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-rw-r--r--windows/plot.c868
1 files changed, 0 insertions, 868 deletions
diff --git a/windows/plot.c b/windows/plot.c
deleted file mode 100644
index 86870ea4e..000000000
--- a/windows/plot.c
+++ /dev/null
@@ -1,868 +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/>.
- */
-
-#include "utils/config.h"
-#include <sys/types.h>
-#include <stdint.h>
-#include <string.h>
-#include <limits.h>
-#include <math.h>
-#include <windows.h>
-
-#include "utils/log.h"
-#include "utils/utf8.h"
-#include "utils/utils.h"
-#include "desktop/mouse.h"
-#include "desktop/gui_window.h"
-#include "desktop/plotters.h"
-
-#include "windows/bitmap.h"
-#include "windows/font.h"
-#include "windows/gui.h"
-#include "windows/plot.h"
-
-
-/* set NSWS_PLOT_DEBUG to 0 for no debugging, 1 for debugging */
-/* #define NSWS_PLOT_DEBUG */
-
-#ifdef NSWS_PLOT_DEBUG
-#define PLOT_LOG(x...) LOG(x)
-#else
-#define PLOT_LOG(x...) ((void) 0)
-#endif
-
-HDC plot_hdc;
-
-static RECT plot_clip; /* currently set clipping rectangle */
-
-static bool clip(const struct rect *clip)
-{
- PLOT_LOG("clip %d,%d to %d,%d", clip->x0, clip->y0, clip->x1, clip->y1);
-
- plot_clip.left = clip->x0;
- plot_clip.top = clip->y0;
- plot_clip.right = clip->x1 + 1; /* co-ordinates are exclusive */
- plot_clip.bottom = clip->y1 + 1; /* co-ordinates are exclusive */
-
- return true;
-}
-
-static bool line(int x0, int y0, int x1, int y1, const plot_style_t *style)
-{
- PLOT_LOG("from %d,%d to %d,%d", x0, y0, x1, y1);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- COLORREF col = (DWORD)(style->stroke_colour & 0x00FFFFFF);
- /* windows 0x00bbggrr */
- DWORD penstyle = PS_GEOMETRIC | ((style->stroke_type ==
- PLOT_OP_TYPE_DOT) ? PS_DOT :
- (style->stroke_type == PLOT_OP_TYPE_DASH) ? PS_DASH:
- 0);
- LOGBRUSH lb = {BS_SOLID, col, 0};
- HPEN pen = ExtCreatePen(penstyle, style->stroke_width, &lb, 0, NULL);
- if (pen == NULL) {
- DeleteObject(clipregion);
- return false;
- }
- HGDIOBJ bak = SelectObject(plot_hdc, (HGDIOBJ) pen);
- if (bak == NULL) {
- DeleteObject(pen);
- DeleteObject(clipregion);
- return false;
- }
-/*
- RECT r;
- r.left = x0;
- r.top = y0;
- r.right = x1;
- r.bottom = y1;
-*/
- SelectClipRgn(plot_hdc, clipregion);
-
- MoveToEx(plot_hdc, x0, y0, (LPPOINT) NULL);
-
- LineTo(plot_hdc, x1, y1);
-
- SelectClipRgn(plot_hdc, NULL);
- pen = SelectObject(plot_hdc, bak);
-
- DeleteObject(pen);
- DeleteObject(clipregion);
-
- return true;
-}
-
-static bool rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style)
-{
- PLOT_LOG("rectangle from %d,%d to %d,%d", x0, y0, x1, y1);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- x1++;
- y1++;
-
- COLORREF pencol = (DWORD)(style->stroke_colour & 0x00FFFFFF);
- DWORD penstyle = PS_GEOMETRIC |
- (style->stroke_type == PLOT_OP_TYPE_DOT ? PS_DOT :
- (style->stroke_type == PLOT_OP_TYPE_DASH ? PS_DASH :
- (style->stroke_type == PLOT_OP_TYPE_NONE ? PS_NULL :
- 0)));
- LOGBRUSH lb = {BS_SOLID, pencol, 0};
- LOGBRUSH lb1 = {BS_SOLID, style->fill_colour, 0};
- if (style->fill_type == PLOT_OP_TYPE_NONE)
- lb1.lbStyle = BS_HOLLOW;
-
- HPEN pen = ExtCreatePen(penstyle, style->stroke_width, &lb, 0, NULL);
- if (pen == NULL) {
- return false;
- }
- HGDIOBJ penbak = SelectObject(plot_hdc, (HGDIOBJ) pen);
- if (penbak == NULL) {
- DeleteObject(pen);
- return false;
- }
- HBRUSH brush = CreateBrushIndirect(&lb1);
