correct some little things on bitmaps
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<p>this struct is a point in 3d, which has coords save as double it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>this struct is a point in 3d, which has coords save as double it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation </p>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00023">23</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<a id="af88b946fb90d5f08b5fb740c70e98c10"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af88b946fb90d5f08b5fb740c70e98c10">◆ </a></span>x</h2>
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<td class="memname">double x</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00025">25</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab927965981178aa1fba979a37168db2a">◆ </a></span>y</h2>
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<div class="memitem">
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<td class="memname">double y</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00025">25</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab3e6ed577a7c669c19de1f9c1b46c872">◆ </a></span>z</h2>
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<td class="memname">double z</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00025">25</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
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<p>This is a point which is used for 3d translations and rendering integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet.
|
||||
<a href="structrender__integer__point.html#details">More...</a></p>
|
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<tr class="memitem:a07494c9011ab307701955a2a50447d8e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structrender__integer__position.html">render_integer_position</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structrender__integer__point.html#a07494c9011ab307701955a2a50447d8e">real</a></td></tr>
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<div class="textblock"><p>This is a point which is used for 3d translations and rendering integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet. </p>
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||||
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||||
<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00036">36</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a07494c9011ab307701955a2a50447d8e">◆ </a></span>real</h2>
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<td class="memname"><a class="el" href="structrender__integer__position.html">render_integer_position</a> real</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00038">38</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<td class="memname"><a class="el" href="structrender__integer__position.html">render_integer_position</a> translated</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00038">38</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
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<li>include/render/<a class="el" href="translate_8h_source.html">translate.h</a></li>
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<div id="projectname">FxEngine
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 <span id="projectnumber">0.0.1</span>
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<div id="projectbrief">3d engine for fx9860G calculators</div>
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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="headertitle">
|
||||
<div class="title">render_integer_position Struct Reference</div> </div>
|
||||
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|
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<div class="contents">
|
||||
|
||||
<p>this struct is a point in 3d, which has coords save as uint32_t this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits
|
||||
<a href="structrender__integer__position.html#details">More...</a></p>
|
||||
|
||||
<p><code>#include <<a class="el" href="translate_8h_source.html">translate.h</a>></code></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
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Data Fields</h2></td></tr>
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<tr class="memitem:af6d3062751bd565decb1a2cd3b63bdb2"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structrender__integer__position.html#af6d3062751bd565decb1a2cd3b63bdb2">x</a></td></tr>
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<tr class="memitem:af64066d134a77e01b3d6eb8da813627a"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structrender__integer__position.html#af64066d134a77e01b3d6eb8da813627a">y</a></td></tr>
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<tr class="memitem:ac2fb30be1b894e32b31b68bb513262a3"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structrender__integer__position.html#ac2fb30be1b894e32b31b68bb513262a3">z</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
|
||||
<div class="textblock"><p>this struct is a point in 3d, which has coords save as uint32_t this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits </p>
|
||||
|
||||
<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00011">11</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
|
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</div><h2 class="groupheader">Field Documentation</h2>
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<a id="af6d3062751bd565decb1a2cd3b63bdb2"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af6d3062751bd565decb1a2cd3b63bdb2">◆ </a></span>x</h2>
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<td class="memname">int32_t x</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00013">13</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
|
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<a id="af64066d134a77e01b3d6eb8da813627a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af64066d134a77e01b3d6eb8da813627a">◆ </a></span>y</h2>
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<div class="memproto">
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00013">13</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
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<a id="ac2fb30be1b894e32b31b68bb513262a3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ac2fb30be1b894e32b31b68bb513262a3">◆ </a></span>z</h2>
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<div class="memitem">
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<div class="memproto">
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<td class="memname">int32_t z</td>
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<p class="definition">Definition at line <a class="el" href="translate_8h_source.html#l00013">13</a> of file <a class="el" href="translate_8h_source.html">translate.h</a>.</p>
|
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</div>
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</div>
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<hr/>The documentation for this struct was generated from the following file:<ul>
|
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<li>include/render/<a class="el" href="translate_8h_source.html">translate.h</a></li>
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Generated by  <a href="http://www.doxygen.org/index.html">
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</a> 1.8.15
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</html>
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|
@ -0,0 +1,47 @@
|
|||
.TH "render_floating_position" 3 "Fri Aug 30 2019" "Version 0.0.1" "FxEngine" \" -*- nroff -*-
|
||||
.ad l
|
||||
.nh
|
||||
.SH NAME
|
||||
render_floating_position \- this struct is a point in 3d, which has coords save as double it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation
|
||||
|
||||
.SH SYNOPSIS
|
||||
.br
|
||||
.PP
|
||||
.PP
|
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\fC#include <translate\&.h>\fP
|
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.SS "Data Fields"
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.RI "double \fBx\fP"
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.ti -1c
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.RI "double \fBy\fP"
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.ti -1c
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.RI "double \fBz\fP"
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.br
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|
||||
.SH "Detailed Description"
|
||||
.PP
|
||||
this struct is a point in 3d, which has coords save as double it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation
|
||||
.PP
|
||||
Definition at line 23 of file translate\&.h\&.
