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-rw-r--r--modules/pvr/texture_loader_pvr.cpp711
1 files changed, 711 insertions, 0 deletions
diff --git a/modules/pvr/texture_loader_pvr.cpp b/modules/pvr/texture_loader_pvr.cpp
new file mode 100644
index 0000000000..3ab3240512
--- /dev/null
+++ b/modules/pvr/texture_loader_pvr.cpp
@@ -0,0 +1,711 @@
+/*************************************************************************/
+/* texture_loader_pvr.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* http://www.godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/*************************************************************************/
+#include "texture_loader_pvr.h"
+#include "os/file_access.h"
+#include <string.h>
+#include "PvrTcEncoder.h"
+#include "RgbaBitmap.h"
+
+static void _pvrtc_decompress(Image* p_img);
+
+enum PVRFLags {
+
+ PVR_HAS_MIPMAPS=0x00000100,
+ PVR_TWIDDLED=0x00000200,
+ PVR_NORMAL_MAP=0x00000400,
+ PVR_BORDER=0x00000800,
+ PVR_CUBE_MAP=0x00001000,
+ PVR_FALSE_MIPMAPS=0x00002000,
+ PVR_VOLUME_TEXTURES=0x00004000,
+ PVR_HAS_ALPHA=0x00008000,
+ PVR_VFLIP=0x00010000
+
+};
+
+
+
+RES ResourceFormatPVR::load(const String &p_path,const String& p_original_path,Error *r_error) {
+
+ if (r_error)
+ *r_error=ERR_CANT_OPEN;
+
+ Error err;
+ FileAccess *f = FileAccess::open(p_path,FileAccess::READ,&err);
+ if (!f)
+ return RES();
+
+ FileAccessRef faref(f);
+
+ ERR_FAIL_COND_V(err,RES());
+
+ if (r_error)
+ *r_error=ERR_FILE_CORRUPT;
+
+ uint32_t hsize = f->get_32();
+
+ ERR_FAIL_COND_V(hsize!=52,RES());
+ uint32_t height = f->get_32();
+ uint32_t width = f->get_32();
+ uint32_t mipmaps = f->get_32();
+ uint32_t flags = f->get_32();
+ uint32_t surfsize = f->get_32();
+ uint32_t bpp = f->get_32();
+ uint32_t rmask = f->get_32();
+ uint32_t gmask = f->get_32();
+ uint32_t bmask = f->get_32();
+ uint32_t amask = f->get_32();
+ uint8_t pvrid[5]={0,0,0,0,0};
+ f->get_buffer(pvrid,4);
+ ERR_FAIL_COND_V(String((char*)pvrid)!="PVR!",RES());
+ uint32_t surfcount = f->get_32();
+
+/*
+ print_line("height: "+itos(height));
+ print_line("width: "+itos(width));
+ print_line("mipmaps: "+itos(mipmaps));
+ print_line("flags: "+itos(flags));
+ print_line("surfsize: "+itos(surfsize));
+ print_line("bpp: "+itos(bpp));
+ print_line("rmask: "+itos(rmask));
+ print_line("gmask: "+itos(gmask));
+ print_line("bmask: "+itos(bmask));
+ print_line("amask: "+itos(amask));
+ print_line("surfcount: "+itos(surfcount));
+*/
+
+ DVector<uint8_t> data;
+ data.resize(surfsize);
+
+ ERR_FAIL_COND_V(data.size()==0,RES());
+
+
+ DVector<uint8_t>::Write w = data.write();
+ f->get_buffer(&w[0],surfsize);
+ err = f->get_error();
+ ERR_FAIL_COND_V(err!=OK,RES());
+
+ Image::Format format=Image::FORMAT_MAX;
+
+
+ switch(flags&0xFF) {
+
+ case 0x18:
+ case 0xC: format=(flags&PVR_HAS_ALPHA)?Image::FORMAT_PVRTC2_ALPHA:Image::FORMAT_PVRTC2; break;
+ case 0x19:
+ case 0xD: format=(flags&PVR_HAS_ALPHA)?Image::FORMAT_PVRTC4_ALPHA:Image::FORMAT_PVRTC4; break;
+ case 0x16:
+ format=Image::FORMAT_GRAYSCALE; break;
+ case 0x17:
