Video API vaguely similar to OpenGL. More...

#include <nds/arm9/cache.h>
#include <nds/arm9/dynamicArray.h>
#include <nds/arm9/math.h>
#include <nds/arm9/sassert.h>
#include <nds/arm9/trig_lut.h>
#include <nds/arm9/video.h>
#include <nds/dma.h>
#include <nds/ndstypes.h>

Data Structures
struct	GLvector
	Holds a vector. More...

struct	m3x3
	Holds a 3x3 matrix. More...

struct	m4x3
	Holds a 4x3 matrix. More...

struct	m4x4
	Holds a 4x4 matrix. More...

Macros
#define	f32tot16(n) ((t16)(n >> 8))
	Convert f32 to t16.

#define	f32tov10(n) ((v10)((n) >> 3))
	Convert f32 to v10.

#define	f32tov16(n) (n)
	Convert f32 to v16.

#define	FIFO_BEGIN REG2ID(GFX_BEGIN)
	Starts a polygon vertex list.

#define	FIFO_CLEAR_COLOR REG2ID(GFX_CLEAR_COLOR)
	Clear color of the rear plane.

#define	FIFO_CLEAR_DEPTH REG2ID(GFX_CLEAR_DEPTH)
	Depth of the rear plane.

#define	FIFO_COLOR REG2ID(GFX_COLOR)
	Direct vertex color.

#define	FIFO_COMMAND_PACK(c1, c2, c3, c4) (((c4) << 24) \| ((c3) << 16) \| ((c2) << 8) \| (c1))
	Packs four packed commands into a 32bit command for sending to the GFX FIFO.

#define	FIFO_DIFFUSE_AMBIENT REG2ID(GFX_DIFFUSE_AMBIENT)
	Diffuse and ambient material properties for the following vertices.

#define	FIFO_END REG2ID(GFX_END)
	Ends a polygon vertex list.

#define	FIFO_FLUSH REG2ID(GFX_FLUSH)
	Flush the 3D context.

#define	FIFO_LIGHT_COLOR REG2ID(GFX_LIGHT_COLOR)
	Color for a light source.

#define	FIFO_LIGHT_VECTOR REG2ID(GFX_LIGHT_VECTOR)
	Direction of a light source.

#define	FIFO_NOP REG2ID(GFX_FIFO)
	Nothing (padding)

#define	FIFO_NORMAL REG2ID(GFX_NORMAL)
	Normal for following vertices.

#define	FIFO_PAL_FORMAT REG2ID(GFX_PAL_FORMAT)
	Texture palette attributes.

#define	FIFO_POLY_FORMAT REG2ID(GFX_POLY_FORMAT)
	Polygon attributes.

#define	FIFO_SHININESS REG2ID(GFX_SHININESS)
	Shininess table to be used for the following vertices.

#define	FIFO_SPECULAR_EMISSION REG2ID(GFX_SPECULAR_EMISSION)
	Specular and emmissive material properties for the following vertices.

#define	FIFO_STATUS REG2ID(GFX_STATUS)
	Geometry engine status register.

#define	FIFO_TEX_COORD REG2ID(GFX_TEX_COORD)
	Texture coordinate.

#define	FIFO_TEX_FORMAT REG2ID(GFX_TEX_FORMAT)
	Texture format.

#define	FIFO_VERTEX10 REG2ID(GFX_VERTEX10)
	Vertex with 3 10bit paramaters.

#define	FIFO_VERTEX16 REG2ID(GFX_VERTEX16)
	Vertex with 3 16bit paramaters.

#define	FIFO_VERTEX_XY REG2ID(GFX_VERTEX_XY)
	Vertex that uses the last Z.

#define	FIFO_VERTEX_XZ REG2ID(GFX_VERTEX_XZ)
	Vertex that uses the last Y.

#define	FIFO_VERTEX_YZ REG2ID(GFX_VERTEX_YZ)
	Vertex that uses the last X.

#define	FIFO_VIEWPORT REG2ID(GFX_VIEWPORT)
	Set the viewport.

#define	floatto12d3(n) ((fixed12d3)((n) * (1 << 3)))
	Convert float to fixed12d3.

#define	floattot16(n) ((t16)((n) * (1 << 4)))
	Convert float to t16.

#define	floattov10(n) (((n) > 0.998) ? 0x1FF : ((v10)((n) * (1 << 9))))
	Convert float to v10.

#define	floattov16(n) ((v16)((n) * (1 << 12)))
	Convert float to v16.

#define	GL_MAX_DEPTH 0x7FFF
	The maximum value for the type fixed12d3.

#define	intto12d3(n) ((n) << 3)
	Convert int to fixed12d3.

#define	inttot16(n) ((n) << 4)
	Convert int to t16.

#define	inttov10(n) ((n) << 9)
	Convert int to v10.

#define	inttov16(n) ((n) << 12)
	Convert int to v16.

#define	NORMAL_PACK(x, y, z) (u32)(((x) & 0x3FF) \| (((y) & 0x3FF) << 10) \| ((z) << 20))
	Pack 3 v10 normals into a 32 bit value.

#define	REG2ID(r) (u8)((((u32)(&(r))) - 0x04000400) >> 2)
	Converts a GFX command for use in a packed command list.

#define	t16toint(n) ((n) >> 4)
	Convert t16 to int.

#define	TEXTURE_PACK(u, v) (((u) & 0xFFFF) \| ((v) << 16))
	Pack two t16 texture coordinate values into a 32 bit value.

#define	v10toint(n) ((n) >> 9)
	Convert v10 to int.

#define	v16toint(n) ((n) >> 12)
	Convert v16 to int.

#define	VERTEX_PACK(x, y) (u32)(((x) & 0xFFFF) \| ((y) << 16))
	Pack two v16 values into one 32 bit value.

Typedefs
typedef uint16_t	fixed12d3
	Depth in 12.3 fixed point. More...

typedef struct GLvector	GLvector
	Holds a vector. More...

typedef struct m3x3	m3x3
	Holds a 3x3 matrix.

typedef struct m4x3	m4x3
	Holds a 4x3 matrix.

typedef struct m4x4	m4x4
	Holds a 4x4 matrix.

typedef unsigned short	rgb
	Holds a color value (1 bit alpha, 5 bits red, 5 bits green, 5 bits blue).

typedef short	t16
	Texture coordinate 12.4 in fixed point.

typedef short int	v10
	Normal component in 0.10 fixed point, not used for 10 bit vertices.

typedef short int	v16
	Vertex coordinate in 4.12 fixed point.

Enumerations
enum	DISP3DCNT_ENUM { GL_TEXTURE_2D = (1 << 0) , GL_TOON_HIGHLIGHT = (1 << 1) , GL_ALPHA_TEST = (1 << 2) , GL_BLEND = (1 << 3) , GL_ANTIALIAS = (1 << 4) , GL_OUTLINE = (1 << 5) , GL_FOG_ONLY_ALPHA = (1 << 6) , GL_FOG = (1 << 7) , GL_COLOR_UNDERFLOW = (1 << 12) , GL_POLY_OVERFLOW = (1 << 13) , GL_CLEAR_BMP = (1 << 14) }
	3D display control register bits. More...

enum	GL_GET_ENUM { GL_GET_VERTEX_RAM_COUNT , GL_GET_POLYGON_RAM_COUNT , GL_GET_MATRIX_VECTOR , GL_GET_MATRIX_POSITION , GL_GET_MATRIX_PROJECTION , GL_GET_MATRIX_CLIP , GL_GET_TEXTURE_WIDTH , GL_GET_TEXTURE_HEIGHT }
	Enums for reading information from the geometry engine. More...

enum	GL_GLBEGIN_ENUM { GL_TRIANGLES = 0 , GL_QUADS = 1 , GL_TRIANGLE_STRIP = 2 , GL_QUAD_STRIP = 3 , GL_TRIANGLE = 0 , GL_QUAD = 1 }
	Polygon drawing modes. More...

