Mesa (master): st/egl: Add helper functions for use by backends.
Chia-I Wu
olv at kemper.freedesktop.org
Mon May 31 09:04:16 UTC 2010
Module: Mesa
Branch: master
Commit: e1e0307c911f962cfb529c6e16b67ba66f08f6fe
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e1e0307c911f962cfb529c6e16b67ba66f08f6fe
Author: Chia-I Wu <olv at lunarg.com>
Date: Mon May 31 15:26:46 2010 +0800
st/egl: Add helper functions for use by backends.
There is only resource_surface for now. It helps manage the resources
of a software-based native surface such as XImage or GDI.
---
src/gallium/state_trackers/egl/SConscript | 1 +
.../state_trackers/egl/common/native_helper.c | 235 ++++++++++++++++++++
.../state_trackers/egl/common/native_helper.h | 70 ++++++
3 files changed, 306 insertions(+), 0 deletions(-)
diff --git a/src/gallium/state_trackers/egl/SConscript b/src/gallium/state_trackers/egl/SConscript
index 855bc5b..c4d01d6 100644
--- a/src/gallium/state_trackers/egl/SConscript
+++ b/src/gallium/state_trackers/egl/SConscript
@@ -18,6 +18,7 @@ if 'egl' in env['statetrackers']:
'common/egl_g3d_api.c',
'common/egl_g3d_image.c',
'common/egl_g3d_st.c',
+ 'common/native_helper.c',
]
gdi_sources = common_sources + [
diff --git a/src/gallium/state_trackers/egl/common/native_helper.c b/src/gallium/state_trackers/egl/common/native_helper.c
new file mode 100644
index 0000000..7832b2b
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/native_helper.c
@@ -0,0 +1,235 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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:
+ * Chia-I Wu <olv at lunarg.com>
+ */
+
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+#include "native_helper.h"
+
+struct resource_surface {
+ struct pipe_screen *screen;
+ enum pipe_format format;
+ uint bind;
+
+ struct pipe_resource *resources[NUM_NATIVE_ATTACHMENTS];
+ struct pipe_surface *present_surfaces[NUM_NATIVE_ATTACHMENTS];
+ uint resource_mask;
+ uint width, height;
+};
+
+struct resource_surface *
+resource_surface_create(struct pipe_screen *screen,
+ enum pipe_format format, uint bind)
+{
+ struct resource_surface *rsurf = CALLOC_STRUCT(resource_surface);
+
+ if (rsurf) {
+ rsurf->screen = screen;
+ rsurf->format = format;
+ rsurf->bind = bind;
+ }
+
+ return rsurf;
+}
+
+static void
+resource_surface_free_resources(struct resource_surface *rsurf)
+{
+ if (rsurf->resource_mask) {
+ int i;
+
+ for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+ if (rsurf->present_surfaces[i])
+ pipe_surface_reference(&rsurf->present_surfaces[i], NULL);
+ if (rsurf->resources[i])
+ pipe_resource_reference(&rsurf->resources[i], NULL);
+ }
+ rsurf->resource_mask = 0x0;
+ }
+}
+
+void
+resource_surface_destroy(struct resource_surface *rsurf)
+{
+ resource_surface_free_resources(rsurf);
+ FREE(rsurf);
+}
+
+boolean
+resource_surface_set_size(struct resource_surface *rsurf,
+ uint width, uint height)
+{
+ boolean changed = FALSE;
+
+ if (rsurf->width != width || rsurf->height != height) {
+ resource_surface_free_resources(rsurf);
+ rsurf->width = width;
+ rsurf->height = height;
+ changed = TRUE;
+ }
+
+ return changed;
+}
+
+void
+resource_surface_get_size(struct resource_surface *rsurf,
+ uint *width, uint *height)
+{
+ if (width)
+ *width = rsurf->width;
+ if (height)
+ *height = rsurf->height;
+}
+
+boolean
+resource_surface_add_resources(struct resource_surface *rsurf,
+ uint resource_mask)
+{
+ struct pipe_resource templ;
+ int i;
+
+ resource_mask &= ~rsurf->resource_mask;
+ if (!resource_mask)
+ return TRUE;
+
+ if (!rsurf->width || !rsurf->height)
+ return FALSE;
+
+ memset(&templ, 0, sizeof(templ));
+ templ.target = PIPE_TEXTURE_2D;
+ templ.format = rsurf->format;
+ templ.bind = rsurf->bind;
+ templ.width0 = rsurf->width;
+ templ.height0 = rsurf->height;
+ templ.depth0 = 1;
+
+ for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+ if (resource_mask & (1 <<i)) {
