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-rw-r--r--html/en/history.html8
-rw-r--r--src/cd_freetype.mak4
-rw-r--r--src/drv/cdirgb.c8
-rw-r--r--src/gdiplus/cdwdbufp.cpp28
-rw-r--r--src/sim/cd_truetype.h2
-rw-r--r--src/sim/sim_text.c61
-rw-r--r--src/win32/cdwdbuf.c18
-rw-r--r--src/x11/cdxdbuf.c18
8 files changed, 119 insertions, 28 deletions
diff --git a/html/en/history.html b/html/en/history.html
index 2b39f67..165a75b 100644
--- a/html/en/history.html
+++ b/html/en/history.html
@@ -10,6 +10,14 @@
<body>
<h1>History of Changes</h1>
+<h3>CVS (13/Jun/2008)</h3>
+<ul>
+ <li><span style="color: #008000">Changed:</span>
+ CD_DBUFFER now activates the buffered canvas before creating the image
+ canvas. If size is 0 then uses 1 and avoid to fail during creation.</li>
+ <li><span style="color: #FF0000">Fixed:</span> <strong>cdCanvasText</strong>
+ for CD_IMAGERGB driver when the foreground color has alpha.</li>
+</ul>
<h3>Version 5.1.1 (15/Dec/2008)</h3>
<ul>
<li><span style="color: #FF0000">Fixed:</span> CDLua binding functions
diff --git a/src/cd_freetype.mak b/src/cd_freetype.mak
index 857c5b2..9d67e8a 100644
--- a/src/cd_freetype.mak
+++ b/src/cd_freetype.mak
@@ -30,6 +30,10 @@ ifneq ($(findstring Win, $(TEC_SYSNAME)), )
LIBNAME = freetype6
endif
+ifneq ($(findstring gcc, $(TEC_UNAME)), )
+ LIBNAME = freetype
+endif
+
ifneq ($(findstring bc5, $(TEC_UNAME)), )
FLAGS = -w-8004
endif
diff --git a/src/drv/cdirgb.c b/src/drv/cdirgb.c
index 9fbb540..c590dcf 100644
--- a/src/drv/cdirgb.c
+++ b/src/drv/cdirgb.c
@@ -56,7 +56,7 @@ struct _cdCtxCanvas
#define _sNormX(_ctxcanvas, _x) (_x < 0? 0: _x < _ctxcanvas->canvas->w? _x: _ctxcanvas->canvas->w-1)
#define _sNormY(_ctxcanvas, _y) (_y < 0? 0: _y < _ctxcanvas->canvas->h? _y: _ctxcanvas->canvas->h-1)
-#define RGBA_COMPOSE(_SRC, _SRC_ALPHA, _DST, _TMP_MULTI, _TMP_ALPHA) (unsigned char)(((_SRC_ALPHA)*(_SRC) + (_TMP_MULTI)*(_DST)) / (_TMP_ALPHA))
+#define RGB_COMPOSE(_SRC, _SRC_ALPHA, _DST, _TMP_MULTI, _TMP_ALPHA) (unsigned char)(((_SRC_ALPHA)*(_SRC) + (_TMP_MULTI)*(_DST)) / (_TMP_ALPHA))
#define RGBA_COLOR_COMBINE(_ctxcanvas, _pdst_red, _pdst_green, _pdst_blue, _pdst_alpha, _src_red, _src_green, _src_blue, _src_alpha) \
{ \
@@ -87,9 +87,9 @@ struct _cdCtxCanvas
/* Closed Compositing Formulas for SRC over DST, Colors Not Premultiplied by Alpha: */ \
int _tmp_multi = *_pdst_alpha * (255 - _src_alpha); \
int _tmp_alpha = _src_alpha + _tmp_multi; \
- _tmp_red = RGBA_COMPOSE(_src_red, _src_alpha, *_pdst_red, _tmp_multi, _tmp_alpha); \
- _tmp_green = RGBA_COMPOSE(_src_green, _src_alpha, *_pdst_green, _tmp_multi, _tmp_alpha); \
- _tmp_blue = RGBA_COMPOSE(_src_blue, _src_alpha, *_pdst_blue, _tmp_multi, _tmp_alpha); \
+ _tmp_red = RGB_COMPOSE(_src_red, _src_alpha, *_pdst_red, _tmp_multi, _tmp_alpha); \
+ _tmp_green = RGB_COMPOSE(_src_green, _src_alpha, *_pdst_green, _tmp_multi, _tmp_alpha); \