enum	GL_MATERIALS_ENUM { GL_AMBIENT = 0x01 , GL_DIFFUSE = 0x02 , GL_AMBIENT_AND_DIFFUSE = 0x03 , GL_SPECULAR = 0x04 , GL_SHININESS = 0x08 , GL_EMISSION = 0x10 }
	Material types. More...

enum	GL_MATRIX_MODE_ENUM { GL_PROJECTION = 0 , GL_POSITION = 1 , GL_MODELVIEW = 2 , GL_TEXTURE = 3 }
	Matrix modes. More...

enum	GL_POLY_FORMAT_ENUM { POLY_FORMAT_LIGHT0 = (1 << 0) , POLY_FORMAT_LIGHT1 = (1 << 1) , POLY_FORMAT_LIGHT2 = (1 << 2) , POLY_FORMAT_LIGHT3 = (1 << 3) , POLY_MODULATION = (0 << 4) , POLY_DECAL = (1 << 4) , POLY_TOON_HIGHLIGHT = (2 << 4) , POLY_SHADOW = (3 << 4) , POLY_CULL_FRONT = (1 << 6) , POLY_CULL_BACK = (2 << 6) , POLY_CULL_NONE = (3 << 6) , POLY_TRANS_KEEP_DEPTH = (0 << 11) , POLY_TRANS_SET_DEPTH = (1 << 11) , POLY_HIDE_FAR_POLYS = (0 << 12) , POLY_RENDER_FAR_POLYS = (1 << 12) , POLY_HIDE_1DOT_POLYS = (0 << 13) , POLY_RENDER_1DOT_POLYS = (1 << 13) , POLY_DEPTH_TEST_LESS = (0 << 14) , POLY_DEPTH_TEST_EQUAL = (1 << 14) , POLY_FOG = (1 << 15) }
	Polygon rendering attributes. More...

enum	GL_TEXTURE_PALETTE_PARAM_ENUM { GL_COLOR_TABLE_FORMAT_EXT = 0 , GL_COLOR_TABLE_WIDTH_EXT = 1 }
	Enums for texture palette data retrieval. More...

enum	GL_TEXTURE_PARAM_ENUM { GL_TEXTURE_WRAP_S = (1 << 16) , GL_TEXTURE_WRAP_T = (1 << 17) , GL_TEXTURE_FLIP_S = (1 << 18) , GL_TEXTURE_FLIP_T = (1 << 19) , GL_TEXTURE_COLOR0_TRANSPARENT = (1 << 29) , TEXGEN_OFF = (0 << 30) , TEXGEN_TEXCOORD = (1 << 30) , TEXGEN_NORMAL = (int)(2U << 30) , TEXGEN_POSITION = (int)(3U << 30) }
	Texture parameters such as texture wrapping and texture coord wrapping. More...

enum	GL_TEXTURE_SIZE_ENUM { TEXTURE_SIZE_INVALID = -1 , TEXTURE_SIZE_8 = 0 , TEXTURE_SIZE_16 = 1 , TEXTURE_SIZE_32 = 2 , TEXTURE_SIZE_64 = 3 , TEXTURE_SIZE_128 = 4 , TEXTURE_SIZE_256 = 5 , TEXTURE_SIZE_512 = 6 , TEXTURE_SIZE_1024 = 7 }
	Possibles size of a texture (horizontal and vertical). More...

enum	GL_TEXTURE_TYPE_ENUM { GL_NOTEXTURE = 0 , GL_RGB32_A3 = 1 , GL_RGB4 = 2 , GL_RGB16 = 3 , GL_RGB256 = 4 , GL_COMPRESSED = 5 , GL_RGB8_A5 = 6 , GL_RGBA = 7 , GL_RGB = 8 }
	Texture formats. More...

enum	GLFLUSH_ENUM { GL_TRANS_MANUALSORT = (1 << 0) , GL_WBUFFERING = (1 << 1) }
	Arguments for glFlush(). More...

Functions
static void	glAlphaFunc (int alphaThreshold)
	Set the minimum alpha value that will be displayed. More...

void	glAssignColorTable (int target, int name)
	glAssignColorTable sets the active texture with a palette set with another texture. More...

static void	glBegin (GL_GLBEGIN_ENUM mode)
	Starts a polygon group. More...

void	glBindTexture (int target, int name)
	glBindTexure sets the current named texture to the active texture. More...

void	glCallList (const void *list)
	Sends a packed list of commands into the graphics FIFO via asyncronous DMA. More...

static void	glClearColor (uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
	Sets the color of the rear-plane (a.k.a clear color/plane) More...

static void	glClearDepth (fixed12d3 depth)
	Reset the depth buffer to this value. More...

static void	glClearPolyID (uint8_t ID)
	Sets the polygon ID of the rear-plane (a.k.a. clear color/plane) More...

static void	glColor (rgb color)
	Set the color for the following vertices. More...

static void	glColor3b (uint8_t red, uint8_t green, uint8_t blue)
	Set the color for the following vertices. More...

static void	glColor3f (float r, float g, float b)
	Specify a color for following vertices. More...

int	glColorSubTableEXT (int target, int start, int count, int empty1, int empty2, const void *data)
	Loads a 15-bit color format palette into a specific spot in a currently bound texture's existing palette. More...

int	glColorTableEXT (int target, int empty1, uint16_t width, int empty2, int empty3, const void *table)
	Loads a 15-bit color palette into palette memory, and sets it to the currently bound texture. More...

static void	glCutoffDepth (fixed12d3 wVal)
	Stop the drawing of polygons that are a certain distance from the camera. More...

int	glDeleteTextures (int n, int *names)
	Deletes the specified number of textures (and associated palettes). More...

static void	glDisable (int bits)
	Disables various GL states (blend, alpha test, etc..). More...

static void	glEnable (int bits)
	Enables various GL states (blend, alpha test, etc..). More...

static void	glEnd (void)
	Ends a polygon group.

static void	glFlush (u32 mode)
	Waits for a vertical blank (like swiWaitForVBlank) and swaps the buffers. More...

static void	glFogColor (uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
	Sets the fog color. More...

static void	glFogDensity (int index, int density)
	Sets the fog density at a given index. More...

static void	glFogOffset (int offset)
	Sets the FOG_OFFSET value. More...

static void	glFogShift (int shift)
	Sets the FOG_SHIFT value. More...

static void	glFrustum (float left, float right, float bottom, float top, float near, float far)
	Specifies the viewing frustum for the projection matrix (floating point version). More...

void	glFrustumf32 (int left, int right, int bottom, int top, int near, int far)
	Specifies the viewing frustum for the projection matrix (fixed point version). More...

int	glGenTextures (int n, int *names)
	Creates room for the specified number of textures. More...

int	glGetColorTableEXT (int target, int empty1, int empty2, void *table)
	Retrieves a 15-bit color format palette from the palette memory of the currently bound texture. More...

void	glGetColorTableParameterEXT (int target, int pname, int *params)
	glGetColorTableParameterEXT retrieves information pertaining to the currently bound texture's palette. More...

void *	glGetColorTablePointer (int name)
	Returns the address alocated to the palette of the texture named by name. More...

void	glGetFixed (const GL_GET_ENUM param, int *f)
	Gets fixed format of state variables. More...

void	glGetInt (GL_GET_ENUM param, int *i)
	Grabs integer state variables from OpenGL. More...

u32	glGetTexParameter (void)
	Returns the active texture parameter. More...

void *	glGetTextureExtPointer (int name)
	Returns address allocated to the extra compressed texure data named by name. More...

void *	glGetTexturePointer (int name)
	Returns the address allocated to the texure named by name. More...

static int	glInit (void)
	Initializes the GL state machine (must be called once before using GL calls). More...

static void	glLight (int id, rgb color, v10 x, v10 y, v10 z)
	Set up a light. More...

static void	glLoadIdentity (void)
	Loads an identity matrix to the current matrix, same as glIdentity().

static void	glLoadMatrix4x3 (const m4x3 *m)
	Loads a 4x3 matrix into the current matrix. More...

