From 7577a2b69f9a77962912753b6768b38db4e3c454 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Thu, 15 Apr 2010 23:31:24 -0400 Subject: Initial support for image_maps. --- dimension/realize.c | 49 ++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 44 insertions(+), 5 deletions(-) (limited to 'dimension/realize.c') diff --git a/dimension/realize.c b/dimension/realize.c index 463c27e..a40095a 100644 --- a/dimension/realize.c +++ b/dimension/realize.c @@ -56,6 +56,14 @@ dmnsn_realize_float(dmnsn_astnode astnode) } } +/* dmnsn_realize_string is an API function, so call this dmnsn_realize_str */ +static const char* +dmnsn_realize_str(dmnsn_astnode astnode) +{ + dmnsn_assert(astnode.type == DMNSN_AST_STRING, "Expected a string."); + return astnode.ptr; +} + static dmnsn_vector dmnsn_realize_vector(dmnsn_astnode astnode) { @@ -426,21 +434,52 @@ dmnsn_realize_pigment(dmnsn_astnode astnode) dmnsn_pigment *pigment = NULL; - dmnsn_astnode color_node; - dmnsn_array_get(astnode.children, 0, &color_node); + dmnsn_astnode type_node; + dmnsn_array_get(astnode.children, 0, &type_node); dmnsn_color color; - switch (color_node.type) { + switch (type_node.type) { case DMNSN_AST_NONE: break; case DMNSN_AST_VECTOR: - color = dmnsn_realize_color(color_node); + color = dmnsn_realize_color(type_node); pigment = dmnsn_new_solid_pigment(color); break; + case DMNSN_AST_IMAGE_MAP: + { + dmnsn_astnode filetype, strnode; + dmnsn_array_get(type_node.children, 0, &filetype); + dmnsn_array_get(type_node.children, 1, &strnode); + + const char *path = dmnsn_realize_str(strnode); + FILE *file = fopen(path, "rb"); + if (!file) { + dmnsn_error(DMNSN_SEVERITY_MEDIUM, "Couldn't open image file."); + return NULL; + } + + dmnsn_canvas *canvas; + switch (filetype.type) { + case DMNSN_AST_PNG: + canvas = dmnsn_png_read_canvas(file); + if (!canvas) { + dmnsn_error(DMNSN_SEVERITY_MEDIUM, "Invalid PNG file."); + return NULL; + } + pigment = dmnsn_new_canvas_pigment(canvas); + break; + + default: + dmnsn_assert(false, "Invalid image_map type."); + break; + } + break; + } + default: - dmnsn_assert(false, "Invalid pigment color."); + dmnsn_assert(false, "Invalid pigment type."); } dmnsn_astnode modifiers; -- cgit v1.2.3