mirror of
https://github.com/netsurf-browser/netsurf
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6807b4208a
NetSurf includes are now done with ""s and other system includes with <>s as C intended. The scandeps tool has been updated to only look for ""ed includes, and to verify that the files exist in the tree before adding them to the dependency lines. The depend rule has therefore been augmented to make sure the autogenerated files are built before it is run. This is untested under self-hosted RISC OS builds. All else tested and works. svn path=/trunk/netsurf/; revision=3307
215 lines
6.3 KiB
C
215 lines
6.3 KiB
C
/*
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* This file is part of NetSurf, http://netsurf-browser.org/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
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*/
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#include <stdbool.h>
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#include <swis.h>
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#include "oslib/colourtrans.h"
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#include <oslib/osspriteop.h>
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#include "riscos/image.h"
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#include "riscos/gui.h"
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#include "riscos/options.h"
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#include "riscos/tinct.h"
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#include "utils/log.h"
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#include "utils/utils.h"
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static bool image_redraw_tinct(osspriteop_id header, int x, int y,
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int req_width, int req_height, int width, int height,
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unsigned long background_colour, bool repeatx, bool repeaty,
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bool alpha, unsigned int tinct_options);
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static bool image_redraw_os(osspriteop_id header, int x, int y,
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int req_width, int req_height, int width, int height);
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/**
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* Plot an image at the given coordinates using the method specified
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*
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* \param area The sprite area containing the sprite
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* \param x Left edge of sprite
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* \param y Top edge of sprite
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* \param req_width The requested width of the sprite
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* \param req_height The requested height of the sprite
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* \param width The actual width of the sprite
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* \param height The actual height of the sprite
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* \param background_colour The background colour to blend to
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* \param repeatx Repeat the image in the x direction
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* \param repeaty Repeat the image in the y direction
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* \param background Use background image settings (otherwise foreground)
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* \param type The plot method to use
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* \return true on success, false otherwise
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*/
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bool image_redraw(osspriteop_area *area, int x, int y, int req_width,
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int req_height, int width, int height,
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unsigned long background_colour,
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bool repeatx, bool repeaty, bool background, image_type type)
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{
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unsigned int tinct_options;
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/* failed decompression/loading can result in no image being present */
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if (!area)
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return false;
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osspriteop_id header = (osspriteop_id)
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((char*) area + area->first);
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req_width *= 2;
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req_height *= 2;
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width *= 2;
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height *= 2;
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tinct_options = background ? option_bg_plot_style :
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option_fg_plot_style;
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switch (type) {
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case IMAGE_PLOT_TINCT_ALPHA:
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return image_redraw_tinct(header, x, y,
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req_width, req_height,
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width, height,
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background_colour,
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repeatx, repeaty, true,
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tinct_options);
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case IMAGE_PLOT_TINCT_OPAQUE:
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return image_redraw_tinct(header, x, y,
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req_width, req_height,
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width, height,
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background_colour,
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repeatx, repeaty, false,
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tinct_options);
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case IMAGE_PLOT_OS:
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return image_redraw_os(header, x, y, req_width,
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req_height, width, height);
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default:
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break;
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}
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return false;
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}
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/**
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* Plot an image at the given coordinates using tinct
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*
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* \param area The sprite area containing the sprite
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* \param x Left edge of sprite
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* \param y Top edge of sprite
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* \param req_width The requested width of the sprite
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* \param req_height The requested height of the sprite
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* \param width The actual width of the sprite
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* \param height The actual height of the sprite
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* \param background_colour The background colour to blend to
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* \param repeatx Repeat the image in the x direction
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* \param repeaty Repeat the image in the y direction
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* \param alpha Use the alpha channel
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* \param tinct_options The base option set to use
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* \return true on success, false otherwise
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*/
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bool image_redraw_tinct(osspriteop_id header, int x, int y,
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int req_width, int req_height, int width, int height,
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unsigned long background_colour, bool repeatx, bool repeaty,
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bool alpha, unsigned int tinct_options)
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{
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_kernel_oserror *error;
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/* Set up our flagword
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*/
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tinct_options |= background_colour << tinct_BACKGROUND_SHIFT;
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if (print_active)
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tinct_options |= tinct_USE_OS_SPRITE_OP;
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if (repeatx)
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tinct_options |= tinct_FILL_HORIZONTALLY;
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if (repeaty)
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tinct_options |= tinct_FILL_VERTICALLY;
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if (alpha) {
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error = _swix(Tinct_PlotScaledAlpha, _INR(2,7),
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header, x, y - req_height,
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req_width, req_height, tinct_options);
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} else {
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error = _swix(Tinct_PlotScaled, _INR(2,7),
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header, x, y - req_height,
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req_width, req_height, tinct_options);
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}
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if (error) {
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LOG(("xtinct_plotscaled%s: 0x%x: %s", (alpha ? "alpha" : ""),
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error->errnum, error->errmess));
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return false;
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}
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return true;
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}
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/**
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* Plot an image at the given coordinates using os_spriteop
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*
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* \param area The sprite area containing the sprite
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* \param x Left edge of sprite
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* \param y Top edge of sprite
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* \param req_width The requested width of the sprite
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* \param req_height The requested height of the sprite
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* \param width The actual width of the sprite
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* \param height The actual height of the sprite
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* \return true on success, false otherwise
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*/
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bool image_redraw_os(osspriteop_id header, int x, int y, int req_width,
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int req_height, int width, int height)
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{
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unsigned int size;
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os_factors f;
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osspriteop_trans_tab *table;
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os_error *error;
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error = xcolourtrans_generate_table_for_sprite(
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(osspriteop_area *)0x100, header,
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colourtrans_CURRENT_MODE,
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colourtrans_CURRENT_PALETTE,
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0, colourtrans_GIVEN_SPRITE, 0, 0, &size);
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if (error) {
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LOG(("xcolourtrans_generate_table_for_sprite: 0x%x: %s",
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error->errnum, error->errmess));
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return false;
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}
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table = calloc(size, sizeof(char));
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if (!table) {
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LOG(("malloc failed"));
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warn_user("NoMemory", 0);
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return false;
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}
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error = xcolourtrans_generate_table_for_sprite(
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(osspriteop_area *)0x100, header,
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colourtrans_CURRENT_MODE,
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colourtrans_CURRENT_PALETTE,
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table, colourtrans_GIVEN_SPRITE, 0, 0, 0);
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if (error) {
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LOG(("xcolourtrans_generate_table_for_sprite: 0x%x: %s",
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error->errnum, error->errmess));
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free(table);
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return false;
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}
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f.xmul = req_width;
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f.ymul = req_height;
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f.xdiv = width;
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f.ydiv = height;
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error = xosspriteop_put_sprite_scaled(osspriteop_PTR,
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(osspriteop_area *)0x100, header,
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x, (int)(y - req_height),
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8, &f, table);
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if (error) {
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LOG(("xosspriteop_put_sprite_scaled: 0x%x: %s",
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error->errnum, error->errmess));
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free(table);
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return false;
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}
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free(table);
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return true;
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}
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