+ _tmp_blue = RGB_COMPOSE(_src_blue, _src_alpha, *_pdst_blue, _tmp_multi, _tmp_alpha); \
*_pdst_alpha = (unsigned char)(_tmp_alpha / 255); \
} \
} \
diff --git a/src/gdiplus/cdwdbufp.cpp b/src/gdiplus/cdwdbufp.cpp
index 6d968b2..95cfe2e 100644
--- a/src/gdiplus/cdwdbufp.cpp
+++ b/src/gdiplus/cdwdbufp.cpp
@@ -62,29 +62,34 @@ static void cdflush(cdCtxCanvas* ctxcanvas)
static int cdactivate(cdCtxCanvas* ctxcanvas)
{
+ int w, h;
cdCanvas* canvas_dbuffer = ctxcanvas->canvas_dbuffer;
/* this is done in the canvas_dbuffer context */
/* this will update canvas size */
cdCanvasActivate(canvas_dbuffer);
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
/* check if the size changed */
- if (canvas_dbuffer->w != ctxcanvas->canvas->w ||
- canvas_dbuffer->h != ctxcanvas->canvas->h)
+ if (w != ctxcanvas->canvas->w ||
+ h != ctxcanvas->canvas->h)
{
delete ctxcanvas->graphics;
delete ctxcanvas->bitmap;
if (ctxcanvas->bitmap_dbuffer) delete ctxcanvas->bitmap_dbuffer;
ctxcanvas->bitmap_dbuffer = NULL;
- Bitmap* bitmap = new Bitmap(canvas_dbuffer->w, canvas_dbuffer->h, PixelFormat24bppRGB);
+ Bitmap* bitmap = new Bitmap(w, h, PixelFormat24bppRGB);
bitmap->SetResolution((REAL)(canvas_dbuffer->xres*25.4), (REAL)(canvas_dbuffer->yres*25.4));
ctxcanvas->bitmap = bitmap;
ctxcanvas->graphics = new Graphics(bitmap);
- ctxcanvas->canvas->w = canvas_dbuffer->w;
- ctxcanvas->canvas->h = canvas_dbuffer->h;
+ ctxcanvas->canvas->w = w;
+ ctxcanvas->canvas->h = h;
ctxcanvas->dirty = 1;
@@ -100,11 +105,18 @@ O DC é um BITMAP em memoria.
*/
static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
+ int w, h;
cdCanvas* canvas_dbuffer = (cdCanvas*)data;
if (!canvas_dbuffer)
return;
- Bitmap* bitmap = new Bitmap(canvas_dbuffer->w, canvas_dbuffer->h, PixelFormat24bppRGB);
+ cdCanvasActivate(canvas_dbuffer); /* Update size */
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
+
+ Bitmap* bitmap = new Bitmap(w, h, PixelFormat24bppRGB);
bitmap->SetResolution((REAL)(canvas_dbuffer->xres*25.4), (REAL)(canvas_dbuffer->yres*25.4));
Graphics imggraphics(bitmap);
@@ -112,8 +124,8 @@ static void cdcreatecanvas(cdCanvas* canvas, void *data)
Graphics* graphics = new Graphics(bitmap);
- canvas->w = canvas_dbuffer->w;
- canvas->h = canvas_dbuffer->h;
+ canvas->w = w;
+ canvas->h = h;
canvas->bpp = 24;
/* Initialize base driver */
diff --git a/src/sim/cd_truetype.h b/src/sim/cd_truetype.h
index 5675998..f29fb82 100644
--- a/src/sim/cd_truetype.h
+++ b/src/sim/cd_truetype.h
@@ -24,7 +24,7 @@ typedef struct _cdTT_Text
FT_Library library;
FT_Face face;
- unsigned char* rgba_data;
+ unsigned char* rgba_data; /* the image where one character is drawn with the foreground color during text output */
int rgba_data_size;
int max_height;
diff --git a/src/sim/sim_text.c b/src/sim/sim_text.c