|
||||
.SH "Field Documentation"
|
||||
.PP
|
||||
.SS "double x"
|
||||
|
||||
.PP
|
||||
Definition at line 25 of file translate\&.h\&.
|
||||
.SS "double y"
|
||||
|
||||
.PP
|
||||
Definition at line 25 of file translate\&.h\&.
|
||||
.SS "double z"
|
||||
|
||||
.PP
|
||||
Definition at line 25 of file translate\&.h\&.
|
||||
|
||||
.SH "Author"
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.PP
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Generated automatically by Doxygen for FxEngine from the source code\&.
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|
|
@ -0,0 +1,40 @@
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.TH "render_integer_point" 3 "Fri Aug 30 2019" "Version 0.0.1" "FxEngine" \" -*- nroff -*-
|
||||
.ad l
|
||||
.nh
|
||||
.SH NAME
|
||||
render_integer_point \- This is a point which is used for 3d translations and rendering integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet\&.
|
||||
|
||||
.SH SYNOPSIS
|
||||
.br
|
||||
.PP
|
||||
.PP
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\fC#include <translate\&.h>\fP
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.SS "Data Fields"
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.RI "\fBrender_integer_position\fP \fBreal\fP"
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||||
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.SH "Detailed Description"
|
||||
.PP
|
||||
This is a point which is used for 3d translations and rendering integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet\&.
|
||||
.PP
|
||||
Definition at line 36 of file translate\&.h\&.
|
||||
.SH "Field Documentation"
|
||||
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|
||||
.SS "\fBrender_integer_position\fP real"
|
||||
|
||||
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|
||||
Definition at line 38 of file translate\&.h\&.
|
||||
.SS "\fBrender_integer_position\fP translated"
|
||||
|
||||
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|
||||
Definition at line 38 of file translate\&.h\&.
|
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.SH "Author"
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||||
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Generated automatically by Doxygen for FxEngine from the source code\&.
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|
|
@ -0,0 +1,47 @@
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.TH "render_integer_position" 3 "Fri Aug 30 2019" "Version 0.0.1" "FxEngine" \" -*- nroff -*-
|
||||
.ad l
|
||||
.nh
|
||||
.SH NAME
|
||||
render_integer_position \- this struct is a point in 3d, which has coords save as uint32_t this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits
|
||||
|
||||
.SH SYNOPSIS
|
||||
.br
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||||
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.PP
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\fC#include <translate\&.h>\fP
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.SS "Data Fields"
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|
||||
.RI "int32_t \fBz\fP"
|
||||
.br
|
||||
.in -1c
|
||||
.SH "Detailed Description"
|
||||
.PP
|
||||
this struct is a point in 3d, which has coords save as uint32_t this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits
|
||||
.PP
|
||||
Definition at line 11 of file translate\&.h\&.
|
||||
.SH "Field Documentation"
|
||||
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|
||||
.SS "int32_t x"
|
||||
|
||||
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|
||||
Definition at line 13 of file translate\&.h\&.
|
||||
.SS "int32_t y"
|
||||
|
||||
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|
||||
Definition at line 13 of file translate\&.h\&.
|
||||
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|
||||
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||||
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Definition at line 13 of file translate\&.h\&.
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Generated automatically by Doxygen for FxEngine from the source code\&.
