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/************************************************************************** |
* |
* Copyright 2006 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. |
* |
**************************************************************************/ |
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#ifndef INTEL_FBO_H |
#define INTEL_FBO_H |
|
#include <stdbool.h> |
#include <assert.h> |
#include "main/formats.h" |
#include "main/macros.h" |
#include "intel_context.h" |
#include "intel_mipmap_tree.h" |
#include "intel_screen.h" |
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#ifdef __cplusplus |
extern "C" { |
#endif |
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struct intel_context; |
struct intel_mipmap_tree; |
struct intel_texture_image; |
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/** |
* Intel renderbuffer, derived from gl_renderbuffer. |
*/ |
struct intel_renderbuffer |
{ |
struct swrast_renderbuffer Base; |
struct intel_mipmap_tree *mt; /**< The renderbuffer storage. */ |
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/** |
* \name Miptree view |
* \{ |
* |
* Multiple renderbuffers may simultaneously wrap a single texture and each |
* provide a different view into that texture. The fields below indicate |
* which miptree slice is wrapped by this renderbuffer. The fields' values |
* are consistent with the 'level' and 'layer' parameters of |
* glFramebufferTextureLayer(). |
* |
* For renderbuffers not created with glFramebufferTexture*(), mt_level and |
* mt_layer are 0. |
*/ |
unsigned int mt_level; |
unsigned int mt_layer; |
/** \} */ |
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GLuint draw_x, draw_y; /**< Offset of drawing within the region */ |
}; |
|
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/** |
* gl_renderbuffer is a base class which we subclass. The Class field |
* is used for simple run-time type checking. |
*/ |
#define INTEL_RB_CLASS 0x12345678 |
|
|
/** |
* Return a gl_renderbuffer ptr casted to intel_renderbuffer. |
* NULL will be returned if the rb isn't really an intel_renderbuffer. |
* This is determined by checking the ClassID. |
*/ |
static INLINE struct intel_renderbuffer * |
intel_renderbuffer(struct gl_renderbuffer *rb) |
{ |
struct intel_renderbuffer *irb = (struct intel_renderbuffer *) rb; |
if (irb && irb->Base.Base.ClassID == INTEL_RB_CLASS) { |
/*_mesa_warning(NULL, "Returning non-intel Rb\n");*/ |
return irb; |
} |
else |
return NULL; |
} |
|
|
/** |
* \brief Return the framebuffer attachment specified by attIndex. |
* |
* If the framebuffer lacks the specified attachment, then return null. |
* |
* If the attached renderbuffer is a wrapper, then return wrapped |
* renderbuffer. |
*/ |
static INLINE struct intel_renderbuffer * |
intel_get_renderbuffer(struct gl_framebuffer *fb, gl_buffer_index attIndex) |
{ |
struct gl_renderbuffer *rb; |
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assert((unsigned)attIndex < ARRAY_SIZE(fb->Attachment)); |
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rb = fb->Attachment[attIndex].Renderbuffer; |
if (!rb) |
return NULL; |
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return intel_renderbuffer(rb); |
} |
|
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static INLINE gl_format |
intel_rb_format(const struct intel_renderbuffer *rb) |
{ |
return rb->Base.Base.Format; |
} |
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extern struct intel_renderbuffer * |
intel_create_renderbuffer(gl_format format); |
|
struct intel_renderbuffer * |
intel_create_private_renderbuffer(gl_format format); |
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struct gl_renderbuffer* |
intel_create_wrapped_renderbuffer(struct gl_context * ctx, |
int width, int height, |
gl_format format); |
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extern void |
intel_fbo_init(struct intel_context *intel); |
|
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extern void |
intel_flip_renderbuffers(struct gl_framebuffer *fb); |
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void |
intel_renderbuffer_set_draw_offset(struct intel_renderbuffer *irb); |
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static inline uint32_t |
intel_renderbuffer_get_tile_offsets(struct intel_renderbuffer *irb, |
uint32_t *tile_x, |
uint32_t *tile_y) |
{ |
return intel_miptree_get_tile_offsets(irb->mt, irb->mt_level, irb->mt_layer, |
tile_x, tile_y); |
} |
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struct intel_region* |
intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex); |
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#ifdef __cplusplus |
} |
#endif |
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#endif /* INTEL_FBO_H */ |