1 /************************************************************************** 2 * 3 * Copyright 2007 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 29 #ifndef ST_CB_FBO_H 30 #define ST_CB_FBO_H 31 32 #include "main/fbobject.h" 33 #include "main/glheader.h" 34 #include "main/mtypes.h" 35 36 #include "pipe/p_compiler.h" 37 #include "pipe/p_format.h" 38 39 struct dd_function_table; 40 struct pipe_context; 41 42 /** 43 * Derived renderbuffer class. Just need to add a pointer to the 44 * pipe surface. 45 */ 46 struct st_renderbuffer 47 { 48 struct gl_renderbuffer Base; 49 struct pipe_resource *texture; 50 /* This points to either "surface_linear" or "surface_srgb". 51 * It doesn't hold the pipe_surface reference. The other two do. 52 */ 53 struct pipe_surface *surface; 54 struct pipe_surface *surface_linear; 55 struct pipe_surface *surface_srgb; 56 GLboolean defined; /**< defined contents? */ 57 58 struct pipe_transfer *transfer; /**< only used when mapping the resource */ 59 60 /** 61 * Used only when hardware accumulation buffers are not supported. 62 */ 63 boolean software; 64 void *data; 65 66 bool use_readpix_cache; 67 68 /* Inputs from Driver.RenderTexture, don't use directly. */ 69 boolean is_rtt; /**< whether Driver.RenderTexture was called */ 70 unsigned rtt_face, rtt_slice; 71 boolean rtt_layered; /**< whether glFramebufferTexture was called */ 72 }; 73 74 75 static inline struct st_renderbuffer * 76 st_renderbuffer(struct gl_renderbuffer *rb) 77 { 78 return (struct st_renderbuffer *) rb; 79 } 80 81 static inline struct pipe_resource * 82 st_get_renderbuffer_resource(struct gl_renderbuffer *rb) 83 { 84 return st_renderbuffer(rb)->texture; 85 } 86 87 /** 88 * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. 89 * Return NULL if the struct gl_framebuffer is a user-created framebuffer. 90 * We'll only return non-null for window system framebuffers. 91 * Note that this function may fail. 92 */ 93 static inline struct st_framebuffer * 94 st_ws_framebuffer(struct gl_framebuffer *fb) 95 { 96 /* FBO cannot be casted. See st_new_framebuffer */ 97 if (fb && _mesa_is_winsys_fbo(fb) && 98 fb != _mesa_get_incomplete_framebuffer()) 99 return (struct st_framebuffer *) fb; 100 return NULL; 101 } 102 103 104 extern struct gl_renderbuffer * 105 st_new_renderbuffer_fb(enum pipe_format format, unsigned samples, boolean sw); 106 107 extern void 108 st_update_renderbuffer_surface(struct st_context *st, 109 struct st_renderbuffer *strb); 110 111 extern void 112 st_init_fbo_functions(struct dd_function_table *functions); 113 114 #endif /* ST_CB_FBO_H */ 115