index 3ea7aef..7172e16 100644
--- a/src/sim/sim_text.c
+++ b/src/sim/sim_text.c
@@ -198,7 +198,11 @@ static void simDrawTextBitmap(cdSimulation* simulation, FT_Bitmap* bitmap, int x
/* disable image transformation */
simulation->canvas->use_matrix = 0;
+ /* this is the char bitmap, contains an alpha map of the char
+ to be combined with the foreground color */
bitmap_data = bitmap->buffer + (height-1)*width; /* bitmap is top down. */
+
+ /* this is the image used to draw the char with the foreground color */
red = simulation->tt_text->rgba_data;
green = red + size;
blue = green + size;
@@ -207,8 +211,12 @@ static void simDrawTextBitmap(cdSimulation* simulation, FT_Bitmap* bitmap, int x
if (!simulation->canvas->cxPutImageRectRGBA && !simulation->canvas->cxGetImageRGB)
{
int i, j;
- unsigned char bg_red, bg_green, bg_blue, fg_red, fg_green, fg_blue;
+ unsigned char bg_red, bg_green, bg_blue,
+ fg_red, fg_green, fg_blue, fg_alpha, calpha;
long int c;
+
+ /* must manually combine using only the background color, ignore canvas contents */
+
c = simulation->canvas->background;
bg_red = cdRed(c);
bg_green = cdGreen(c);
@@ -217,39 +225,74 @@ static void simDrawTextBitmap(cdSimulation* simulation, FT_Bitmap* bitmap, int x
fg_red = cdRed(c);
fg_green = cdGreen(c);
fg_blue = cdBlue(c);
+ fg_alpha = cdAlpha(c);
for (i = 0; i < height; i++)
{
for (j = 0; j < width; j++)
{
- *red++ = (fg_red*bitmap_data[j] + bg_red*(255-bitmap_data[j]))/255;
- *green++ = (fg_green*bitmap_data[j] + bg_green*(255-bitmap_data[j]))/255;
- *blue++ = (fg_blue*bitmap_data[j] + bg_blue*(255-bitmap_data[j]))/255;
+ if (fg_alpha == 255)
+ calpha = bitmap_data[j];
+ else
+ calpha = (fg_alpha*bitmap_data[j])/255;
+
+ *red++ = CD_ALPHA_BLEND(fg_red, bg_red, calpha);
+ *green++ = CD_ALPHA_BLEND(fg_green, bg_green, calpha);
+ *blue++ = CD_ALPHA_BLEND(fg_blue, bg_blue, calpha);
}
bitmap_data -= width;
}
+ /* reset pointers */
red = simulation->tt_text->rgba_data;
green = red + size;
blue = green + size;
+
+ /* draw the char */
simulation->canvas->cxPutImageRectRGB(simulation->canvas->ctxcanvas, width,height,red,green,blue,x,y,width,height,0,width-1,0,height-1);
}
else
{
- int i;
+ int i, j;
long int fg = simulation->canvas->foreground;
+ unsigned char fg_alpha = cdAlpha(fg);
memset(red, cdRed(fg), size);
memset(green, cdGreen(fg), size);
memset(blue, cdBlue(fg), size);
- for (i = 0; i < height; i++)
+
+ if (fg_alpha == 255)
{
- memcpy(alpha, bitmap_data, width);
- alpha += width;
- bitmap_data -= width;
+ /* alpha is the bitmap_data itself
+ if the foreground color does not contains alpha.
+ Also must invert since it is top-down. */
+ for (i = 0; i < height; i++)
+ {
+ memcpy(alpha, bitmap_data, width);
+ alpha += width;
+ bitmap_data -= width;
+ }
+ }
+ else
+ {
+ /* alpha is the bitmap_data itself
+ if the foreground color does not contains alpha.