+ format=Image::FORMAT_GRAYSCALE_ALPHA; break;
+ case 0x20:
+ case 0x80:
+ case 0x81:
+ format=Image::FORMAT_BC1; break;
+ case 0x21:
+ case 0x22:
+ case 0x82:
+ case 0x83:
+ format=Image::FORMAT_BC2; break;
+ case 0x23:
+ case 0x24:
+ case 0x84:
+ case 0x85:
+ format=Image::FORMAT_BC3; break;
+ case 0x4:
+ case 0x15:
+ format=Image::FORMAT_RGB; break;
+ case 0x5:
+ case 0x12:
+ format=Image::FORMAT_RGBA; break;
+ case 0x36:
+ format=Image::FORMAT_ETC; break;
+ default:
+ ERR_EXPLAIN("Unsupported format in PVR texture: "+itos(flags&0xFF));
+ ERR_FAIL_V(RES());
+
+ }
+
+ w = DVector<uint8_t>::Write();
+
+ int tex_flags=Texture::FLAG_FILTER|Texture::FLAG_REPEAT;
+
+ if (mipmaps)
+ tex_flags|=Texture::FLAG_MIPMAPS;
+
+
+ print_line("flip: "+itos(flags&PVR_VFLIP));
+
+ Image image(width,height,mipmaps,format,data);
+ ERR_FAIL_COND_V(image.empty(),RES());
+
+ Ref<ImageTexture> texture = memnew( ImageTexture );
+ texture->create_from_image(image,tex_flags);
+
+ if (r_error)
+ *r_error=OK;
+
+ return texture;
+
+}
+
+void ResourceFormatPVR::get_recognized_extensions(List<String> *p_extensions) const {
+
+ p_extensions->push_back("pvr");
+}
+bool ResourceFormatPVR::handles_type(const String& p_type) const {
+
+ return ObjectTypeDB::is_type(p_type,"Texture");
+}
+String ResourceFormatPVR::get_resource_type(const String &p_path) const {
+
+
+ if (p_path.extension().to_lower()=="pvr")
+ return "Texture";
+ return "";
+}
+
+
+
+static void _compress_pvrtc4(Image * p_img) {
+
+ Image img = *p_img;
+
+ bool make_mipmaps=false;
+ if (img.get_width()%8 || img.get_height()%8) {
+ make_mipmaps=img.get_mipmaps()>0;
+ img.resize(img.get_width()+(8-(img.get_width()%8)),img.get_height()+(8-(img.get_height()%8)));
+ }
+ img.convert(Image::FORMAT_RGBA);
+ if (img.get_mipmaps()==0 && make_mipmaps)
+ img.generate_mipmaps();
+
+ bool use_alpha=img.detect_alpha();
+
+ Image new_img;
+ new_img.create(img.get_width(),img.get_height(),true,use_alpha?Image::FORMAT_PVRTC4_ALPHA:Image::FORMAT_PVRTC4);
+ DVector<uint8_t> data=new_img.get_data();
+ {
+ DVector<uint8_t>::Write wr=data.write();
+ DVector<uint8_t>::Read r=img.get_data().read();
+
+
+ for(int i=0;i<=new_img.get_mipmaps();i++) {
+
+ int ofs,size,w,h;
+ img.get_mipmap_offset_size_and_dimensions(i,ofs,size,w,h);
+ Javelin::RgbaBitmap bm(w,h);
+ copymem(bm.GetData(),&r[ofs],size);
+ {
+ Javelin::ColorRgba<unsigned char> *dp = bm.GetData();
+ for(int j=0;j<size/4;j++) {
+ SWAP(dp[j].r,dp[j].b);
+ }
+ }
+
+ new_img.get_mipmap_offset_size_and_dimensions(i,ofs,size,w,h);
+ Javelin::PvrTcEncoder::EncodeRgba4Bpp(&wr[ofs],bm);
+ }
+
+ }
+
+ *p_img = Image(new_img.get_width(),new_img.get_height(),new_img.get_mipmaps(),new_img.get_format(),data);
+
+}
+
+ResourceFormatPVR::ResourceFormatPVR() {
+
+
+ Image::_image_decompress_pvrtc=_pvrtc_decompress;
+ Image::_image_compress_pvrtc4_func=_compress_pvrtc4;
+ Image::_image_compress_pvrtc2_func=_compress_pvrtc4;
+
+}
+
+/////////////////////////////////////////////////////////
+
+//PVRTC decompressor, Based on PVRTC decompressor by IMGTEC.
