forked from KolibriOS/kolibrios
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
#include "graphics.h"
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#include "sprites.h"
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#include <assert.h>
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Image* screenImage;
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static Image* spriteAtlas;
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void graphicsInit() {
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spriteAtlas = img_decode((void*)sprites100, sizeof(sprites100), 0);
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*((uint8_t*)spriteAtlas->Palette + 3) = 0; // set black as transparent
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// for (int i = 0; i < 16; i++) {
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// dbg_printf("%x\n", *((uint8_t*)spriteAtlas->Palette + i));
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// }
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if (spriteAtlas->Type != IMAGE_BPP32) {
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spriteAtlas = img_convert(spriteAtlas, NULL, IMAGE_BPP32, 0, 0);
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if (!spriteAtlas) {
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dbg_printf("spriteAtlas convert error\n");
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exit(-1);
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}
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}
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dbg_printf("spriteAtlas->Type = %d\n", spriteAtlas->Type);
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screenImage = img_create(DEFAULT_WIDTH, DEFAULT_HEIGHT, IMAGE_BPP32);
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// asm_inline("emms"); // doenst need bec. libimg functions used here does not use mmx (=> does not currept fpu state)
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}
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void graphicsBlitAtlasImage(int atlasX, int atlasY, int destX, int destY, int w, int h, bool center) {
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// dbg_printf("start graphicsBlitAtlasImage ax = %d ay = %d dx = %d dy = %d w = %d h = %d %x %x\n", atlasX, atlasY, destX, destY, w, h, screenImage, spriteAtlas);
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int screen_width = (int)screenImage->Width;
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int screen_height = (int)screenImage->Height;
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if (destX >= screen_width) {
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return;
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}
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if (destY >= screen_height) {
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return;
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}
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if (destX < 0) {
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atlasX -= destX;
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w = destX + w;
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destX = 0;
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}
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if (destX + w > screen_width) {
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w = screen_width - destX;
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}
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if (destY < 0) {
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atlasY -= destY;
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h = destY + h;
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destY = 0;
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}
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if (destY + h > screen_height) {
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h = screen_height - destY;
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}
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if (w <= 0 || h <= 0) {
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return;
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}
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//printf("start graphicsBlitAtlasImage ax = %d ay = %d dx = %d dy = %d w = %d h = %d %x %x\n\n", atlasX, atlasY, destX, destY, w, h, screenImage, spriteAtlas);
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img_blend(screenImage, spriteAtlas, destX, destY, atlasX, atlasY, w, h);
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asm_inline("emms");
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// dbg_printf("end graphicsBlitAtlasImage\n\n");
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}
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void graphicsFillBackground(unsigned r, unsigned g, unsigned b) {
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img_fill_color(screenImage, screenImage->Width, screenImage->Height, (0xFF << 24) | (r << 16) | (g << 8) | b);
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}
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void graphicsRender() {
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// don't redraw window on each frame. redraw window only when redraw event (called when widow moved e.g.)
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img_draw(screenImage, 5, 24, screenImage->Width, screenImage->Height, 0, 0);
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}
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void graphicsDelay(int ms) {
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// dbg_printf("ms = %d\n", ms);
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_ksys_delay(ms/10 ? ms/10 : 2);
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}
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void graphicsDestroy() {
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img_destroy(screenImage);
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img_destroy(spriteAtlas);
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}
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