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[project @ 2004-08-15 22:36:13 by rjw] 

Fix for sprite rendering. Merge alpha and opaque plotting functions

svn path=/import/netsurf/; revision=1240
This commit is contained in:
Richard Wilson 2004-08-15 22:36:13 +00:00
parent b1399acea2
commit b5e04ee27a
1 changed files with 27 additions and 74 deletions
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101
riscos/image.c
View File

@ -19,12 +19,10 @@
#include "netsurf/utils/utils.h"
static bool image_redraw_tinct_alpha(osspriteop_area *area, int x, int y,
static bool image_redraw_tinct(osspriteop_area *area, int x, int y,
int req_width, int req_height, int width, int height,
unsigned long background_colour, bool repeatx, bool repeaty);
static bool image_redraw_tinct_opaque(osspriteop_area *area, int x, int y,
int req_width, int req_height, int width, int height,
unsigned long background_colour, bool repeatx, bool repeaty);
unsigned long background_colour, bool repeatx, bool repeaty,
bool alpha);
static bool image_redraw_os(osspriteop_area *area, int x, int y,
int req_width, int req_height, int width, int height);
@ -51,17 +49,17 @@ bool image_redraw(osspriteop_area *area, int x, int y, int req_width,
{
switch (type) {
case IMAGE_PLOT_TINCT_ALPHA:
return image_redraw_tinct_alpha(area, x, y,
return image_redraw_tinct(area, x, y,
req_width, req_height,
width, height,
background_colour,
repeatx, repeaty);
repeatx, repeaty, true);
case IMAGE_PLOT_TINCT_OPAQUE:
return image_redraw_tinct_opaque(area, x, y,
return image_redraw_tinct(area, x, y,
req_width, req_height,
width, height,
background_colour,
repeatx, repeaty);
repeatx, repeaty, false);
case IMAGE_PLOT_OS:
return image_redraw_os(area, x, y, req_width,
req_height, width, height);
@ -73,7 +71,7 @@ bool image_redraw(osspriteop_area *area, int x, int y, int req_width,
}
/**
* Plot an alpha channel image at the given coordinates using tinct
* Plot an image at the given coordinates using tinct
*
* \param area The sprite area containing the sprite
* \param x Left edge of sprite
@ -83,11 +81,15 @@ bool image_redraw(osspriteop_area *area, int x, int y, int req_width,
* \param width The actual width of the sprite
* \param height The actual height of the sprite
* \param background_colour The background colour to blend to
* \param repeatx Repeat the image in the x direction
* \param repeaty Repeat the image in the y direction
* \param alpha Use the alpha channel
* \return true on success, false otherwise
*/
bool image_redraw_tinct_alpha(osspriteop_area *area, int x, int y,
bool image_redraw_tinct(osspriteop_area *area, int x, int y,
int req_width, int req_height, int width, int height,
unsigned long background_colour, bool repeatx, bool repeaty)
unsigned long background_colour, bool repeatx, bool repeaty,
bool alpha)
{
unsigned int tinct_options;
_kernel_oserror *error;
@ -117,68 +119,18 @@ bool image_redraw_tinct_alpha(osspriteop_area *area, int x, int y,
if (repeaty)
tinct_options |= tinct_FILL_VERTICALLY;
error = _swix(Tinct_PlotScaledAlpha, _INR(2,7),
(char*)area + area->first, x, y - req_height,
req_width, req_height, tinct_options);
if (error) {
LOG(("xtinct_plotscaledalpha: 0x%x: %s",
error->errnum, error->errmess));
return false;
}
return true;
}
/**
* Plot an opaque image at the given coordinates using tinct
*
* \param area The sprite area containing the sprite
* \param x Left edge of sprite
* \param y Top edge of sprite
* \param req_width The requested width of the sprite
* \param req_height The requested height of the sprite
* \param width The actual width of the sprite
* \param height The actual height of the sprite
* \param background_colour The background colour to blend to
* \return true on success, false otherwise
*/
bool image_redraw_tinct_opaque(osspriteop_area *area, int x, int y,
int req_width, int req_height, int width, int height,
unsigned long background_colour, bool repeatx, bool repeaty)
{
unsigned int tinct_options;
_kernel_oserror *error;
if (ro_gui_current_redraw_gui) {
tinct_options =
(ro_gui_current_redraw_gui->option.filter_sprites ?
tinct_BILINEAR_FILTER : 0)
|
(ro_gui_current_redraw_gui->option.dither_sprites ?
tinct_DITHER : 0);
if (alpha) {
error = _swix(Tinct_PlotScaledAlpha, _INR(2,7),
(char*)area + area->first, x, y - req_height,
req_width, req_height, tinct_options);
} else {
tinct_options =
(option_filter_sprites ? tinct_BILINEAR_FILTER : 0)
|
(option_dither_sprites ? tinct_DITHER : 0);
}
error = _swix(Tinct_PlotScaled, _INR(2,7),
(char*)area + area->first, x, y - req_height,
req_width, req_height, tinct_options);
}
if (print_active) {
tinct_options |= tinct_USE_OS_SPRITE_OP |
background_colour << tinct_BACKGROUND_SHIFT;
}
if (repeatx)
tinct_options |= tinct_FILL_HORIZONTALLY;
if (repeaty)
tinct_options |= tinct_FILL_VERTICALLY;
error = _swix(Tinct_PlotScaled, _INR(2,7),
(char*)area + area->first, x, y - req_height,
req_width, req_height, tinct_options);
if (error) {
LOG(("xtinct_plotscaled: 0x%x: %s",
LOG(("xtinct_plotscaled%s: 0x%x: %s", (alpha ? "alpha" : ""),
error->errnum, error->errmess));
return false;
}
@ -186,6 +138,7 @@ bool image_redraw_tinct_opaque(osspriteop_area *area, int x, int y,
return true;
}
/**
* Plot an image at the given coordinates using os_spriteop
*
@ -236,13 +189,13 @@ bool image_redraw_os(osspriteop_area *area, int x, int y, int req_width,
f.xmul = req_width;
f.ymul = req_height;
f.xdiv = width * 2;
f.ydiv = height * 2;
f.xdiv = width;
f.ydiv = height;
error = xosspriteop_put_sprite_scaled(osspriteop_PTR,
area, (osspriteop_id)((char*) area + area->first),
x, (int)(y - req_height),
0, &f, table);
8, &f, table);
if (error) {
LOG(("xosspriteop_put_sprite_scaled: 0x%x: %s", error->errnum, error->errmess));
free(table);