- if (brush == NULL) {
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- return false;
- }
- HGDIOBJ brushbak = SelectObject(plot_hdc, (HGDIOBJ) brush);
- if (brushbak == NULL) {
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- DeleteObject(brush);
- return false;
- }
-
- SelectClipRgn(plot_hdc, clipregion);
-
- Rectangle(plot_hdc, x0, y0, x1, y1);
-
- pen = SelectObject(plot_hdc, penbak);
- brush = SelectObject(plot_hdc, brushbak);
- SelectClipRgn(plot_hdc, NULL);
- DeleteObject(pen);
- DeleteObject(brush);
- DeleteObject(clipregion);
-
- return true;
-}
-
-
-static bool polygon(const int *p, unsigned int n, const plot_style_t *style)
-{
- PLOT_LOG("polygon %d points", n);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- POINT points[n];
- unsigned int i;
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- COLORREF pencol = (DWORD)(style->fill_colour & 0x00FFFFFF);
- COLORREF brushcol = (DWORD)(style->fill_colour & 0x00FFFFFF);
- HPEN pen = CreatePen(PS_GEOMETRIC | PS_NULL, 1, pencol);
- if (pen == NULL) {
- DeleteObject(clipregion);
- return false;
- }
- HPEN penbak = SelectObject(plot_hdc, pen);
- if (penbak == NULL) {
- DeleteObject(clipregion);
- DeleteObject(pen);
- return false;
- }
- HBRUSH brush = CreateSolidBrush(brushcol);
- if (brush == NULL) {
- DeleteObject(clipregion);
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- return false;
- }
- HBRUSH brushbak = SelectObject(plot_hdc, brush);
- if (brushbak == NULL) {
- DeleteObject(clipregion);
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- DeleteObject(brush);
- return false;
- }
- SetPolyFillMode(plot_hdc, WINDING);
- for (i = 0; i < n; i++) {
- points[i].x = (long) p[2 * i];
- points[i].y = (long) p[2 * i + 1];
-
- PLOT_LOG("%ld,%ld ", points[i].x, points[i].y);
- }
-
- SelectClipRgn(plot_hdc, clipregion);
-
- if (n >= 2)
- Polygon(plot_hdc, points, n);
-
- SelectClipRgn(plot_hdc, NULL);
-
- pen = SelectObject(plot_hdc, penbak);
- brush = SelectObject(plot_hdc, brushbak);
- DeleteObject(clipregion);
- DeleteObject(pen);
- DeleteObject(brush);
-
- return true;
-}
-
-
-static bool text(int x, int y, const char *text, size_t length,
- const plot_font_style_t *style)
-{
- PLOT_LOG("words %s at %d,%d", text, x, y);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- HFONT fontbak, font = get_font(style);
- if (font == NULL) {
- DeleteObject(clipregion);
- return false;
- }
- int wlen;
- SIZE s;
- LPWSTR wstring;
- fontbak = (HFONT) SelectObject(plot_hdc, font);
- GetTextExtentPoint(plot_hdc, text, length, &s);
-
-/*
- RECT r;
- r.left = x;
- r.top = y - (3 * s.cy) / 4;
- r.right = x + s.cx;
- r.bottom = y + s.cy / 4;
-*/
- SelectClipRgn(plot_hdc, clipregion);
-
- SetTextAlign(plot_hdc, TA_BASELINE | TA_LEFT);
- if ((style->background & 0xFF000000) != 0x01000000)
- /* 100% alpha */
- SetBkColor(plot_hdc, (DWORD) (style->background & 0x00FFFFFF));
- SetBkMode(plot_hdc, TRANSPARENT);
- SetTextColor(plot_hdc, (DWORD) (style->foreground & 0x00FFFFFF));
-
- wlen = MultiByteToWideChar(CP_UTF8, 0, text, length, NULL, 0);
- wstring = malloc(2 * (wlen + 1));
- if (wstring == NULL) {
- return false;
- }
- MultiByteToWideChar(CP_UTF8, 0, text, length, wstring, wlen);
- TextOutW(plot_hdc, x, y, wstring, wlen);
-
- SelectClipRgn(plot_hdc, NULL);
- free(wstring);
- font = SelectObject(plot_hdc, fontbak);
- DeleteObject(clipregion);
- DeleteObject(font);
-
- return true;
-}
-
