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feedback.h File Reference

Selection and feedback modes functions. More...

#include "mtypes.h"

Defines
#define	FEEDBACK_TOKEN(CTX, T)
Functions
void	_mesa_init_feedback (GLcontext *ctx)
	Initialize context feedback data. More...
void	_mesa_feedback_vertex (GLcontext *ctx, const GLfloat win[4], const GLfloat color[4], GLfloat index, const GLfloat texcoord[4])
void	_mesa_update_hitflag (GLcontext *ctx, GLfloat z)
	Update the hit flag and the maximum and minimum depth values. More...
void GLAPIENTRY	_mesa_PassThrough (GLfloat token)
void GLAPIENTRY	_mesa_FeedbackBuffer (GLsizei size, GLenum type, GLfloat *buffer)
void GLAPIENTRY	_mesa_SelectBuffer (GLsizei size, GLuint *buffer)
	Establish a buffer for selection mode values. More...
void GLAPIENTRY	_mesa_InitNames (void)
	Initialize the name stack. More...
void GLAPIENTRY	_mesa_LoadName (GLuint name)
	Load the top-most name of the name stack. More...
void GLAPIENTRY	_mesa_PushName (GLuint name)
	Push a name into the name stack. More...
void GLAPIENTRY	_mesa_PopName (void)
	Pop a name into the name stack. More...
GLint GLAPIENTRY	_mesa_RenderMode (GLenum mode)
	Set rasterization mode. More...

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Detailed Description

Selection and feedback modes functions.

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Define Documentation

#define FEEDBACK_TOKEN (  CTX, T    )

Value: if (CTX->Feedback.Count < CTX->Feedback.BufferSize) { \ CTX->Feedback.Buffer[CTX->Feedback.Count] = (GLfloat) (T); \ } \ CTX->Feedback.Count++;

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Function Documentation

void _mesa_feedback_vertex (  GLcontext *    ctx, const GLfloat    win[4], const GLfloat    color[4], GLfloat    index, const GLfloat    texcoord[4] )

void GLAPIENTRY _mesa_FeedbackBuffer (  GLsizei    size, GLenum    type, GLfloat *    buffer )

void _mesa_init_feedback (  GLcontext *    ctx )

Initialize context feedback data.

void GLAPIENTRY _mesa_InitNames (  void    )

Initialize the name stack. Verifies we are in select mode and resets the name stack depth and resets the hit record data in gl_selection. Marks new render mode in __GLcontextRec::NewState.

void GLAPIENTRY _mesa_LoadName (  GLuint    name )

Load the top-most name of the name stack. Parameters: name  name. Verifies we are in selection mode and that the name stack is not empty. Flushes vertices. If there is a hit flag writes it (via write_hit_record()), and replace the top-most name in the stack. sa __GLcontextRec::Select.

void GLAPIENTRY _mesa_PassThrough (  GLfloat    token )

void GLAPIENTRY _mesa_PopName (  void    )

Pop a name into the name stack. Verifies we are in selection mode and that the name stack is not empty. Flushes vertices. If there is a hit flag writes it (via write_hit_record()), and removes top-most name in the name stack. sa __GLcontextRec::Select.

void GLAPIENTRY _mesa_PushName (  GLuint    name )

Push a name into the name stack. Parameters: name  name. Verifies we are in selection mode and that the name stack is not full. Flushes vertices. If there is a hit flag writes it (via write_hit_record()), and adds the name to the top of the name stack. sa __GLcontextRec::Select.

GLint GLAPIENTRY _mesa_RenderMode (  GLenum    mode )

Set rasterization mode. Parameters: mode  rasterization mode. Note: this function can't be put in a display list. See also: glRenderMode(). Flushes the vertices and do the necessary cleanup according to the previous rasterization mode, such as writing the hit record or resent the select buffer index when exiting the select mode. Updates __GLcontextRec::RenderMode and notifies the driver via the dd_function_table::RenderMode callback.

void GLAPIENTRY _mesa_SelectBuffer (  GLsizei    size, GLuint *    buffer )

Establish a buffer for selection mode values. Parameters: size  buffer size. buffer  buffer. See also: glSelectBuffer(). Note: this function can't be put in a display list. Verifies we're not in selection mode, flushes the vertices and initialize the fields in __GLcontextRec::Select with the given buffer.

void _mesa_update_hitflag (  GLcontext *    ctx, GLfloat    z )

Update the hit flag and the maximum and minimum depth values. Parameters: ctx  GL context. z  depth. Sets gl_selection::HitFlag and updates gl_selection::HitMinZ and gl_selection::HitMaxZ.

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