static void	glLoadMatrix4x4 (const m4x4 *m)
	Loads a 4x4 matrix into the current matrix. More...

int	glLockVRAMBank (uint16_t *addr)
	Locks a designated VRAM bank to prevent consideration of the bank when allocating textures. More...

void	glMaterialf (GL_MATERIALS_ENUM mode, rgb color)
	Specify the material properties to be used in rendering lit polygons. More...

static void	glMaterialShinyness (void)
	The DS uses a table for shininess. This generates one.

static void	glMatrixMode (GL_MATRIX_MODE_ENUM mode)
	Change the current matrix mode. More...

static void	glMultMatrix3x3 (const m3x3 *m)
	Multiplies the current matrix by a 3x3 matrix. More...

static void	glMultMatrix4x3 (const m4x3 *m)
	Multiplies the current matrix by a 4x3 matrix. More...

static void	glMultMatrix4x4 (const m4x4 *m)
	Multiplies the current matrix by a 4x4 matrix. More...

static void	glNormal (u32 normal)
	The normal to use for the following vertices. More...

static void	glNormal3f (float x, float y, float z)
	The normal to use for following vertices. More...

static void	glOrtho (float left, float right, float bottom, float top, float zNear, float zFar)
	Multiplies the current matrix into ortho graphic mode. More...

void	glOrthof32 (int left, int right, int bottom, int top, int zNear, int zFar)
	Multiplies the current matrix into orthographic mode. More...

static void	glPolyFmt (u32 params)
	Set the parameters for polygons rendered on the current frame. More...

static void	glPopMatrix (int num)
	Pops the specified number of matrices from the stack. More...

static void	glPushMatrix (void)
	Pushes the current matrix to the stack.

void	glResetMatrixStack (void)
	Resets matrix stack to top level.

void	glResetTextures (void)
	Resets the GL texture state freeing all texture and texture palette memory.

static void	glRestoreMatrix (int index)
	Restores the current matrix from a location in the stack. More...

static void	glRotatef (float angle, float x, float y, float z)
	Rotate about an arbitrary axis. More...

static void	glRotatef32 (float angle, int x, int y, int z)
	Rotate on an arbitrary axis. More...

void	glRotatef32i (int angle, int32_t x, int32_t y, int32_t z)
	Rotates the model view matrix by angle about the specified unit vector. More...

static void	glRotateX (float angle)
	Rotates the current modelview matrix by angle degrees around the X axis. More...

static void	glRotateXi (int angle)
	Rotates the current modelview matrix by angle around the X axis. More...

static void	glRotateY (float angle)
	Rotates the current modelview matrix by angle degrees around the Y axis. More...

static void	glRotateYi (int angle)
	Rotates the current modelview matrix by angle around the Y axis. More...

static void	glRotateZ (float angle)
	Rotates the current modelview matrix by angle degrees around the Z axis. More...

static void	glRotateZi (int angle)
	Rotates the current modelview matrix by angle around the Z axis. More...

static void	glScalef (float x, float y, float z)
	Multiply the current matrix by a scale matrix. More...

static void	glScalef32 (int x, int y, int z)
	Multiply the current matrix by a scale matrix. More...

static void	glScalev (const GLvector *v)
	Multiply the current matrix by a scale matrix. More...

static void	glSetOutlineColor (int id, rgb color)
	Specifies an edge color for polygons. More...

static void	glSetToonTable (const uint16_t *table)
	Loads a toon table. More...

static void	glSetToonTableRange (int start, int end, rgb color)
	Sets a range of colors on the toon table. More...

static void	glStoreMatrix (int index)
	Place the current matrix into the stack at the specified location. More...

void	glTexCoord2f (float s, float t)
	Sets texture coordinates for following vertices. More...

void	glTexCoord2f32 (int32_t u, int32_t v)
	Sets texture coordinates for following vertices (fixed point version). More...

static void	glTexCoord2i (t16 u, t16 v)
	Sets texture coordinates for the following vertices. More...

static void	glTexCoord2t16 (t16 u, t16 v)
	Sets texture coordinates for the following vertices. More...

int	glTexImage2D (int target, int empty1, GL_TEXTURE_TYPE_ENUM type, int sizeX, int sizeY, int empty2, int param, const void *texture)
	Loads a 2D texture into texture memory and sets the currently bound texture ID to the attributes specified. More...

void	glTexParameter (int target, int param)
	Set parameters for the current texture. More...

static enum GL_TEXTURE_SIZE_ENUM	glTexSizeToEnum (int size)
	This converts a size in pixels to a GL_TEXTURE_SIZE_ENUM value. More...

static void	glTranslatef (float x, float y, float z)
	Multiply the current matrix by a translation matrix. More...

static void	glTranslatef32 (int x, int y, int z)
	Multiply the current matrix by a translation matrix. More...

static void	glTranslatev (const GLvector *v)
	Multiply the current matrix by a translation matrix. More...

static void	gluLookAt (float eyex, float eyey, float eyez, float lookAtx, float lookAty, float lookAtz, float upx, float upy, float upz)
	Places the camera at the specified location and orientation (floating point version). More...

void	gluLookAtf32 (int eyex, int eyey, int eyez, int lookAtx, int lookAty, int lookAtz, int upx, int upy, int upz)
	Places the camera at the specified location and orientation (fixed point version). More...

int	glUnlockVRAMBank (uint16_t *addr)
	Unlocks a designated VRAM bank to allow consideration of the bank when allocating textures. More...

static void	gluPerspective (float fovy, float aspect, float zNear, float zFar)
	Utility function that sets up the projection matrix (floating point version) More...

void	gluPerspectivef32 (int fovy, int aspect, int zNear, int zFar)
	Utility function which sets up the projection matrix (fixed point version). More...

void	gluPickMatrix (int x, int y, int width, int height, const int viewport[4])
	Utility function which generates a picking matrix for selection. More...

static void	glVertex2v16 (v16 x, v16 y)
	Specifies a new vertex by its X and Y components. More...

static void	glVertex3f (float x, float y, float z)
	Specifies a vertex location. More...

static void	glVertex3v16 (v16 x, v16 y, v16 z)
	Specifies a vertex. More...

static void	glViewport (uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2)
	Specify the viewport for following drawing. More...

static u32	POLY_ALPHA (u32 n)
	Used in glPolyFmt() to set the alpha level for the following polygons. More...

static u32	POLY_ID (u32 n)
	Used in glPolyFmt() to set the polygon ID for the following polygons. More...

Detailed Description

Video API vaguely similar to OpenGL.

For more information about the 3D hardware of the NDS, check GBATEK: https://www.problemkaputt.de/gbatek.htm#ds3dvideo

Typedef Documentation

◆ fixed12d3

typedef uint16_t fixed12d3

Depth in 12.3 fixed point.

Related functions: glClearDepth(), glCutoffDepth()

◆ GLvector

typedef struct GLvector GLvector

Holds a vector.

Related functions: glScalev(), glTranslatev()

Enumeration Type Documentation

◆ DISP3DCNT_ENUM

enum DISP3DCNT_ENUM

3D display control register bits.

Related functions: glEnable(), glDisable(), glInit()

Enumerator
GL_TEXTURE_2D	Enable/disable textures on the geometry engine.
GL_TOON_HIGHLIGHT	Enable = Highlight shading; disable = Toon shading.
GL_ALPHA_TEST	Whether to use the alpha threshold set in glAlphaFunc()
GL_BLEND	Enable/disable alpha blending.
GL_ANTIALIAS	Enable/disable edge antialiasing. Antialiasing is applied to polygon edges, to make the edges look smoother. There is no antialiasing applied inside polygons or at intersections between two polygons. Antialiasing also doesn't apply to translucent pixels. Antialiasing interferes with wireframe polygons, lines, points, and edge marking.
GL_OUTLINE	Enable/disable edge coloring; the high 3bits of the polygon ID determine the color; glSetOutlineColor() sets the available colors.
GL_FOG_ONLY_ALPHA	If it's enabled, only the fog alpha value is used, not the color. If it's disabled, both fog color and alpha are used.
GL_FOG	Enables/disables fog.
GL_COLOR_UNDERFLOW	Enabled = color buffer underflow, setting it to 1 resets the overflow flag; disabled = no color buffer overflow.
GL_POLY_OVERFLOW	Enabled = polygon/vertex buffer overflow, setting it to 1 resets the overflow flag; disabled = no polygon/vertex buffer overflow.
GL_CLEAR_BMP	Enable: rear/clear plane is in BMP mode; disable = rear/color plane is in clear mode.

