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authorEric Anholt <eric@anholt.net>2013-06-20 16:07:07 -0700
committerEric Anholt <eric@anholt.net>2013-06-26 12:28:26 -0700
commit3dbba95b72262344b82fba018b7c2c1208754cd2 (patch)
treee8d08b711fae37888c280efa3d7c0a806cefa318 /src/mesa/drivers/dri/i965/intel_buffers.c
parent733d32f3765be84a7e908df7e99a278cadcee853 (diff)
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i965: Move the remaining intel code to the i965 directory.
Now that i915's forked off, they don't need to live in a shared directory. Acked-by: Kenneth Graunke <kenneth@whitecape.org> Acked-by: Chad Versace <chad.versace@linux.intel.com> Acked-by: Adam Jackson <ajax@redhat.com> (and I hear second hand that idr is OK with it, too)
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_buffers.c')
-rw-r--r--[l---------]src/mesa/drivers/dri/i965/intel_buffers.c119
1 files changed, 118 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_buffers.c b/src/mesa/drivers/dri/i965/intel_buffers.c
index c86daa4..fdad480 120000..100644
--- a/src/mesa/drivers/dri/i965/intel_buffers.c
+++ b/src/mesa/drivers/dri/i965/intel_buffers.c
@@ -1 +1,118 @@
-../intel/intel_buffers.c \ No newline at end of file
+/**************************************************************************
+ *
+ * Copyright 2003 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 "intel_context.h"
+#include "intel_buffers.h"
+#include "intel_fbo.h"
+#include "intel_mipmap_tree.h"
+
+#include "main/fbobject.h"
+#include "main/framebuffer.h"
+#include "main/renderbuffer.h"
+
+/**
+ * Return pointer to current color reading region, or NULL.
+ */
+struct intel_region *
+intel_readbuf_region(struct intel_context *intel)
+{
+ struct intel_renderbuffer *irb
+ = intel_renderbuffer(intel->ctx.ReadBuffer->_ColorReadBuffer);
+ if (irb && irb->mt)
+ return irb->mt->region;
+ else
+ return NULL;
+}
+
+/**
+ * Check if we're about to draw into the front color buffer.
+ * If so, set the intel->front_buffer_dirty field to true.
+ */
+void
+intel_check_front_buffer_rendering(struct intel_context *intel)
+{
+ const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
+ if (_mesa_is_winsys_fbo(fb)) {
+ /* drawing to window system buffer */
+ if (fb->_NumColorDrawBuffers > 0) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
+ intel->front_buffer_dirty = true;
+ }
+ }
+ }
+}
+
+static void
+intelDrawBuffer(struct gl_context * ctx, GLenum mode)
+{
+ if (ctx->DrawBuffer && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
+ struct intel_context *const intel = intel_context(ctx);
+ const bool was_front_buffer_rendering =
+ intel->is_front_buffer_rendering;
+
+ intel->is_front_buffer_rendering = (mode == GL_FRONT_LEFT)
+ || (mode == GL_FRONT) || (mode == GL_FRONT_AND_BACK);
+
+ /* If we weren't front-buffer rendering before but we are now,
+ * invalidate our DRI drawable so we'll ask for new buffers
+ * (including the fake front) before we start rendering again.
+ */
+ if (!was_front_buffer_rendering && intel->is_front_buffer_rendering)
+ dri2InvalidateDrawable(intel->driContext->driDrawablePriv);
+ }
+
+ intel_draw_buffer(ctx);
+}
+
+
+static void
+intelReadBuffer(struct gl_context * ctx, GLenum mode)
+{
+ if (ctx->DrawBuffer && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
+ struct intel_context *const intel = intel_context(ctx);
+ const bool was_front_buffer_reading =
+ intel->is_front_buffer_reading;
+
+ intel->is_front_buffer_reading = (mode == GL_FRONT_LEFT)
+ || (mode == GL_FRONT);
+
+ /* If we weren't front-buffer reading before but we are now,
+ * invalidate our DRI drawable so we'll ask for new buffers
+ * (including the fake front) before we start reading again.
+ */
+ if (!was_front_buffer_reading && intel->is_front_buffer_reading)
+ dri2InvalidateDrawable(intel->driContext->driReadablePriv);
+ }
+}
+
+
+void
+intelInitBufferFuncs(struct dd_function_table *functions)
+{
+ functions->DrawBuffer = intelDrawBuffer;
+ functions->ReadBuffer = intelReadBuffer;
+}