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||||
|
|
@ -0,0 +1,27 @@
|
|||
#ifndef FE_KEYBOARD
|
||||
#define FE_KEYBOARD
|
||||
|
||||
#include <gint/keyboard.h>
|
||||
#include <gint/keycodes.h>
|
||||
#include <stdint.h>
|
||||
|
||||
/* FE_keyboard: gestion evenementielle du clavier
|
||||
on peut assigner des callbacks à certains evènements définis dans gint
|
||||
les arguments envoyés sont le code de la touche en question (event.key)
|
||||
le type d'evenement (event.type)
|
||||
void (*callback)(void)
|
||||
la fonction à exécuter en cas de pression sur une touche
|
||||
la fonction reload est appelée à la demande de l'utilisateur et appelle tous les callbacks dans l'ordre */
|
||||
|
||||
typedef void (*callback)(void);
|
||||
|
||||
void event_keyboard_set_key(uint32_t matrix_code, uint32_t ev_type, callback function);
|
||||
|
||||
// reload all key events and call callbacks
|
||||
void event_keyboard_reload();
|
||||
|
||||
//void event_keyboard_start();
|
||||
|
||||
//void event_keyboard_stop();
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
#ifndef RENDER_BITMAP
|
||||
#define RENDER_BITMAP
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
/**
|
||||
* @brief bitmap rich type
|
||||
* transparency is in the layout
|
||||
* @warning Monochrome only !
|
||||
*/
|
||||
struct bitmap_rich
|
||||
{
|
||||
uint32_t size_px_x;
|
||||
uint32_t size_px_y;
|
||||
uint32_t size_o_y;
|
||||
|
||||
uint32_t * color;
|
||||
bool color_dynamic;
|
||||
uint32_t * layout;
|
||||
bool layout_dynamic;
|
||||
};
|
||||
typedef struct bitmap_rich bitmap_rich;
|
||||
|
||||
|
||||
/**
|
||||
* @brief { function_description }
|
||||
*
|
||||
* @param[in] size_px_x The width in px
|
||||
* @param[in] size_px_y The height in px
|
||||
* @param color color origin
|
||||
* @param[in] copy_color if you want to make a copy, or only to make a link
|
||||
* @param layout layout origin -> can be set as 0 if it isn't needed
|
||||
* @param[in] copy_layout if you want to make a copy, or to make a link
|
||||
*
|
||||
* @return a rich bitmap, ready to use !
|
||||
*/
|
||||
bitmap_rich* bitmap_new_rich(uint32_t size_px_x, uint32_t size_px_y, uint32_t* color, bool copy_color,
|
||||
uint32_t *layout, bool copy_layout);
|
||||
|
||||
/**
|
||||
* @brief delete a rich bitmap created with bitmap_new_rich()
|
||||
*
|
||||
* @param bmp The bitmap to delete
|
||||
*/
|
||||
void bitmap_delete_rich(bitmap_rich* bmp);
|
||||
|
||||
|
||||
/**
|
||||
* @brief get the color of pixel from rich bitmap
|
||||
*
|
||||
* @param[in] bmp The bitmap
|
||||
* @param[in] x The bitmap x coordinate (in pixels)
|
||||
* @param[in] y The bitmap y coordinate (in pixels)
|
||||
*
|
||||
* @return the color coded in a unsigned char :
|
||||
* if (color >> 1)
|
||||
* switch (color%2)
|
||||
* {
|
||||
* case 0:
|
||||
* // WHITE
|
||||
* break;
|
||||
* case 1:
|
||||
* // BLACK
|
||||
* }
|
||||
* else
|
||||
*/
|
||||
uint8_t bitmap_get_pixel_r(const bitmap_rich * bmp, uint32_t x, uint32_t y);
|
||||
|
||||
|
||||
/**
|
||||
* @brief display a specific rich bitmap pixel on the screen
|
||||
*
|
||||
* @param[in] bmp The bitmap
|
||||
* @param[in] bmp_x The bitmap x coordinate (in pixels)
|
||||
* @param[in] bmp_y The bitmap y coordinate (in pixels)
|
||||
* @param[in] x screen : x coordinate
|
||||
* @param[in] y screen : y coordinate
|
||||
*/
|
||||
