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-rw-r--r--windows/bitmap.c387
1 files changed, 0 insertions, 387 deletions
diff --git a/windows/bitmap.c b/windows/bitmap.c
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--- a/windows/bitmap.c
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@@ -1,387 +0,0 @@
-/*
- * Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
- * Copyright 2009 Mark Benjamin <netsurf-browser.org.MarkBenjamin@dfgh.net>
- *
- * This file is part of NetSurf, http://www.netsurf-browser.org/
- *
- * NetSurf is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * NetSurf is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/**
- * \file
- * win32 implementation of the bitmap operations.
- */
-
-#include "utils/config.h"
-
-#include <inttypes.h>
-#include <sys/types.h>
-#include <string.h>
-#include <windows.h>
-
-#include "utils/log.h"
-#include "image/bitmap.h"
-#include "desktop/plotters.h"
-#include "content/content.h"
-
-#include "windows/plot.h"
-#include "windows/bitmap.h"
-
-/**
- * Create a bitmap.
- *
- * \param width width of image in pixels
- * \param height width of image in pixels
- * \param state a flag word indicating the initial state
- * \return an opaque struct bitmap, or NULL on memory exhaustion
- */
-void *win32_bitmap_create(int width, int height, unsigned int state)
-{
- struct bitmap *bitmap;
- BITMAPV5HEADER *pbmi;
- HBITMAP windib;
- uint8_t *pixdata;
-
- LOG("width %d, height %d, state %u", width, height, state);
-
- pbmi = calloc(1, sizeof(BITMAPV5HEADER));
- if (pbmi == NULL) {
- return NULL;
- }
-
- pbmi->bV5Size = sizeof(BITMAPV5HEADER);
- pbmi->bV5Width = width;
- pbmi->bV5Height = -height;
- pbmi->bV5Planes = 1;
- pbmi->bV5BitCount = 32;
- pbmi->bV5Compression = BI_BITFIELDS;
-
- pbmi->bV5RedMask = 0xff; /* red mask */
- pbmi->bV5GreenMask = 0xff00; /* green mask */
- pbmi->bV5BlueMask = 0xff0000; /* blue mask */
- pbmi->bV5AlphaMask = 0xff000000; /* alpha mask */
-
- windib = CreateDIBSection(NULL, (BITMAPINFO *)pbmi, DIB_RGB_COLORS, (void **)&pixdata, NULL, 0);
-
- if (windib == NULL) {
- free(pbmi);
- return NULL;
- }
-
- bitmap = calloc(1 , sizeof(struct bitmap));
- if (bitmap == NULL) {
- DeleteObject(windib);
- free(pbmi);
- return NULL;
- }
-
- bitmap->width = width;
- bitmap->height = height;
- bitmap->windib = windib;
- bitmap->pbmi = pbmi;
- bitmap->pixdata = pixdata;
- if ((state & BITMAP_OPAQUE) != 0) {
- bitmap->opaque = true;
- } else {
- bitmap->opaque = false;
- }
-
- LOG("bitmap %p", bitmap);
-
- return bitmap;
-}
-
-
-/**
- * Return a pointer to the pixel data in a bitmap.
- *
- * The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
- * of rows. The width of a row in bytes is given by bitmap_get_rowstride().
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- * \return pointer to the pixel buffer
- */
-static unsigned char *bitmap_get_buffer(void *bitmap)
-{
- struct bitmap *bm = bitmap;
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return NULL;
- }
-
- return bm->pixdata;
-}
-
-
-/**
- * Find the width of a pixel row in bytes.
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- * \return width of a pixel row in the bitmap
- */
-static size_t bitmap_get_rowstride(void *bitmap)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return 0;
- }
-
- return (bm->width) * 4;
-}
-
-
-/**
- * Free a bitmap.
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- */
-void win32_bitmap_destroy(void *bitmap)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return;
- }
-
- DeleteObject(bm->windib);
- free(bm->pbmi);
- free(bm);
-}
-
-
-/**
- * Save a bitmap in the platform's native format.
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- * \param path pathname for file
- * \param flags flags controlling how the bitmap is saved.
- * \return true on success, false on error and error reported
- */
-static bool bitmap_save(void *bitmap, const char *path, unsigned flags)
-{
- return true;
-}
-
-
-/**
- * The bitmap image has changed, so flush any persistant cache.