+ assert(!rsurf->resources[i]);
+
+ rsurf->resources[i] =
+ rsurf->screen->resource_create(rsurf->screen, &templ);
+ if (rsurf->resources[i])
+ rsurf->resource_mask |= 1 << i;
+ }
+ }
+
+ return ((rsurf->resource_mask & resource_mask) == resource_mask);
+}
+
+
+void
+resource_surface_get_resources(struct resource_surface *rsurf,
+ struct pipe_resource **resources,
+ uint resource_mask)
+{
+ int i;
+
+ for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
+ if (resource_mask & (1 << i)) {
+ resources[i] = NULL;
+ pipe_resource_reference(&resources[i], rsurf->resources[i]);
+ }
+ }
+}
+
+struct pipe_resource *
+resource_surface_get_single_resource(struct resource_surface *rsurf,
+ enum native_attachment which)
+{
+ struct pipe_resource *pres = NULL;
+ pipe_resource_reference(&pres, rsurf->resources[which]);
+ return pres;
+}
+
+static INLINE void
+pointer_swap(const void **p1, const void **p2)
+{
+ const void *tmp = *p1;
+ *p1 = *p2;
+ *p2 = tmp;
+}
+
+void
+resource_surface_swap_buffers(struct resource_surface *rsurf,
+ enum native_attachment buf1,
+ enum native_attachment buf2,
+ boolean only_if_exist)
+{
+ const uint buf1_bit = 1 << buf1;
+ const uint buf2_bit = 1 << buf2;
+ uint mask;
+
+ if (only_if_exist && !(rsurf->resources[buf1] && rsurf->resources[buf2]))
+ return;
+
+ pointer_swap((const void **) &rsurf->resources[buf1],
+ (const void **) &rsurf->resources[buf2]);
+ pointer_swap((const void **) &rsurf->present_surfaces[buf1],
+ (const void **) &rsurf->present_surfaces[buf2]);
+
+ /* swap mask bits */
+ mask = rsurf->resource_mask & ~(buf1_bit | buf2_bit);
+ if (rsurf->resource_mask & buf1_bit)
+ mask |= buf2_bit;
+ if (rsurf->resource_mask & buf2_bit)
+ mask |= buf1_bit;
+
+ rsurf->resource_mask = mask;
+}
+
+boolean
+resource_surface_present(struct resource_surface *rsurf,
+ enum native_attachment which,
+ void *winsys_drawable_handle)
+{
+ struct pipe_resource *pres = rsurf->resources[which];
+ struct pipe_surface *psurf = rsurf->present_surfaces[which];
+
+ if (!pres)
+ return TRUE;
+
+ if (!psurf) {
+ psurf = rsurf->screen->get_tex_surface(rsurf->screen,
+ pres, 0, 0, 0, PIPE_BIND_DISPLAY_TARGET);
+ if (!psurf)
+ return FALSE;
+
+ rsurf->present_surfaces[which] = psurf;
+ }
+
+ assert(psurf->texture == pres);
+
+ rsurf->screen->flush_frontbuffer(rsurf->screen,
+ psurf, winsys_drawable_handle);
+
+ return TRUE;
+}
diff --git a/src/gallium/state_trackers/egl/common/native_helper.h b/src/gallium/state_trackers/egl/common/native_helper.h
new file mode 100644
index 0000000..62956d5
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/native_helper.h
@@ -0,0 +1,70 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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:
+ * Chia-I Wu <olv at lunarg.com>
+ */
+
+#include "native.h"
+
+struct resource_surface;
+
+struct resource_surface *
+resource_surface_create(struct pipe_screen *screen,
+ enum pipe_format format, uint bind);
+
+void
+resource_surface_destroy(struct resource_surface *rsurf);
+
+boolean
+resource_surface_set_size(struct resource_surface *rsurf,
+ uint width, uint height);
+
+void
+resource_surface_get_size(struct resource_surface *rsurf,
+ uint *width, uint *height);
+
+boolean
+resource_surface_add_resources(struct resource_surface *rsurf,
+ uint resource_mask);
+
+void
+resource_surface_get_resources(struct resource_surface *rsurf,
+ struct pipe_resource **resources,
+ uint resource_mask);
+
+struct pipe_resource *
+resource_surface_get_single_resource(struct resource_surface *rsurf,
+ enum native_attachment which);
+
+void
+resource_surface_swap_buffers(struct resource_surface *rsurf,
+ enum native_attachment buf1,
+ enum native_attachment buf2,
+ boolean only_if_exist);
+
+boolean
+resource_surface_present(struct resource_surface *rsurf,
+ enum native_attachment which,
+ void *winsys_drawable_handle);
More information about the mesa-commit
mailing list