GF_Node *CT2D_PickNode(GF_TextureHandler *txh, DrawableContext *ctx, Fixed x, Fixed y)
{
GF_Rect orig;
GF_Matrix2D mat, tx_trans;
Fixed width, height;
Composite2DStack *st = (Composite2DStack *) gf_node_get_private(txh->owner);
assert(st->surf);
orig = ctx->bi->unclip;
gf_mx2d_copy(mat, ctx->transform);
gf_mx2d_inverse(&mat);
gf_mx2d_apply_rect(&mat, &orig);
gf_mx2d_init(mat);
gf_mx2d_add_scale(&mat, orig.width / st->width, orig.height / st->height);
get_gf_sr_texture_transform(ctx->appear, &st->txh, &tx_trans, (ctx->h_texture==&st->txh) ? 0 : 1, INT2FIX(orig.width), INT2FIX(orig.height));
gf_mx2d_add_matrix(&mat, &tx_trans);
gf_mx2d_add_translation(&mat, (orig.x), (orig.y - orig.height));
gf_mx2d_add_matrix(&mat, &ctx->transform);
gf_mx2d_inverse(&mat);
gf_mx2d_apply_coords(&mat, &x, &y);
width = INT2FIX(st->width);
height = INT2FIX(st->height);
while (x>width) x -= width;
while (x < 0) x += width;
while (y>height) y -= height;
while (y < 0) y += height;
x -= width / 2;
y -= height / 2;
return VS2D_PickNode(st->surf, x, y);
}
static void VS2D_DrawGradient(VisualSurface2D *surf, GF_Path *path, GF_TextureHandler *txh, struct _drawable_context *ctx)
{
GF_Rect rc;
GF_Matrix2D g_mat, txt_mat;
GF_Raster2D *r2d = surf->render->compositor->r2d;
if (!txh) txh = ctx->h_texture;
gf_path_get_bounds(path, &rc);
if (!rc.width || !rc.height || !txh->hwtx) return;
txh->compute_gradient_matrix(txh, &rc, &g_mat);
if (ctx->flags & CTX_HAS_APPEARANCE) {
get_gf_sr_texture_transform(ctx->appear, txh, &txt_mat, (txh == ctx->h_texture) ? 0 : 1, INT2FIX(txh->width), INT2FIX(txh->height));
gf_mx2d_add_matrix(&g_mat, &txt_mat);
}
gf_mx2d_add_matrix(&g_mat, &ctx->transform);
r2d->stencil_set_matrix(txh->hwtx, &g_mat);
r2d->stencil_set_color_matrix(txh->hwtx, ctx->col_mat);
r2d->surface_set_matrix(surf->the_surface, &ctx->transform);
r2d->surface_set_path(surf->the_surface, path);
VS2D_DoFill(surf, ctx, txh->hwtx);
r2d->surface_set_path(surf->the_surface, NULL);
ctx->flags |= CTX_PATH_FILLED;
}
void VS2D_TexturePathIntern(VisualSurface2D *surf, GF_Path *path, GF_TextureHandler *txh, struct _drawable_context *ctx)
{
Fixed sS, sT;
u32 tx_tile;
GF_Matrix2D gf_mx2d_txt, gf_sr_texture_transform;
GF_Rect rc, orig_rc;
GF_Raster2D *r2d = surf->render->compositor->r2d;
if (!txh) txh = ctx->h_texture;
if (!txh || !txh->hwtx) return;
/*this is gradient draw*/
if (txh->compute_gradient_matrix) {
VS2D_DrawGradient(surf, path, txh, ctx);
return;
}
/*setup quality even for background (since quality concerns images)*/
VS2D_SetOptions(surf->render, surf->the_surface, ctx->flags & CTX_IS_TEXT, ctx->flags & CTX_NO_ANTIALIAS);
/*get original bounds*/
gf_path_get_bounds(path, &orig_rc);
/*get active texture window in pixels*/
rc.width = INT2FIX(txh->width);
rc.height = INT2FIX(txh->height);
/*get scaling ratio so that active texture view is stretched to original bounds (std 2D shape texture mapping in MPEG4)*/
sS = orig_rc.width / txh->width;
sT = orig_rc.height / txh->height;
gf_mx2d_init(gf_mx2d_txt);
gf_mx2d_add_scale(&gf_mx2d_txt, sS, sT);
/*apply texture transform*/
get_gf_sr_texture_transform(ctx->appear, txh, &gf_sr_texture_transform, (txh == ctx->h_texture) ? 0 : 1, txh->width * sS, txh->height * sT);
gf_mx2d_add_matrix(&gf_mx2d_txt, &gf_sr_texture_transform);
/*move to bottom-left corner of bounds */
gf_mx2d_add_translation(&gf_mx2d_txt, (orig_rc.x), (orig_rc.y - orig_rc.height));
/*move to final coordinate system (except background which is built directly in final coord system)*/
if (!(ctx->flags & CTX_IS_BACKGROUND) ) gf_mx2d_add_matrix(&gf_mx2d_txt, &ctx->transform);
/*set path transform, except for background2D node which is directly build in the final coord system*/
r2d->stencil_set_matrix(txh->hwtx, &gf_mx2d_txt);
tx_tile = 0;
if (txh->flags & GF_SR_TEXTURE_REPEAT_S) tx_tile |= GF_TEXTURE_REPEAT_S;
if (txh->flags & GF_SR_TEXTURE_REPEAT_T) tx_tile |= GF_TEXTURE_REPEAT_T;
r2d->stencil_set_tiling(txh->hwtx, (GF_TextureTiling) tx_tile);
if (!(ctx->flags & CTX_IS_BACKGROUND) ) {
u8 a = GF_COL_A(ctx->aspect.fill_color);
if (!a) a = GF_COL_A(ctx->aspect.line_color);
/*texture alpha scale is the original material transparency, NOT the one after color transform*/
r2d->stencil_set_texture_alpha(txh->hwtx, a );
r2d->stencil_set_color_matrix(txh->hwtx, ctx->col_mat);
r2d->surface_set_matrix(surf->the_surface, &ctx->transform);
} else {
r2d->surface_set_matrix(surf->the_surface, NULL);
}
/*push path & draw*/
r2d->surface_set_path(surf->the_surface, path);
VS2D_DoFill(surf, ctx, txh->hwtx);
r2d->surface_set_path(surf->the_surface, NULL);
ctx->flags |= CTX_PATH_FILLED;
}
