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[NEW] GRRLIB_BMFX_FlipH and GRRLIB_BMFX_FlipV for flipping a texture

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This commit is contained in:
Crayon2000 2009-02-16 04:38:16 +00:00
parent 14e4f60643
commit 5f57f2e346
4 changed files with 70 additions and 6 deletions
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34
GRRLIB/GRRLIB/GRRLIB.c
View file

@ -551,6 +551,40 @@ void GRRLIB_BMFX_Invert(GRRLIB_texImg texsrc, GRRLIB_texImg texdest) {
}
}
/**
* Flip texture horizontal.
* @see GRRLIB_FlushTex
* @param texsrc the texture source.
* @param texdest the texture destination.
*/
void GRRLIB_BMFX_FlipH(GRRLIB_texImg texsrc, GRRLIB_texImg texdest) {
unsigned int x, y, txtWidth = texsrc.w - 1;
for(y=0; y<texsrc.h; y++) {
for(x=0; x<texsrc.w; x++) {
GRRLIB_SetPixelTotexImg(txtWidth - x, y, texdest,
GRRLIB_GetPixelFromtexImg(x, y, texsrc));
}
}
}
/**
* Flip texture vertical.
* @see GRRLIB_FlushTex
* @param texsrc the texture source.
* @param texdest the texture destination.
*/
void GRRLIB_BMFX_FlipV(GRRLIB_texImg texsrc, GRRLIB_texImg texdest) {
unsigned int x, y, texHeight = texsrc.h - 1;
for(y=0; y<texsrc.h; y++) {
for(x=0; x<texsrc.w; x++) {
GRRLIB_SetPixelTotexImg(x, texHeight - y, texdest,
GRRLIB_GetPixelFromtexImg(x, y, texsrc));
}
}
}
/**
* Blur a texture.
* @see GRRLIB_FlushTex

2
GRRLIB/GRRLIB/GRRLIB.h
View file

@ -69,6 +69,8 @@ void GRRLIB_FlushTex(GRRLIB_texImg tex);
void GRRLIB_BMFX_Grayscale(GRRLIB_texImg texsrc, GRRLIB_texImg texdest);
void GRRLIB_BMFX_Invert(GRRLIB_texImg texsrc, GRRLIB_texImg texdest);
void GRRLIB_BMFX_FlipH(GRRLIB_texImg texsrc, GRRLIB_texImg texdest);
void GRRLIB_BMFX_FlipV(GRRLIB_texImg texsrc, GRRLIB_texImg texdest);
void GRRLIB_BMFX_Blur(GRRLIB_texImg texsrc, GRRLIB_texImg texdest, int factor);
void GRRLIB_BMFX_Scatter(GRRLIB_texImg texsrc, GRRLIB_texImg texdest, int factor);
void GRRLIB_BMFX_Pixelate(GRRLIB_texImg texsrc, GRRLIB_texImg texdest, int factor);

30
examples/lesson2/source/main.c
View file

@ -48,6 +48,9 @@ int main() {
GRRLIB_texImg tex_scatter4 = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
GRRLIB_texImg tex_scatter5 = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
GRRLIB_texImg tex_scatter6 = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
GRRLIB_texImg tex_fliph = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
GRRLIB_texImg tex_flipv = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
GRRLIB_texImg tex_fliphv = GRRLIB_CreateEmptyTexture(tex_pirate.w, tex_pirate.h);
// Let's precalculte the grayscale texture
GRRLIB_BMFX_Grayscale(tex_pirate, tex_gray);
@ -99,6 +102,14 @@ int main() {
GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter6, 12);
GRRLIB_FlushTex(tex_pixel6);
// Let's precalculte for flipping the texture
GRRLIB_BMFX_FlipH(tex_pirate, tex_fliph);
GRRLIB_FlushTex(tex_fliph);
GRRLIB_BMFX_FlipV(tex_pirate, tex_flipv);
GRRLIB_FlushTex(tex_flipv);
GRRLIB_BMFX_FlipV(tex_fliph, tex_fliphv);
GRRLIB_FlushTex(tex_fliphv);
GRRLIB_Init();
WPAD_Init();
@ -123,6 +134,14 @@ int main() {
GRRLIB_DrawImg(10+tex_pirate.w*1, 60, tex_invert, 0, 1, 1, 0xFFFFFFFF);
break;
case 3:
GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "FLIPH AND FLIPV FX");
GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_DrawImg(10+tex_pirate.w*1, 60, tex_fliph, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_DrawImg(10+tex_pirate.w*2, 60, tex_flipv, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_DrawImg(10+tex_pirate.w*3, 60, tex_fliphv, 0, 1, 1, 0xFFFFFFFF);
break;
case 4:
GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "BLUR FX");
GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
@ -133,7 +152,7 @@ int main() {
GRRLIB_DrawImg(10+tex_pirate.w*1, 60+tex_pirate.h*1, tex_blur5, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_DrawImg(10+tex_pirate.w*2, 60+tex_pirate.h*1, tex_blur6, 0, 1, 1, 0xFFFFFFFF);
break;
case 4:
case 5:
GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "PIXELATE FX");
GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
@ -144,7 +163,7 @@ int main() {
GRRLIB_DrawImg(10+tex_pirate.w*1, 60+tex_pirate.h*1, tex_pixel5, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_DrawImg(10+tex_pirate.w*2, 60+tex_pirate.h*1, tex_pixel6, 0, 1, 1, 0xFFFFFFFF);
break;
case 5:
case 6:
GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "SCATTER FX");
GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
@ -170,17 +189,20 @@ int main() {
}
if(wpaddown & WPAD_BUTTON_MINUS) {
page--;
if(page < 0) page = 5;
if(page < 0) page = 6;
}
if(wpaddown & WPAD_BUTTON_PLUS) {
page++;
if(page > 5) page = 0;
if(page > 6) page = 0;
}
}
GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
free(tex_pirate.data);
free(tex_gray.data);
free(tex_invert.data);
free(tex_fliph.data);
free(tex_flipv.data);
free(tex_fliphv.data);
free(tex_blur1.data);
free(tex_blur2.data);
free(tex_blur3.data);

10
readme.txt
View file

@ -56,7 +56,14 @@ ChangeLog :
* GRRLIB_CreateEmptyTexture and GRRLIB_FlushTex
* New Bitmap FX: GRRLIB_BMFX_Grayscale, GRRLIB_BMFX_Invert, GRRLIB_BMFX_Scatter, GRRLIB_BMFX_Blur, GRRLIB_BMFX_Pixelate
* New Bitmap FX:
- GRRLIB_BMFX_Grayscale
- GRRLIB_BMFX_Invert
- GRRLIB_BMFX_FlipH
- GRRLIB_BMFX_FlipV
- GRRLIB_BMFX_Scatter
- GRRLIB_BMFX_Blur
- GRRLIB_BMFX_Pixelate
* add GRRLIB_Exit to free the memory allocated by GRRLIB
@ -69,4 +76,3 @@ Contact me to provide me all your patch/addon/new functions...
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