    PIPE_BIND_SAMPLER_VIEW,
+    PIPE_BIND_SAMPLER_VIEW,
+    PIPE_BIND_SAMPLER_VIEW,
+    PIPE_BIND_SAMPLER_VIEW,
+    PIPE_BIND_DEPTH_STENCIL,
+    PIPE_BIND_DEPTH_STENCIL,
+    PIPE_BIND_DEPTH_STENCIL,
+    PIPE_BIND_SAMPLER_VIEW
+};
+
+static struct xa_format_descriptor
+xa_get_pipe_format(enum xa_formats xa_format)
+{
+    struct xa_format_descriptor fdesc;
+
+    fdesc.xa_format = xa_format;
+
+    switch (xa_format) {
+    case xa_format_a8r8g8b8:
+	fdesc.format = PIPE_FORMAT_B8G8R8A8_UNORM;
+	break;
+    case xa_format_x8r8g8b8:
+	fdesc.format = PIPE_FORMAT_B8G8R8X8_UNORM;
+	break;
+    case xa_format_r5g6b5:
+	fdesc.format = PIPE_FORMAT_B5G6R5_UNORM;
+	break;
+    case xa_format_x1r5g5b5:
+	fdesc.format = PIPE_FORMAT_B5G5R5A1_UNORM;
+	break;
+    case xa_format_a8:
+	fdesc.format = PIPE_FORMAT_L8_UNORM;
+	break;
+    case xa_format_z24:
+	fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
+	break;
+    case xa_format_z16:
+	fdesc.format = PIPE_FORMAT_Z16_UNORM;
+	break;
+    case xa_format_z32:
+	fdesc.format = PIPE_FORMAT_Z32_UNORM;
+	break;
+    case xa_format_x8z24:
+	fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
+	break;
+    case xa_format_z24x8:
+	fdesc.format = PIPE_FORMAT_X8Z24_UNORM;
+	break;
+    case xa_format_s8z24:
+	fdesc.format = PIPE_FORMAT_Z24_UNORM_S8_USCALED;
+	break;
+    case xa_format_z24s8:
+	fdesc.format = PIPE_FORMAT_S8_USCALED_Z24_UNORM;
+	break;
+    case xa_format_yuv8:
+	fdesc.format = PIPE_FORMAT_L8_UNORM;
+	break;
+    default:
+	fdesc.xa_format = xa_format_unknown;
+	break;
+    }
+    return fdesc;
+}
+
+struct xa_tracker *
+xa_tracker_create(int drm_fd)
+{
+    struct xa_tracker *xa = calloc(1, sizeof(struct xa_tracker));
+    enum xa_surface_type stype;
+    unsigned int num_formats;
+
+    if (!xa)
+	return NULL;
+
+    xa->screen = driver_descriptor.create_screen(drm_fd);
+    if (!xa->screen)
+	goto out_no_screen;
+
+    xa->default_ctx = xa_context_create(xa);
+    if (!xa->default_ctx)
+	goto out_no_pipe;
+
+    num_formats = 0;
+    for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype)
+	num_formats += num_preferred[stype];
+
+    num_formats += 1;
+    xa->supported_formats = calloc(num_formats, sizeof(*xa->supported_formats));
+    if (!xa->supported_formats)
+	goto out_sf_alloc_fail;
+
+    xa->supported_formats[0] = xa_format_unknown;
+    num_formats = 1;
+    memset(xa->format_map, 0, sizeof(xa->format_map));
+
+    for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype) {
+	unsigned int bind = stype_bind[stype];
+	enum xa_formats xa_format;
+	int i;
+
+	for (i = 0; i < num_preferred[stype]; ++i) {
+	    xa_format = preferred[stype][i];
+
+	    struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
+
+	    if (xa->screen->is_format_supported(xa->screen, fdesc.format,
+						PIPE_TEXTURE_2D, 0, bind)) {
+		if (xa->format_map[stype][0] == 0)
+		    xa->format_map[stype][0] = num_formats;
+		xa->format_map[stype][1] = num_formats;
+		xa->supported_formats[num_formats++] = xa_format;
+	    }
+	}
+    }
+    return xa;
+
+ out_sf_alloc_fail:
+    xa_context_destroy(xa->default_ctx);
+ out_no_pipe:
+    xa->screen->destroy(xa->screen);
+ out_no_screen:
+    free(xa);
+    return NULL;
+}
+
+void
+xa_tracker_destroy(struct xa_tracker *xa)
+{
+    free(xa->supported_formats);
+    xa_context_destroy(xa->default_ctx);
+    xa->screen->destroy(xa->screen);
+    free(xa);
+}
+
+static int
+xa_flags_compat(unsigned int old_flags, unsigned int new_flags)
+{
+    unsigned int flag_diff = (old_flags ^ new_flags);
+
+    if (flag_diff == 0)
+	return 1;
+
+    if (flag_diff & XA_FLAG_SHARED)
+	return 0;
+    /*
+     * Don't recreate if we're dropping the render target flag.
+     */
+    if (flag_diff & XA_FLAG_RENDER_TARGET)
+	return ((new_flags & XA_FLAG_RENDER_TARGET) == 0);
+
+    /*
+     * Always recreate for unknown / unimplemented flags.
