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/*
* Mesa 3-D graphics library
*
* Copyright (C) 1999-2006 Brian Paul 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#ifndef FRAMEBUFFER_H
#define FRAMEBUFFER_H
#include "mtypes.h"
struct gl_config;
struct gl_context;
struct gl_renderbuffer;
extern struct gl_framebuffer *
_mesa_create_framebuffer(const struct gl_config *visual);
extern struct gl_framebuffer *
_mesa_new_framebuffer(struct gl_context *ctx, GLuint name);
extern void
_mesa_initialize_window_framebuffer(struct gl_framebuffer *fb,
const struct gl_config *visual);
extern void
_mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name);
extern void
_mesa_destroy_framebuffer(struct gl_framebuffer *buffer);
extern void
_mesa_free_framebuffer_data(struct gl_framebuffer *buffer);
extern void
_mesa_reference_framebuffer_(struct gl_framebuffer **ptr,
struct gl_framebuffer *fb);
static inline void
_mesa_reference_framebuffer(struct gl_framebuffer **ptr,
struct gl_framebuffer *fb)
{
if (*ptr != fb)
_mesa_reference_framebuffer_(ptr, fb);
}
extern void
_mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
GLuint width, GLuint height);
extern void
_mesa_resizebuffers( struct gl_context *ctx );
extern void
_mesa_scissor_bounding_box(const struct gl_context *ctx,
const struct gl_framebuffer *buffer,
unsigned idx, int *bbox);
extern void
_mesa_intersect_scissor_bounding_box(const struct gl_context *ctx,
unsigned idx, int *bbox);
static inline GLuint
_mesa_geometric_width(const struct gl_framebuffer *buffer)
{
return buffer->_HasAttachments ?
buffer->Width : buffer->DefaultGeometry.Width;
}
static inline GLuint
_mesa_geometric_height(const struct gl_framebuffer *buffer)
{
return buffer->_HasAttachments ?
buffer->Height : buffer->DefaultGeometry.Height;
}
static inline GLuint
_mesa_geometric_samples(const struct gl_framebuffer *buffer)
{
return buffer->_HasAttachments ?
buffer->Visual.samples :
buffer->DefaultGeometry._NumSamples;
}
static inline GLuint
_mesa_geometric_layers(const struct gl_framebuffer *buffer)
{
return buffer->_HasAttachments ?
buffer->MaxNumLayers : buffer->DefaultGeometry.Layers;
}
extern void
_mesa_update_draw_buffer_bounds(struct gl_context *ctx,
struct gl_framebuffer *drawFb);
extern void
_mesa_update_framebuffer_visual(struct gl_context *ctx,
struct gl_framebuffer *fb);
extern void
_mesa_update_framebuffer(struct gl_context *ctx,
struct gl_framebuffer *readFb,
struct gl_framebuffer *drawFb);
extern GLboolean
_mesa_source_buffer_exists(struct gl_context *ctx, GLenum format);
extern GLboolean
_mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format);
extern GLenum
_mesa_get_color_read_type(struct gl_context *ctx,
struct gl_framebuffer *fb,
const char *caller);
extern GLenum
_mesa_get_color_read_format(struct gl_context *ctx,
struct gl_framebuffer *fb,
const char *caller);
extern struct gl_renderbuffer *
_mesa_get_read_renderbuffer_for_format(const struct gl_context *ctx,
GLenum format);
extern void
_mesa_print_framebuffer(const struct gl_framebuffer *fb);
extern bool
_mesa_is_front_buffer_reading(const struct gl_framebuffer *fb);
extern bool
_mesa_is_front_buffer_drawing(const struct gl_framebuffer *fb);
extern bool
_mesa_is_multisample_enabled(const struct gl_context *ctx);
extern bool
_mesa_is_alpha_test_enabled(const struct gl_context *ctx);
extern bool
_mesa_is_alpha_to_coverage_enabled(const struct gl_context *ctx);
#endif /* FRAMEBUFFER_H */
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