◆ GL_GET_ENUM

enum GL_GET_ENUM

Enums for reading information from the geometry engine.

Related functions: glGetInt(), glGetFixed()

Enumerator
GL_GET_VERTEX_RAM_COUNT	Returns a count of vertexes currently stored in hardware vertex ram. Use glGetInt()
GL_GET_POLYGON_RAM_COUNT	Returns a count of polygons currently stored in hardware polygon ram. Use glGetInt()
GL_GET_MATRIX_VECTOR	Returns the current 3x3 directional vector matrix. Use glGetFixed()
GL_GET_MATRIX_POSITION	Returns the current 4x4 position matrix. Use glGetFixed()
GL_GET_MATRIX_PROJECTION	Returns the current 4x4 projection matrix. Use glGetFixed()
GL_GET_MATRIX_CLIP	Returns the current 4x4 clip matrix. Use glGetFixed()
GL_GET_TEXTURE_WIDTH	Returns the width of the currently bound texture. Use glGetInt()
GL_GET_TEXTURE_HEIGHT	Returns the height of the currently bound texture. Use glGetInt()

◆ GL_GLBEGIN_ENUM

enum GL_GLBEGIN_ENUM

Polygon drawing modes.

Related functions: glBegin()

Enumerator
GL_TRIANGLES	Draw triangles with each 3 vertices defining a triangle.
GL_QUADS	Draw quads with each 4 vertices defining a quad.
GL_TRIANGLE_STRIP	Draw triangles with the first triangle defined by 3 vertices and each additional triangle being defined by one additional vertex.
GL_QUAD_STRIP	Draw quads with the first quad being defined by 4 vertices and each additional triangle being defined by 2 vertices.
GL_TRIANGLE	Same as GL_TRIANGLES, old non-OpenGL version.
GL_QUAD	Same as GL_QUADS, old non-OpenGL version.

◆ GL_MATERIALS_ENUM

enum GL_MATERIALS_ENUM

Material types.

Related functions: glMaterialf()

Enumerator
GL_AMBIENT	Ambient color for the material (color when the normal is not facing the light).
GL_DIFFUSE	Diffuse color for the material (color when the normal is facing the light).
GL_AMBIENT_AND_DIFFUSE	Ambient and diffuse colors for the material at the same time.
GL_SPECULAR	Specular color for the material. The glossy (highlight) color of the polygon.
GL_SHININESS	Shininess color for the material. The color that shines back to the user.
GL_EMISSION	Emission color for the material. Color independent of normals and lights.

◆ GL_MATRIX_MODE_ENUM

enum GL_MATRIX_MODE_ENUM

Matrix modes.

Related functions: glMatrixMode()

Enumerator
GL_PROJECTION	Projection matrix.
GL_POSITION	Position matrix.
GL_MODELVIEW	Modelview matrix.
GL_TEXTURE	Texture matrix.

◆ GL_POLY_FORMAT_ENUM

enum GL_POLY_FORMAT_ENUM

Polygon rendering attributes.

Related functions: glPolyFmt(), glInit(), POLY_ALPHA(), POLY_ID()

Enumerator
POLY_FORMAT_LIGHT0	Enable light number 0.
POLY_FORMAT_LIGHT1	Enable light number 1.
POLY_FORMAT_LIGHT2	Enable light number 2.
POLY_FORMAT_LIGHT3	Enable light number 3.
POLY_MODULATION	Enable modulation shading mode (default)
POLY_DECAL	Enable decal shading.
POLY_TOON_HIGHLIGHT	Enable toon/highlight shading mode.
POLY_SHADOW	Enable shadow shading.
POLY_CULL_FRONT	Cull front polygons.
POLY_CULL_BACK	Cull rear polygons.
POLY_CULL_NONE	Don't cull any polygons.
POLY_TRANS_KEEP_DEPTH	Don't update depth buffer when drawing translucent polygons.
POLY_TRANS_SET_DEPTH	Update depth buffer when drawing translucent polygons.
POLY_HIDE_FAR_POLYS	Hide polygons that intersect with far plane.
POLY_RENDER_FAR_POLYS	Render polygons that intersect with far plane.
POLY_HIDE_1DOT_POLYS	Hide 1-dot polygons behind GFX_CUTOFF_DEPTH.
POLY_RENDER_1DOT_POLYS	Draw 1-dot polygons behind GFX_CUTOFF_DEPTH.
POLY_DEPTH_TEST_LESS	Draw polygons with a lower depth than the depth buffer.
POLY_DEPTH_TEST_EQUAL	Draw polygons with the same depth of the depth buffer.
POLY_FOG	Enable fog for this polygon.

◆ GL_TEXTURE_PALETTE_PARAM_ENUM

enum GL_TEXTURE_PALETTE_PARAM_ENUM

Enums for texture palette data retrieval.

Related functions: glGetColorTableParameterEXT()

Enumerator
GL_COLOR_TABLE_FORMAT_EXT	Retrieve the palette address in memory.
GL_COLOR_TABLE_WIDTH_EXT	Retrieve the size of the palette.

◆ GL_TEXTURE_PARAM_ENUM

enum GL_TEXTURE_PARAM_ENUM

Texture parameters such as texture wrapping and texture coord wrapping.

Related functions: glTexImage2D(), glTexParameter()

Enumerator
GL_TEXTURE_WRAP_S	Wrap (repeat) texture on S axis.
GL_TEXTURE_WRAP_T	Wrap (repeat) texture on T axis.
GL_TEXTURE_FLIP_S	Flip texture on S axis when wrapping.
GL_TEXTURE_FLIP_T	Flip texture on T axis when wrapping.
GL_TEXTURE_COLOR0_TRANSPARENT	Interpret color 0 as clear (same as old GL_TEXTURE_ALPHA_MASK).
TEXGEN_OFF	Use unmodified texture coordinates.
TEXGEN_TEXCOORD	Multiply texture coordinates by the texture matrix.
TEXGEN_NORMAL	Set texture coordinates equal to normal * texture matrix, used for spherical reflection mapping.
TEXGEN_POSITION	Set texture coordinates equal to vertex * texture matrix.

◆ GL_TEXTURE_SIZE_ENUM

enum GL_TEXTURE_SIZE_ENUM

Possibles size of a texture (horizontal and vertical).

Related functions: glTexImage2D(), glTexParameter()

Enumerator
TEXTURE_SIZE_INVALID	An invalid number of texels.
TEXTURE_SIZE_8	8 texels
TEXTURE_SIZE_16	16 texels
TEXTURE_SIZE_32	32 texels
TEXTURE_SIZE_64	64 texels
TEXTURE_SIZE_128	128 texels
TEXTURE_SIZE_256	256 texels
TEXTURE_SIZE_512	512 texels
TEXTURE_SIZE_1024	1024 texels

◆ GL_TEXTURE_TYPE_ENUM

enum GL_TEXTURE_TYPE_ENUM

Texture formats.

Related functions: glTexImage2D(), glTexParameter()

Enumerator
GL_NOTEXTURE	No texture is used - useful for making palettes.
GL_RGB32_A3	32 color palette, 3 bits of alpha
GL_RGB4	4 color palette
GL_RGB16	16 color palette
GL_RGB256	256 color palette
GL_COMPRESSED	Compressed texture.
GL_RGB8_A5	8 color palette, 5 bits of alpha
GL_RGBA	15 bit direct color, 1 bit of alpha
GL_RGB	15 bit direct color. Converted to GL_RGBA internally, which causes a performance penalty when using glTexImage2D(). This format isn't recommended, use GL_RGBA instead.