+     */
+    return 0;
+}
+
+static struct xa_format_descriptor
+xa_get_format_stype_depth(struct xa_tracker *xa,
+			  enum xa_surface_type stype, unsigned int depth)
+{
+    unsigned int i;
+    struct xa_format_descriptor fdesc;
+    int found = 0;
+
+    for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
+	fdesc = xa_get_pipe_format(xa->supported_formats[i]);
+	if (fdesc.xa_format != xa_format_unknown &&
+	    xa_format_depth(fdesc.xa_format) == depth) {
+	    found = 1;
+	    break;
+	}
+    }
+
+    if (!found)
+	fdesc.xa_format = xa_format_unknown;
+
+    return fdesc;
+}
+
+struct xa_surface *
+xa_surface_create(struct xa_tracker *xa,
+		  int width,
+		  int height,
+		  int depth,
+		  enum xa_surface_type stype,
+		  enum xa_formats xa_format, unsigned int flags)
+{
+    struct pipe_resource *template;
+    struct xa_surface *srf;
+    struct xa_format_descriptor fdesc;
+
+    if (xa_format == xa_format_unknown)
+	fdesc = xa_get_format_stype_depth(xa, stype, depth);
+    else
+	fdesc = xa_get_pipe_format(xa_format);
+
+    if (fdesc.xa_format == xa_format_unknown)
+	return NULL;
+
+    srf = calloc(1, sizeof(*srf));
+    if (!srf)
+	return NULL;
+
+    template = &srf->template;
+    template->format = fdesc.format;
+    template->target = PIPE_TEXTURE_2D;
+    template->width0 = width;
+    template->height0 = height;
+    template->depth0 = 1;
+    template->array_size = 1;
+    template->last_level = 0;
+    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
+
+    if (flags & XA_FLAG_SHARED)
+	template->bind |= PIPE_BIND_SHARED;
+    if (flags & XA_FLAG_RENDER_TARGET)
+	template->bind |= PIPE_BIND_RENDER_TARGET;
+
+    srf->tex = xa->screen->resource_create(xa->screen, template);
+    if (!srf->tex)
+	goto out_no_tex;
+
+    srf->srf = NULL;
+    srf->xa = xa;
+    srf->flags = flags;
+    srf->fdesc = fdesc;
+
+    return srf;
+ out_no_tex:
+    free(srf);
+    return NULL;
+}
+
+int
+xa_surface_redefine(struct xa_surface *srf,
+		    int width,
+		    int height,
+		    int depth,
+		    enum xa_surface_type stype,
+		    enum xa_formats xa_format,
+		    unsigned int add_flags,
+		    unsigned int remove_flags, int copy_contents)
+{
+    struct pipe_resource *template = &srf->template;
+    struct pipe_resource *texture;
+    struct pipe_box src_box;
+    struct xa_tracker *xa = srf->xa;
+    int save_width;
+    int save_height;
+    unsigned int new_flags = (srf->flags | add_flags) & ~(remove_flags);
+    struct xa_format_descriptor fdesc;
+
+    if (xa_format == xa_format_unknown)
+	fdesc = xa_get_format_stype_depth(xa, stype, depth);
+    else
+	fdesc = xa_get_pipe_format(xa_format);
+
+    if (width == template->width0 && height == template->height0 &&
+	template->format == fdesc.format &&
+	xa_flags_compat(srf->flags, new_flags))
+	return XA_ERR_NONE;
+
+    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
+    if (new_flags & XA_FLAG_SHARED)
+	template->bind |= PIPE_BIND_SHARED;
+    if (new_flags & XA_FLAG_RENDER_TARGET)
+	template->bind |= PIPE_BIND_RENDER_TARGET;
+
+    if (copy_contents) {
+	if (!xa_format_type_is_color(fdesc.xa_format) ||
+	    xa_format_type(fdesc.xa_format) == xa_type_a)
+	    return -XA_ERR_INVAL;
+
+	if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
+					     PIPE_TEXTURE_2D, 0,
+					     template->bind |
+					     PIPE_BIND_RENDER_TARGET))
+	    return -XA_ERR_INVAL;
+    }
+
+    save_width = template->width0;
+    save_height = template->height0;
+
+    template->width0 = width;
+    template->height0 = height;
+
+    texture = xa->screen->resource_create(xa->screen, template);
+    if (!texture) {
+	template->width0 = save_width;
+	template->height0 = save_height;
+	return -XA_ERR_NORES;
+    }
+
+    pipe_surface_reference(&srf->srf, NULL);
+
+    if (copy_contents) {
+	struct pipe_context *pipe = xa->default_ctx->pipe;
+
+	u_box_origin_2d(xa_min(save_width, template->width0),
+			xa_min(save_height, template->height0), &src_box);
+	pipe->resource_copy_region(pipe, texture,
+				   0, 0, 0, 0, srf->tex, 0, &src_box);
+	pipe->flush(pipe, &xa->default_ctx->last_fence);
+    }
+
+    pipe_resource_reference(&srf->tex, texture);
+    pipe_resource_reference(&texture, NULL);
+    srf->fdesc = fdesc;
+    srf->flags = new_flags;
+
+    return XA_ERR_NONE;
+}
+
+void
+xa_surface_destroy(struct xa_surface *srf)
+{
+    pipe_surface_reference(&srf->srf, NULL);
+    pipe_resource_reference(&srf->tex, NULL);
+    free(srf);
+}
+
+extern void
+xa_tracker_version(int *major, int *minor, int *patch)
+{
+    *major = XA_TRACKER_VERSION_MAJOR;
+    *minor = XA_TRACKER_VERSION_MINOR;
+    *patch = XA_TRACKER_VERSION_PATCH;
+}
+
+extern int
+xa_surface_handle(struct xa_surface *srf,
+		  uint32_t * handle, unsigned int *stride)
+{
+    struct winsys_handle whandle;
+
+    struct pipe_screen *screen = srf->xa->screen;
+    boolean res;
+
+    memset(&whandle, 0, sizeof(whandle));
+    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+    res = screen->resource_get_handle(screen, srf->tex, &whandle);
+    if (!res)
+	return -XA_ERR_INVAL;
+
+    *handle = whandle.handle;
+    *stride = whandle.stride;
+
+    return XA_ERR_NONE;
+}