-static bool disc(int x, int y, int radius, const plot_style_t *style)
-{
- PLOT_LOG("disc at %d,%d radius %d", x, y, radius);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- COLORREF col = (DWORD)((style->fill_colour | style->stroke_colour)
- & 0x00FFFFFF);
- HPEN pen = CreatePen(PS_GEOMETRIC | PS_SOLID, 1, col);
- if (pen == NULL) {
- DeleteObject(clipregion);
- return false;
- }
- HGDIOBJ penbak = SelectObject(plot_hdc, (HGDIOBJ) pen);
- if (penbak == NULL) {
- DeleteObject(clipregion);
- DeleteObject(pen);
- return false;
- }
- HBRUSH brush = CreateSolidBrush(col);
- if (brush == NULL) {
- DeleteObject(clipregion);
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- return false;
- }
- HGDIOBJ brushbak = SelectObject(plot_hdc, (HGDIOBJ) brush);
- if (brushbak == NULL) {
- DeleteObject(clipregion);
- SelectObject(plot_hdc, penbak);
- DeleteObject(pen);
- DeleteObject(brush);
- return false;
- }
-/*
- RECT r;
- r.left = x - radius;
- r.top = y - radius;
- r.right = x + radius;
- r.bottom = y + radius;
-*/
- SelectClipRgn(plot_hdc, clipregion);
-
- if (style->fill_type == PLOT_OP_TYPE_NONE)
- Arc(plot_hdc, x - radius, y - radius, x + radius, y + radius,
- x - radius, y - radius,
- x - radius, y - radius);
- else
- Ellipse(plot_hdc, x - radius, y - radius, x + radius, y + radius);
-
- SelectClipRgn(plot_hdc, NULL);
- pen = SelectObject(plot_hdc, penbak);
- brush = SelectObject(plot_hdc, brushbak);
- DeleteObject(clipregion);
- DeleteObject(pen);
- DeleteObject(brush);
-
- return true;
-}
-
-static bool arc(int x, int y, int radius, int angle1, int angle2,
- const plot_style_t *style)
-{
- PLOT_LOG("arc centre %d,%d radius %d from %d to %d", x, y, radius,
- angle1, angle2);
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- HRGN clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- COLORREF col = (DWORD)(style->stroke_colour & 0x00FFFFFF);
- HPEN pen = CreatePen(PS_GEOMETRIC | PS_SOLID, 1, col);
- if (pen == NULL) {
- DeleteObject(clipregion);
- return false;
- }
- HGDIOBJ penbak = SelectObject(plot_hdc, (HGDIOBJ) pen);
- if (penbak == NULL) {
- DeleteObject(clipregion);
- DeleteObject(pen);
- return false;
- }
-
- int q1, q2;
- double a1=1.0, a2=1.0, b1=1.0, b2=1.0;
- q1 = (int) ((angle1 + 45) / 90) - 45;
- q2 = (int) ((angle2 + 45) / 90) - 45;
- while (q1 > 4)
- q1 -= 4;
- while (q2 > 4)
- q2 -= 4;
- while (q1 <= 0)
- q1 += 4;
- while (q2 <= 0)
- q2 += 4;
- angle1 = ((angle1 + 45) % 90) - 45;
- angle2 = ((angle2 + 45) % 90) - 45;
-
- switch(q1) {
- case 1:
- a1 = 1.0;
- b1 = -tan((M_PI / 180) * angle1);
- break;
- case 2:
- b1 = -1.0;
- a1 = -tan((M_PI / 180) * angle1);
- break;
- case 3:
- a1 = -1.0;
- b1 = tan((M_PI / 180) * angle1);
- break;
- case 4:
- b1 = 1.0;
- a1 = tan((M_PI / 180) * angle1);
- break;
- }
-
- switch(q2) {
- case 1:
- a2 = 1.0;
- b2 = -tan((M_PI / 180) * angle2);
- break;
- case 2:
- b2 = -1.0;
- a2 = -tan((M_PI / 180) * angle2);
- break;
- case 3:
- a2 = -1.0;
- b2 = tan((M_PI / 180) * angle2);
- break;
- case 4:
- b2 = 1.0;
- a2 = tan((M_PI / 180) * angle2);
- break;
- }
-
-/*
- RECT r;
- r.left = x - radius;
- r.top = y - radius;
- r.right = x + radius;
- r.bottom = y + radius;
-*/
- SelectClipRgn(plot_hdc, clipregion);
-
- Arc(plot_hdc, x - radius, y - radius, x + radius, y + radius,
- x + (int)(a1 * radius), y + (int)(b1 * radius),
- x + (int)(a2 * radius), y + (int)(b2 * radius));
-
- SelectClipRgn(plot_hdc, NULL);