+
+/////////////////////////////////////////////////////////
+
+
+#define PT_INDEX 2
+#define BLK_Y_SIZE 4
+#define BLK_X_MAX 8
+#define BLK_X_2BPP 8
+#define BLK_X_4BPP 4
+
+#define WRAP_COORD(Val, Size) ((Val) & ((Size)-1))
+
+/*
+ Define an expression to either wrap or clamp large or small vals to the
+ legal coordinate range
+*/
+#define LIMIT_COORD(Val, Size, p_tiled) \
+ ((p_tiled)? WRAP_COORD((Val), (Size)): CLAMP((Val), 0, (Size)-1))
+
+
+struct PVRTCBlock {
+ //blocks are 64 bits
+ uint32_t data[2];
+};
+
+
+
+_FORCE_INLINE_ bool is_po2( uint32_t p_input ) {
+
+ if( p_input==0 )
+ return 0;
+ uint32_t minus1=p_input- 1;
+ return ((p_input|minus1)==(p_input^minus1))?1:0;
+}
+
+
+static void unpack_5554(const PVRTCBlock *p_block, int p_ab_colors[2][4]) {
+
+ uint32_t raw_bits[2];
+ raw_bits[0] = p_block->data[1] & (0xFFFE);
+ raw_bits[1] = p_block->data[1] >> 16;
+
+ for(int i=0;i<2;i++) {
+
+ if(raw_bits[i] & (1<<15)) {
+
+ p_ab_colors[i][0]= (raw_bits[i] >> 10) & 0x1F;
+ p_ab_colors[i][1]= (raw_bits[i] >> 5) & 0x1F;
+ p_ab_colors[i][2]= raw_bits[i] & 0x1F;
+ if(i==0)
+ p_ab_colors[0][2]|= p_ab_colors[0][2] >> 4;
+ p_ab_colors[i][3] = 0xF;
+ } else {
+
+ p_ab_colors[i][0] = (raw_bits[i] >> (8-1)) & 0x1E;
+ p_ab_colors[i][1] = (raw_bits[i] >> (4-1)) & 0x1E;
+
+ p_ab_colors[i][0] |= p_ab_colors[i][0] >> 4;
+ p_ab_colors[i][1] |= p_ab_colors[i][1] >> 4;
+
+ p_ab_colors[i][2] = (raw_bits[i] & 0xF) << 1;
+
+ if(i==0)
+ p_ab_colors[0][2] |= p_ab_colors[0][2] >> 3;
+ else
+ p_ab_colors[0][2] |= p_ab_colors[0][2] >> 4;
+
+ p_ab_colors[i][3] = (raw_bits[i] >> 11) & 0xE;
+ }
+ }
+}
+
+
+static void unpack_modulations(const PVRTCBlock *p_block, const int p_2bit, int p_modulation[8][16], int p_modulation_modes[8][16], int p_x, int p_y) {
+
+ int block_mod_mode = p_block->data[1] & 1;
+ uint32_t modulation_bits = p_block->data[0];
+
+ if(p_2bit && block_mod_mode) {
+
+ for(int y = 0; y < BLK_Y_SIZE; y++) {
+ for(int x = 0; x < BLK_X_2BPP; x++) {
+
+ p_modulation_modes[y+p_y][x+p_x] = block_mod_mode;
+
+ if(((x^y)&1) == 0) {
+ p_modulation[y+p_y][x+p_x] = modulation_bits & 3;
+ modulation_bits >>= 2;
+ }
+ }
+ }
+
+ } else if(p_2bit) {
+
+ for(int y = 0; y < BLK_Y_SIZE; y++) {
+ for(int x = 0; x < BLK_X_2BPP; x++) {
+ p_modulation_modes[y+p_y][x+p_x] = block_mod_mode;
+
+ if(modulation_bits & 1)
+ p_modulation[y+p_y][x+p_x] = 0x3;
+ else
+ p_modulation[y+p_y][x+p_x] = 0x0;
+
+ modulation_bits >>= 1;
+ }
+ }
+ } else {
+ for(int y = 0; y < BLK_Y_SIZE; y++) {
+ for(int x = 0; x < BLK_X_4BPP; x++) {
+ p_modulation_modes[y+p_y][x+p_x] = block_mod_mode;
