nishi/milsko
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pixmap works

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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@70 b9cfdab3-6d41-4d17-bbe4-086880011989
This commit is contained in:
NishiOwO
2025-09-30 01:14:30 +00:00
parent e230b5441c
commit 58cbbdb8a4
3 changed files with 50 additions and 31 deletions
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2
examples/example.c
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@@ -64,8 +64,6 @@ int main() {
MwNbackground, "#66f",
NULL);
MwVaCreateWidget(MwFrameClass, "frame", window, 50, 50, 300, 300, NULL);
MwAddUserHandler(window, MwNresizeHandler, resize, NULL);
MwAddUserHandler(button, MwNactivateHandler, handler, NULL);
MwAddUserHandler(button2, MwNactivateHandler, handler, NULL);

20
src/frame.c
View File

@@ -1,25 +1,8 @@
/* $Id$ */
#include <Mw/Milsko.h>
MwLLPixmap pixmap;
static void create(MwWidget handle) {
MwSetDefault(handle);
int y, x;
unsigned char* dat = malloc(640 * 480 * 3);
for(y = 0; y < 480; y++) {
for(x = 0; x < 640; x++) {
unsigned char* px = &dat[(y * 640 + x) * 3];
double c = (double)x / 640 * 255 / 2 + (double)y / 480 * 255 / 2;
px[0] = c;
px[1] = 0;
px[2] = 0;
}
}
pixmap = MwLLCreatePixmap(handle->lowlevel, dat, 640, 480);
free(dat);
}
static void draw(MwWidget handle) {
@@ -33,8 +16,7 @@ static void draw(MwWidget handle) {
MwDrawFrameEx(handle, &r, base, 1, 1);
MwDrawFrameEx(handle, &r, base, 0, 1);
MwLLDrawPixmap(handle->lowlevel, &r, pixmap);
// MwDrawRect(handle, &r, base);
MwDrawRect(handle, &r, base);
MwLLFreeColor(base);
}

59
src/x11.c
View File

@@ -144,12 +144,19 @@ MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int hei
MwLLPixmap r = malloc(sizeof(*r));
char* d = malloc(4 * width * height);
int y, x;
int evbase, erbase;
r->width = width;
r->height = height;
r->display = handle->display;
r->use_shm = XShmQueryExtension(handle->display) ? 1 : 0;
if(!XRenderQueryExtension(handle->display, &evbase, &erbase)) {
fprintf(stderr, "XRender missing - cannot proceed pixmap creation\n");
r->image = NULL;
return r;
}
if(r->use_shm) {
r->image = XShmCreateImage(handle->display, DefaultVisual(handle->display, DefaultScreen(handle->display)), 24, ZPixmap, NULL, &r->shm, width, height);
free(d);
@@ -163,7 +170,7 @@ MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int hei
}
for(y = 0; y < height; y++) {
for(x = 0; x < height; x++) {
for(x = 0; x < width; x++) {
unsigned char* px = &data[(y * width + x) * 3];
unsigned long p = 0;
p <<= 8;
@@ -180,13 +187,15 @@ MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int hei
}
void MwLLDestroyPixmap(MwLLPixmap pixmap) {
if(pixmap->use_shm) {
XShmDetach(pixmap->display, &pixmap->shm);
}
XDestroyImage(pixmap->image);
if(pixmap->use_shm) {
shmdt(pixmap->shm.shmaddr);
shmctl(pixmap->shm.shmid, IPC_RMID, 0);
if(pixmap->image != NULL) {
if(pixmap->use_shm) {
XShmDetach(pixmap->display, &pixmap->shm);
}
XDestroyImage(pixmap->image);
if(pixmap->use_shm) {
shmdt(pixmap->shm.shmaddr);
shmctl(pixmap->shm.shmid, IPC_RMID, 0);
}
}
free(pixmap);
@@ -194,10 +203,40 @@ void MwLLDestroyPixmap(MwLLPixmap pixmap) {
void MwLLDrawPixmap(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
if(pixmap->image != NULL) {
Pixmap px = XCreatePixmap(handle->display, handle->window, pixmap->width, pixmap->height, 24);
XRenderPictFormat* format = XRenderFindStandardFormat(handle->display, PictStandardRGB24);
XRenderPictureAttributes attr;
Picture src, dest;
XTransform m;
double xsc = (double)pixmap->width / rect->width;
double ysc = (double)pixmap->height / rect->height;
m.matrix[0][0] = XDoubleToFixed(xsc);
m.matrix[0][1] = XDoubleToFixed(0);
m.matrix[0][2] = XDoubleToFixed(0);
m.matrix[1][0] = XDoubleToFixed(0);
m.matrix[1][1] = XDoubleToFixed(ysc);
m.matrix[1][2] = XDoubleToFixed(0);
m.matrix[2][0] = XDoubleToFixed(0);
m.matrix[2][1] = XDoubleToFixed(0);
m.matrix[2][2] = XDoubleToFixed(1.0);
memset(&attr, 0, sizeof(attr));
if(pixmap->use_shm) {
XShmPutImage(handle->display, handle->window, handle->gc, pixmap->image, 0, 0, rect->x, rect->y, rect->width, rect->height, False);
XShmPutImage(handle->display, px, handle->gc, pixmap->image, 0, 0, 0, 0, pixmap->width, pixmap->height, False);
} else {
XPutImage(handle->display, handle->window, handle->gc, pixmap->image, 0, 0, rect->x, rect->y, rect->width, rect->height);
XPutImage(handle->display, px, handle->gc, pixmap->image, 0, 0, 0, 0, pixmap->width, pixmap->height);
}
src = XRenderCreatePicture(handle->display, px, format, 0, &attr);
dest = XRenderCreatePicture(handle->display, handle->window, format, 0, &attr);
XRenderSetPictureTransform(handle->display, src, &m);
XRenderComposite(handle->display, PictOpSrc, src, 0, dest, 0, 0, 0, 0, rect->x, rect->y, rect->width, rect->height);
XFreePixmap(handle->display, px);
}
}