1 /* 2 * Copyright 2003 VMware, Inc. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 #include "brw_context.h" 27 #include "intel_buffers.h" 28 #include "intel_fbo.h" 29 #include "intel_mipmap_tree.h" 30 31 #include "main/fbobject.h" 32 #include "main/framebuffer.h" 33 #include "main/renderbuffer.h" 34 35 static void 36 intelDrawBuffer(struct gl_context * ctx, GLenum mode) 37 { 38 if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer)) { 39 struct brw_context *const brw = brw_context(ctx); 40 41 /* If we might be front-buffer rendering on this buffer for the first 42 * time, invalidate our DRI drawable so we'll ask for new buffers 43 * (including the fake front) before we start rendering again. 44 */ 45 dri2InvalidateDrawable(brw->driContext->driDrawablePriv); 46 intel_prepare_render(brw); 47 } 48 } 49 50 51 static void 52 intelReadBuffer(struct gl_context * ctx, GLenum mode) 53 { 54 if (_mesa_is_front_buffer_reading(ctx->ReadBuffer)) { 55 struct brw_context *const brw = brw_context(ctx); 56 57 /* If we might be front-buffer reading on this buffer for the first 58 * time, invalidate our DRI drawable so we'll ask for new buffers 59 * (including the fake front) before we start reading again. 60 */ 61 dri2InvalidateDrawable(brw->driContext->driReadablePriv); 62 intel_prepare_render(brw); 63 } 64 } 65 66 67 void 68 intelInitBufferFuncs(struct dd_function_table *functions) 69 { 70 functions->DrawBuffer = intelDrawBuffer; 71 functions->ReadBuffer = intelReadBuffer; 72 } 73