+ p_modulation[y+p_y][x+p_x] = modulation_bits & 3;
+ modulation_bits >>= 2;
+ }
+ }
+ }
+
+ ERR_FAIL_COND(modulation_bits!=0);
+}
+
+
+
+static void interpolate_colors(const int p_colorp[4], const int p_colorq[4], const int p_colorr[4], const int p_colors[4], bool p_2bit, const int x, const int y, int r_result[4]) {
+ int u, v, uscale;
+ int k;
+
+ int tmp1, tmp2;
+
+ int P[4], Q[4], R[4], S[4];
+
+ for(k = 0; k < 4; k++) {
+ P[k] = p_colorp[k];
+ Q[k] = p_colorq[k];
+ R[k] = p_colorr[k];
+ S[k] = p_colors[k];
+ }
+
+ v = (y & 0x3) | ((~y & 0x2) << 1);
+
+ if(p_2bit)
+ u = (x & 0x7) | ((~x & 0x4) << 1);
+ else
+ u = (x & 0x3) | ((~x & 0x2) << 1);
+
+ v = v - BLK_Y_SIZE/2;
+
+ if(p_2bit) {
+ u = u - BLK_X_2BPP/2;
+ uscale = 8;
+ } else {
+ u = u - BLK_X_4BPP/2;
+ uscale = 4;
+ }
+
+ for(k = 0; k < 4; k++) {
+ tmp1 = P[k] * uscale + u * (Q[k] - P[k]);
+ tmp2 = R[k] * uscale + u * (S[k] - R[k]);
+
+ tmp1 = tmp1 * 4 + v * (tmp2 - tmp1);
+
+ r_result[k] = tmp1;
+ }
+
+ if(p_2bit) {
+ for(k = 0; k < 3; k++) {
+ r_result[k] >>= 2;
+ }
+
+ r_result[3] >>= 1;
+ } else {
+ for(k = 0; k < 3; k++) {
+ r_result[k] >>= 1;
+ }
+ }
+
+ for(k = 0; k < 4; k++) {
+ ERR_FAIL_COND(r_result[k] >= 256);
+ }
+
+
+ for(k = 0; k < 3; k++) {
+ r_result[k] += r_result[k] >> 5;
+ }
+
+ r_result[3] += r_result[3] >> 4;
+
+ for(k = 0; k < 4; k++) {
+ ERR_FAIL_COND(r_result[k] >= 256);
+ }
+
+}
+
+
+static void get_modulation_value(int x, int y, const int p_2bit, const int p_modulation[8][16], const int p_modulation_modes[8][16], int *r_mod, int *p_dopt)
+{
+ static const int rep_vals0[4] = {0, 3, 5, 8};
+ static const int rep_vals1[4] = {0, 4, 4, 8};
+
+ int mod_val;
+
+ y = (y & 0x3) | ((~y & 0x2) << 1);
+
+ if(p_2bit)
+ x = (x & 0x7) | ((~x & 0x4) << 1);
+ else
+ x = (x & 0x3) | ((~x & 0x2) << 1);
+
+ *p_dopt = 0;
+
+ if(p_modulation_modes[y][x]==0) {
+ mod_val = rep_vals0[p_modulation[y][x]];
+ } else if(p_2bit) {
+ if(((x^y)&1)==0)
+ mod_val = rep_vals0[p_modulation[y][x]];
+ else if(p_modulation_modes[y][x] == 1) {
+ mod_val = (rep_vals0[p_modulation[y-1][x]] +
+ rep_vals0[p_modulation[y+1][x]] +
+ rep_vals0[p_modulation[y][x-1]] +
+ rep_vals0[p_modulation[y][x+1]] + 2) / 4;
+ } else if(p_modulation_modes[y][x] == 2) {
+ mod_val = (rep_vals0[p_modulation[y][x-1]] +
+ rep_vals0[p_modulation[y][x+1]] + 1) / 2;
+ } else {
+ mod_val = (rep_vals0[p_modulation[y-1][x]] +
+ rep_vals0[p_modulation[y+1][x]] + 1) / 2;
+ }
+ } else {
+ mod_val = rep_vals1[p_modulation[y][x]];
+
+ *p_dopt = p_modulation[y][x] == PT_INDEX;
+ }
+
+ *r_mod =mod_val;
+}
+
+