+ Also must invert since it is top-down. */
+ for (i = 0; i < height; i++)
+ {
+ for (j = 0; j < width; j++)
+ {
+ *alpha++ = (fg_alpha*bitmap_data[j])/255;
+ }
+
+ bitmap_data -= width;
+ }
}
+ /* reset alpha pointer */
alpha = blue + size;
+
+ /* draw the char */
simulation->canvas->cxPutImageRectRGBA(simulation->canvas->ctxcanvas, width,height,red,green,blue,alpha,x,y,width,height,0,width-1,0,height-1);
}
diff --git a/src/win32/cdwdbuf.c b/src/win32/cdwdbuf.c
index 035e29e..85af87c 100644
--- a/src/win32/cdwdbuf.c
+++ b/src/win32/cdwdbuf.c
@@ -44,12 +44,19 @@ static void cdflush(cdCtxCanvas *ctxcanvas)
static void cdcreatecanvas(cdCanvas* canvas, cdCanvas* canvas_dbuffer)
{
+ int w, h;
cdCtxCanvas* ctxcanvas;
cdImage* image_dbuffer;
cdCtxImage* ctximage;
+ cdCanvasActivate(canvas_dbuffer);
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
+
/* this is done in the canvas_dbuffer context */
- image_dbuffer = cdCanvasCreateImage(canvas_dbuffer, canvas_dbuffer->w, canvas_dbuffer->h);
+ image_dbuffer = cdCanvasCreateImage(canvas_dbuffer, w, h);
if (!image_dbuffer)
return;
@@ -74,15 +81,20 @@ static void cdcreatecanvas(cdCanvas* canvas, cdCanvas* canvas_dbuffer)
static int cdactivate(cdCtxCanvas *ctxcanvas)
{
+ int w, h;
cdCanvas* canvas_dbuffer = ctxcanvas->canvas_dbuffer;
/* this is done in the canvas_dbuffer context */
/* this will update canvas size */
cdCanvasActivate(canvas_dbuffer);
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
/* check if the size changed */
- if (canvas_dbuffer->w != ctxcanvas->image_dbuffer->w ||
- canvas_dbuffer->h != ctxcanvas->image_dbuffer->h)
+ if (w != ctxcanvas->image_dbuffer->w ||
+ h != ctxcanvas->image_dbuffer->h)
{
cdCanvas* canvas = ctxcanvas->canvas;
/* save the current, if the rebuild fail */
diff --git a/src/x11/cdxdbuf.c b/src/x11/cdxdbuf.c
index 1c92da5..835687c 100644
--- a/src/x11/cdxdbuf.c
+++ b/src/x11/cdxdbuf.c
@@ -41,12 +41,19 @@ static void cdflush(cdCtxCanvas* ctxcanvas)
static void cdcreatecanvas(cdCanvas* canvas, cdCanvas* canvas_dbuffer)
{
+ int w, h;
cdCtxCanvas* ctxcanvas;
cdImage* image_dbuffer;
cdCtxImage* ctximage;
+ cdCanvasActivate(canvas_dbuffer);
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
+
/* this is done in the canvas_dbuffer context */
- image_dbuffer = cdCanvasCreateImage(canvas_dbuffer, canvas_dbuffer->w, canvas_dbuffer->h);
+ image_dbuffer = cdCanvasCreateImage(canvas_dbuffer, w, h);
if (!image_dbuffer)
return;
@@ -63,15 +70,20 @@ static void cdcreatecanvas(cdCanvas* canvas, cdCanvas* canvas_dbuffer)
static int cdactivate(cdCtxCanvas* ctxcanvas)
{
+ int w, h;
cdCanvas* canvas_dbuffer = ctxcanvas->canvas_dbuffer;
/* this is done in the canvas_dbuffer context */
/* this will update canvas size */
cdCanvasActivate(canvas_dbuffer);
+ w = canvas_dbuffer->w;
+ h = canvas_dbuffer->h;
+ if (w==0) w=1;
+ if (h==0) h=1;
/* check if the size changed */
- if (canvas_dbuffer->w != ctxcanvas->image_dbuffer->w ||
- canvas_dbuffer->h != ctxcanvas->image_dbuffer->h)
+ if (w != ctxcanvas->image_dbuffer->w ||
+ h != ctxcanvas->image_dbuffer->h)
{
cdCanvas* canvas = ctxcanvas->canvas;
/* save the current, if the rebuild fail */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 19:53:09 +0000