From 2e9bd8c28d1c41ac95ef6cd23bff6042ef760e1f Mon Sep 17 00:00:00 2001 From: arpi Date: Wed, 23 Oct 2002 00:28:27 +0000 Subject: [PATCH] sample client for -vop bmovl -- loads and alphablend any PNG file git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7857 b3059339-0415-0410-9bf9-f77b7e298cf2 --- TOOLS/bmovl-test/Makefile | 2 + TOOLS/bmovl-test/bmovl-test.c | 116 ++++++++++++++++++++++++++++++++++ 2 files changed, 118 insertions(+) create mode 100644 TOOLS/bmovl-test/Makefile create mode 100644 TOOLS/bmovl-test/bmovl-test.c diff --git a/TOOLS/bmovl-test/Makefile b/TOOLS/bmovl-test/Makefile new file mode 100644 index 0000000000..0f0e148486 --- /dev/null +++ b/TOOLS/bmovl-test/Makefile @@ -0,0 +1,2 @@ +bmovl-test: bmovl-test.c + gcc -O3 -I/usr/local/include/SDL -L/usr/local/lib -lSDL_image -o bmovl-test bmovl-test.c diff --git a/TOOLS/bmovl-test/bmovl-test.c b/TOOLS/bmovl-test/bmovl-test.c new file mode 100644 index 0000000000..2583e115de --- /dev/null +++ b/TOOLS/bmovl-test/bmovl-test.c @@ -0,0 +1,116 @@ +/* Small program to test the features of vf_bmovl */ + +#include +#include +#include +#include + +#define DEBUG 0 + +static void +blit(int fifo, unsigned char *bitmap, int width, int height, + int xpos, int ypos, int alpha, int clear) +{ + char str[100]; + int nbytes; + + sprintf(str, "RGBA32 %d %d %d %d %d %d\n", + width, height, xpos, ypos, alpha, clear); + + if(DEBUG) printf("Sending %s", str); + + write(fifo, str, strlen(str)); + nbytes = write(fifo, bitmap, width*height*4); + + if(DEBUG) printf("Sent %d bytes of bitmap data...\n", nbytes); +} + +static void +set_alpha(int fifo, int width, int height, int xpos, int ypos, int alpha) { + char str[100]; + + sprintf(str, "ALPHA %d %d %d %d %d\n", + width, height, xpos, ypos, alpha); + + if(DEBUG) printf("Sending %s", str); + + write(fifo, str, strlen(str)); +} + +static void +paint(unsigned char* bitmap, int size, int red, int green, int blue, int alpha) { + + int i; + + for(i=0; i < size; i+=4) { + bitmap[i+0] = red; + bitmap[i+1] = green; + bitmap[i+2] = blue; + bitmap[i+3] = alpha; + } +} + +int main(int argc, char **argv) { + + int fifo=-1; + int width=0, height=0, xpos=0, ypos=0, alpha=0, clear=0; + unsigned char *bitmap; + SDL_Surface *image; + int i; + + if(argc<3) { + printf("Usage: %s \n", argv[0]); + printf("width and height are w/h of MPlayer's screen!\n"); + exit(10); + } + + width = atoi(argv[3]); + height = atoi(argv[4]); + + fifo = open( argv[1], O_RDWR ); + if(!fifo) { + fprintf(stderr, "Error opening FIFO %s!\n", argv[1]); + exit(10); + } + + image = IMG_Load(argv[2]); + if(!image) { + fprintf(stderr, "Couldn't load image %s!\n", argv[2]); + exit(10); + } + + printf("Loaded image %s: width=%d, height=%d\n", argv[2], image->w, image->h); + + // Display and move image + for(i=0; (i < (width - image->w)) && (i < (height - image->h)); i += 5) + blit(fifo, image->pixels, image->w, image->h, i, i, 0, 1); + + // Create a 75x75 bitmap + bitmap = (unsigned char*)malloc(75*75*4); + + // Paint bitmap red, 50% transparent and blit at position 50,50 + paint(bitmap, (75*75*4), 255, 0, 0, 128); + blit(fifo, bitmap, 75, 75, 50, 50, 0, 0); + + // Paint bitmap green, 50% transparent and blit at position -50,50 + paint(bitmap, (75*75*4), 0, 255, 0, 128); + blit(fifo, bitmap, 75, 75, width-50-75, 50, 0, 0); + + // Paint bitmap green, 50% transparent and blit at position -50,50 + paint(bitmap, (75*75*4), 0, 0, 255, 128); + blit(fifo, bitmap, 75, 75, 50, height-50-75, 0, 0); + + // Blit another image in the middle, completly transparent + blit(fifo, image->pixels, image->w, image->h, + (width/2)-(image->w/2), (height/2)-(image->h/2), -255, 0); + + // Fade in image + for(i=-255; i <= 0; i++) + set_alpha(fifo, image->w, image->h, + (width/2)-(image->w/2), (height/2)-(image->h/2), i); + + + // Clean up + free(bitmap); + SDL_FreeSurface(image); +}