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authorBen Skeggs <[email protected]>2008-02-29 13:24:31 +1100
committerBen Skeggs <[email protected]>2008-02-29 13:24:31 +1100
commit8c77e6f674206ef34ab15026b08e495209dcd4ea (patch)
tree7d21d99eee6970b340bc7a3afedeadfc99dd5745 /src/gallium/drivers/softpipe/sp_screen.c
parent68ef52886263690632552ae187a4673945c2ab74 (diff)
parentebe3b34ad225e320a09bb4069ce4d24808386327 (diff)
Merge branch 'upstream-gallium-0.1' into nouveau-gallium-0.1
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_screen.c')
-rw-r--r--src/gallium/drivers/softpipe/sp_screen.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
new file mode 100644
index 00000000000..1850a1ced33
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -0,0 +1,165 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#include "pipe/p_util.h"
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+
+#include "sp_texture.h"
+#include "sp_winsys.h"
+
+
+static const char *
+softpipe_get_vendor(struct pipe_screen *screen)
+{
+ return "Tungsten Graphics, Inc.";
+}
+
+
+static const char *
+softpipe_get_name(struct pipe_screen *screen)
+{
+ return "softpipe";
+}
+
+
+static int
+softpipe_get_param(struct pipe_screen *screen, int param)
+{
+ switch (param) {
+ case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
+ return 8;
+ case PIPE_CAP_NPOT_TEXTURES:
+ return 1;
+ case PIPE_CAP_TWO_SIDED_STENCIL:
+ return 1;
+ case PIPE_CAP_GLSL:
+ return 1;
+ case PIPE_CAP_S3TC:
+ return 0;
+ case PIPE_CAP_ANISOTROPIC_FILTER:
+ return 0;
+ case PIPE_CAP_POINT_SPRITE:
+ return 1;
+ case PIPE_CAP_MAX_RENDER_TARGETS:
+ return 1;
+ case PIPE_CAP_OCCLUSION_QUERY:
+ return 1;
+ case PIPE_CAP_TEXTURE_SHADOW_MAP:
+ return 1;
+ case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+ return 12; /* max 2Kx2K */
+ case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+ return 8; /* max 128x128x128 */
+ case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+ return 12; /* max 2Kx2K */
+ default:
+ return 0;
+ }
+}
+
+
+static float
+softpipe_get_paramf(struct pipe_screen *screen, int param)
+{
+ switch (param) {
+ case PIPE_CAP_MAX_LINE_WIDTH:
+ /* fall-through */
+ case PIPE_CAP_MAX_LINE_WIDTH_AA:
+ return 255.0; /* arbitrary */
+ case PIPE_CAP_MAX_POINT_WIDTH:
+ /* fall-through */
+ case PIPE_CAP_MAX_POINT_WIDTH_AA:
+ return 255.0; /* arbitrary */
+ case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
+ return 0.0;
+ case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
+ return 16.0; /* arbitrary */
+ default:
+ return 0;
+ }
+}
+
+
+/**
+ * Query format support for creating a texture, drawing surface, etc.
+ * \param format the format to test
+ * \param type one of PIPE_TEXTURE, PIPE_SURFACE
+ */
+static boolean
+softpipe_is_format_supported( struct pipe_screen *screen,
+ enum pipe_format format, uint type )
+{
+ switch (type) {
+ case PIPE_TEXTURE:
+ /* softpipe supports all texture formats */
+ return TRUE;
+ case PIPE_SURFACE:
+ /* softpipe supports all (off-screen) surface formats */
+ return TRUE;
+ default:
+ assert(0);
+ return FALSE;
+ }
+}
+
+
+static void
+softpipe_destroy_screen( struct pipe_screen *screen )
+{
+ FREE(screen);
+}
+
+
+/**
+ * Create a new pipe_screen object
+ * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
+ */
+struct pipe_screen *
+softpipe_create_screen(struct pipe_winsys *winsys)
+{
+ struct pipe_screen *screen = CALLOC_STRUCT(pipe_screen);
+
+ if (!screen)
+ return NULL;
+
+ screen->winsys = winsys;
+
+ screen->destroy = softpipe_destroy_screen;
+
+ screen->get_name = softpipe_get_name;
+ screen->get_vendor = softpipe_get_vendor;
+ screen->get_param = softpipe_get_param;
+ screen->get_paramf = softpipe_get_paramf;
+ screen->is_format_supported = softpipe_is_format_supported;
+
+ softpipe_init_screen_texture_funcs(screen);
+
+ return screen;
+}