void
shader_drawbuffer(struct render_buffer * rb, float tx, float ty, float scale) {
rs_commit();
RID glid = texture_glid(rb->texid);
if (glid == 0)
return;
shader_texture(glid, 0);
render_set(RS->R, VERTEXBUFFER, rb->vbid, 0);
float sx = scale;
float sy = scale;
screen_trans(&sx, &sy);
screen_trans(&tx, &ty);
float v[4] = { sx, sy, tx, ty };
// we should call shader_adduniform to add "st" uniform first
shader_setuniform(PROGRAM_RENDERBUFFER, 0, UNIFORM_FLOAT4, v);
shader_program(PROGRAM_RENDERBUFFER, NULL);
RS->drawcall++;
renderbuffer_commit(rb);
render_set(RS->R, VERTEXBUFFER, RS->vertex_buffer, 0);
}
void
sprite_drawquad(struct pack_picture *picture, const struct srt *srt, const struct sprite_trans *arg) {
struct matrix tmp;
struct vertex_pack vb[4];
int i,j;
if (arg->mat == NULL) {
matrix_identity(&tmp);
} else {
tmp = *arg->mat;
}
matrix_srt(&tmp, srt);
int *m = tmp.m;
for (i=0;i<picture->n;i++) {
struct pack_quad *q = &picture->rect[i];
int glid = texture_glid(q->texid);
if (glid == 0)
continue;
shader_texture(glid, 0);
for (j=0;j<4;j++) {
int xx = q->screen_coord[j*2+0];
int yy = q->screen_coord[j*2+1];
float vx = (xx * m[0] + yy * m[2]) / 1024 + m[4];
float vy = (xx * m[1] + yy * m[3]) / 1024 + m[5];
float tx = q->texture_coord[j*2+0];
float ty = q->texture_coord[j*2+1];
screen_trans(&vx,&vy);
vb[j].vx = vx;
vb[j].vy = vy;
vb[j].tx = tx;
vb[j].ty = ty;
}
shader_draw(vb, arg->color, arg->additive);
}
}
static inline void
set_point(float *v, int *m, int xx, int yy,int tx, int ty) {
v[0] = (xx * m[0] + yy * m[2]) / 1024 + m[4];
v[1] = (xx * m[1] + yy * m[3]) / 1024 + m[5];
screen_trans(&v[0],&v[1]);
v[2] = (float)tx * (1.0f/TEX_WIDTH);
v[3] = (float)ty * (1.0f/TEX_HEIGHT);
}
static inline void
set_point(struct vertex_pack *v, int *m, int xx, int yy,int tx, int ty) {
v->vx = (xx * m[0] + yy * m[2]) / 1024 + m[4];
v->vy = (xx * m[1] + yy * m[3]) / 1024 + m[5];
screen_trans(&v->vx,&v->vy);
v->tx = (uint16_t)(tx * (65535.0f/TEX_WIDTH));
v->ty = (uint16_t)(ty * (65535.0f/TEX_HEIGHT));
}
static int
lshader_st(lua_State *L) {
int prog = luaL_checkinteger(L, 1);
float x = luaL_checknumber(L, 2);
float y = luaL_checknumber(L, 3);
float scale = luaL_optnumber(L, 4, 1.0);
screen_trans(&x, &y);
shader_st(prog, x * SCREEN_SCALE, y * SCREEN_SCALE, scale);
return 0;
}
void
shader_drawbuffer(struct render_buffer * rb, float tx, float ty, float scale) {
rs_commit();
int glid = texture_glid(rb->texid);
if (glid == 0)
return;
shader_texture(glid);
shader_program(PROGRAM_RENDERBUFFER);
RS->drawcall++;
glBindBuffer(GL_ARRAY_BUFFER, rb->vbid);
float sx = scale;
float sy = scale;
screen_trans(&sx, &sy);
screen_trans(&tx, &ty);
struct program *p = &RS->program[RS->current_program];
glUniform4f(p->st, sx, sy, tx, ty);
renderbuffer_commit(rb);
}
/*
int texture
table float[16]
uint32_t color
uint32_t additive
*/
static int
ldraw(lua_State *L) {
int tex = (int)luaL_checkinteger(L,1);
int texid = texture_glid(tex);
if (texid == 0) {
lua_pushboolean(L,0);
return 1;
}
luaL_checktype(L, 2, LUA_TTABLE);
uint32_t color = 0xffffffff;
if (!lua_isnoneornil(L,3)) {
color = (uint32_t)lua_tounsigned(L,3);
}
uint32_t additive = (uint32_t)luaL_optunsigned(L,4,0);
shader_program(PROGRAM_PICTURE,additive);
shader_texture(texid);
int n = lua_rawlen(L, 2);
int point = n/4;
if (point * 4 != n) {
return luaL_error(L, "Invalid polygon");
}
#if !defined(_MSC_VER)
float vb[n];
#else
msvc::dynarray<float> vb(n);
#endif
int i;
for (i=0;i<point;i++) {
lua_rawgeti(L, 2, i*2+1);
lua_rawgeti(L, 2, i*2+2);
lua_rawgeti(L, 2, point*2+i*2+1);
lua_rawgeti(L, 2, point*2+i*2+2);