◆ GLFLUSH_ENUM

enum GLFLUSH_ENUM

Arguments for glFlush().

Related functions: glEnable(), glDisable(), glInit()

Enumerator
GL_TRANS_MANUALSORT	Enable manual sorting of translucent polygons, otherwise uses Y-sorting.
GL_WBUFFERING	Enable W depth buffering of vertices, otherwise uses Z depth buffering.

Function Documentation

◆ glAlphaFunc()

static void glAlphaFunc ( int alphaThreshold )

inlinestatic

Set the minimum alpha value that will be displayed.

Polygons with a lower alpha value won't be displayed.

Parameters

alphaThreshold Minimum alpha value that will be used (0 - 15).

◆ glAssignColorTable()

void glAssignColorTable	(	int	target,
		int	name
	)

glAssignColorTable sets the active texture with a palette set with another texture.

Parameters

target	Ignored, only here for OpenGL compatibility.
name	The name(int value) of the texture to load a palette from.

◆ glBegin()

static void glBegin ( GL_GLBEGIN_ENUM mode )

inlinestatic

Starts a polygon group.

Parameters

mode	the draw mode for the polygon.

◆ glBindTexture()

void glBindTexture	(	int	target,
		int	name
	)

glBindTexure sets the current named texture to the active texture.

The target is ignored as all DS textures are 2D.

Parameters

target	Ignored, only here for OpenGL compatibility.
name	The name (int value) to set to the current texture.

◆ glCallList()

void glCallList ( const void * list )

Sends a packed list of commands into the graphics FIFO via asyncronous DMA.

The first 32 bits is the length of the packed command list, followed by the packed list.

Parameters

list	Pointer to the packed list.

◆ glClearColor()

static void glClearColor	(	uint8_t	red,
		uint8_t	green,
		uint8_t	blue,
		uint8_t	alpha
	)

inlinestatic

Sets the color of the rear-plane (a.k.a clear color/plane)

Parameters

red	Red component (0 - 31).
green	Green component (0 - 31).
blue	Blue component (0 - 31).
alpha	Alpha from 0 (clear) to 31 (opaque).

◆ glClearDepth()

static void glClearDepth ( fixed12d3 depth )

inlinestatic

Reset the depth buffer to this value.

Generally set this to GL_MAX_DEPTH.

Parameters

depth Distance from the camera. Generally set to GL_MAX_DEPTH.

◆ glClearPolyID()

static void glClearPolyID ( uint8_t ID )

inlinestatic

Sets the polygon ID of the rear-plane (a.k.a. clear color/plane)

Useful for antialiasing and edge coloring.

Parameters

ID	The polygon ID to give the rear-plane.

◆ glColor()

static void glColor ( rgb color )

inlinestatic

Set the color for the following vertices.

Parameters

color The 15 bit color value.

◆ glColor3b()

static void glColor3b	(	uint8_t	red,
		uint8_t	green,
		uint8_t	blue
	)

inlinestatic

Set the color for the following vertices.

Parameters

red	The red component (0 - 255). Bottom 3 bits ignored.
green	The green component (0 - 255). Bottom 3 bits ignored.
blue	The blue component (0 - 255). Bottom 3 bits ignored.

◆ glColor3f()

static void glColor3f	(	float	r,
		float	g,
		float	b
	)

inlinestatic

Specify a color for following vertices.

Parameters

r	The red component of the color.
g	The green component of the color.
b	The blue component of the color.

Warning: Float version! Please, use glColor3b() instead.

◆ glColorSubTableEXT()

int glColorSubTableEXT	(	int	target,
		int	start,
		int	count,
		int	empty1,
		int	empty2,
		const void *	data
	)

Loads a 15-bit color format palette into a specific spot in a currently bound texture's existing palette.

Parameters

target	Ignored, only here for OpenGL compatibility.
start	The starting index that new palette data will be written to.
count	The number of entries to write.
empty1	Ignored, only here for OpenGL compatibility.
empty2	Ignored, only here for OpenGL compatibility.
data	Pointer to the palette data to load.

Returns: 1 on success, 0 on failure.

◆ glColorTableEXT()

int glColorTableEXT	(	int	target,
		int	empty1,
		uint16_t	width,
		int	empty2,
		int	empty3,
		const void *	table
	)

Loads a 15-bit color palette into palette memory, and sets it to the currently bound texture.

It can also remove palettes.

Parameters

target	Ignored, only here for OpenGL compatibility.
empty1	Ignored, only here for OpenGL compatibility.
width	The length of the palette (if 0, the palette is removed from currently bound texture).
empty2	Ignored, only here for OpenGL compatibility.
empty3	Ignored, only here for OpenGL compatibility.
table	Pointer to the palette data to load (if NULL, the palette is removed from currently bound texture).

Returns: 1 on success, 0 on failure.

◆ glCutoffDepth()

static void glCutoffDepth ( fixed12d3 wVal )

inlinestatic

Stop the drawing of polygons that are a certain distance from the camera.

Polygons that are beyond this W-value (distance from camera) will not be drawn.

Parameters

wVal	Distance (15 bit value).

◆ glDeleteTextures()

int glDeleteTextures	(	int	n,
		int *	names
	)

Deletes the specified number of textures (and associated palettes).

Parameters

n	The number of textures to delete.
names	Pointer to the names array to empty.

Returns: 1 on success, 0 on failure.

◆ glDisable()

static void glDisable ( int bits )

inlinestatic

Disables various GL states (blend, alpha test, etc..).

Parameters

bits	Bit mask of desired attributes, enumerated in DISP3DCNT_ENUM.

◆ glEnable()

static void glEnable ( int bits )

inlinestatic

Enables various GL states (blend, alpha test, etc..).

Parameters

bits	Bit mask of desired attributes, enumerated in DISP3DCNT_ENUM.

◆ glFlush()

static void glFlush ( u32 mode )

inlinestatic

Waits for a vertical blank (like swiWaitForVBlank) and swaps the buffers.

It lets you specify some 3D options: enabling Y-sorting of translucent polygons and W-Buffering of all vertices.

Parameters

mode	Flags from GLFLUSH_ENUM.

◆ glFogColor()

static void glFogColor	(	uint8_t	red,
		uint8_t	green,
		uint8_t	blue,
		uint8_t	alpha
	)

inlinestatic

Sets the fog color.

Parameters

red	Red component (0 - 31).
green	Green component (0 - 31).
blue	Blue component (0 - 31).
alpha	From 0 (clear) to 31 (opaque).

◆ glFogDensity()

static void glFogDensity	(	int	index,
		int	density
	)

inlinestatic

Sets the fog density at a given index.

Parameters

index	Fog table index to operate on (0 to 31).
density	Fog density from 0 (none) to 127 (opaque).

◆ glFogOffset()

static void glFogOffset ( int offset )

inlinestatic

Sets the FOG_OFFSET value.

Fog begins at this depth with a density of FOG_TABLE[0].

Parameters

offset FOG_OFFSET value.

◆ glFogShift()

static void glFogShift ( int shift )

inlinestatic

Sets the FOG_SHIFT value.

Each entry of the fog table covers 0x400 >> FOG_SHIFT depth values.

Parameters

shift FOG_SHIFT value.

◆ glFrustum()

static void glFrustum	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	near,
		float	far
	)

inlinestatic

Specifies the viewing frustum for the projection matrix (floating point version).

Parameters

left	Left of a rectangle located at the near clipping plane.
right	Right of a rectangle located at the near clipping plane.
top	Top of a rectangle located at the near clipping plane.
bottom	Bottom of a rectangle located at the near clipping plane.
near	Location of a the near clipping plane (parallel to viewing window).
far	Location of a the far clipping plane (parallel to viewing window).