+static int disable_twiddling = 0;
+
+static uint32_t twiddle_uv(uint32_t p_height, uint32_t p_width, uint32_t p_y, uint32_t p_x) {
+
+ uint32_t twiddled;
+
+ uint32_t min_dimension;
+ uint32_t max_value;
+
+ uint32_t scr_bit_pos;
+ uint32_t dst_bit_pos;
+
+ int shift_count;
+
+ ERR_FAIL_COND_V(p_y >= p_height,0);
+ ERR_FAIL_COND_V(p_x >= p_width,0);
+
+ ERR_FAIL_COND_V(!is_po2(p_height),0);
+ ERR_FAIL_COND_V(!is_po2(p_width),0);
+
+ if(p_height < p_width) {
+ min_dimension = p_height;
+ max_value = p_x;
+ } else {
+ min_dimension = p_width;
+ max_value = p_y;
+ }
+
+ if(disable_twiddling)
+ return (p_y* p_width + p_x);
+
+ scr_bit_pos = 1;
+ dst_bit_pos = 1;
+ twiddled = 0;
+ shift_count = 0;
+
+ while(scr_bit_pos < min_dimension) {
+ if(p_y & scr_bit_pos) {
+ twiddled |= dst_bit_pos;
+ }
+
+ if(p_x & scr_bit_pos) {
+ twiddled |= (dst_bit_pos << 1);
+ }
+
+ scr_bit_pos <<= 1;
+ dst_bit_pos <<= 2;
+ shift_count += 1;
+
+ }
+
+ max_value >>= shift_count;
+
+ twiddled |= (max_value << (2*shift_count));
+
+ return twiddled;
+}
+
+static void decompress_pvrtc(PVRTCBlock *p_comp_img, const int p_2bit, const int p_width, const int p_height, const int p_tiled, unsigned char* p_dst) {
+ int x, y;
+ int i, j;
+
+ int block_x, blk_y;
+ int block_xp1, blk_yp1;
+ int x_block_size;
+ int block_width, block_height;
+
+ int p_x, p_y;
+
+ int p_modulation[8][16];
+ int p_modulation_modes[8][16];
+
+ int Mod, DoPT;
+
+ unsigned int u_pos;
+
+ // local neighbourhood of blocks
+ PVRTCBlock *p_blocks[2][2];
+
+ PVRTCBlock *prev[2][2] = {{NULL, NULL}, {NULL, NULL}};
+
+ struct
+ {
+ int Reps[2][4];
+ }colors5554[2][2];
+
+
+ int ASig[4], BSig[4];
+
+ int r_result[4];
+
+ if(p_2bit)
+ x_block_size = BLK_X_2BPP;
+ else
+ x_block_size = BLK_X_4BPP;
+
+
+ block_width = MAX(2, p_width / x_block_size);
+ block_height = MAX(2, p_height / BLK_Y_SIZE);
+
+ for(y = 0; y < p_height; y++)
+ {
+ for(x = 0; x < p_width; x++)
+ {
+
+ block_x = (x - x_block_size/2);
+ blk_y = (y - BLK_Y_SIZE/2);
+
+ block_x = LIMIT_COORD(block_x, p_width, p_tiled);
+ blk_y = LIMIT_COORD(blk_y, p_height, p_tiled);
+
+
+ block_x /= x_block_size;
+ blk_y /= BLK_Y_SIZE;
+
+ block_xp1 = LIMIT_COORD(block_x+1, block_width, p_tiled);
+ blk_yp1 = LIMIT_COORD(blk_y+1, block_height, p_tiled);
+
+ p_blocks[0][0] = p_comp_img +twiddle_uv(block_height, block_width, blk_y, block_x);
+ p_blocks[0][1] = p_comp_img +twiddle_uv(block_height, block_width, blk_y, block_xp1);
+ p_blocks[1][0] = p_comp_img +twiddle_uv(block_height, block_width, blk_yp1, block_x);
+ p_blocks[1][1] = p_comp_img +twiddle_uv(block_height, block_width, blk_yp1, block_xp1);