void bitmap_display_pixel_r(const bitmap_rich * bmp, uint32_t bmp_x, uint32_t bmp_y, uint32_t x, uint32_t y);
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
#ifndef RENDER_PARAM
|
||||
#define RENDER_PARAM
|
||||
|
||||
|
||||
// Render param
|
||||
|
||||
#define render_width 128
|
||||
#define render_height 64
|
||||
#define render_x_mid ((render_width - 1) / 2) // depends on screen width
|
||||
#define render_y_mid ((render_height - 1) / 2)
|
||||
|
||||
#define render_max_dist 3000
|
||||
#define render_min_dist 1
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
#ifndef RENDER_TRANSLATE_H
|
||||
#define RENDER_TRANSLATE_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <fxengine/render/parameters.h>
|
||||
|
||||
/**
|
||||
* @brief this struct is a point in 3d, which has coords save as uint32_t
|
||||
* this is the recommended type for high performance rendering, because the sh3eb-elf architecture is 32 bits
|
||||
*/
|
||||
struct render_integer_position
|
||||
{
|
||||
int32_t x,
|
||||
y,
|
||||
z;
|
||||
};
|
||||
typedef struct render_integer_position render_integer_position;
|
||||
|
||||
/**
|
||||
* @brief this struct is a point in 3d, which has coords save as double
|
||||
* it is not recommended to use it for high performances rendering, because of the sh3eb-elf architecture, which does not support natively floating calculation
|
||||
*/
|
||||
struct render_floating_position
|
||||
{
|
||||
double x,
|
||||
y,
|
||||
z;
|
||||
};
|
||||
typedef struct render_floating_position render_floating_position;
|
||||
|
||||
|
||||
/**
|
||||
* @brief This is a point which is used for 3d translations and rendering
|
||||
* integer mode is the best solution to increase perfs, and that's why I didn't have implemented te floating_points yet.
|
||||
*/
|
||||
struct render_integer_point
|
||||
{
|
||||
render_integer_position real;
|
||||
render_integer_position translated;
|
||||
};
|
||||
|
||||
typedef struct render_integer_point render_integer_point;
|
||||
|
||||
|
||||
// applique la matrice de rotation et les deltas sur les coordonnées d'un point
|
||||
|
||||
/**
|
||||
* @brief This function rotates and applies perspective on an integer point
|
||||
*
|
||||
* @param point The point which needs to be translated
|
||||
*/
|
||||
void render_translate(render_integer_point * point);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief Sets up the translation matrices for a new rendering cycle
|
||||
* There is no need to call this function if you have already called render_update()
|
||||
*
|
||||
* @param[in] dh Camera's horizontal direction (rad)
|
||||
* @param[in] dv Camera's vertical direction (rad)
|
||||
* @param[in] roulis Optionnal rotation around the middle of the screen
|
||||
* @param[in] camera The camera's coordinates, as an integer position
|
||||
*/
|
||||
void render_set(const double dh, const double dv, const double roulis, const render_integer_position * camera);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* mathematics constants
|
||||
*/
|
||||
extern const double pi, pi2, pi_sur_2;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Sets up an angle mesure between -pi and +pi
|
||||
*
|
||||
* @param[in] a the angle (rad)
|
||||
*
|
||||
* @return angle mesure which respect the following contraint :
|
||||
* -pi <= angle <= pi
|
||||
*/
|
||||
double modulo_2pi(double a);
|
||||
|
||||
/**
|
||||