Warning: Float version! Please, use glFrustumf32() instead.

◆ glFrustumf32()

void glFrustumf32	(	int	left,
		int	right,
		int	bottom,
		int	top,
		int	near,
		int	far
	)

Specifies the viewing frustum for the projection matrix (fixed point version).

Parameters

left	Left of a rectangle located at the near clipping plane.
right	Right of a rectangle located at the near clipping plane.
top	top of a rectangle located at the near clipping plane.
bottom	Bottom of a rectangle located at the near clipping plane.
near	Location of a the near clipping plane (parallel to viewing window).
far	Location of a the far clipping plane (parallel to viewing window).

◆ glGenTextures()

int glGenTextures	(	int	n,
		int *	names
	)

Creates room for the specified number of textures.

Parameters

n	The number of textures to generate.
names	Pointer to the names array to fill.

Returns: 1 on success, 0 on failure.

◆ glGetColorTableEXT()

int glGetColorTableEXT	(	int	target,
		int	empty1,
		int	empty2,
		void *	table
	)

Retrieves a 15-bit color format palette from the palette memory of the currently bound texture.

Parameters

target	Ignored, only here for OpenGL compatibility.
empty1	Ignored, only here for OpenGL compatibility.
empty2	Ignored, only here for OpenGL compatibility.
table	Pointer where palette data will be written to.

Returns: 1 on success, 0 on failure.

◆ glGetColorTableParameterEXT()

void glGetColorTableParameterEXT	(	int	target,
		int	pname,
		int *	params
	)

glGetColorTableParameterEXT retrieves information pertaining to the currently bound texture's palette.

Parameters

target	Ignored, only here for OpenGL compatibility.
pname	A parameter of type GL_TEXTURE_PALETTE_PARAM_ENUM, used to read a specific attribute into params
params	The destination for the attribute to read into.

◆ glGetColorTablePointer()

void * glGetColorTablePointer ( int name )

Returns the address alocated to the palette of the texture named by name.

Parameters

name	The name of the texture to get a pointer to.

Returns: The address.

◆ glGetFixed()

void glGetFixed	(	const GL_GET_ENUM	param,
		int *	f
	)

Gets fixed format of state variables.

OpenGL's modelview matrix is handled on the DS with two matrices. The combination of the DS's position matrix and directional vector matrix holds the data that is in OpenGL's one modelview matrix. (a.k.a. modelview = postion and vector).

Parameters

param	The state variable to retrieve.
f	Pointer with room to hold the requested data.

◆ glGetInt()

void glGetInt	(	GL_GET_ENUM	param,
		int *	i
	)

Grabs integer state variables from OpenGL.

Parameters

param	The state variable to retrieve
i	Pointer with room to hold the requested data

◆ glGetTexParameter()

u32 glGetTexParameter ( void )

Returns the active texture parameter.

Returns: The parameter.

◆ glGetTextureExtPointer()

void * glGetTextureExtPointer ( int name )

Returns address allocated to the extra compressed texure data named by name.

Parameters

name	The name of the texture to get a pointer to.

Returns: The address, or NULL if there is no data or the format of the texture isn't GL_COMPRESSED.

◆ glGetTexturePointer()

void * glGetTexturePointer ( int name )

Returns the address allocated to the texure named by name.

Parameters

name	The name of the texture to get a pointer to.

Returns: The address.

◆ glInit()

static int glInit ( void )

inlinestatic

Initializes the GL state machine (must be called once before using GL calls).

Returns: 1 on success, 0 on failure

◆ glLight()

static void glLight	(	int	id,
		rgb	color,
		v10	x,
		v10	y,
		v10	z
	)

inlinestatic

Set up a light.

Only parallel light sources are supported on the DS. Also, the direction must be normalized.

Parameters

id	The number of the light to setup.
color	The color of the light.
x	X component of the lights directional vector.
y	Y component of the lights directional vector.
z	Z component of the lights directional vector.

◆ glLoadMatrix4x3()

static void glLoadMatrix4x3 ( const m4x3 * m )

inlinestatic

Loads a 4x3 matrix into the current matrix.

Parameters

m	Pointer to a 4x3 matrix.

◆ glLoadMatrix4x4()

static void glLoadMatrix4x4 ( const m4x4 * m )

inlinestatic

Loads a 4x4 matrix into the current matrix.

Parameters

m	Pointer to a 4x4 matrix.

◆ glLockVRAMBank()

int glLockVRAMBank ( uint16_t * addr )

Locks a designated VRAM bank to prevent consideration of the bank when allocating textures.

Parameters

addr	The base address of the VRAM bank.

Returns: 1 on success, 0 on failure.

◆ glMaterialf()

void glMaterialf	(	GL_MATERIALS_ENUM	mode,
		rgb	color
	)

Specify the material properties to be used in rendering lit polygons.

Parameters

mode	Which material property to change.
color	The color to set for that material property.

◆ glMatrixMode()

static void glMatrixMode ( GL_MATRIX_MODE_ENUM mode )

inlinestatic

Change the current matrix mode.

Parameters

mode	New mode for the matrix.

◆ glMultMatrix3x3()

static void glMultMatrix3x3 ( const m3x3 * m )

inlinestatic

Multiplies the current matrix by a 3x3 matrix.

Parameters

m	Pointer to a 3x3 matrix.

◆ glMultMatrix4x3()

static void glMultMatrix4x3 ( const m4x3 * m )

inlinestatic

Multiplies the current matrix by a 4x3 matrix.

Parameters

m	Pointer to a 4x3 matrix.

◆ glMultMatrix4x4()

static void glMultMatrix4x4 ( const m4x4 * m )

inlinestatic

Multiplies the current matrix by a 4x4 matrix.

Parameters

m	Pointer to a 4x4 matrix.

◆ glNormal()

static void glNormal ( u32 normal )

inlinestatic

The normal to use for the following vertices.

Parameters

normal the packed normal (three 10 bit values: x, y, z).

Warning: The nature of the format means that you can't represent the following normals exactly: (0,0,1), (0,1,0), (1,0,0)

◆ glNormal3f()

static void glNormal3f	(	float	x,
		float	y,
		float	z
	)

inlinestatic

The normal to use for following vertices.

Parameters

x	X component of the normal, vector must be normalized.
y	Y component of the normal, vector must be normalized.
z	Z component of the normal, vector must be normalized.

Warning: Float version! Please use glNormal() instead.

◆ glOrtho()

static void glOrtho	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	zNear,
		float	zFar
	)

inlinestatic

Multiplies the current matrix into ortho graphic mode.

Parameters

left	Left vertical clipping plane.
right	Right vertical clipping plane.
bottom	Bottom vertical clipping plane.
top	Top vertical clipping plane.
zNear	Near clipping plane.
zFar	Far clipping plane.

Warning: Float version! Please, use glOrthof32() instead.

◆ glOrthof32()

void glOrthof32	(	int	left,
		int	right,
		int	bottom,
		int	top,
		int	zNear,
		int	zFar
	)

Multiplies the current matrix into orthographic mode.

Parameters

left	Left vertical clipping plane.
right	Right vertical clipping plane.
bottom	Bottom vertical clipping plane.
top	Top vertical clipping plane.
zNear	Near clipping plane.
zFar	Far clipping plane.

◆ glPolyFmt()

static void glPolyFmt ( u32 params )

inlinestatic

Set the parameters for polygons rendered on the current frame.

Valid paramters are enumerated in GL_POLY_FORMAT_ENUM and in the functions POLY_ALPHA() and POLY_ID().

Parameters

params The paramters to set for the following polygons.

◆ glPopMatrix()

static void glPopMatrix ( int num )

inlinestatic

Pops the specified number of matrices from the stack.

Parameters

num	The number of matrices to pop.

◆ glRestoreMatrix()

static void glRestoreMatrix ( int index )

inlinestatic

Restores the current matrix from a location in the stack.

Parameters

index The location in the stack.