- pen = SelectObject(plot_hdc, penbak);
- DeleteObject(clipregion);
- DeleteObject(pen);
-
- return true;
-}
-
-static bool
-plot_block(COLORREF col, int x, int y, int width, int height)
-{
- HRGN clipregion;
- HGDIOBJ original = NULL;
-
- /* Bail early if we can */
- if ((x >= plot_clip.right) ||
- ((x + width) < plot_clip.left) ||
- (y >= plot_clip.bottom) ||
- ((y + height) < plot_clip.top)) {
- /* Image completely outside clip region */
- return true;
- }
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- SelectClipRgn(plot_hdc, clipregion);
-
- /* Saving the original pen object */
- original = SelectObject(plot_hdc,GetStockObject(DC_PEN));
-
- SelectObject(plot_hdc, GetStockObject(DC_PEN));
- SelectObject(plot_hdc, GetStockObject(DC_BRUSH));
- SetDCPenColor(plot_hdc, col);
- SetDCBrushColor(plot_hdc, col);
- Rectangle(plot_hdc, x, y, width, height);
-
- SelectObject(plot_hdc,original); /* Restoring the original pen object */
-
- DeleteObject(clipregion);
-
- return true;
-
-}
-
-/* blunt force truma way of achiving alpha blended plotting */
-static bool
-plot_alpha_bitmap(HDC hdc,
- struct bitmap *bitmap,
- int x, int y,
- int width, int height)
-{
-#ifdef WINDOWS_GDI_ALPHA_WORKED
- BLENDFUNCTION blnd = { AC_SRC_OVER, 0, 0xff, AC_SRC_ALPHA };
- HDC bmihdc;
- bool bltres;
- bmihdc = CreateCompatibleDC(hdc);
- SelectObject(bmihdc, bitmap->windib);
- bltres = AlphaBlend(hdc,
- x, y,
- width, height,
- bmihdc,
- 0, 0,
- bitmap->width, bitmap->height,
- blnd);
- DeleteDC(bmihdc);
- return bltres;
-#else
- HDC Memhdc;
- BITMAPINFOHEADER bmih;
- int v, vv, vi, h, hh, width4, transparency;
- unsigned char alpha;
- bool isscaled = false; /* set if the scaled bitmap requires freeing */
- BITMAP MemBM;
- BITMAPINFO *bmi;
- HBITMAP MemBMh;
-
- PLOT_LOG("%p bitmap %d,%d width %d height %d", bitmap, x, y, width, height);
- PLOT_LOG("clipped %ld,%ld to %ld,%ld",plot_clip.left, plot_clip.top, plot_clip.right, plot_clip.bottom);
-
- Memhdc = CreateCompatibleDC(hdc);
- if (Memhdc == NULL) {
- return false;
- }
-
- if ((bitmap->width != width) ||
- (bitmap->height != height)) {
- PLOT_LOG("scaling from %d,%d to %d,%d",
- bitmap->width, bitmap->height, width, height);
- bitmap = bitmap_scale(bitmap, width, height);
- if (bitmap == NULL)
- return false;
- isscaled = true;
- }
-
- bmi = (BITMAPINFO *) malloc(sizeof(BITMAPINFOHEADER) +
- (bitmap->width * bitmap->height * 4));
- if (bmi == NULL) {
- DeleteDC(Memhdc);
- return false;
- }
-
- MemBMh = CreateCompatibleBitmap(hdc, bitmap->width, bitmap->height);
- if (MemBMh == NULL){
- free(bmi);
- DeleteDC(Memhdc);
- return false;
- }
-
- /* save 'background' data for alpha channel work */
- SelectObject(Memhdc, MemBMh);
- BitBlt(Memhdc, 0, 0, bitmap->width, bitmap->height, hdc, x, y, SRCCOPY);
- GetObject(MemBMh, sizeof(BITMAP), &MemBM);
-
- bmih.biSize = sizeof(bmih);
- bmih.biWidth = bitmap->width;
- bmih.biHeight = bitmap->height;
- bmih.biPlanes = 1;
- bmih.biBitCount = 32;
- bmih.biCompression = BI_RGB;
- bmih.biSizeImage = 4 * bitmap->height * bitmap->width;
- bmih.biXPelsPerMeter = 3600; /* 100 dpi */
- bmih.biYPelsPerMeter = 3600;
- bmih.biClrUsed = 0;
- bmih.biClrImportant = 0;
- bmi->bmiHeader = bmih;
-
- GetDIBits(hdc, MemBMh, 0, bitmap->height, bmi->bmiColors, bmi,
- DIB_RGB_COLORS);
-
- /* then load 'foreground' bits from bitmap->pixdata */
-
- width4 = bitmap->width * 4;
- for (v = 0, vv = 0, vi = (bitmap->height - 1) * width4;
