void *d3d_matrix_rotation_z(void *_pout, float angle)
{
struct d3d_matrix *pout = (struct d3d_matrix*)_pout;
d3d_matrix_identity(pout);
pout->m[0][0] = cos(angle);
pout->m[1][1] = cos(angle);
pout->m[0][1] = sin(angle);
pout->m[1][0] = -sin(angle);
return pout;
}
void *d3d_matrix_ortho_off_center_lh(void *_pout,
float l, float r, float b, float t, float zn, float zf)
{
struct d3d_matrix *pout = (struct d3d_matrix*)_pout;
d3d_matrix_identity(pout);
pout->m[0][0] = 2.0f / (r - l);
pout->m[1][1] = 2.0f / (t - b);
pout->m[2][2] = 1.0f / (zf -zn);
pout->m[3][0] = -1.0f -2.0f *l / (r - l);
pout->m[3][1] = 1.0f + 2.0f * t / (b - t);
pout->m[3][2] = zn / (zn -zf);
return pout;
}
static void d3d9_cg_renderchain_calc_and_set_shader_mvp(
void *data, /* stock vertex program */
unsigned vp_width, unsigned vp_height,
unsigned rotation)
{
struct d3d_matrix proj, ortho, rot, matrix;
d3d_matrix_ortho_off_center_lh(&ortho, 0, vp_width, 0, vp_height, 0, 1);
d3d_matrix_identity(&rot);
d3d_matrix_rotation_z(&rot, rotation * (D3D_PI / 2.0));
d3d_matrix_multiply(&proj, &ortho, &rot);
d3d_matrix_transpose(&matrix, &proj);
d3d9_cg_set_param_matrix(data, NULL, "modelViewProj", (const void*)&matrix);
}
static bool d3d9_cg_renderchain_create_first_pass(
LPDIRECT3DDEVICE9 dev,
cg_renderchain_t *cg_chain,
d3d9_renderchain_t *chain,
const struct LinkInfo *info, unsigned _fmt)
{
unsigned i;
struct shader_pass pass;
struct d3d_matrix ident;
unsigned fmt = (_fmt == RETRO_PIXEL_FORMAT_RGB565) ?
d3d9_get_rgb565_format() : d3d9_get_xrgb8888_format();
d3d_matrix_identity(&ident);
d3d9_set_transform(dev, D3DTS_WORLD, (D3DMATRIX*)&ident);
d3d9_set_transform(dev, D3DTS_VIEW, (D3DMATRIX*)&ident);
pass.info = *info;
pass.last_width = 0;
pass.last_height = 0;
pass.attrib_map = (struct unsigned_vector_list*)
unsigned_vector_list_new();
chain->prev.ptr = 0;
for (i = 0; i < TEXTURES; i++)
{
chain->prev.last_width[i] = 0;
chain->prev.last_height[i] = 0;
chain->prev.vertex_buf[i] = (LPDIRECT3DVERTEXBUFFER9)
d3d9_vertex_buffer_new(
chain->dev, 4 * sizeof(struct D3D9Vertex),
D3DUSAGE_WRITEONLY, 0, D3DPOOL_DEFAULT, NULL);
if (!chain->prev.vertex_buf[i])
return false;
chain->prev.tex[i] = (LPDIRECT3DTEXTURE9)
d3d9_texture_new(chain->dev, NULL,
info->tex_w, info->tex_h, 1, 0, fmt,
D3DPOOL_MANAGED, 0, 0, 0, NULL, NULL, false);
if (!chain->prev.tex[i])
return false;
d3d9_set_texture(chain->dev, 0, chain->prev.tex[i]);
d3d9_set_sampler_minfilter(dev, 0,
d3d_translate_filter(info->pass->filter));
d3d9_set_sampler_magfilter(dev, 0,
d3d_translate_filter(info->pass->filter));
d3d9_set_sampler_address_u(dev, 0, D3DTADDRESS_BORDER);
d3d9_set_sampler_address_v(dev, 0, D3DTADDRESS_BORDER);
d3d9_set_texture(chain->dev, 0, NULL);
}
d3d9_cg_load_program(cg_chain, &pass, info->pass->source.path, true);
if (!d3d9_cg_renderchain_init_shader_fvf(chain, &pass))
return false;
shader_pass_vector_list_append(chain->passes, pass);
return true;
}