+
+ if(memcmp(prev, p_blocks, 4*sizeof(void*)) != 0) {
+ p_y = 0;
+ for(i = 0; i < 2; i++) {
+ p_x = 0;
+ for(j = 0; j < 2; j++) {
+ unpack_5554(p_blocks[i][j], colors5554[i][j].Reps);
+
+ unpack_modulations(p_blocks[i][j],
+ p_2bit,
+ p_modulation,
+ p_modulation_modes,
+ p_x, p_y);
+
+ p_x += x_block_size;
+ }
+
+ p_y += BLK_Y_SIZE;
+ }
+
+
+ memcpy(prev, p_blocks, 4*sizeof(void*));
+ }
+
+
+ interpolate_colors(colors5554[0][0].Reps[0],
+ colors5554[0][1].Reps[0],
+ colors5554[1][0].Reps[0],
+ colors5554[1][1].Reps[0],
+ p_2bit, x, y,
+ ASig);
+
+ interpolate_colors(colors5554[0][0].Reps[1],
+ colors5554[0][1].Reps[1],
+ colors5554[1][0].Reps[1],
+ colors5554[1][1].Reps[1],
+ p_2bit, x, y,
+ BSig);
+
+ get_modulation_value(x,y, p_2bit, (const int (*)[16])p_modulation, (const int (*)[16])p_modulation_modes,
+ &Mod, &DoPT);
+
+ for(i = 0; i < 4; i++) {
+ r_result[i] = ASig[i] * 8 + Mod * (BSig[i] - ASig[i]);
+ r_result[i] >>= 3;
+ }
+
+ if(DoPT)
+ r_result[3] = 0;
+
+
+ u_pos = (x+y*p_width)<<2;
+ p_dst[u_pos+0] = (uint8_t)r_result[0];
+ p_dst[u_pos+1] = (uint8_t)r_result[1];
+ p_dst[u_pos+2] = (uint8_t)r_result[2];
+ p_dst[u_pos+3] = (uint8_t)r_result[3];
+ }
+ }
+}
+
+static void _pvrtc_decompress(Image* p_img) {
+
+// static void decompress_pvrtc(const void *p_comp_img, const int p_2bit, const int p_width, const int p_height, unsigned char* p_dst) {
+// decompress_pvrtc((PVRTCBlock*)p_comp_img,p_2bit,p_width,p_height,1,p_dst);
+// }
+
+ ERR_FAIL_COND( p_img->get_format()!=Image::FORMAT_PVRTC2 && p_img->get_format()!=Image::FORMAT_PVRTC2_ALPHA && p_img->get_format()!=Image::FORMAT_PVRTC4 && p_img->get_format()!=Image::FORMAT_PVRTC4_ALPHA);
+
+ bool _2bit = (p_img->get_format()==Image::FORMAT_PVRTC2 || p_img->get_format()==Image::FORMAT_PVRTC2_ALPHA );
+
+ DVector<uint8_t> data = p_img->get_data();
+ DVector<uint8_t>::Read r = data.read();
+
+
+ DVector<uint8_t> newdata;
+ newdata.resize( p_img->get_width() * p_img->get_height() * 4);
+ DVector<uint8_t>::Write w=newdata.write();
+
+ decompress_pvrtc((PVRTCBlock*)r.ptr(),_2bit,p_img->get_width(),p_img->get_height(),0,(unsigned char*)w.ptr());
+
+ //for(int i=0;i<newdata.size();i++) {
+ // print_line(itos(w[i]));
+ //}
+
+ w=DVector<uint8_t>::Write();
+ r=DVector<uint8_t>::Read();
+
+ bool make_mipmaps=p_img->get_mipmaps()>0;
+ Image newimg(p_img->get_width(),p_img->get_height(),0,Image::FORMAT_RGBA,newdata);
+ if (make_mipmaps)
+ newimg.generate_mipmaps();
+ *p_img=newimg;
+
+}
+
+
+
+
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-20 02:52:55 +0000