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Simplify gfx_display_rotate_z

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libretroadmin 2022-07-03 17:38:09 +02:00
parent 91c8541e20
commit 50873f7c38
1 changed files with 29 additions and 16 deletions
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45
gfx/gfx_display.c
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@ -959,30 +959,43 @@ void gfx_display_draw_texture_slice(
void gfx_display_rotate_z(gfx_display_t *p_disp, void gfx_display_rotate_z(gfx_display_t *p_disp,
gfx_display_ctx_rotate_draw_t *draw, void *data) gfx_display_ctx_rotate_draw_t *draw, void *data)
{ {
math_matrix_4x4 matrix_rotated, matrix_scaled; float cosine, sine, radians;
math_matrix_4x4 *b = NULL; math_matrix_4x4 matrix_rotated = {
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx; { 0.0f, 0.0f, 0.0f, 0.0f ,
0.0f, 0.0f, 0.0f, 0.0f ,
0.0f, 0.0f, 1.0f, 0.0f ,
0.0f, 0.0f, 0.0f, 1.0f }
};
math_matrix_4x4 *b = NULL;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if ( if (
!draw || dispctx->handles_transform
!dispctx || || !dispctx->get_default_mvp
!dispctx->get_default_mvp || || !(b = (math_matrix_4x4*)dispctx->get_default_mvp(data))
dispctx->handles_transform
) )
return; return;
if (!(b = (math_matrix_4x4*)dispctx->get_default_mvp(data))) radians = draw->rotation;
return; cosine = cosf(radians);
sine = sinf(radians);
MAT_ELEM_4X4(matrix_rotated, 0, 0) = cosine;
MAT_ELEM_4X4(matrix_rotated, 0, 1) = -sine;
MAT_ELEM_4X4(matrix_rotated, 1, 0) = sine;
MAT_ELEM_4X4(matrix_rotated, 1, 1) = cosine;
matrix_4x4_rotate_z(matrix_rotated, draw->rotation);
matrix_4x4_multiply(*draw->matrix, matrix_rotated, *b); matrix_4x4_multiply(*draw->matrix, matrix_rotated, *b);
if (!draw->scale_enable) if (draw->scale_enable)
return; {
math_matrix_4x4 matrix_scaled = {
matrix_4x4_scale(matrix_scaled, { draw->scale_x, 0.0f, 0.0f, 0.0f ,
draw->scale_x, draw->scale_y, draw->scale_z); 0.0f, draw->scale_y, 0.0f, 0.0f ,
matrix_4x4_multiply(*draw->matrix, matrix_scaled, *draw->matrix); 0.0f, 0.0f, draw->scale_z, 0.0f ,
0.0f, 0.0f, 0.0f, 1.0f }
};
matrix_4x4_multiply(*draw->matrix, matrix_scaled, *draw->matrix);
}
} }
/* /*