1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Mesa 3-D graphics library 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Version: 6.5 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice shall be included 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * in all copies or substantial portions of the Software. 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "glheader.h" 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "imports.h" 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "context.h" 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "fbobject.h" 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "formats.h" 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "mtypes.h" 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "renderbuffer.h" 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Initialize the fields of a gl_renderbuffer to default values. 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_init_renderbuffer(struct gl_renderbuffer *rb, GLuint name) 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_INIT_MUTEX(rb->Mutex); 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->ClassID = 0; 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->Name = name; 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->RefCount = 0; 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->Delete = _mesa_delete_renderbuffer; 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* The rest of these should be set later by the caller of this function or 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the AllocStorage method: 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->AllocStorage = NULL; 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->Width = 0; 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->Height = 0; 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->InternalFormat = GL_RGBA; 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->Format = MESA_FORMAT_NONE; 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Allocate a new gl_renderbuffer object. This can be used for user-created 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * renderbuffers or window-system renderbuffers. 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstruct gl_renderbuffer * 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_new_renderbuffer(struct gl_context *ctx, GLuint name) 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_renderbuffer *rb = CALLOC_STRUCT(gl_renderbuffer); 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (rb) { 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_init_renderbuffer(rb, name); 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return rb; 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Delete a gl_framebuffer. 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * This is the default function for renderbuffer->Delete(). 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Drivers which subclass gl_renderbuffer should probably implement their 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * own delete function. But the driver might also call this function to 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * free the object in the end. 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_delete_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb) 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_DESTROY_MUTEX(rb->Mutex); 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org free(rb); 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Attach a renderbuffer to a framebuffer. 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * \param bufferName one of the BUFFER_x tokens 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_add_renderbuffer(struct gl_framebuffer *fb, 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_buffer_index bufferName, struct gl_renderbuffer *rb) 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(fb); 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(rb); 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(bufferName < BUFFER_COUNT); 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* There should be no previous renderbuffer on this attachment point, 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * with the exception of depth/stencil since the same renderbuffer may 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * be used for both. 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(bufferName == BUFFER_DEPTH || 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bufferName == BUFFER_STENCIL || 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fb->Attachment[bufferName].Renderbuffer == NULL); 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* winsys vs. user-created buffer cross check */ 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (_mesa_is_user_fbo(fb)) { 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(rb->Name); 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else { 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(!rb->Name); 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fb->Attachment[bufferName].Type = GL_RENDERBUFFER_EXT; 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fb->Attachment[bufferName].Complete = GL_TRUE; 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_reference_renderbuffer(&fb->Attachment[bufferName].Renderbuffer, rb); 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Remove the named renderbuffer from the given framebuffer. 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * \param bufferName one of the BUFFER_x tokens 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_remove_renderbuffer(struct gl_framebuffer *fb, 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_buffer_index bufferName) 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(bufferName < BUFFER_COUNT); 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_reference_renderbuffer(&fb->Attachment[bufferName].Renderbuffer, 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL); 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Set *ptr to point to rb. If *ptr points to another renderbuffer, 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * dereference that buffer first. The new renderbuffer's refcount will 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * be incremented. The old renderbuffer's refcount will be decremented. 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * This is normally only called from the _mesa_reference_renderbuffer() macro 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * when there's a real pointer change. 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_reference_renderbuffer_(struct gl_renderbuffer **ptr, 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_renderbuffer *rb) 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (*ptr) { 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Unreference the old renderbuffer */ 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLboolean deleteFlag = GL_FALSE; 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_renderbuffer *oldRb = *ptr; 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_LOCK_MUTEX(oldRb->Mutex); 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(oldRb->RefCount > 0); 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org oldRb->RefCount--; 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /*printf("RB DECR %p (%d) to %d\n", (void*) oldRb, oldRb->Name, oldRb->RefCount);*/ 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org deleteFlag = (oldRb->RefCount == 0); 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_UNLOCK_MUTEX(oldRb->Mutex); 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (deleteFlag) { 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GET_CURRENT_CONTEXT(ctx); 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org oldRb->Delete(ctx, oldRb); 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *ptr = NULL; 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(!*ptr); 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (rb) { 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* reference new renderbuffer */ 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_LOCK_MUTEX(rb->Mutex); 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rb->RefCount++; 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /*printf("RB INCR %p (%d) to %d\n", (void*) rb, rb->Name, rb->RefCount);*/ 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _glthread_UNLOCK_MUTEX(rb->Mutex); 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *ptr = rb; 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 179