95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/**************************************************************************
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*
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* Copyright 2003 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "intel_context.h"
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#include "intel_buffers.h"
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#include "intel_fbo.h"
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#include "intel_mipmap_tree.h"
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#include "main/fbobject.h"
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#include "main/framebuffer.h"
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#include "main/renderbuffer.h"
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/**
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* Check if we're about to draw into the front color buffer.
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* If so, set the intel->front_buffer_dirty field to true.
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*/
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void
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intel_check_front_buffer_rendering(struct intel_context *intel)
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{
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const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
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if (_mesa_is_winsys_fbo(fb)) {
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/* drawing to window system buffer */
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if (fb->_NumColorDrawBuffers > 0) {
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if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
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intel->front_buffer_dirty = true;
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}
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}
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}
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}
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static void
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intelDrawBuffer(struct gl_context * ctx)
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{
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if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer)) {
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struct intel_context *const intel = intel_context(ctx);
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/* If we might be front-buffer rendering on this buffer for the first
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* time, invalidate our DRI drawable so we'll ask for new buffers
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* (including the fake front) before we start rendering again.
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*/
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if (intel->driContext->driDrawablePriv)
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dri2InvalidateDrawable(intel->driContext->driDrawablePriv);
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}
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intel_draw_buffer(ctx);
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}
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static void
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intelReadBuffer(struct gl_context * ctx, GLenum mode)
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{
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if (_mesa_is_front_buffer_reading(ctx->ReadBuffer)) {
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struct intel_context *const intel = intel_context(ctx);
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/* If we might be front-buffer reading on this buffer for the first
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* time, invalidate our DRI drawable so we'll ask for new buffers
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* (including the fake front) before we start reading again.
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*/
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if (intel->driContext->driReadablePriv)
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dri2InvalidateDrawable(intel->driContext->driReadablePriv);
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}
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}
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void
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intelInitBufferFuncs(struct dd_function_table *functions)
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{
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functions->DrawBuffer = intelDrawBuffer;
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functions->ReadBuffer = intelReadBuffer;
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}
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