float tx = lua_tonumber(L, -4);
float ty = lua_tonumber(L, -3);
float vx = lua_tonumber(L, -2);
float vy = lua_tonumber(L, -1);
lua_pop(L,4);
screen_trans(&vx,&vy);
texture_coord(tex, &tx, &ty);
vb[i*4+0] = vx + 1.0f;
vb[i*4+1] = vy - 1.0f;
vb[i*4+2] = tx;
vb[i*4+3] = ty;
}
if (point == 4) {
shader_draw(vb, color);
} else {
shader_drawpolygon(point, vb, color);
}
return 0;
}
/*
int texture
table float[16]
uint32_t color
uint32_t additive
*/
static int
ldraw(lua_State *L) {
int tex = (int)luaL_checkinteger(L,1);
int texid = texture_glid(tex);
if (texid == 0) {
lua_pushboolean(L,0);
return 1;
}
luaL_checktype(L, 2, LUA_TTABLE);
uint32_t color = 0xffffffff;
if (!lua_isnoneornil(L,3)) {
color = (uint32_t)lua_tounsigned(L,3);
}
uint32_t additive = (uint32_t)luaL_optunsigned(L,4,0);
shader_program(PROGRAM_PICTURE);
shader_texture(texid);
int n = lua_rawlen(L, 2);
int point = n/4;
if (point * 4 != n) {
return luaL_error(L, "Invalid polygon");
}
ARRAY(struct vertex_pack, vb, point);
int i;
for (i=0;i<point;i++) {
lua_rawgeti(L, 2, i*2+1);
lua_rawgeti(L, 2, i*2+2);
lua_rawgeti(L, 2, point*2+i*2+1);
lua_rawgeti(L, 2, point*2+i*2+2);
float tx = lua_tonumber(L, -4);
float ty = lua_tonumber(L, -3);
float vx = lua_tonumber(L, -2);
float vy = lua_tonumber(L, -1);
uint16_t u,v;
lua_pop(L,4);
screen_trans(&vx,&vy);
texture_coord(tex, tx, ty, &u, &v);
vb[i].vx = vx + 1.0f;
vb[i].vy = vy - 1.0f;
vb[i].tx = u;
vb[i].ty = v;
}
if (point == 4) {
shader_draw(vb, color, additive);
} else {
shader_drawpolygon(point, vb, color, additive);
}
return 0;
}
void
sprite_drawquad(struct pack_picture *picture, struct pack_picture *mask, const struct srt *srt, const struct sprite_trans *arg) {
struct matrix tmp;
float vb[16];
int i,j;
if (arg->mat == NULL) {
matrix_identity(&tmp);
} else {
tmp = *arg->mat;
}
matrix_srt(&tmp, srt);
int *m = tmp.m;
for (i=0;i<picture->n;i++) {
struct pack_quad *q = &picture->rect[i];
int glid = texture_glid(q->texid);
if (glid == 0)
continue;
shader_texture(glid);
for (j=0;j<4;j++) {
int xx = q->screen_coord[j*2+0];
int yy = q->screen_coord[j*2+1];
float vx = (xx * m[0] + yy * m[2]) / 1024 + m[4];
float vy = (xx * m[1] + yy * m[3]) / 1024 + m[5];
float tx = q->texture_coord[j*2+0];
float ty = q->texture_coord[j*2+1];
screen_trans(&vx,&vy);
texture_coord(q->texid, &tx, &ty);
vb[j*4+0] = vx;
vb[j*4+1] = vy;
vb[j*4+2] = tx;
vb[j*4+3] = ty;
}
if(!enable_visible_test || !screen_is_poly_invisible(vb,4,4))
{
if (mask != NULL) {
float tx = mask->rect[0].texture_coord[0];
float ty = mask->rect[0].texture_coord[1];
texture_coord(mask->rect[0].texid, &tx, &ty);
float delta_tx = tx - vb[2];
float delta_ty = ty - vb[3];
shader_mask(delta_tx, delta_ty);
}
shader_draw(vb, arg->color);
}
}
}
void
sprite_drawpolygon(struct pack_polygon *poly, const struct srt *srt, const struct sprite_trans *arg) {
struct matrix tmp;
int i,j;
if (arg->mat == NULL) {
matrix_identity(&tmp);
} else {
tmp = *arg->mat;
}
matrix_srt(&tmp, srt);
int *m = tmp.m;
for (i=0;i<poly->n;i++) {
struct pack_poly *p = &poly->poly[i];
int glid = texture_glid(p->texid);
if (glid == 0)
continue;
shader_texture(glid);
int pn = p->n;
ARRAY(float, vb, 4 * pn);
for (j=0;j<pn;j++) {
int xx = p->screen_coord[j*2+0];
int yy = p->screen_coord[j*2+1];
float vx = (xx * m[0] + yy * m[2]) / 1024 + m[4];
float vy = (xx * m[1] + yy * m[3]) / 1024 + m[5];
float tx = p->texture_coord[j*2+0];
float ty = p->texture_coord[j*2+1];
screen_trans(&vx,&vy);
texture_coord(p->texid, &tx, &ty);
vb[j*4+0] = vx;
vb[j*4+1] = vy;
vb[j*4+2] = tx;
vb[j*4+3] = ty;
}
shader_drawpolygon(pn, vb, arg->color);
}
}
