Added RenderPiont() API
Merged the drawing tests into a single test program --HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403363
This commit is contained in:
Sam Lantinga
parent
4f84ec9b5e
commit
f055f6a189
16 changed files with 671 additions and 264 deletions
284
test/testdraw2.c
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284
test/testdraw2.c
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/* Simple program: draw as many random objects on the screen as possible */
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include "common.h"
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#define NUM_OBJECTS 100
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static CommonState *state;
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static int num_objects;
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static SDL_bool cycle_color;
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static SDL_bool cycle_alpha;
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static int cycle_direction = 1;
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static int current_alpha = 255;
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static int current_color = 255;
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static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
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void
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DrawPoints(SDL_WindowID window)
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{
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int i;
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int x, y;
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int window_w, window_h;
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/* Query the sizes */
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SDL_GetWindowSize(window, &window_w, &window_h);
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SDL_SetRenderDrawBlendMode(blendMode);
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for (i = 0; i < num_objects; ++i) {
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/* Cycle the color and alpha, if desired */
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if (cycle_color) {
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current_color += cycle_direction;
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if (current_color < 0) {
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current_color = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_color > 255) {
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current_color = 255;
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cycle_direction = -cycle_direction;
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}
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}
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if (cycle_alpha) {
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current_alpha += cycle_direction;
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if (current_alpha < 0) {
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current_alpha = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_alpha > 255) {
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current_alpha = 255;
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cycle_direction = -cycle_direction;
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}
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}
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SDL_SetRenderDrawColor(255, (Uint8) current_color,
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(Uint8) current_color, (Uint8) current_alpha);
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x = rand() % window_w;
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y = rand() % window_h;
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SDL_RenderPoint(x, y);
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}
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SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
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}
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void
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DrawLines(SDL_WindowID window)
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{
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int i;
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int x1, y1, x2, y2;
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int window_w, window_h;
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/* Query the sizes */
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SDL_GetWindowSize(window, &window_w, &window_h);
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SDL_SetRenderDrawBlendMode(blendMode);
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for (i = 0; i < num_objects; ++i) {
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/* Cycle the color and alpha, if desired */
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if (cycle_color) {
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current_color += cycle_direction;
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if (current_color < 0) {
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current_color = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_color > 255) {
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current_color = 255;
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cycle_direction = -cycle_direction;
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}
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}
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if (cycle_alpha) {
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current_alpha += cycle_direction;
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if (current_alpha < 0) {
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current_alpha = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_alpha > 255) {
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current_alpha = 255;
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cycle_direction = -cycle_direction;
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}
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}
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SDL_SetRenderDrawColor(255, (Uint8) current_color,
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(Uint8) current_color, (Uint8) current_alpha);
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if (i == 0) {
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SDL_RenderLine(0, 0, window_w, window_h);
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SDL_RenderLine(0, window_h, window_w, 0);
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SDL_RenderLine(0, window_h / 2, window_w, window_h / 2);
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SDL_RenderLine(window_w / 2, 0, window_w / 2, window_h);
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} else {
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x1 = rand() % window_w;
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x2 = rand() % window_w;
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y1 = rand() % window_h;
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y2 = rand() % window_h;
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SDL_RenderLine(x1, y1, x2, y2);
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}
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}
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SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
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}
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void
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DrawRects(SDL_WindowID window)
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{
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int i;
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SDL_Rect rect;
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int window_w, window_h;
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/* Query the sizes */
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SDL_GetWindowSize(window, &window_w, &window_h);
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SDL_SetRenderDrawBlendMode(blendMode);
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for (i = 0; i < num_objects/4; ++i) {
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/* Cycle the color and alpha, if desired */
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if (cycle_color) {
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current_color += cycle_direction;
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if (current_color < 0) {
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current_color = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_color > 255) {
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current_color = 255;
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cycle_direction = -cycle_direction;
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}
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}
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if (cycle_alpha) {
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current_alpha += cycle_direction;
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if (current_alpha < 0) {
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current_alpha = 0;
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cycle_direction = -cycle_direction;
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}