◆ glRotatef()

static void glRotatef	(	float	angle,
		float	x,
		float	y,
		float	z
	)

inlinestatic

Rotate about an arbitrary axis.

Parameters

x	The x component of the axis to rotate on.
y	The y component of the axis to rotate on.
z	The z component of the axis to rotate on.
angle	The angle to rotate by.

◆ glRotatef32()

static void glRotatef32	(	float	angle,
		int	x,
		int	y,
		int	z
	)

inlinestatic

Rotate on an arbitrary axis.

Parameters

angle	The angle to rotate by
x	The x component of the axis to rotate on.
y	The y component of the axis to rotate on.
z	The z component of the axis to rotate on.

Warning: Float version! Please, use glRotatef32i() instead.

◆ glRotatef32i()

void glRotatef32i	(	int	angle,
		int32_t	x,
		int32_t	y,
		int32_t	z
	)

Rotates the model view matrix by angle about the specified unit vector.

Parameters

angle	The angle to rotate by
x	X component of the unit vector axis.
y	Y component of the unit vector axis.
z	Z component of the unit vector axis.

◆ glRotateX()

static void glRotateX ( float angle )

inlinestatic

Rotates the current modelview matrix by angle degrees around the X axis.

Parameters

angle The angle to rotate by.

Warning: Float version! Please, use glRotateZi() instead.

◆ glRotateXi()

static void glRotateXi ( int angle )

inlinestatic

Rotates the current modelview matrix by angle around the X axis.

Parameters

angle The angle to rotate by (angle is -32768 to 32767).

◆ glRotateY()

static void glRotateY ( float angle )

inlinestatic

Rotates the current modelview matrix by angle degrees around the Y axis.

Parameters

angle The angle to rotate by.

Warning: Float version! Please, use glRotateZi() instead.

◆ glRotateYi()

static void glRotateYi ( int angle )

inlinestatic

Rotates the current modelview matrix by angle around the Y axis.

Parameters

angle The angle to rotate by (angle is -32768 to 32767).

◆ glRotateZ()

static void glRotateZ ( float angle )

inlinestatic

Rotates the current modelview matrix by angle degrees around the Z axis.

Parameters

angle The angle to rotate by.

Warning: Float version! Please, use glRotateZi() instead.

◆ glRotateZi()

static void glRotateZi ( int angle )

inlinestatic

Rotates the current modelview matrix by angle around the Z axis.

Parameters

angle The angle to rotate by (angle is -32768 to 32767).

◆ glScalef()

static void glScalef	(	float	x,
		float	y,
		float	z
	)

inlinestatic

Multiply the current matrix by a scale matrix.

Parameters

x	Scaling on the x axis.
y	Scaling on the y axis.
z	Scaling on the z axis.

Warning: Float version! Please, use glScalev() or glScalef32() instead.

◆ glScalef32()

static void glScalef32	(	int	x,
		int	y,
		int	z
	)

inlinestatic

Multiply the current matrix by a scale matrix.

Parameters

x	Scaling on the x axis.
y	Scaling on the y axis.
z	Scaling on the z axis.

◆ glScalev()

static void glScalev ( const GLvector * v )

inlinestatic

Multiply the current matrix by a scale matrix.

Parameters

v	The vector to scale by.

◆ glSetOutlineColor()

static void glSetOutlineColor	(	int	id,
		rgb	color
	)

inlinestatic

Specifies an edge color for polygons.

Parameters

id	Which outline color to set (0 - 7).
color	The 15 bit color to set

◆ glSetToonTable()

static void glSetToonTable ( const uint16_t * table )

inlinestatic

Loads a toon table.

Parameters

table Pointer to the 32 color palette to load into the toon table.

◆ glSetToonTableRange()

static void glSetToonTableRange	(	int	start,
		int	end,
		rgb	color
	)

inlinestatic

Sets a range of colors on the toon table.

Parameters

start	the start of the range
end	the end of the range
color	the color to set for that range *‍/

◆ glStoreMatrix()

static void glStoreMatrix ( int index )

inlinestatic

Place the current matrix into the stack at the specified location.

Parameters

index The location in the stack.

◆ glTexCoord2f()

void glTexCoord2f	(	float	s,
		float	t
	)

Sets texture coordinates for following vertices.

Parameters

s	S (a.k.a. U) texture coordinate (0.0 - 1.0).
t	T (a.k.a. V) texture coordinate (0.0 - 1.0).

Warning: Float version! Please, use glTexCoord2t16() instead.

◆ glTexCoord2f32()

void glTexCoord2f32	(	int32_t	u,
		int32_t	v
	)

Sets texture coordinates for following vertices (fixed point version).

Parameters

u	U (a.k.a. S) texture coordinate (0.0 - 1.0).
v	V (a.k.a. T) texture coordinate (0.0 - 1.0).

◆ glTexCoord2i()

static void glTexCoord2i	(	t16	u,
		t16	v
	)

inlinestatic

Sets texture coordinates for the following vertices.

Parameters

u	U (a.k.a. S) texture coordinate in texels (12.0 format).
v	V (a.k.a. T) texture coordinate in texels (12.0 format).

◆ glTexCoord2t16()

static void glTexCoord2t16	(	t16	u,
		t16	v
	)

inlinestatic

Sets texture coordinates for the following vertices.

Parameters

u	U (a.k.a. S) texture coordinate in texels (12.4 format).
v	V (a.k.a. T) texture coordinate in texels (12.4 format).

◆ glTexImage2D()

int glTexImage2D	(	int	target,
		int	empty1,
		GL_TEXTURE_TYPE_ENUM	type,
		int	sizeX,
		int	sizeY,
		int	empty2,
		int	param,
		const void *	texture
	)

Loads a 2D texture into texture memory and sets the currently bound texture ID to the attributes specified.

The only allowed texture sizes are powers of two between 8 and 1024 (inclusive). It is possible to specify the size in pixels or using the values of GL_TEXTURE_SIZE_ENUM. Note that a value of 0 won't cause an error because is a GL_TEXTURE_SIZE_ENUM value equivalent to 8 pixels.

Parameters

target	Ignored, only here for OpenGL compatibility.
empty1	Ignored, only here for OpenGL compatibility.
type	The format of the texture.
sizeX	Width of the texture (in pixels or GL_TEXTURE_SIZE_ENUM values).
sizeY	Height of the texture (in pixels or GL_TEXTURE_SIZE_ENUM values).
empty2	Ignored, only here for OpenGL compatibility.
param	Parameters of the texture.
texture	Pointer to the texture data to load. If this is NULL, the texture will be allocated but no data will be copied to it.

Returns: 1 on success, 0 on failure.

◆ glTexParameter()

void glTexParameter	(	int	target,
		int	param
	)

Set parameters for the current texture.

Although it's named the same as its OpenGL counterpart, it is not compatible.

Parameters

target	Ignored, only here for OpenGL compatibility.
param	Paramaters for the texture.

◆ glTexSizeToEnum()

static enum GL_TEXTURE_SIZE_ENUM glTexSizeToEnum ( int size )

inlinestatic

This converts a size in pixels to a GL_TEXTURE_SIZE_ENUM value.

Note: This is not a real OpenGL function.

Parameters

size	Size in pixels.

Returns: A valid GL_TEXTURE_SIZE_ENUM value (TEXTURE_SIZE_INVALID if the size is invalid).

◆ glTranslatef()

static void glTranslatef	(	float	x,
		float	y,
		float	z
	)

inlinestatic

Multiply the current matrix by a translation matrix.

Parameters

x	Translation on the x axis.
y	Translation on the y axis.
z	Translation on the z axis.

Warning: Float version! Please, use glTranslatef32() instead.

◆ glTranslatef32()

static void glTranslatef32	(	int	x,
		int	y,
		int	z
	)

inlinestatic

Multiply the current matrix by a translation matrix.

Parameters

x	Translation on the x axis.
y	Translation on the y axis.
z	Translation on the z axis.

◆ glTranslatev()

static void glTranslatev ( const GLvector * v )

inlinestatic

Multiply the current matrix by a translation matrix.