* @brief Homemade cosinus implementation, which is faster than casio provided cosinus function
|
||||
*
|
||||
* @param[in] angle The angle (rad)
|
||||
*
|
||||
* @return cos angle
|
||||
*/
|
||||
double cos(double angle);
|
||||
|
||||
/**
|
||||
* @brief Homemade sinus implementation, which is faster than casio provided sinus function
|
||||
*
|
||||
* @param[in] angle The angle (rad)
|
||||
*
|
||||
* @return sin angle
|
||||
*/
|
||||
double sin(const double angle);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
#ifndef RENDER_TRIANGLE_H
|
||||
#define RENDER_TRIANGLE_H
|
||||
|
||||
#include <fxengine/render/translate.h>
|
||||
#include <fxengine/render/bitmap.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
/**
|
||||
* @brief Regulates the maximum fps count to 30 fps
|
||||
*/
|
||||
#define MINIMUM_FRAME_DELAY 3333
|
||||
|
||||
/**
|
||||
* @brief Triangle struct used to render fonctions
|
||||
* @param[out] part choose the used texture half
|
||||
* @param[out] clockwised choose the visible side of the face
|
||||
* @param[out] s1,s2,s3 three points
|
||||
* @param[out] texture used texture
|
||||
*/
|
||||
struct render_triangle
|
||||
{
|
||||
render_integer_position * s1;
|
||||
render_integer_position * s2;
|
||||
render_integer_position * s3;
|
||||
|
||||
bitmap_rich * texture;
|
||||
|
||||
bool part;
|
||||
bool clockwised;
|
||||
};
|
||||
typedef struct render_triangle render_triangle;
|
||||
|
||||
/**
|
||||
* @brief Renders a triangle with perspective deformation
|
||||
*
|
||||
* @param[in] face pointer to the face to draw
|
||||
*/
|
||||
void render_display_triangle(const render_triangle * face);
|
||||
|
||||
/**
|
||||
* @brief Clears vram, zbuffer
|
||||
*
|
||||
* @param[in] libprof_channel The libprof channel to be used to count_fps
|
||||
* @param[in] dh Horizontal direction (rad)
|
||||
* @param[in] dv Vertical direction (rad)
|
||||
* @param[in] roulis The roulis (rad)
|
||||
* @param[in] camera Pointer to the camera
|
||||
*/
|
||||
void render_update(const uint32_t libprof_channel);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
#ifndef RENDER_ZBUFFER
|
||||
#define RENDER_ZBUFFER
|
||||
|
||||
#include <fxengine/render/parameters.h>
|
||||
#include <stdint.h>
|
||||
|
||||
/** FE_zbuffer_clear
|
||||
* effacer le z buffer pour un nouveau cycle de dessin
|
||||
* TODO : ajouter effacement avec le DMA Controller pour les modèles ayant un processeur SH4-A
|
||||
**/
|
||||
void render_zbuffer_clear();
|
||||
|
||||
#include <stdbool.h>
|
||||
/** FE_zbuffer_set_dist
|
||||
* change la distance d'un pixel du zbuffer
|
||||
* retourne true si il faut dessiner le pixel
|
||||
* retourne false si le pixel est déjà existant
|
||||
**/
|
||||
bool render_zbuffer_set_px(uint32_t x, uint32_t y, uint32_t dist); // if you are allowed to draw the pixel on vram
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
#include <fxengine/event/keyboard.h>
|
||||
|
||||
static callback callbacks[3][6][10]={0};
|
||||
|
||||
static inline uint32_t get_x(const uint32_t matrix_code)
|
||||
{
|
||||
return (matrix_code-1) % 0x10;
|
||||
}
|
||||
|
||||
static inline uint32_t get_y(const uint32_t matrix_code)
|
||||
{
|
||||
return (matrix_code-1) / 0x10;
|
||||
}
|
||||
|
||||
void FE_keyboard_reload()
|
||||
{
|
||||
key_event_t event;
|
||||
while (1)
|
||||
{
|
||||
event=pollevent();
|
||||
event.type--;
|
||||
if (event.type==-1)
|
||||
break;
|
||||