- v < bitmap->height;
- v++, vv += bitmap->width, vi -= width4) {
- for (h = 0, hh = 0; h < bitmap->width; h++, hh += 4) {
- alpha = bitmap->pixdata[vi + hh + 3];
-/* multiplication of alpha value; subject to profiling could be optional */
- if (alpha == 0xFF) {
- bmi->bmiColors[vv + h].rgbBlue =
- bitmap->pixdata[vi + hh + 2];
- bmi->bmiColors[vv + h].rgbGreen =
- bitmap->pixdata[vi + hh + 1];
- bmi->bmiColors[vv + h].rgbRed =
- bitmap->pixdata[vi + hh];
- } else if (alpha > 0) {
- transparency = 0x100 - alpha;
- bmi->bmiColors[vv + h].rgbBlue =
- (bmi->bmiColors[vv + h].rgbBlue
- * transparency +
- (bitmap->pixdata[vi + hh + 2]) *
- alpha) >> 8;
- bmi->bmiColors[vv + h].rgbGreen =
- (bmi->bmiColors[vv + h].
- rgbGreen
- * transparency +
- (bitmap->pixdata[vi + hh + 1]) *
- alpha) >> 8;
- bmi->bmiColors[vv + h].rgbRed =
- (bmi->bmiColors[vv + h].rgbRed
- * transparency +
- bitmap->pixdata[vi + hh]
- * alpha) >> 8;
- }
- }
- }
- SetDIBitsToDevice(hdc, x, y, bitmap->width, bitmap->height,
- 0, 0, 0, bitmap->height,
- (const void *) bmi->bmiColors,
- bmi, DIB_RGB_COLORS);
-
- if (isscaled && bitmap && bitmap->pixdata) {
- free(bitmap->pixdata);
- free(bitmap);
- }
-
- free(bmi);
- DeleteObject(MemBMh);
- DeleteDC(Memhdc);
- return true;
-#endif
-}
-
-
-static bool
-plot_bitmap(struct bitmap *bitmap, int x, int y, int width, int height)
-{
- int bltres;
- HRGN clipregion;
-
- /* Bail early if we can */
- if ((x >= plot_clip.right) ||
- ((x + width) < plot_clip.left) ||
- (y >= plot_clip.bottom) ||
- ((y + height) < plot_clip.top)) {
- /* Image completely outside clip region */
- return true;
- }
-
- /* ensure the plot HDC is set */
- if (plot_hdc == NULL) {
- LOG("HDC not set on call to plotters");
- return false;
- }
-
- clipregion = CreateRectRgnIndirect(&plot_clip);
- if (clipregion == NULL) {
- return false;
- }
-
- SelectClipRgn(plot_hdc, clipregion);
-
- if (bitmap->opaque) {
- /* opaque bitmap */
- if ((bitmap->width == width) &&
- (bitmap->height == height)) {
- /* unscaled */
- bltres = SetDIBitsToDevice(plot_hdc,
- x, y,
- width, height,
- 0, 0,
- 0,
- height,
- bitmap->pixdata,
- (BITMAPINFO *)bitmap->pbmi,
- DIB_RGB_COLORS);
- } else {
- /* scaled */
- SetStretchBltMode(plot_hdc, COLORONCOLOR);
- bltres = StretchDIBits(plot_hdc,
- x, y,
- width, height,
- 0, 0,
- bitmap->width, bitmap->height,
- bitmap->pixdata,
- (BITMAPINFO *)bitmap->pbmi,
- DIB_RGB_COLORS,
- SRCCOPY);
-
-
- }
- } else {
- /* Bitmap with alpha.*/
- bltres = plot_alpha_bitmap(plot_hdc, bitmap, x, y, width, height);
- }
-
- PLOT_LOG("bltres = %d", bltres);
-
- DeleteObject(clipregion);
-
- return true;
-
-}
-
-static bool
-windows_plot_bitmap(int x, int y,
- int width, int height,
- struct bitmap *bitmap, colour bg,
- bitmap_flags_t flags)
-{
- int xf,yf;
- bool repeat_x = (flags & BITMAPF_REPEAT_X);
- bool repeat_y = (flags & BITMAPF_REPEAT_Y);
-
- /* Bail early if we can */
-
- PLOT_LOG("Plotting %p at %d,%d by %d,%d",bitmap, x,y,width,height);
-
- if (bitmap == NULL) {
- LOG("Passed null bitmap!");
- return true;
- }
-
- /* check if nothing to plot */
- if (width == 0 || height == 0)
- return true;
-
- /* x and y define coordinate of top left of of the initial explicitly
- * placed tile. The width and height are the image scaling and the
- * bounding box defines the extent of the repeat (which may go in all
- * four directions from the initial tile).