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if (current_alpha > 255) {
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current_alpha = 255;
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cycle_direction = -cycle_direction;
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}
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}
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SDL_SetRenderDrawColor(255, (Uint8) current_color,
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(Uint8) current_color, (Uint8) current_alpha);
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rect.w = rand() % (window_h / 2);
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rect.h = rand() % (window_h / 2);
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rect.x = (rand() % window_w) - (rect.w / 2);
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rect.y = (rand() % window_w) - (rect.h / 2);
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SDL_RenderFill(&rect);
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}
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SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
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}
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int
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main(int argc, char *argv[])
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{
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int i, done;
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SDL_Event event;
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Uint32 then, now, frames;
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/* Initialize parameters */
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num_objects = NUM_OBJECTS;
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/* Initialize test framework */
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state = CommonCreateState(argv, SDL_INIT_VIDEO);
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if (!state) {
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return 1;
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}
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for (i = 1; i < argc;) {
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int consumed;
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consumed = CommonArg(state, i);
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if (consumed == 0) {
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consumed = -1;
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if (SDL_strcasecmp(argv[i], "--blend") == 0) {
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if (argv[i + 1]) {
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if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
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blendMode = SDL_BLENDMODE_NONE;
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consumed = 2;
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} else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) {
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blendMode = SDL_BLENDMODE_MASK;
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consumed = 2;
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} else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
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blendMode = SDL_BLENDMODE_BLEND;
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consumed = 2;
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} else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
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blendMode = SDL_BLENDMODE_ADD;
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consumed = 2;
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} else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
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blendMode = SDL_BLENDMODE_MOD;
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consumed = 2;
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}
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}
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} else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
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cycle_color = SDL_TRUE;
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consumed = 1;
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} else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
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cycle_alpha = SDL_TRUE;
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consumed = 1;
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} else if (SDL_isdigit(*argv[i])) {
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num_objects = SDL_atoi(argv[i]);
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consumed = 1;
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}
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}
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if (consumed < 0) {
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fprintf(stderr,
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"Usage: %s %s [--blend none|mask|blend|add|mod] [--cyclecolor] [--cyclealpha]\n",
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argv[0], CommonUsage(state));
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return 1;
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}
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i += consumed;
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}
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if (!CommonInit(state)) {
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return 2;
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}
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/* Create the windows and initialize the renderers */
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for (i = 0; i < state->num_windows; ++i) {
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SDL_SelectRenderer(state->windows[i]);
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SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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SDL_RenderFill(NULL);
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}
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srand(time(NULL));
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/* Main render loop */
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frames = 0;
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then = SDL_GetTicks();
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done = 0;
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while (!done) {
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/* Check for events */
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++frames;
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while (SDL_PollEvent(&event)) {
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CommonEvent(state, &event, &done);
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switch (event.type) {
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case SDL_WINDOWEVENT:
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switch (event.window.event) {
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case SDL_WINDOWEVENT_EXPOSED:
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SDL_SelectRenderer(event.window.windowID);
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SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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SDL_RenderFill(NULL);
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break;
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}
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break;
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default:
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break;
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}
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}
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for (i = 0; i < state->num_windows; ++i) {
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SDL_SelectRenderer(state->windows[i]);
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SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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SDL_RenderFill(NULL);
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DrawRects(state->windows[i]);
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DrawLines(state->windows[i]);
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DrawPoints(state->windows[i]);
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SDL_RenderPresent();
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}
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}
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/* Print out some timing information */
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now = SDL_GetTicks();
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if (now > then) {
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double fps = ((double) frames * 1000) / (now - then);
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printf("%2.2f frames per second\n", fps);
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}
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return 0;
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}
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/* vi: set ts=4 sw=4 expandtab: */
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