callback action = callbacks[event.type][get_x(event.key)][get_y(event.key)];
|
||||
if (action)
|
||||
action();
|
||||
}
|
||||
}
|
||||
|
||||
void FE_keyboard_set_key(uint32_t matrix_code, uint32_t ev_type, callback function)
|
||||
{
|
||||
callbacks[ev_type-1][get_x(matrix_code)][get_y(matrix_code)]=function;
|
||||
}
|
||||
|
|
@ -0,0 +1,215 @@
|
|||
#include <fxengine/render/triangle.h>
|
||||
#include <fxengine/render/bitmap.h>
|
||||
#include <fxengine/render/translate.h>
|
||||
#include <fxengine/render/zbuffer.h>
|
||||
|
||||
#include <libprof.h>
|
||||
|
||||
#include <gint/display.h>
|
||||
#include <gint/clock.h>
|
||||
|
||||
static uint32_t frame_interval_min;
|
||||
static uint32_t frame_interval_max;
|
||||
|
||||
void render_update(const uint32_t libprof_channel)
|
||||
{
|
||||
//dupdate();
|
||||
|
||||
// gestion du temps avec libprof
|
||||
if (prof_elapsed)
|
||||
{
|
||||
prof_leave(0);
|
||||
uint32_t frame_interval = prof_time(0);
|
||||
//sleep_us(0, MINIMUM_FRAME_DELAY-frame_interval);
|
||||
if (frame_interval<frame_interval_min)
|
||||
frame_interval_min = frame_interval;
|
||||
if (frame_interval>frame_interval_max)
|
||||
frame_interval_max = frame_interval;
|
||||
}
|
||||
else
|
||||
{
|
||||
prof_init(libprof_channel+1, 0);
|
||||
}
|
||||
//dupdate();
|
||||
prof_clear(0);
|
||||
prof_enter(0);
|
||||
|
||||
render_zbuffer_clear();
|
||||
|
||||
///render_set(dh, dv, roulis, camera);
|
||||
|
||||
dclear(C_WHITE);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Orientation of the face
|
||||
*
|
||||
* @param face The face
|
||||
*
|
||||
* @return if it is true the it is clockwised else it isn't clockwised
|
||||
*/
|
||||
static bool is_colckwised(render_triangle const * face)
|
||||
{
|
||||
int32_t area = 0;
|
||||
|
||||
area += face->s1->x * face->s2->y;
|
||||
area -= face->s2->x * face->s1->y;
|
||||
|
||||
area += face->s2->x * face->s3->y;
|
||||
area -= face->s3->x * face->s2->y;
|
||||
|
||||
area += face->s3->x * face->s1->y;
|
||||
area -= face->s1->x * face->s3->y;
|
||||
|
||||
return (area < 0);
|
||||
}
|
||||
|
||||
|
||||
// gestion locale des arètes
|
||||
typedef struct line line;
|
||||
struct line
|
||||
{
|
||||
int32_t x,y,z;
|
||||
int32_t dx,dy,dz;
|
||||
int32_t no_line; // si les deux points sont confondus (se comporte comme un bool)
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Sets up a line with 2 points
|
||||
*
|
||||
* @param l The line
|
||||
* @param s1 The s 1
|
||||
* @param s2 The s 2
|
||||
*/
|
||||
static void line_set(line* l,render_integer_position const * s1, render_integer_position const * s2)
|
||||
{
|
||||
l->x = s1->x;
|
||||
l->y = s1->y;
|
||||
l->z = s1->z;
|
||||
l->dx = s2->x - s1->x;
|
||||
l->dy = s2->y - s1->y;
|
||||
l->dz = s2->z - s1->z;
|
||||
l->no_line = (l->dx==0 && l->dy==0);
|
||||
}
|
||||
|
||||
static int32_t max(int32_t x, int32_t y)
|
||||
{
|
||||
return (x>y ? x : y);
|
||||
}
|
||||
|
||||
static int32_t min(int32_t x, int32_t y)
|
||||
{
|
||||
return (x<y ? x : y);
|
||||
}
|
||||
|
||||
static int32_t abs(int32_t x)
|
||||
{
|
||||
return(x<0 ? -x : x);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief get the corresponding x from the y coordinate
|
||||
*
|
||||
* @param[in] y the y coordinate
|
||||
* @param l the line
|
||||
* @param x address where x is written
|
||||
*
|
||||
* @return if given point coordinate belongs to the l
|
||||
*/