Parameters

v	The vector to translate by.

◆ gluLookAt()

static void gluLookAt	(	float	eyex,
		float	eyey,
		float	eyez,
		float	lookAtx,
		float	lookAty,
		float	lookAtz,
		float	upx,
		float	upy,
		float	upz
	)

inlinestatic

Places the camera at the specified location and orientation (floating point version).

Parameters

eyex	(eyex, eyey, eyez) Location of the camera.
eyey	(eyex, eyey, eyez) Location of the camera.
eyez	(eyex, eyey, eyez) Location of the camera.
lookAtx	(lookAtx, lookAty, lookAtz) Where the camera is looking.
lookAty	(lookAtx, lookAty, lookAtz) Where the camera is looking.
lookAtz	(lookAtx, lookAty, lookAtz) Where the camera is looking.
upx	<upx, upy, upz> Unit vector describing which direction is up for the camera.
upy	<upx, upy, upz> Unit vector describing which direction is up for the camera.
upz	<upx, upy, upz> Unit vector describing which direction is up for the camera.

Warning: Float version! Please, use gluLookAtf32() instead.

◆ gluLookAtf32()

void gluLookAtf32	(	int	eyex,
		int	eyey,
		int	eyez,
		int	lookAtx,
		int	lookAty,
		int	lookAtz,
		int	upx,
		int	upy,
		int	upz
	)

Places the camera at the specified location and orientation (fixed point version).

Parameters

eyex	(eyex, eyey, eyez) Location of the camera.
eyey	(eyex, eyey, eyez) Location of the camera.
eyez	(eyex, eyey, eyez) Location of the camera.
lookAtx	(lookAtx, lookAty, lookAtz) Where the camera is looking.
lookAty	(lookAtx, lookAty, lookAtz) Where the camera is looking.
lookAtz	(lookAtx, lookAty, lookAtz) Where the camera is looking.
upx	<upx, upy, upz> Unit vector describing which direction is up for the camera.
upy	<upx, upy, upz> Unit vector describing which direction is up for the camera.
upz	<upx, upy, upz> Unit vector describing which direction is up for the camera.

◆ glUnlockVRAMBank()

int glUnlockVRAMBank ( uint16_t * addr )

Unlocks a designated VRAM bank to allow consideration of the bank when allocating textures.

Parameters

addr	The base address of the VRAM bank.

Returns: 1 on success, 0 on failure.

◆ gluPerspective()

static void gluPerspective	(	float	fovy,
		float	aspect,
		float	zNear,
		float	zFar
	)

inlinestatic

Utility function that sets up the projection matrix (floating point version)

Parameters

fovy	Specifies the field of view in degrees.
aspect	Specifies the aspect ratio of the screen (normally screen width/screen height).
zNear	Specifies the near clipping plane.
zFar	Specifies the far clipping plane.

Warning: Float version! Please, use gluPerspectivef32() instead.

◆ gluPerspectivef32()

void gluPerspectivef32	(	int	fovy,
		int	aspect,
		int	zNear,
		int	zFar
	)

Utility function which sets up the projection matrix (fixed point version).

Parameters

fovy	Specifies the field of view in degrees (-32768 to 32767).
aspect	Specifies the aspect ratio of the screen (normally screen width divided by screen height).
zNear	Specifies the near clipping plane.
zFar	Specifies the far clipping plane.

◆ gluPickMatrix()

void gluPickMatrix	(	int	x,
		int	y,
		int	width,
		int	height,
		const int	viewport[4]
	)

Utility function which generates a picking matrix for selection.

Parameters

x	2D x of center (touch x normally).
y	2D y of center (touch y normally).
width	Width in pixels of the window (3 or 4 is a good number).
height	Height in pixels of the window (3 or 4 is a good number).
viewport	The current viewport (normally {0, 0, 255, 191}).

◆ glVertex2v16()

static void glVertex2v16	(	v16	x,
		v16	y
	)

inlinestatic

Specifies a new vertex by its X and Y components.

The Z component is the same as the last vertex sent to the GPU.

Parameters

x	The x component for the vertex.
y	The y component for the vertex.

◆ glVertex3f()

static void glVertex3f	(	float	x,
		float	y,
		float	z
	)

inlinestatic

Specifies a vertex location.

Parameters

x	The x component of the vertex.
y	The y component of the vertex.
z	The z component of the vertex.

Warning: Float version! Please, use glVertex3v16() instead.

◆ glVertex3v16()

static void glVertex3v16	(	v16	x,
		v16	y,
		v16	z
	)

inlinestatic

Specifies a vertex.

Parameters

x	The x component for the vertex.
y	The y component for the vertex.
z	The z component for the vertex.

◆ glViewport()

static void glViewport	(	uint8_t	x1,
		uint8_t	y1,
		uint8_t	x2,
		uint8_t	y2
	)

inlinestatic

Specify the viewport for following drawing.

It can be set several times per frame.

Parameters

x1	the left of the viewport.
y1	the bottom of the viewport.
x2	the right of the viewport.
y2	the top of the viewport.

◆ POLY_ALPHA()

static u32 POLY_ALPHA ( u32 n )

inlinestatic

Used in glPolyFmt() to set the alpha level for the following polygons.

Set to 0 for wireframe mode.

Parameters

n	The level of alpha (0 - 31).

Returns: Value to be used by glPolyFmt().

◆ POLY_ID()

static u32 POLY_ID ( u32 n )

inlinestatic

Used in glPolyFmt() to set the polygon ID for the following polygons.

Parameters

n	The ID to set for following polygons (0 - 63).

Returns: Value to be used by glPolyFmt().

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Typedef Documentation

◆ fixed12d3

◆ GLvector

Enumeration Type Documentation

◆ DISP3DCNT_ENUM

◆ GL_GET_ENUM

◆ GL_GLBEGIN_ENUM

◆ GL_MATERIALS_ENUM

◆ GL_MATRIX_MODE_ENUM

◆ GL_POLY_FORMAT_ENUM

◆ GL_TEXTURE_PALETTE_PARAM_ENUM

◆ GL_TEXTURE_PARAM_ENUM

◆ GL_TEXTURE_SIZE_ENUM

◆ GL_TEXTURE_TYPE_ENUM

◆ GLFLUSH_ENUM

Function Documentation

◆ glAlphaFunc()

◆ glAssignColorTable()

◆ glBegin()

◆ glBindTexture()

◆ glCallList()

◆ glClearColor()

◆ glClearDepth()

◆ glClearPolyID()

◆ glColor()

◆ glColor3b()

◆ glColor3f()

◆ glColorSubTableEXT()

◆ glColorTableEXT()

◆ glCutoffDepth()

◆ glDeleteTextures()

◆ glDisable()

◆ glEnable()

◆ glFlush()

◆ glFogColor()

◆ glFogDensity()

◆ glFogOffset()

◆ glFogShift()

◆ glFrustum()

◆ glFrustumf32()

◆ glGenTextures()

◆ glGetColorTableEXT()

◆ glGetColorTableParameterEXT()

◆ glGetColorTablePointer()

◆ glGetFixed()

◆ glGetInt()

◆ glGetTexParameter()

◆ glGetTextureExtPointer()

◆ glGetTexturePointer()

◆ glInit()

◆ glLight()

◆ glLoadMatrix4x3()

◆ glLoadMatrix4x4()

◆ glLockVRAMBank()

◆ glMaterialf()

◆ glMatrixMode()

◆ glMultMatrix3x3()

◆ glMultMatrix4x3()

◆ glMultMatrix4x4()

◆ glNormal()

◆ glNormal3f()

◆ glOrtho()

◆ glOrthof32()

◆ glPolyFmt()

◆ glPopMatrix()

◆ glRestoreMatrix()

◆ glRotatef()

◆ glRotatef32()

◆ glRotatef32i()

◆ glRotateX()

◆ glRotateXi()

◆ glRotateY()

◆ glRotateYi()

◆ glRotateZ()