/**
* Make a snapshot of the screen in a texture WITHOUT ALPHA LAYER.
* @param posx top left corner of the grabbed part.
* @param posy top left corner of the grabbed part.
* @param tex A pointer to a texture representing the screen or NULL if an error occurs.
* @param clear When this flag is set to true, the screen is cleared after copy.
*/
void GRRLIB_Screen2Texture (int posx, int posy, GRRLIB_texImg *tex, bool clear) {
if(tex->data != NULL) {
GX_SetTexCopySrc(posx, posy, tex->w, tex->h);
GX_SetTexCopyDst(tex->w, tex->h, GX_TF_RGBA8, GX_FALSE);
GX_CopyTex(tex->data, GX_FALSE);
GX_PixModeSync();
GRRLIB_FlushTex(tex);
if(clear) {
GX_CopyDisp(xfb[!fb], GX_TRUE);
}
}
}
void
reduce_cubemap (cubemap_info *cubemap, int subdiv)
{
int x, y, face;
const u32 vtxfmt = GX_VTXFMT0;
Mtx mvtmp;
Mtx44 ortho;
object_loc rect_loc;
scene_info rect_scene;
int half_subdiv = subdiv / 2;
float scale_factor = 1.0 / ((float) half_subdiv - 0.5);
/* Using an even number of subdivisions and spreading evenly from -1...1
ensures we don't try to evaluate the singularity point at the back of the
sphere. */
assert ((subdiv & 1) == 0);
scene_set_pos (&rect_scene, (guVector) { 0, 0, -5 });
scene_set_lookat (&rect_scene, (guVector) { 0, 0, 0 });
scene_set_up (&rect_scene, (guVector) { 0, 1, 0 });
scene_update_camera (&rect_scene);
guOrtho (ortho, -1, 1, -1, 1, 1, 15);
object_loc_initialise (&rect_loc, GX_PNMTX0);
guMtxIdentity (mvtmp);
object_set_matrices (&rect_scene, &rect_loc, rect_scene.camera, mvtmp, NULL,
ortho, GX_ORTHOGRAPHIC);
GX_ClearVtxDesc ();
GX_SetVtxDesc (GX_VA_POS, GX_DIRECT);
GX_SetVtxDesc (GX_VA_TEX0, GX_DIRECT);
GX_SetVtxAttrFmt (vtxfmt, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
GX_SetVtxAttrFmt (vtxfmt, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
GX_SetCullMode (GX_CULL_BACK);
rendertarget_texture (cubemap->sphsize, cubemap->sphsize, cubemap->sphfmt,
GX_FALSE, GX_PF_RGB8_Z24, GX_ZC_LINEAR);
for (face = 0; face < 6; face++)
{
shader_load (cubemap->face_shader[face]);
for (x = -half_subdiv; x < half_subdiv - 1; x++)
{
float a = ((float) x + 0.5) * scale_factor;
float a1 = ((float) x + 1.5) * scale_factor;
GX_Begin (GX_TRIANGLESTRIP, vtxfmt, subdiv * 2);
for (y = -half_subdiv; y < half_subdiv; y++)
{
float b = ((float) y + 0.5) * scale_factor;
guVector tmp;
face_to_sphere (&tmp, face, a, b);
GX_Position3f32 (tmp.x, tmp.y, tmp.z);
GX_TexCoord2f32 ((a + 1.0) / 2.0, (b + 1.0) / 2.0);
face_to_sphere (&tmp, face, a1, b);
GX_Position3f32 (tmp.x, tmp.y, tmp.z);
GX_TexCoord2f32 ((a1 + 1.0) / 2.0, (b + 1.0) / 2.0);
}
GX_End ();
}
}
GX_CopyTex (cubemap->sphtexels, GX_TRUE);
GX_PixModeSync ();
}
static display_target
ghost_prepare_frame (sync_info *sync, void *params, int iparam)
