dave/openttd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add variants of Gfx draw functions which take a DPI

Browse Source
This commit is contained in:
Jonathan G Rennison
2022-11-10 18:58:33 +00:00
parent 3b7352132b
commit 5dcffe3142
3 changed files with 25 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/gfx.cpp
View File

@@ -134,6 +134,7 @@ uint32 _gfx_debug_flags;
* Applies a certain FillRectMode-operation to a rectangle [left, right] x [top, bottom] on the screen.
*
* @pre dpi->zoom == ZOOM_LVL_NORMAL, right >= left, bottom >= top
* @param dpi Draw pixel info
* @param left Minimum X (inclusive)
* @param top Minimum Y (inclusive)
* @param right Maximum X (inclusive)
@@ -144,10 +145,9 @@ uint32 _gfx_debug_flags;
* FILLRECT_CHECKER: Like FILLRECT_OPAQUE, but only draw every second pixel (used to grey out things)
* FILLRECT_RECOLOUR: Apply a recolour sprite to every pixel in the rectangle currently on screen
*/
void GfxFillRect(int left, int top, int right, int bottom, int colour, FillRectMode mode)
void GfxFillRect(const DrawPixelInfo *dpi, int left, int top, int right, int bottom, int colour, FillRectMode mode)
{
Blitter *blitter = BlitterFactory::GetCurrentBlitter();
const DrawPixelInfo *dpi = _cur_dpi;
void *dst;
const int otop = top;
const int oleft = left;
@@ -406,7 +406,7 @@ static inline void GfxDoDrawLine(void *video, int x, int y, int x2, int y2, int
* @return True if the line is likely to be visible, false if it's certainly
* invisible.
*/
static inline bool GfxPreprocessLine(DrawPixelInfo *dpi, int &x, int &y, int &x2, int &y2, int width)
static inline bool GfxPreprocessLine(const DrawPixelInfo *dpi, int &x, int &y, int &x2, int &y2, int width)
{
x -= dpi->left;
x2 -= dpi->left;
@@ -421,17 +421,15 @@ static inline bool GfxPreprocessLine(DrawPixelInfo *dpi, int &x, int &y, int &x2
return true;
}
void GfxDrawLine(int x, int y, int x2, int y2, int colour, int width, int dash)
void GfxDrawLine(const DrawPixelInfo *dpi, int x, int y, int x2, int y2, int colour, int width, int dash)
{
DrawPixelInfo *dpi = _cur_dpi;
if (GfxPreprocessLine(dpi, x, y, x2, y2, width)) {
GfxDoDrawLine(dpi->dst_ptr, x, y, x2, y2, dpi->width, dpi->height, colour, width, dash);
}
}
void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int colour)
void GfxDrawLineUnscaled(const DrawPixelInfo *dpi, int x, int y, int x2, int y2, int colour)
{
DrawPixelInfo *dpi = _cur_dpi;
if (GfxPreprocessLine(dpi, x, y, x2, y2, 1)) {
GfxDoDrawLine(dpi->dst_ptr,
UnScaleByZoom(x, dpi->zoom), UnScaleByZoom(y, dpi->zoom),
@@ -444,6 +442,7 @@ void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int colour)
* Draws the projection of a parallelepiped.
* This can be used to draw boxes in world coordinates.
*
* @param dpi Draw pixel info.
* @param x Screen X-coordinate of top front corner.
* @param y Screen Y-coordinate of top front corner.
* @param dx1 Screen X-length of first edge.
@@ -453,7 +452,7 @@ void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int colour)
* @param dx3 Screen X-length of third edge.
* @param dy3 Screen Y-length of third edge.
*/
void DrawBox(int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3)
void DrawBox(const DrawPixelInfo *dpi, int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3)
{
/* ....
* .. ....
@@ -472,16 +471,16 @@ void DrawBox(int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3)
static const byte colour = PC_WHITE;
GfxDrawLineUnscaled(x, y, x + dx1, y + dy1, colour);
GfxDrawLineUnscaled(x, y, x + dx2, y + dy2, colour);
GfxDrawLineUnscaled(x, y, x + dx3, y + dy3, colour);
GfxDrawLineUnscaled(dpi, x, y, x + dx1, y + dy1, colour);
GfxDrawLineUnscaled(dpi, x, y, x + dx2, y + dy2, colour);
GfxDrawLineUnscaled(dpi, x, y, x + dx3, y + dy3, colour);
GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, colour);
GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, colour);
GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, colour);
GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, colour);
GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, colour);
GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, colour);
GfxDrawLineUnscaled(dpi, x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, colour);
GfxDrawLineUnscaled(dpi, x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, colour);
GfxDrawLineUnscaled(dpi, x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, colour);
GfxDrawLineUnscaled(dpi, x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, colour);
GfxDrawLineUnscaled(dpi, x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, colour);
GfxDrawLineUnscaled(dpi, x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, colour);
}
/**