static void *menu_display_d3d_get_default_mvp(video_frame_info_t *video_info)
{
static math_matrix_4x4 id;
matrix_4x4_identity(id);
return &id;
}
static void *menu_display_d3d_get_default_mvp(void)
{
static math_matrix_4x4 id;
matrix_4x4_identity(id);
return &id;
}
/*
* Builds a translation matrix. All other elements in
* the matrix will be set to zero except for the
* diagonal which is set to 1.0
*/
void matrix_4x4_translate(math_matrix_4x4 *out, float x,
float y, float z)
{
matrix_4x4_identity(out);
MAT_ELEM_4X4(*out, 0, 3) = x;
MAT_ELEM_4X4(*out, 1, 3) = y;
MAT_ELEM_4X4(*out, 2, 3) = z;
}
/*
* Builds a rotation matrix using the
* rotation around the Z-axis.
*/
void matrix_4x4_rotate_z(math_matrix_4x4 *mat, float rad)
{
float cosine = cosf(rad);
float sine = sinf(rad);
matrix_4x4_identity(mat);
MAT_ELEM_4X4(*mat, 0, 0) = cosine;
MAT_ELEM_4X4(*mat, 1, 1) = cosine;
MAT_ELEM_4X4(*mat, 0, 1) = -sine;
MAT_ELEM_4X4(*mat, 1, 0) = sine;
}
static void gl1_renderchain_ff_matrix(const void *data)
{
math_matrix_4x4 ident;
const math_matrix_4x4 *mat = (const math_matrix_4x4*)data;
/* Fall back to fixed function-style if needed and possible. */
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(mat->data);
glMatrixMode(GL_MODELVIEW);
matrix_4x4_identity(ident);
glLoadMatrixf(ident.data);
}
void gl_ff_matrix(const math_matrix_4x4 *mat)
{
#ifndef NO_GL_FF_MATRIX
math_matrix_4x4 ident;
/* Fall back to fixed function-style if needed and possible. */
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(mat->data);
glMatrixMode(GL_MODELVIEW);
matrix_4x4_identity(&ident);
glLoadMatrixf(ident.data);
#endif
}
/*
* Creates an orthographic projection matrix.
*/
void matrix_4x4_ortho(math_matrix_4x4 *mat,
float left, float right,
float bottom, float top,
float znear, float zfar)
{
float rl = right - left;
float tb = top - bottom;
float fn = zfar - znear;
matrix_4x4_identity(mat);
MAT_ELEM_4X4(*mat, 0, 0) = 2.0f / rl;
MAT_ELEM_4X4(*mat, 1, 1) = 2.0f / tb;
MAT_ELEM_4X4(*mat, 2, 2) = -2.0f / fn;
MAT_ELEM_4X4(*mat, 0, 3) = -(left + right) / rl;
MAT_ELEM_4X4(*mat, 1, 3) = -(top + bottom) / tb;
MAT_ELEM_4X4(*mat, 2, 3) = -(zfar + znear) / fn;
}
/*
* Creates an orthographic projection matrix.
*/
void matrix_4x4_ortho(math_matrix_4x4 *mat,
float left, float right,
float bottom, float top,
float znear, float zfar)
{
float tx, ty, tz;
matrix_4x4_identity(mat);
tx = -(right + left) / (right - left);
ty = -(top + bottom) / (top - bottom);
tz = -(zfar + znear) / (zfar - znear);
MAT_ELEM_4X4(*mat, 0, 0) = 2.0f / (right - left);
MAT_ELEM_4X4(*mat, 1, 1) = 2.0f / (top - bottom);
MAT_ELEM_4X4(*mat, 2, 2) = -2.0f / (zfar - znear);
MAT_ELEM_4X4(*mat, 0, 3) = tx;
MAT_ELEM_4X4(*mat, 1, 3) = ty;
MAT_ELEM_4X4(*mat, 2, 3) = tz;
}