{
glass_data *gdata = (glass_data *) params;
/*GXTexObj spiderweb_tex_obj;*/
Mtx mvtmp, rot, mvtmp2;
Mtx sep_scale;
/*TPL_GetTexture (&spiderwebTPL, spiderweb, &spiderweb_tex_obj);*/
GX_InvalidateTexAll ();
rendertarget_texture (RTT_WIDTH, RTT_HEIGHT, COPYFMT, GX_FALSE,
GX_PF_RGB8_Z24, GX_ZC_LINEAR);
GX_SetZMode (GX_FALSE, GX_LEQUAL, GX_FALSE);
GX_SetBlendMode (GX_BM_NONE, GX_BL_ONE, GX_BL_ONE, GX_LO_SET);
GX_SetColorUpdate (GX_TRUE);
GX_SetAlphaUpdate (GX_FALSE);
screenspace_rect (gdata->plain_texture_shader, GX_VTXFMT1, 0);
GX_SetCopyClear ((GXColor) { 128, 128, 128, 0 }, 0x00ffffff);
GX_CopyTex (gdata->grabbed_texture, GX_TRUE);
GX_PixModeSync ();
rendertarget_texture (RTT_WIDTH, RTT_HEIGHT, COPYFMT, GX_FALSE,
GX_PF_RGB8_Z24, GX_ZC_LINEAR);
GX_SetCopyClear ((GXColor) { 128, 128, 128, 0 }, 0x00ffffff);
GX_SetColorUpdate (GX_TRUE);
GX_SetAlphaUpdate (GX_FALSE);
/* We need a grey background! This isn't very efficient though. */
GX_CopyTex (gdata->grabbed_texture, GX_TRUE);
GX_SetCopyClear ((GXColor) { 0, 0, 0, 0 }, 0x00ffffff);
GX_SetZMode (GX_FALSE, GX_LEQUAL, GX_FALSE);
GX_SetBlendMode (GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_SET);
GX_SetColorUpdate (GX_TRUE);
GX_SetAlphaUpdate (GX_FALSE);
GX_SetCullMode (GX_CULL_NONE);
guMtxIdentity (mvtmp);
guMtxRotAxisDeg (rot, &((guVector) { 0, 1, 0 }), gdata->thr);
guMtxConcat (rot, mvtmp, mvtmp);
guMtxRotAxisDeg (rot, &((guVector) { 1, 0, 0 }), gdata->thr * 0.7);
guMtxConcat (rot, mvtmp, mvtmp);
if (sync->time_offset < 1000)
gdata->xoffset = -(float) (1000 - sync->time_offset) / 10.0;
else if (sync->time_offset > 16000)
gdata->xoffset = (float) (sync->time_offset - 16000) / 10.0;
else
gdata->xoffset = 0.0;
/*guMtxScale (sep_scale, 6.0, 6.0, 6.0);*/
set_sep_scale (sep_scale, sync);
guMtxTransApply (mvtmp, mvtmp2, gdata->xoffset, 0, 0);
object_set_matrices (&scene, &gdata->obj_loc, scene.camera, mvtmp2,
sep_scale, perspmat, GX_PERSPECTIVE);
light_update (scene.camera, &light0);
shader_load (gdata->refraction_shader);
object_set_arrays (&blobby_thing_obj, OBJECT_POS | OBJECT_NORM, GX_VTXFMT0,
0);
object_render (&blobby_thing_obj, OBJECT_POS | OBJECT_NORM, GX_VTXFMT0);
/*
guMtxTransApply (mvtmp, mvtmp2, 13, 0, 0);
object_set_matrices (&scene, &gdata->obj_loc, scene.camera, mvtmp2,
sep_scale, NULL, 0);
object_render (&spooky_ghost_obj, OBJECT_POS | OBJECT_NORM, GX_VTXFMT0);
guMtxTransApply (mvtmp, mvtmp2, -13, 0, 0);
object_set_matrices (&scene, &gdata->obj_loc, scene.camera, mvtmp2,
sep_scale, NULL, 0);
object_render (&spooky_ghost_obj, OBJECT_POS | OBJECT_NORM, GX_VTXFMT0);
*/
GX_CopyTex (gdata->grabbed_texture, GX_TRUE);
GX_PixModeSync ();
return MAIN_BUFFER;
}