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- */
-static void bitmap_modified(void *bitmap) {
-}
-
-/**
- * Sets whether a bitmap should be plotted opaque
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- * \param opaque whether the bitmap should be plotted opaque
- */
-static void bitmap_set_opaque(void *bitmap, bool opaque)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return;
- }
-
- LOG("setting bitmap %p to %s", bm, opaque ? "opaque" : "transparent");
- bm->opaque = opaque;
-}
-
-
-/**
- * Tests whether a bitmap has an opaque alpha channel
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- * \return whether the bitmap is opaque
- */
-static bool bitmap_test_opaque(void *bitmap)
-{
- int tst;
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return false;
- }
-
- tst = bm->width * bm->height;
-
- while (tst-- > 0) {
- if (bm->pixdata[(tst << 2) + 3] != 0xff) {
- LOG("bitmap %p has transparency", bm);
- return false;
- }
- }
- LOG("bitmap %p is opaque", bm);
- return true;
-}
-
-
-/**
- * Gets whether a bitmap should be plotted opaque
- *
- * \param bitmap a bitmap, as returned by bitmap_create()
- */
-static bool bitmap_get_opaque(void *bitmap)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return false;
- }
-
- return bm->opaque;
-}
-
-static int bitmap_get_width(void *bitmap)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return 0;
- }
-
- return(bm->width);
-}
-
-static int bitmap_get_height(void *bitmap)
-{
- struct bitmap *bm = bitmap;
-
- if (bitmap == NULL) {
- LOG("NULL bitmap!");
- return 0;
- }
-
- return(bm->height);
-}
-
-static size_t bitmap_get_bpp(void *bitmap)
-{
- return 4;
-}
-
-struct bitmap *bitmap_scale(struct bitmap *prescale, int width, int height)
-{
- struct bitmap *ret = malloc(sizeof(struct bitmap));
- int i, ii, v, vv;
- uint32_t *retpixdata, *inpixdata; /* 4 byte types for quicker
- * transfer */
- if (ret == NULL)
- return NULL;
-
- retpixdata = malloc(width * height * 4);
- if (retpixdata == NULL) {
- free(ret);
- return NULL;
- }
-
- inpixdata = (uint32_t *)prescale->pixdata;
- ret->pixdata = (uint8_t *)retpixdata;
- ret->height = height;
- ret->width = width;
- for (i = 0; i < height; i++) {
- v = i * width;
- vv = (int)((i * prescale->height) / height) * prescale->width;
- for (ii = 0; ii < width; ii++) {
- retpixdata[v + ii] = inpixdata[vv + (int)
- ((ii * prescale->width) / width)];
- }
- }
- return ret;
-
-}
-
-
-static nserror
-bitmap_render(struct bitmap *bitmap, struct hlcache_handle *content)
-{
- int width;
- int height;
- HDC hdc, bufferdc, minidc;
- struct bitmap *fsbitmap;
- struct redraw_context ctx = {
- .interactive = false,
- .background_images = true,
- .plot = &win_plotters
- };
-
- width = min(content_get_width(content), 1024);
- height = ((width * bitmap->height) + (bitmap->width / 2)) /
- bitmap->width;
-
- LOG("bitmap %p for content %p width %d, height %d",
- bitmap, content, width, height);
-
- /* create two memory device contexts to put the bitmaps in */
- bufferdc = CreateCompatibleDC(NULL);
- if ((bufferdc == NULL)) {
- return NSERROR_NOMEM;
- }
-
- minidc = CreateCompatibleDC(NULL);
- if ((minidc == NULL)) {
- DeleteDC(bufferdc);
- return NSERROR_NOMEM;
- }
-
- /* create a full size bitmap and plot into it */
- fsbitmap = win32_bitmap_create(width, height, BITMAP_NEW | BITMAP_CLEAR_MEMORY | BITMAP_OPAQUE);
-
- SelectObject(bufferdc, fsbitmap->windib);
-
- hdc = plot_hdc;
- plot_hdc = bufferdc;
- /* render the content */
- content_scaled_redraw(content, width, height, &ctx);
- plot_hdc = hdc;
-
- /* scale bitmap bufferbm into minibm */
- SelectObject(minidc, bitmap->windib);
-
- bitmap->opaque = true;
-
- StretchBlt(minidc, 0, 0, bitmap->width, bitmap->height, bufferdc, 0, 0, width, height, SRCCOPY);
-
- DeleteDC(bufferdc);
- DeleteDC(minidc);
- win32_bitmap_destroy(fsbitmap);
-
- return NSERROR_OK;
-}
-
-static struct gui_bitmap_table bitmap_table = {
- .create = win32_bitmap_create,
- .destroy = win32_bitmap_destroy,
- .set_opaque = bitmap_set_opaque,
- .get_opaque = bitmap_get_opaque,
- .test_opaque = bitmap_test_opaque,
- .get_buffer = bitmap_get_buffer,
- .get_rowstride = bitmap_get_rowstride,
- .get_width = bitmap_get_width,
- .get_height = bitmap_get_height,
- .get_bpp = bitmap_get_bpp,
- .save = bitmap_save,
- .modified = bitmap_modified,
- .render = bitmap_render,
-};
-
-struct gui_bitmap_table *win32_bitmap_table = &bitmap_table;
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