pandory500/SDL-mirror
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Added source color and alpha modulation support.

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Added perl script to generate optimized render copy functions.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402032
This commit is contained in:
Sam Lantinga 2006-08-28 03:17:39 +00:00
parent aebbf8cb6e
commit fdafca64b3
25 changed files with 6938 additions and 288 deletions
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51
test/testsprite2.c
View file

@ -8,11 +8,15 @@
#define NUM_SPRITES 100
#define MAX_SPEED 1
#define BACKGROUND 0x00A0A0A0
static CommonState *state;
static int num_sprites;
static SDL_TextureID *sprites;
static SDL_bool cycle_color;
static SDL_bool cycle_alpha;
static int cycle_direction = 1;
static int current_alpha = 0;
static int current_color = 0;
static SDL_Rect *positions;
static SDL_Rect *velocities;
static int sprite_w, sprite_h;
@ -66,6 +70,8 @@ LoadSprite(char *file)
SDL_FreeSurface(temp);
return (-1);
}
SDL_SetTextureBlendMode(sprites[i], blendMode);
SDL_SetTextureScaleMode(sprites[i], scaleMode);
}
SDL_FreeSurface(temp);
@ -85,9 +91,36 @@ MoveSprites(SDL_WindowID window, SDL_TextureID sprite)
/* Query the sizes */
SDL_GetWindowSize(window, &window_w, &window_h);
/* Cycle the color and alpha, if desired */
if (cycle_color) {
current_color += cycle_direction;
if (current_color < 0) {
current_color = 0;
cycle_direction = -cycle_direction;
}
if (current_color > 255) {
current_color = 255;
cycle_direction = -cycle_direction;
}
SDL_SetTextureColorMod(sprite, 255, (Uint8) current_color,
(Uint8) current_color);
}
if (cycle_alpha) {
current_alpha += cycle_direction;
if (current_alpha < 0) {
current_alpha = 0;
cycle_direction = -cycle_direction;
}
if (current_alpha > 255) {
current_alpha = 255;
cycle_direction = -cycle_direction;
}
SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha);
}
/* Move the sprite, bounce at the wall, and draw */
n = 0;
SDL_RenderFill(NULL, BACKGROUND);
SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
for (i = 0; i < num_sprites; ++i) {
position = &positions[i];
velocity = &velocities[i];
@ -103,7 +136,7 @@ MoveSprites(SDL_WindowID window, SDL_TextureID sprite)
}
/* Blit the sprite onto the screen */
SDL_RenderCopy(sprite, NULL, position, blendMode, scaleMode);
SDL_RenderCopy(sprite, NULL, position);
}
/* Update the screen! */
@ -166,6 +199,12 @@ main(int argc, char *argv[])
consumed = 2;
}
}
} else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
cycle_color = SDL_TRUE;
consumed = 1;
} else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
cycle_alpha = SDL_TRUE;
consumed = 1;
} else if (SDL_isdigit(*argv[i])) {
num_sprites = SDL_atoi(argv[i]);
consumed = 1;
@ -173,7 +212,7 @@ main(int argc, char *argv[])
}
if (consumed < 0) {
fprintf(stderr,
"Usage: %s %s [--blend none|mask|blend|add|mod] [--scale none|fast|slow|best]",
"Usage: %s %s [--blend none|mask|blend|add|mod] [--scale none|fast|slow|best] [--cyclecolor] [--cyclealpha]\n",
argv[0], CommonUsage(state));
quit(1);
}
@ -192,7 +231,7 @@ main(int argc, char *argv[])
}
for (i = 0; i < state->num_windows; ++i) {
SDL_SelectRenderer(state->windows[i]);
SDL_RenderFill(NULL, BACKGROUND);
SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
}
if (LoadSprite("icon.bmp") < 0) {
quit(2);
@ -237,7 +276,7 @@ main(int argc, char *argv[])
switch (event.window.event) {
case SDL_WINDOWEVENT_EXPOSED:
SDL_SelectRenderer(event.window.windowID);
SDL_RenderFill(NULL, BACKGROUND);
SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
break;
}
break;