- */
-
- if (!(repeat_x || repeat_y)) {
- /* Not repeating at all, so just plot it */
- if ((bitmap->width == 1) && (bitmap->height == 1)) {
- if ((*(bitmap->pixdata + 3) & 0xff) == 0) {
- return true;
- }
- return plot_block((*(COLORREF *)bitmap->pixdata) & 0xffffff, x, y, x + width, y + height);
-
- } else {
- return plot_bitmap(bitmap, x, y, width, height);
- }
- }
-
- /* Optimise tiled plots of 1x1 bitmaps by replacing with a flat fill
- * of the area. Can only be done when image is fully opaque. */
- if ((bitmap->width == 1) && (bitmap->height == 1)) {
- if ((*(COLORREF *)bitmap->pixdata & 0xff000000) != 0) {
- return plot_block((*(COLORREF *)bitmap->pixdata) & 0xffffff,
- plot_clip.left,
- plot_clip.top,
- plot_clip.right,
- plot_clip.bottom);
- }
- }
-
- /* Optimise tiled plots of bitmaps scaled to 1x1 by replacing with
- * a flat fill of the area. Can only be done when image is fully
- * opaque. */
- if ((width == 1) && (height == 1)) {
- if (bitmap->opaque) {
- /** TODO: Currently using top left pixel. Maybe centre
- * pixel or average value would be better. */
- return plot_block((*(COLORREF *)bitmap->pixdata) & 0xffffff,
- plot_clip.left,
- plot_clip.top,
- plot_clip.right,
- plot_clip.bottom);
- }
- }
-
- PLOT_LOG("Tiled plotting %d,%d by %d,%d",x,y,width,height);
- PLOT_LOG("clipped %ld,%ld to %ld,%ld",plot_clip.left, plot_clip.top, plot_clip.right, plot_clip.bottom);
-
- /* get left most tile position */
- if (repeat_x)
- for (; x > plot_clip.left; x -= width);
-
- /* get top most tile position */
- if (repeat_y)
- for (; y > plot_clip.top; y -= height);
-
- PLOT_LOG("repeat from %d,%d to %ld,%ld", x, y, plot_clip.right, plot_clip.bottom);
-
- /* tile down and across to extents */
- for (xf = x; xf < plot_clip.right; xf += width) {
- for (yf = y; yf < plot_clip.bottom; yf += height) {
-
- plot_bitmap(bitmap, xf, yf, width, height);
- if (!repeat_y)
- break;
- }
- if (!repeat_x)
- break;
- }
- return true;
-}
-
-
-static bool flush(void)
-{
- PLOT_LOG("flush unimplemented");
- return true;
-}
-
-static bool path(const float *p, unsigned int n, colour fill, float width,
- colour c, const float transform[6])
-{
- PLOT_LOG("path unimplemented");
- return true;
-}
-
-const struct plotter_table win_plotters = {
- .rectangle = rectangle,
- .line = line,
- .polygon = polygon,
- .clip = clip,
- .text = text,
- .disc = disc,
- .arc = arc,
- .bitmap = windows_plot_bitmap,
- .flush = flush,
- .path = path,
- .option_knockout = true,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-30 10:14:11 +0000