c88d6dcb4f
Adds useful descriptions to ones that were lacking them, updates ones that were innacurate, etc.
118 lines
2.2 KiB
C
118 lines
2.2 KiB
C
/*
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* test-gfx
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*
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* Windowed graphical test application.
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*/
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#include <stdlib.h>
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#include <assert.h>
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#include <math.h>
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#include "lib/window.h"
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#include "lib/graphics.h"
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#include "lib/decorations.h"
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sprite_t * sprites[128];
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sprite_t alpha_tmp;
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uint16_t win_width;
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uint16_t win_height;
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gfx_context_t * ctx;
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int center_x(int x) {
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return (win_width - x) / 2;
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}
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int center_y(int y) {
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return (win_height - y) / 2;
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}
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void init_sprite(int i, char * filename, char * alpha) {
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sprites[i] = malloc(sizeof(sprite_t));
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load_sprite(sprites[i], filename);
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if (alpha) {
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sprites[i]->alpha = 1;
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load_sprite(&alpha_tmp, alpha);
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sprites[i]->masks = alpha_tmp.bitmap;
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} else {
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sprites[i]->alpha = 0;
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}
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sprites[i]->blank = 0x0;
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}
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void darken(gfx_context_t * ctx) {
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for (uint16_t y = 0; y < ctx->height; ++y) {
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for (uint16_t x = 0; x < ctx->width; ++x) {
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GFX(ctx, x, y) = alpha_blend(GFX(ctx,x,y), rgb(0,0,0), rgb(1,0,0));
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}
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}
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}
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int main (int argc, char ** argv) {
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setup_windowing();
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int width = 600;
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int height = 400;
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win_width = width;
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win_height = height;
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init_decorations();
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/* Do something with a window */
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window_t * wina = window_create(300, 300, width, height);
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assert(wina);
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ctx = init_graphics_window_double_buffer(wina);
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draw_fill(ctx, rgb(0,0,0));
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flip(ctx);
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#if 0
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printf("Loading background...\n");
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init_sprite(0, "/usr/share/login-background.bmp", NULL);
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printf("Background loaded.\n");
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draw_sprite_scaled(ctx, sprites[0], 0, 0, width, height);
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#endif
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#if 1
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init_sprite(1, "/usr/share/bs.bmp", "/usr/share/bs-alpha.bmp");
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#endif
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flip(ctx);
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uint32_t i = 0;
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while (1) {
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++i;
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double herp = cos((double)i * 0.01) + 1.5;
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double derp = sin((double)i * 0.01) + 1.5;
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char ch = 0;
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w_keyboard_t * kbd;
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do {
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kbd = poll_keyboard();
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if (kbd != NULL) {
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ch = kbd->key;
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free(kbd);
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}
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} while (kbd != NULL);
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if (ch == 'q') {
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goto done;
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break;
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}
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//draw_fill(ctx, rgb(0,0,0));
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darken(ctx);
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draw_sprite_scaled(ctx, sprites[1], center_x(sprites[1]->width * herp), center_y(sprites[1]->height * derp), sprites[1]->width * herp, sprites[1]->height * derp);
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render_decorations(wina, ctx->backbuffer, "Graphics Test");
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flip(ctx);
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}
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done:
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#if 1
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teardown_windowing();
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#endif
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return 0;
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}
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