|
||||
static bool line_get_x(int32_t y, line const * l, int32_t * x)
|
||||
{
|
||||
y -= l->y;
|
||||
if (y < 0 && l->dy > 0)
|
||||
return false;
|
||||
if (y > 0 && l->dy < 0)
|
||||
return false;
|
||||
if (abs(y) > abs(l->dy))
|
||||
return false;
|
||||
|
||||
if (l->dy != 0)
|
||||
*x = l->x + (y * l->dx) / l->dy;
|
||||
else if (y==0)
|
||||
*x = l->x + l->dx;
|
||||
else
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
void render_display_triangle(const render_triangle * face)
|
||||
{
|
||||
// backface culling
|
||||
if (is_colckwised(face) != face->clockwised)
|
||||
return;
|
||||
|
||||
// incomplete clipping
|
||||
if (face->s1->x < 0 && face->s2->x < 0 && face->s3->x < 0)
|
||||
return;
|
||||
if (face->s1->x >= render_width && face->s2->x >= render_width && face->s3->x >= render_width)
|
||||
return;
|
||||
if (face->s1->y < 0 && face->s2->y < 0 && face->s3->y < 0)
|
||||
return;
|
||||
if (face->s1->y >= render_height && face->s2->y >= render_height && face->s3->y >= render_height)
|
||||
return;
|
||||
if (face->s1->z <= 0 && face->s2->z <= 0 && face->s3->z <= 0)
|
||||
return;
|
||||
|
||||
line cotes[3];
|
||||
line_set(&cotes[0], face->s1, face->s2);
|
||||
line_set(&cotes[1], face->s1, face->s3);
|
||||
line_set(&cotes[2], face->s2, face->s3);
|
||||
|
||||
if (cotes[0].no_line || cotes[1].no_line || cotes[2].no_line)
|
||||
return;
|
||||
|
||||
const int32_t ymin = max(min(face->s1->y, min(face->s2->y, face->s3->y)), 0);
|
||||
const int32_t ymax = min(max(face->s1->y, max(face->s2->y, face->s3->y)), 63);
|
||||
|
||||
const int32_t xAB = face->s2->x - face->s1->x, yAB = face->s2->y - face->s1->y, zAB=face->s2->z-face->s1->z;
|
||||
const int32_t xAC = face->s3->x - face->s1->x, yAC = face->s3->y - face->s1->y, zAC=face->s3->z-face->s1->z;
|
||||
const int32_t diviseur_commun = (xAB * yAC - yAB * xAC);
|
||||
|
||||
const int32_t fact_1= (32768 * yAC) / diviseur_commun, fact_2 = (32768 * xAC) / diviseur_commun;
|
||||
const int32_t fact_3= (32768 * xAB) / diviseur_commun, fact_4 = (32768 * yAB) / diviseur_commun;
|
||||
|
||||
for (int32_t y = ymin; y <= ymax; y++)
|
||||
{
|
||||
// xmin and xmax determination
|
||||
int32_t tx1,tx2;
|
||||
|
||||
for (int t=0;t<3;t++)
|
||||
{
|
||||
if (line_get_x(y,&cotes[t],&tx1))
|
||||
break;
|
||||
}
|
||||
for (int32_t t=0;t<3;t++)
|
||||
{
|
||||
if (line_get_x(y,&cotes[t],&tx2)&&tx1!=tx2)
|
||||
break;
|
||||
}
|
||||
|
||||
const int32_t txmin=max(min(tx1,tx2),0), txmax=min(max(tx1,tx2),127);
|
||||
|
||||
for (int32_t x=txmin; x<=txmax; x++)
|
||||
{
|
||||
double vx, vy, z;
|
||||
const double xcalc = x - face->s1->x, ycalc = y - face->s1->y;
|
||||
// calcul de vx, vy
|
||||
vx=(xcalc*fact_1-ycalc*fact_2); // 0 <vx< 10_000
|
||||
vy=(ycalc*fact_3-xcalc*fact_4); // idem
|
||||
z=face->s1->z + (vx * zAB + vy * zAC) / 32768;
|
||||
vx /= 32768;
|
||||
vy /= 32768;
|
||||
|
||||
vx /= (double) face->s2->z / ((1 - vx) / face->s1->z + vx / (double) face->s2->z);
|
||||
vy /= (double) face->s3->z / ((1 - vy) / face->s1->z + vy / (double) face->s3->z);
|
||||
|
||||
// Affichage du point
|
||||
const uint8_t color = bitmap_get_pixel_r(face->texture, 8*vx, 8*vy);
|
||||
|
||||
if (color)
|
||||
if (render_zbuffer_set_px(x,y,z))
|
||||
dpixel(x, y, 3 * (color % 2)); // 3* means cast to black and white, and vx,and vy casted between 0 and 7
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue