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Added a PVRTC encoder for iOS

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This commit is contained in:
Juan Linietsky 2015-04-06 21:48:20 -03:00
parent 5d99e15e43
commit b36e41cb71
25 changed files with 1648 additions and 16 deletions
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12
bin/tests/test_gui.cpp
View file

@ -132,7 +132,7 @@ public:
frame->add_child( button );
#if 0
Sprite *tf = memnew( Sprite );
frame->add_child(tf);
Image img;
@ -140,14 +140,14 @@ public:
img.resize(512,512);
img.generate_mipmaps();
img.compress();
Ref<Texture> text = memnew( Texture );
text->create_from_image(img);
tf->set_texture(text);
img.compress(Image::COMPRESS_PVRTC4);
Ref<ImageTexture> tt = memnew( ImageTexture );
tt->create_from_image(img);
tf->set_texture(tt);
tf->set_pos(Point2(50,50));
//tf->set_scale(Point2(0.3,0.3));
#if 0
return;
#endif

12
core/image.cpp
View file

@ -134,6 +134,18 @@ void Image::get_mipmap_offset_and_size(int p_mipmap,int &r_ofs, int &r_size) con
}
void Image::get_mipmap_offset_size_and_dimensions(int p_mipmap,int &r_ofs, int &r_size,int &w, int& h) const {
int ofs;
_get_mipmap_offset_and_size(p_mipmap,ofs,w,h);
int ofs2,w2,h2;
_get_mipmap_offset_and_size(p_mipmap+1,ofs2,w2,h2);
r_ofs=ofs;
r_size=ofs2-ofs;
}
void Image::put_pixel(int p_x,int p_y, const Color& p_color,int p_mipmap){
ERR_FAIL_INDEX(p_mipmap,mipmaps+1);

1
core/image.h
View file

@ -236,6 +236,7 @@ public:
int get_mipmap_offset(int p_mipmap) const; //get where the mipmap begins in data
void get_mipmap_offset_and_size(int p_mipmap,int &r_ofs, int &r_size) const; //get where the mipmap begins in data
void get_mipmap_offset_size_and_dimensions(int p_mipmap,int &r_ofs, int &r_size,int &w, int& h) const; //get where the mipmap begins in data
/**
* Resize the image, using the prefered interpolation method.

17
drivers/gles2/rasterizer_gles2.cpp
View file

@ -1033,32 +1033,33 @@ void RasterizerGLES2::texture_set_data(RID p_texture,const Image& p_image,VS::Cu
int mipmaps= (texture->flags&VS::TEXTURE_FLAG_MIPMAPS && img.get_mipmaps()>0) ? img.get_mipmaps() +1 : 1;
int w=img.get_width();
int h=img.get_height();
//int w=img.get_width();
//int h=img.get_height();
int tsize=0;
for(int i=0;i<mipmaps;i++) {
int size,ofs;
img.get_mipmap_offset_and_size(i,ofs,size);
int mm_w,mm_h;
img.get_mipmap_offset_size_and_dimensions(i,ofs,size,mm_w,mm_h);
if (texture->compressed) {
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glCompressedTexImage2D( blit_target, i, format,w,h,0,size,&read[ofs] );
glCompressedTexImage2D( blit_target, i, format,mm_w,mm_h,0,size,&read[ofs] );
} else {
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if (texture->flags&VS::TEXTURE_FLAG_VIDEO_SURFACE) {
glTexSubImage2D( blit_target, i, 0,0,w,h,format,GL_UNSIGNED_BYTE,&read[ofs] );
glTexSubImage2D( blit_target, i, 0,0,mm_w, mm_h,format,GL_UNSIGNED_BYTE,&read[ofs] );
} else {
glTexImage2D(blit_target, i, internal_format, w, h, 0, format, GL_UNSIGNED_BYTE,&read[ofs]);
glTexImage2D(blit_target, i, internal_format, mm_w, mm_h, 0, format, GL_UNSIGNED_BYTE,&read[ofs]);
}
}
tsize+=size;
w = MAX(1,w>>1);
h = MAX(1,h>>1);
//w = MAX(Image::,w>>1);
//h = MAX(1,h>>1);
}

18
drivers/pvr/AlphaBitmap.h Normal file
View file

@ -0,0 +1,18 @@
#pragma once
#include "Bitmap.h"
namespace Javelin {
class AlphaBitmap : public Bitmap {
public:
AlphaBitmap(int w, int h)
: Bitmap(w, h, 1) {
}
const unsigned char *GetData() const { return data; }
unsigned char *GetData() { return data; }
};
}

184
drivers/pvr/BitScale.cpp Normal file
View file

@ -0,0 +1,184 @@
#include "BitScale.h"
const uint8_t Javelin::Data::BITSCALE_5_TO_8[32] = {
0, 8, 16, 24, 32, 41, 49, 57, 65, 74,
82, 90, 98, 106, 115, 123, 131, 139, 148, 156,
164, 172, 180, 189, 197, 205, 213, 222, 230, 238,
246, 255};
const uint8_t Javelin::Data::BITSCALE_4_TO_8[16] = {
0, 17, 34, 51, 68, 85, 102, 119, 136, 153,
170, 187, 204, 221, 238, 255};
const uint8_t Javelin::Data::BITSCALE_3_TO_8[8] = {
0, 36, 72, 109, 145, 182, 218, 255};
const uint8_t Javelin::Data::BITSCALE_8_TO_5_FLOOR[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
3, 3, 3, 4, 4, 4, 4, 4, 4, 4,
4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 7, 7,
7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 8, 8, 8, 9, 9, 9, 9, 9,
9, 9, 9, 10, 10, 10, 10, 10, 10, 10,
10, 11, 11, 11, 11, 11, 11, 11, 11, 12,
12, 12, 12, 12, 12, 12, 12, 13, 13, 13,
13, 13, 13, 13, 13, 13, 14, 14, 14, 14,
14, 14, 14, 14, 15, 15, 15, 15, 15, 15,
15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
17, 17, 17, 17, 17, 17, 17, 17, 17, 18,
18, 18, 18, 18, 18, 18, 18, 19, 19, 19,
19, 19, 19, 19, 19, 20, 20, 20, 20, 20,
20, 20, 20, 21, 21, 21, 21, 21, 21, 21,
21, 22, 22, 22, 22, 22, 22, 22, 22, 22,
23, 23, 23, 23, 23, 23, 23, 23, 24, 24,
24, 24, 24, 24, 24, 24, 25, 25, 25, 25,
25, 25, 25, 25, 26, 26, 26, 26, 26, 26,
26, 26, 26, 27, 27, 27, 27, 27, 27, 27,
27, 28, 28, 28, 28, 28, 28, 28, 28, 29,
29, 29, 29, 29, 29, 29, 29, 30, 30, 30,
30, 30, 30, 30, 30, 31};
const uint8_t Javelin::Data::BITSCALE_8_TO_4_FLOOR[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 15};
const uint8_t Javelin::Data::BITSCALE_8_TO_3_FLOOR[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 7};
const uint8_t Javelin::Data::BITSCALE_8_TO_5_CEIL[256] = {
0, 1, 1, 1, 1, 1, 1, 1, 1, 2,
2, 2, 2, 2, 2, 2, 2, 3, 3, 3,
3, 3, 3, 3, 3, 4, 4, 4, 4, 4,
4, 4, 4, 5, 5, 5, 5, 5, 5, 5,
5, 5, 6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 8, 8,
8, 8, 8, 8, 8, 8, 9, 9, 9, 9,
9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
10, 10, 10, 11, 11, 11, 11, 11, 11, 11,
11, 12, 12, 12, 12, 12, 12, 12, 12, 13,
13, 13, 13, 13, 13, 13, 13, 14, 14, 14,
14, 14, 14, 14, 14, 14, 15, 15, 15, 15,
15, 15, 15, 15, 16, 16, 16, 16, 16, 16,
16, 16, 17, 17, 17, 17, 17, 17, 17, 17,
18, 18, 18, 18, 18, 18, 18, 18, 18, 19,
19, 19, 19, 19, 19, 19, 19, 20, 20, 20,
20, 20, 20, 20, 20, 21, 21, 21, 21, 21,
21, 21, 21, 22, 22, 22, 22, 22, 22, 22,
22, 23, 23, 23, 23, 23, 23, 23, 23, 23,
24, 24, 24, 24, 24, 24, 24, 24, 25, 25,
25, 25, 25, 25, 25, 25, 26, 26, 26, 26,
26, 26, 26, 26, 27, 27, 27, 27, 27, 27,
27, 27, 27, 28, 28, 28, 28, 28, 28, 28,
28, 29, 29, 29, 29, 29, 29, 29, 29, 30,
30, 30, 30, 30, 30, 30, 30, 31, 31, 31,
31, 31, 31, 31, 31, 31};
const uint8_t Javelin::Data::BITSCALE_8_TO_4_CEIL[256] = {
0, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15};
const uint8_t Javelin::Data::BITSCALE_8_TO_3_CEIL[256] = {
0, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7};

28
drivers/pvr/BitScale.h Normal file
View file

@ -0,0 +1,28 @@
//============================================================================
#pragma once
#include "typedefs.h"
//============================================================================
namespace Javelin
{
namespace Data
{
//============================================================================
extern const uint8_t BITSCALE_5_TO_8[32];
extern const uint8_t BITSCALE_4_TO_8[16];
extern const uint8_t BITSCALE_3_TO_8[8];
extern const uint8_t BITSCALE_8_TO_5_FLOOR[256];
extern const uint8_t BITSCALE_8_TO_4_FLOOR[256];
extern const uint8_t BITSCALE_8_TO_3_FLOOR[256];
extern const uint8_t BITSCALE_8_TO_5_CEIL[256];
extern const uint8_t BITSCALE_8_TO_4_CEIL[256];
extern const uint8_t BITSCALE_8_TO_3_CEIL[256];
//============================================================================
} // namespace Data
} // namespace Javelin
//============================================================================

19
drivers/pvr/BitUtility.h Normal file
View file

@ -0,0 +1,19 @@
#pragma once
namespace Javelin {
class BitUtility {
public:
static bool IsPowerOf2(unsigned int x) {
return (x & (x - 1)) == 0;
}
static unsigned int RotateRight(unsigned int value, unsigned int shift) {
if ((shift &= sizeof(value) * 8 - 1) == 0) {
return value;
}
return (value >> shift) | (value << (sizeof(value) * 8 - shift));
}
};
}

34
drivers/pvr/Bitmap.h Normal file
View file

@ -0,0 +1,34 @@
#pragma once
#include "Point2.h"
namespace Javelin {
class Bitmap {
public:
int width;
int height;
unsigned char *data;
Bitmap(int w, int h, int bytesPerPixel)
: width(w)
, height(h)
, data(new unsigned char[width * height * bytesPerPixel]) {
}
virtual ~Bitmap() {
delete [] data;
}
Point2<int> GetSize() const { return Point2<int>(width, height); }
int GetArea() const { return width * height; }
int GetBitmapWidth() const { return width; }
int GetBitmapHeight() const { return height; }
const unsigned char *GetRawData() const { return data; }
};
}

152
drivers/pvr/ColorRgba.h Normal file
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@ -0,0 +1,152 @@
#pragma once
namespace Javelin {
template<typename T>
class ColorRgb {
public:
T b;
T g;
T r;
ColorRgb()
: r(0)
, g(0)
, b(0) {
}
ColorRgb(T red, T green, T blue)
: r(red)
, g(green)
, b(blue) {
}
ColorRgb(const ColorRgb<T> &x)
: r(x.r)
, g(x.g)
, b(x.b) {
}
ColorRgb<int> operator *(int x) {
return ColorRgb<int>(r * x, g * x, b * x);
}
ColorRgb<int> operator +(const ColorRgb<T> &x) const {
return ColorRgb<int>(r + (int)x.r, g + (int)x.g, b + (int)x.b);
}
ColorRgb<int> operator -(const ColorRgb<T> &x) const {
return ColorRgb<int>(r - (int)x.r, g - (int)x.g, b - (int)x.b);
}
int operator %(const ColorRgb<T> &x) const {
return r * (int)x.r + g * (int)x.g + b * (int)x.b;
}
bool operator ==(const ColorRgb<T> &x) const {
return r == x.r && g == x.g && b == x.b;
}
bool operator !=(const ColorRgb<T> &x) const {
return r != x.r || g != x.g || b != x.b;
}
void SetMin(const ColorRgb<T> &x) {
if (x.r < r) {
r = x.r;
}
if (x.g < g) {
g = x.g;
}
if (x.b < b) {
b = x.b;
}
}
void SetMax(const ColorRgb<T> &x) {
if (x.r > r) {
r = x.r;
}
if (x.g > g) {
g = x.g;
}
if (x.b > b) {
b = x.b;
}
}
};
template<typename T>
class ColorRgba : public ColorRgb<T> {
public:
T a;
ColorRgba() :
a(0) {
}
ColorRgba(T red, T green, T blue, T alpha)
: ColorRgb<T>(red, green, blue)
, a(alpha) {
}
ColorRgba(const ColorRgba<T> &x)
: ColorRgb<T>(x.r, x.g, x.b)
, a(x.a) {
}
ColorRgba<int> operator *(int x) {
return ColorRgba<T>(ColorRgb<T>::r * x,
ColorRgb<T>::g * x,
ColorRgb<T>::b * x,
a * x);
}
ColorRgba<int> operator +(const ColorRgba<T> &x) {
return ColorRgba<T>(ColorRgb<T>::r + (int)x.r,
ColorRgb<T>::g + (int)x.g,
ColorRgb<T>::b + (int)x.b,
a + (int)x.a);
}
ColorRgba<int> operator -(const ColorRgba<T> &x) {
return ColorRgba<T>(ColorRgb<T>::r - (int)x.r,
ColorRgb<T>::g - (int)x.g,
ColorRgb<T>::b - (int)x.b,
a - (int)x.a);
}
int operator %(const ColorRgba<T> &x) {
return ColorRgb<T>::r * (int)x.r +
ColorRgb<T>::g * (int)x.g +
ColorRgb<T>::b * (int)x.b +
a * (int)x.a;
}
bool operator ==(const ColorRgba<T> &x) {
return ColorRgb<T>::r == x.r && ColorRgb<T>::g == x.g &&
ColorRgb<T>::b == x.b && a == x.a;
}
bool operator !=(const ColorRgba<T> &x) {
return ColorRgb<T>::r != x.r || ColorRgb<T>::g != x.g ||
ColorRgb<T>::b != x.b || a != x.a;
}
void SetMin(const ColorRgba<T> &x) {
ColorRgb<T>::SetMin(x);
if (x.a < a) {
a = x.a;
}
}
void SetMax(const ColorRgba<T> &x) {
ColorRgb<T>::SetMax(x);
if (x.a > a) {
a = x.a;
}
}
};
}

21
drivers/pvr/Interval.h Normal file
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@ -0,0 +1,21 @@
#pragma once
namespace Javelin {
template<typename T>
class Interval {
public:
T min;
T max;
Interval() {
}
Interval<T> &operator|=(const T &x) {
min.SetMin(x);
max.SetMax(x);
return *this;
}
};
}

43
drivers/pvr/MortonTable.cpp Normal file
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@ -0,0 +1,43 @@
//============================================================================
#include "MortonTable.h"
//============================================================================
const unsigned short Javelin::Data::MORTON_TABLE[256] =
{
0x0000, 0x0001, 0x0004, 0x0005, 0x0010, 0x0011, 0x0014, 0x0015,
0x0040, 0x0041, 0x0044, 0x0045, 0x0050, 0x0051, 0x0054, 0x0055,
0x0100, 0x0101, 0x0104, 0x0105, 0x0110, 0x0111, 0x0114, 0x0115,
0x0140, 0x0141, 0x0144, 0x0145, 0x0150, 0x0151, 0x0154, 0x0155,
0x0400, 0x0401, 0x0404, 0x0405, 0x0410, 0x0411, 0x0414, 0x0415,
0x0440, 0x0441, 0x0444, 0x0445, 0x0450, 0x0451, 0x0454, 0x0455,
0x0500, 0x0501, 0x0504, 0x0505, 0x0510, 0x0511, 0x0514, 0x0515,
0x0540, 0x0541, 0x0544, 0x0545, 0x0550, 0x0551, 0x0554, 0x0555,
0x1000, 0x1001, 0x1004, 0x1005, 0x1010, 0x1011, 0x1014, 0x1015,
0x1040, 0x1041, 0x1044, 0x1045, 0x1050, 0x1051, 0x1054, 0x1055,
0x1100, 0x1101, 0x1104, 0x1105, 0x1110, 0x1111, 0x1114, 0x1115,
0x1140, 0x1141, 0x1144, 0x1145, 0x1150, 0x1151, 0x1154, 0x1155,
0x1400, 0x1401, 0x1404, 0x1405, 0x1410, 0x1411, 0x1414, 0x1415,
0x1440, 0x1441, 0x1444, 0x1445, 0x1450, 0x1451, 0x1454, 0x1455,
0x1500, 0x1501, 0x1504, 0x1505, 0x1510, 0x1511, 0x1514, 0x1515,
0x1540, 0x1541, 0x1544, 0x1545, 0x1550, 0x1551, 0x1554, 0x1555,
0x4000, 0x4001, 0x4004, 0x4005, 0x4010, 0x4011, 0x4014, 0x4015,
0x4040, 0x4041, 0x4044, 0x4045, 0x4050, 0x4051, 0x4054, 0x4055,
0x4100, 0x4101, 0x4104, 0x4105, 0x4110, 0x4111, 0x4114, 0x4115,
0x4140, 0x4141, 0x4144, 0x4145, 0x4150, 0x4151, 0x4154, 0x4155,
0x4400, 0x4401, 0x4404, 0x4405, 0x4410, 0x4411, 0x4414, 0x4415,
0x4440, 0x4441, 0x4444, 0x4445, 0x4450, 0x4451, 0x4454, 0x4455,
0x4500, 0x4501, 0x4504, 0x4505, 0x4510, 0x4511, 0x4514, 0x4515,
0x4540, 0x4541, 0x4544, 0x4545, 0x4550, 0x4551, 0x4554, 0x4555,
0x5000, 0x5001, 0x5004, 0x5005, 0x5010, 0x5011, 0x5014, 0x5015,
0x5040, 0x5041, 0x5044, 0x5045, 0x5050, 0x5051, 0x5054, 0x5055,
0x5100, 0x5101, 0x5104, 0x5105, 0x5110, 0x5111, 0x5114, 0x5115,
0x5140, 0x5141, 0x5144, 0x5145, 0x5150, 0x5151, 0x5154, 0x5155,
0x5400, 0x5401, 0x5404, 0x5405, 0x5410, 0x5411, 0x5414, 0x5415,
0x5440, 0x5441, 0x5444, 0x5445, 0x5450, 0x5451, 0x5454, 0x5455,
0x5500, 0x5501, 0x5504, 0x5505, 0x5510, 0x5511, 0x5514, 0x5515,
0x5540, 0x5541, 0x5544, 0x5545, 0x5550, 0x5551, 0x5554, 0x5555
};
//============================================================================

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//============================================================================
#pragma once
//============================================================================
namespace Javelin
{
namespace Data
{
//============================================================================
extern const unsigned short MORTON_TABLE[256];
//============================================================================
} // namespace Data
} // namespace Javelin
//============================================================================

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drivers/pvr/Point2.h Normal file
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#pragma once
namespace Javelin {
template<typename T>
class Point2 {
public:
T x;
T y;
Point2(int a, int b)
: x(a)
, y(b) {
}
};
}

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drivers/pvr/PvrTcDecoder.cpp Normal file
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//============================================================================
#include "PvrTcDecoder.h"
#include "PvrTcPacket.h"
#include "MortonTable.h"
#include <assert.h>
//============================================================================
using namespace Javelin;
using Data::MORTON_TABLE;
//============================================================================
inline unsigned PvrTcDecoder::GetMortonNumber(int x, int y)
{
return MORTON_TABLE[x >> 8] << 17 | MORTON_TABLE[y >> 8] << 16 | MORTON_TABLE[x & 0xFF] << 1 | MORTON_TABLE[y & 0xFF];
}
//============================================================================
void PvrTcDecoder::DecodeRgb4Bpp(ColorRgb<unsigned char>* result, const Point2<int>& size, const void* data)
{
assert(size.x == size.y);
const int blocks = size.x / 4;
const int blockMask = blocks-1;
const PvrTcPacket* packets = static_cast<const PvrTcPacket*>(data);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
const PvrTcPacket* packet = packets + GetMortonNumber(x, y);
unsigned mod = packet->modulationData;
const unsigned char (*weights)[4] = PvrTcPacket::WEIGHTS + 4*packet->usePunchthroughAlpha;
const unsigned char (*factor)[4] = PvrTcPacket::BILINEAR_FACTORS;
for(int py = 0; py < 4; ++py)
{
const int yOffset = (py < 2) ? -1 : 0;
const int y0 = (y + yOffset) & blockMask;
const int y1 = (y0+1) & blockMask;
for(int px = 0; px < 4; ++px)
{
const int xOffset = (px < 2) ? -1 : 0;
const int x0 = (x + xOffset) & blockMask;
const int x1 = (x0+1) & blockMask;
const PvrTcPacket* p0 = packets + GetMortonNumber(x0, y0);
const PvrTcPacket* p1 = packets + GetMortonNumber(x1, y0);
const PvrTcPacket* p2 = packets + GetMortonNumber(x0, y1);
const PvrTcPacket* p3 = packets + GetMortonNumber(x1, y1);
ColorRgb<int> ca = p0->GetColorRgbA() * (*factor)[0] +
p1->GetColorRgbA() * (*factor)[1] +
p2->GetColorRgbA() * (*factor)[2] +
p3->GetColorRgbA() * (*factor)[3];
ColorRgb<int> cb = p0->GetColorRgbB() * (*factor)[0] +
p1->GetColorRgbB() * (*factor)[1] +
p2->GetColorRgbB() * (*factor)[2] +
p3->GetColorRgbB() * (*factor)[3];
const unsigned char* w = weights[mod&3];
ColorRgb<unsigned char> c;
c.r = (ca.r * w[0] + cb.r * w[1]) >> 7;
c.g = (ca.g * w[0] + cb.g * w[1]) >> 7;
c.b = (ca.b * w[0] + cb.b * w[1]) >> 7;
result[(py+y*4)*size.x + (px+x*4)] = c;
mod >>= 2;
factor++;
}
}
}
}
}
void PvrTcDecoder::DecodeRgba4Bpp(ColorRgba<unsigned char>* result, const Point2<int>& size, const void* data)
{
assert(size.x == size.y);
const int blocks = size.x / 4;
const int blockMask = blocks-1;
const PvrTcPacket* packets = static_cast<const PvrTcPacket*>(data);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
const PvrTcPacket* packet = packets + GetMortonNumber(x, y);
unsigned mod = packet->modulationData;
const unsigned char (*weights)[4] = PvrTcPacket::WEIGHTS + 4*packet->usePunchthroughAlpha;
const unsigned char (*factor)[4] = PvrTcPacket::BILINEAR_FACTORS;
for(int py = 0; py < 4; ++py)
{
const int yOffset = (py < 2) ? -1 : 0;
const int y0 = (y + yOffset) & blockMask;
const int y1 = (y0+1) & blockMask;
for(int px = 0; px < 4; ++px)
{
const int xOffset = (px < 2) ? -1 : 0;
const int x0 = (x + xOffset) & blockMask;
const int x1 = (x0+1) & blockMask;
const PvrTcPacket* p0 = packets + GetMortonNumber(x0, y0);
const PvrTcPacket* p1 = packets + GetMortonNumber(x1, y0);
const PvrTcPacket* p2 = packets + GetMortonNumber(x0, y1);
const PvrTcPacket* p3 = packets + GetMortonNumber(x1, y1);
ColorRgba<int> ca = p0->GetColorRgbaA() * (*factor)[0] +
p1->GetColorRgbaA() * (*factor)[1] +
p2->GetColorRgbaA() * (*factor)[2] +
p3->GetColorRgbaA() * (*factor)[3];
ColorRgba<int> cb = p0->GetColorRgbaB() * (*factor)[0] +
p1->GetColorRgbaB() * (*factor)[1] +
p2->GetColorRgbaB() * (*factor)[2] +
p3->GetColorRgbaB() * (*factor)[3];
const unsigned char* w = weights[mod&3];
ColorRgba<unsigned char> c;
c.r = (ca.r * w[0] + cb.r * w[1]) >> 7;
c.g = (ca.g * w[0] + cb.g * w[1]) >> 7;
c.b = (ca.b * w[0] + cb.b * w[1]) >> 7;
c.a = (ca.a * w[2] + cb.a * w[3]) >> 7;
result[(py+y*4)*size.x + (px+x*4)] = c;
mod >>= 2;
factor++;
}
}
}
}
}
//============================================================================

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//============================================================================
#pragma once
#include "Point2.h"
#include "ColorRgba.h"
//============================================================================
namespace Javelin
{
//============================================================================
class PvrTcDecoder
{
public:
static void DecodeRgb4Bpp(ColorRgb<unsigned char>* result, const Point2<int>& size, const void* data);
static void DecodeRgba4Bpp(ColorRgba<unsigned char>* result, const Point2<int>& size, const void* data);
private:
static unsigned GetMortonNumber(int x, int y);
};
//============================================================================
}
//============================================================================

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drivers/pvr/PvrTcEncoder.cpp Normal file
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//============================================================================
#include "PvrTcEncoder.h"
#include "AlphaBitmap.h"
#include "PvrTcPacket.h"
#include "RgbBitmap.h"
#include "RgbaBitmap.h"
#include "MortonTable.h"
#include "BitUtility.h"
#include "Interval.h"
#include <assert.h>
#include <math.h>
#include <stdint.h>
//============================================================================
using namespace Javelin;
using Data::MORTON_TABLE;
//============================================================================
static const unsigned char MODULATION_LUT[16] =
{
0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3
};
//============================================================================
inline unsigned PvrTcEncoder::GetMortonNumber(int x, int y)
{
return MORTON_TABLE[x >> 8] << 17 | MORTON_TABLE[y >> 8] << 16 | MORTON_TABLE[x & 0xFF] << 1 | MORTON_TABLE[y & 0xFF];
}
//============================================================================
void PvrTcEncoder::EncodeAlpha2Bpp(void* result, const AlphaBitmap& bitmap)
{
int size = bitmap.GetBitmapWidth();
assert(size == bitmap.GetBitmapHeight());
assert(BitUtility::IsPowerOf2(size));
// Blocks in each dimension.
int xBlocks = size/8;
int yBlocks = size/4;
const unsigned char* bitmapData = bitmap.GetRawData();
PvrTcPacket* packets = static_cast<PvrTcPacket*>(result);
for(int y = 0; y < yBlocks; ++y)
{
for(int x = 0; x < xBlocks; ++x)
{
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->usePunchthroughAlpha = 0;
packet->colorAIsOpaque = 0;
packet->colorA = 0x7ff; // White, with 0 alpha
packet->colorBIsOpaque = 1;
packet->colorB = 0x7fff; // White with full alpha
const unsigned char* blockBitmapData = &bitmapData[y*4*size + x*8];
uint32_t modulationData = 0;
for(int py = 0; py < 4; ++py)
{
const unsigned char* rowBitmapData = blockBitmapData;
for(int px = 0; px < 8; ++px)
{
unsigned char pixel = *rowBitmapData++;
modulationData = BitUtility::RotateRight(modulationData | (pixel >> 7), 1);
}
blockBitmapData += size;
}
packet->modulationData = modulationData;
}
}
}
void PvrTcEncoder::EncodeAlpha4Bpp(void* result, const AlphaBitmap& bitmap)
{
int size = bitmap.GetBitmapWidth();
assert(size == bitmap.GetBitmapHeight());
assert(BitUtility::IsPowerOf2(size));
// Blocks in each dimension.
int blocks = size/4;
const unsigned char* bitmapData = bitmap.GetRawData();
PvrTcPacket* packets = static_cast<PvrTcPacket*>(result);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->usePunchthroughAlpha = 0;
packet->colorAIsOpaque = 0;
packet->colorA = 0x7ff; // White, with 0 alpha
packet->colorBIsOpaque = 1;
packet->colorB = 0x7fff; // White with full alpha
const unsigned char* blockBitmapData = &bitmapData[(y*size + x)*4];
uint32_t modulationData = 0;
for(int py = 0; py < 4; ++py)
{
const unsigned char* rowBitmapData = blockBitmapData;
for(int px = 0; px < 4; ++px)
{
unsigned char pixel = *rowBitmapData++;
modulationData = BitUtility::RotateRight(modulationData | MODULATION_LUT[pixel>>4], 2);
}
blockBitmapData += size;
}
packet->modulationData = modulationData;
}
}
}
//============================================================================
typedef Interval<ColorRgb<unsigned char> > ColorRgbBoundingBox;
static void CalculateBoundingBox(ColorRgbBoundingBox& cbb, const RgbBitmap& bitmap, int blockX, int blockY)
{
int size = bitmap.GetBitmapWidth();
const ColorRgb<unsigned char>* data = bitmap.GetData() + blockY * 4 * size + blockX * 4;
cbb.min = data[0];
cbb.max = data[0];
cbb |= data[1];
cbb |= data[2];
cbb |= data[3];
cbb |= data[size];
cbb |= data[size+1];
cbb |= data[size+2];
cbb |= data[size+3];
cbb |= data[2*size];
cbb |= data[2*size+1];
cbb |= data[2*size+2];
cbb |= data[2*size+3];
cbb |= data[3*size];
cbb |= data[3*size+1];
cbb |= data[3*size+2];
cbb |= data[3*size+3];
}
void PvrTcEncoder::EncodeRgb4Bpp(void* result, const RgbBitmap& bitmap)
{
assert(bitmap.GetBitmapWidth() == bitmap.GetBitmapHeight());
assert(BitUtility::IsPowerOf2(bitmap.GetBitmapWidth()));
const int size = bitmap.GetBitmapWidth();
const int blocks = size / 4;
const int blockMask = blocks-1;
PvrTcPacket* packets = static_cast<PvrTcPacket*>(result);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
ColorRgbBoundingBox cbb;
CalculateBoundingBox(cbb, bitmap, x, y);
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->usePunchthroughAlpha = 0;
packet->SetColorA(cbb.min);
packet->SetColorB(cbb.max);
}
}
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
const unsigned char (*factor)[4] = PvrTcPacket::BILINEAR_FACTORS;
const ColorRgb<unsigned char>* data = bitmap.GetData() + y * 4 * size + x * 4;
uint32_t modulationData = 0;
for(int py = 0; py < 4; ++py)
{
const int yOffset = (py < 2) ? -1 : 0;
const int y0 = (y + yOffset) & blockMask;
const int y1 = (y0+1) & blockMask;
for(int px = 0; px < 4; ++px)
{
const int xOffset = (px < 2) ? -1 : 0;
const int x0 = (x + xOffset) & blockMask;
const int x1 = (x0+1) & blockMask;
const PvrTcPacket* p0 = packets + GetMortonNumber(x0, y0);
const PvrTcPacket* p1 = packets + GetMortonNumber(x1, y0);
const PvrTcPacket* p2 = packets + GetMortonNumber(x0, y1);
const PvrTcPacket* p3 = packets + GetMortonNumber(x1, y1);
ColorRgb<int> ca = p0->GetColorRgbA() * (*factor)[0] +
p1->GetColorRgbA() * (*factor)[1] +
p2->GetColorRgbA() * (*factor)[2] +
p3->GetColorRgbA() * (*factor)[3];
ColorRgb<int> cb = p0->GetColorRgbB() * (*factor)[0] +
p1->GetColorRgbB() * (*factor)[1] +
p2->GetColorRgbB() * (*factor)[2] +
p3->GetColorRgbB() * (*factor)[3];
const ColorRgb<unsigned char>& pixel = data[py*size + px];
ColorRgb<int> d = cb - ca;
ColorRgb<int> p;
p.r=pixel.r*16;
p.g=pixel.g*16;
p.b=pixel.b*16;
ColorRgb<int> v = p - ca;
// PVRTC uses weightings of 0, 3/8, 5/8 and 1
// The boundaries for these are 3/16, 1/2 (=8/16), 13/16
int projection = (v % d) * 16;
int lengthSquared = d % d;
if(projection > 3*lengthSquared) modulationData++;
if(projection > 8*lengthSquared) modulationData++;
if(projection > 13*lengthSquared) modulationData++;
modulationData = BitUtility::RotateRight(modulationData, 2);
factor++;
}
}
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->modulationData = modulationData;
}
}
}
//============================================================================
static void CalculateBoundingBox(ColorRgbBoundingBox& cbb, const RgbaBitmap& bitmap, int blockX, int blockY)
{
int size = bitmap.GetBitmapWidth();
const ColorRgba<unsigned char>* data = bitmap.GetData() + blockY * 4 * size + blockX * 4;
cbb.min = data[0];
cbb.max = data[0];
cbb |= data[1];
cbb |= data[2];
cbb |= data[3];
cbb |= data[size];
cbb |= data[size+1];
cbb |= data[size+2];
cbb |= data[size+3];
cbb |= data[2*size];
cbb |= data[2*size+1];
cbb |= data[2*size+2];
cbb |= data[2*size+3];
cbb |= data[3*size];
cbb |= data[3*size+1];
cbb |= data[3*size+2];
cbb |= data[3*size+3];
}
void PvrTcEncoder::EncodeRgb4Bpp(void* result, const RgbaBitmap& bitmap)
{
assert(bitmap.GetBitmapWidth() == bitmap.GetBitmapHeight());
assert(BitUtility::IsPowerOf2(bitmap.GetBitmapWidth()));
const int size = bitmap.GetBitmapWidth();
const int blocks = size / 4;
const int blockMask = blocks-1;
PvrTcPacket* packets = static_cast<PvrTcPacket*>(result);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
ColorRgbBoundingBox cbb;
CalculateBoundingBox(cbb, bitmap, x, y);
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->usePunchthroughAlpha = 0;
packet->SetColorA(cbb.min);
packet->SetColorB(cbb.max);
}
}
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
const unsigned char (*factor)[4] = PvrTcPacket::BILINEAR_FACTORS;
const ColorRgba<unsigned char>* data = bitmap.GetData() + y * 4 * size + x * 4;
uint32_t modulationData = 0;
for(int py = 0; py < 4; ++py)
{
const int yOffset = (py < 2) ? -1 : 0;
const int y0 = (y + yOffset) & blockMask;
const int y1 = (y0+1) & blockMask;
for(int px = 0; px < 4; ++px)
{
const int xOffset = (px < 2) ? -1 : 0;
const int x0 = (x + xOffset) & blockMask;
const int x1 = (x0+1) & blockMask;
const PvrTcPacket* p0 = packets + GetMortonNumber(x0, y0);
const PvrTcPacket* p1 = packets + GetMortonNumber(x1, y0);
const PvrTcPacket* p2 = packets + GetMortonNumber(x0, y1);
const PvrTcPacket* p3 = packets + GetMortonNumber(x1, y1);
ColorRgb<int> ca = p0->GetColorRgbA() * (*factor)[0] +
p1->GetColorRgbA() * (*factor)[1] +
p2->GetColorRgbA() * (*factor)[2] +
p3->GetColorRgbA() * (*factor)[3];
ColorRgb<int> cb = p0->GetColorRgbB() * (*factor)[0] +
p1->GetColorRgbB() * (*factor)[1] +
p2->GetColorRgbB() * (*factor)[2] +
p3->GetColorRgbB() * (*factor)[3];
const ColorRgb<unsigned char>& pixel = data[py*size + px];
ColorRgb<int> d = cb - ca;
ColorRgb<int> p;
p.r=pixel.r*16;
p.g=pixel.g*16;
p.b=pixel.b*16;
ColorRgb<int> v = p - ca;
// PVRTC uses weightings of 0, 3/8, 5/8 and 1
// The boundaries for these are 3/16, 1/2 (=8/16), 13/16
int projection = (v % d) * 16;
int lengthSquared = d % d;
if(projection > 3*lengthSquared) modulationData++;
if(projection > 8*lengthSquared) modulationData++;
if(projection > 13*lengthSquared) modulationData++;
modulationData = BitUtility::RotateRight(modulationData, 2);
factor++;
}
}
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->modulationData = modulationData;
}
}
}
//============================================================================
typedef Interval<ColorRgba<unsigned char> > ColorRgbaBoundingBox;
static void CalculateBoundingBox(ColorRgbaBoundingBox& cbb, const RgbaBitmap& bitmap, int blockX, int blockY)
{
int size = bitmap.GetBitmapWidth();
const ColorRgba<unsigned char>* data = bitmap.GetData() + blockY * 4 * size + blockX * 4;
cbb.min = data[0];
cbb.max = data[0];
cbb |= data[1];
cbb |= data[2];
cbb |= data[3];
cbb |= data[size];
cbb |= data[size+1];
cbb |= data[size+2];
cbb |= data[size+3];
cbb |= data[2*size];
cbb |= data[2*size+1];
cbb |= data[2*size+2];
cbb |= data[2*size+3];
cbb |= data[3*size];
cbb |= data[3*size+1];
cbb |= data[3*size+2];
cbb |= data[3*size+3];
}
void PvrTcEncoder::EncodeRgba4Bpp(void* result, const RgbaBitmap& bitmap)
{
assert(bitmap.GetBitmapWidth() == bitmap.GetBitmapHeight());
assert(BitUtility::IsPowerOf2(bitmap.GetBitmapWidth()));
const int size = bitmap.GetBitmapWidth();
const int blocks = size / 4;
const int blockMask = blocks-1;
PvrTcPacket* packets = static_cast<PvrTcPacket*>(result);
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
ColorRgbaBoundingBox cbb;
CalculateBoundingBox(cbb, bitmap, x, y);
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->usePunchthroughAlpha = 0;
packet->SetColorA(cbb.min);
packet->SetColorB(cbb.max);
}
}
for(int y = 0; y < blocks; ++y)
{
for(int x = 0; x < blocks; ++x)
{
const unsigned char (*factor)[4] = PvrTcPacket::BILINEAR_FACTORS;
const ColorRgba<unsigned char>* data = bitmap.GetData() + y * 4 * size + x * 4;
uint32_t modulationData = 0;
for(int py = 0; py < 4; ++py)
{
const int yOffset = (py < 2) ? -1 : 0;
const int y0 = (y + yOffset) & blockMask;
const int y1 = (y0+1) & blockMask;
for(int px = 0; px < 4; ++px)
{
const int xOffset = (px < 2) ? -1 : 0;
const int x0 = (x + xOffset) & blockMask;
const int x1 = (x0+1) & blockMask;
const PvrTcPacket* p0 = packets + GetMortonNumber(x0, y0);
const PvrTcPacket* p1 = packets + GetMortonNumber(x1, y0);
const PvrTcPacket* p2 = packets + GetMortonNumber(x0, y1);
const PvrTcPacket* p3 = packets + GetMortonNumber(x1, y1);
ColorRgba<int> ca = p0->GetColorRgbaA() * (*factor)[0] +
p1->GetColorRgbaA() * (*factor)[1] +
p2->GetColorRgbaA() * (*factor)[2] +
p3->GetColorRgbaA() * (*factor)[3];
ColorRgba<int> cb = p0->GetColorRgbaB() * (*factor)[0] +
p1->GetColorRgbaB() * (*factor)[1] +
p2->GetColorRgbaB() * (*factor)[2] +
p3->GetColorRgbaB() * (*factor)[3];
const ColorRgba<unsigned char>& pixel = data[py*size + px];
ColorRgba<int> d = cb - ca;
ColorRgba<int> p;
p.r=pixel.r*16;
p.g=pixel.g*16;
p.b=pixel.b*16;
p.a=pixel.a*16;
ColorRgba<int> v = p - ca;
// PVRTC uses weightings of 0, 3/8, 5/8 and 1
// The boundaries for these are 3/16, 1/2 (=8/16), 13/16
int projection = (v % d) * 16;
int lengthSquared = d % d;
if(projection > 3*lengthSquared) modulationData++;
if(projection > 8*lengthSquared) modulationData++;
if(projection > 13*lengthSquared) modulationData++;
modulationData = BitUtility::RotateRight(modulationData, 2);
factor++;
}
}
PvrTcPacket* packet = packets + GetMortonNumber(x, y);
packet->modulationData = modulationData;
}
}
}
//============================================================================

40
drivers/pvr/PvrTcEncoder.h Normal file
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@ -0,0 +1,40 @@
//============================================================================
#pragma once
#include "ColorRgba.h"
//============================================================================
namespace Javelin
{
//============================================================================
class AlphaBitmap;
class RgbBitmap;
class RgbaBitmap;
class PvrTcEncoder
{
public:
// Result must be large enough for bitmap.GetArea()/4 bytes
static void EncodeAlpha2Bpp(void* result, const AlphaBitmap& bitmap);
// Result must be large enough for bitmap.GetArea()/2 bytes
static void EncodeAlpha4Bpp(void* result, const AlphaBitmap& bitmap);
// Result must be large enough for bitmap.GetArea()/2 bytes
static void EncodeRgb4Bpp(void* result, const RgbBitmap& bitmap);
// Result must be large enough for bitmap.GetArea()/2 bytes
static void EncodeRgb4Bpp(void* result, const RgbaBitmap& bitmap);
// Result must be large enough for bitmap.GetArea()/2 bytes
static void EncodeRgba4Bpp(void* result, const RgbaBitmap& bitmap);
private:
static unsigned GetMortonNumber(int x, int y);
};
//============================================================================
}
//============================================================================

209
drivers/pvr/PvrTcPacket.cpp Normal file
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@ -0,0 +1,209 @@
//============================================================================
#include "PvrTcPacket.h"
#include "BitScale.h"
//============================================================================
using namespace Javelin;
//============================================================================
const unsigned char PvrTcPacket::BILINEAR_FACTORS[16][4] =
{
{ 4, 4, 4, 4 },
{ 2, 6, 2, 6 },
{ 8, 0, 8, 0 },
{ 6, 2, 6, 2 },
{ 2, 2, 6, 6 },
{ 1, 3, 3, 9 },
{ 4, 0, 12, 0 },
{ 3, 1, 9, 3 },
{ 8, 8, 0, 0 },
{ 4, 12, 0, 0 },
{ 16, 0, 0, 0 },
{ 12, 4, 0, 0 },
{ 6, 6, 2, 2 },
{ 3, 9, 1, 3 },
{ 12, 0, 4, 0 },
{ 9, 3, 3, 1 },
};
// Weights are { colorA, colorB, alphaA, alphaB }
const unsigned char PvrTcPacket::WEIGHTS[8][4] =
{
// Weights for Mode=0
{ 8, 0, 8, 0 },
{ 5, 3, 5, 3 },
{ 3, 5, 3, 5 },
{ 0, 8, 0, 8 },
// Weights for Mode=1
{ 8, 0, 8, 0 },
{ 4, 4, 4, 4 },
{ 4, 4, 0, 0 },
{ 0, 8, 0, 8 },
};
//============================================================================
ColorRgb<int> PvrTcPacket::GetColorRgbA() const
{
if(colorAIsOpaque)
{
unsigned char r = colorA >> 9;
unsigned char g = colorA >> 4 & 0x1f;
unsigned char b = colorA & 0xf;
return ColorRgb<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_4_TO_8[b]);
}
else
{
unsigned char r = (colorA >> 7) & 0xf;
unsigned char g = (colorA >> 3) & 0xf;
unsigned char b = colorA & 7;
return ColorRgb<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_3_TO_8[b]);
}
}
ColorRgb<int> PvrTcPacket::GetColorRgbB() const
{
if(colorBIsOpaque)
{
unsigned char r = colorB >> 10;
unsigned char g = colorB >> 5 & 0x1f;
unsigned char b = colorB & 0x1f;
return ColorRgb<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_5_TO_8[b]);
}
else
{
unsigned char r = colorB >> 8 & 0xf;
unsigned char g = colorB >> 4 & 0xf;
unsigned char b = colorB & 0xf;
return ColorRgb<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_4_TO_8[b]);
}
}
ColorRgba<int> PvrTcPacket::GetColorRgbaA() const
{
if(colorAIsOpaque)
{
unsigned char r = colorA >> 9;
unsigned char g = colorA >> 4 & 0x1f;
unsigned char b = colorA & 0xf;
return ColorRgba<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_4_TO_8[b],
255);
}
else
{
unsigned char a = colorA >> 11 & 7;
unsigned char r = colorA >> 7 & 0xf;
unsigned char g = colorA >> 3 & 0xf;
unsigned char b = colorA & 7;
return ColorRgba<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_3_TO_8[b],
Data::BITSCALE_3_TO_8[a]);
}
}
ColorRgba<int> PvrTcPacket::GetColorRgbaB() const
{
if(colorBIsOpaque)
{
unsigned char r = colorB >> 10;
unsigned char g = colorB >> 5 & 0x1f;
unsigned char b = colorB & 0x1f;
return ColorRgba<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_5_TO_8[b],
255);
}
else
{
unsigned char a = colorB >> 12 & 7;
unsigned char r = colorB >> 8 & 0xf;
unsigned char g = colorB >> 4 & 0xf;
unsigned char b = colorB & 0xf;
return ColorRgba<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_4_TO_8[b],
Data::BITSCALE_3_TO_8[a]);
}
}
//============================================================================
void PvrTcPacket::SetColorA(const ColorRgb<unsigned char>& c)
{
int r = Data::BITSCALE_8_TO_5_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_5_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_4_FLOOR[c.b];
colorA = r<<9 | g<<4 | b;
colorAIsOpaque = true;
}
void PvrTcPacket::SetColorB(const ColorRgb<unsigned char>& c)
{
int r = Data::BITSCALE_8_TO_5_CEIL[c.r];
int g = Data::BITSCALE_8_TO_5_CEIL[c.g];
int b = Data::BITSCALE_8_TO_5_CEIL[c.b];
colorB = r<<10 | g<<5 | b;
colorBIsOpaque = true;
}
void PvrTcPacket::SetColorA(const ColorRgba<unsigned char>& c)
{
int a = Data::BITSCALE_8_TO_3_FLOOR[c.a];
if(a == 7)
{
int r = Data::BITSCALE_8_TO_5_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_5_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_4_FLOOR[c.b];
colorA = r<<9 | g<<4 | b;
colorAIsOpaque = true;
}
else
{
int r = Data::BITSCALE_8_TO_4_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_4_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_3_FLOOR[c.b];
colorA = a<<11 | r<<7 | g<<3 | b;
colorAIsOpaque = false;
}
}
void PvrTcPacket::SetColorB(const ColorRgba<unsigned char>& c)
{
int a = Data::BITSCALE_8_TO_3_CEIL[c.a];
if(a == 7)
{
int r = Data::BITSCALE_8_TO_5_CEIL[c.r];
int g = Data::BITSCALE_8_TO_5_CEIL[c.g];
int b = Data::BITSCALE_8_TO_5_CEIL[c.b];
colorB = r<<10 | g<<5 | b;
colorBIsOpaque = true;
}
else
{
int r = Data::BITSCALE_8_TO_4_CEIL[c.r];
int g = Data::BITSCALE_8_TO_4_CEIL[c.g];
int b = Data::BITSCALE_8_TO_4_CEIL[c.b];
colorB = a<<12 | r<<8 | g<<4 | b;
colorBIsOpaque = false;
}
}
//============================================================================

65
drivers/pvr/PvrTcPacket.h Normal file
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@ -0,0 +1,65 @@
//============================================================================
//
// Modulation data specifies weightings of colorA to colorB for each pixel
//
// For mode = 0
// 00: 0/8
// 01: 3/8
// 10: 5/8
// 11: 8/8
//
// For mode = 1
// 00: 0/8
// 01: 4/8
// 10: 4/8 with alpha punchthrough
// 11: 8/8
//
// For colorIsOpaque=0
// 3 bits A
// 4 bits R
// 4 bits G
// 3/4 bits B
//
// For colorIsOpaque=1
// 5 bits R
// 5 bits G
// 4/5 bits B
//
//============================================================================
#pragma once
#include "ColorRgba.h"
//============================================================================
namespace Javelin
{
//============================================================================
struct PvrTcPacket
{
unsigned int modulationData;
unsigned usePunchthroughAlpha : 1;
unsigned colorA : 14;
unsigned colorAIsOpaque : 1;
unsigned colorB : 15;
unsigned colorBIsOpaque : 1;
ColorRgb<int> GetColorRgbA() const;
ColorRgb<int> GetColorRgbB() const;
ColorRgba<int> GetColorRgbaA() const;
ColorRgba<int> GetColorRgbaB() const;
void SetColorA(const ColorRgb<unsigned char>& c);
void SetColorB(const ColorRgb<unsigned char>& c);
void SetColorA(const ColorRgba<unsigned char>& c);
void SetColorB(const ColorRgba<unsigned char>& c);
static const unsigned char BILINEAR_FACTORS[16][4];
static const unsigned char WEIGHTS[8][4];
};
//============================================================================
} // namespace Javelin
//============================================================================

23
drivers/pvr/RgbBitmap.h Normal file
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@ -0,0 +1,23 @@
#pragma once
#include "Bitmap.h"
#include "ColorRgba.h"
namespace Javelin {
class RgbBitmap : public Bitmap {
public:
RgbBitmap(int w, int h)
: Bitmap(w, h, 3) {
}
const ColorRgb<unsigned char> *GetData() const {
return reinterpret_cast<ColorRgb<unsigned char> *>(data);
}
ColorRgb<unsigned char> *GetData() {
return reinterpret_cast<ColorRgb<unsigned char> *>(data);
}
};
}

23
drivers/pvr/RgbaBitmap.h Normal file
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@ -0,0 +1,23 @@
#pragma once
#include "ColorRgba.h"
#include "Bitmap.h"
namespace Javelin {
class RgbaBitmap : public Bitmap {
public:
RgbaBitmap(int w, int h)
: Bitmap(w, h, 4) {
}
const ColorRgba<unsigned char> *GetData() const {
return reinterpret_cast<ColorRgba<unsigned char> *>(data);
}
ColorRgba<unsigned char> *GetData() {
return reinterpret_cast<ColorRgba<unsigned char> *>(data);
}
};
}

6
drivers/pvr/SCsub
View file

@ -2,10 +2,14 @@ Import('env')
pvr_sources = [
"pvr/BitScale.cpp",
"pvr/MortonTable.cpp",
"pvr/PvrTcDecoder.cpp",
"pvr/PvrTcEncoder.cpp",
"pvr/PvrTcPacket.cpp",
"pvr/texture_loader_pvr.cpp"
]
env.drivers_sources+=pvr_sources
#env.add_source_files(env.drivers_sources, pvr_sources)

51
drivers/pvr/texture_loader_pvr.cpp
View file

@ -1,6 +1,8 @@
#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);
@ -154,10 +156,59 @@ String ResourceFormatPVR::get_resource_type(const String &p_path) const {
}
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;
}

28
tools/editor/pvrtc_compress.cpp
View file

@ -32,11 +32,34 @@
#include "io/resource_saver.h"
#include "io/resource_loader.h"
#include "os/os.h"
#include "os/file_access.h"
static void (*_base_image_compress_pvrtc2_func)(Image *)=NULL;
static void (*_base_image_compress_pvrtc4_func)(Image *)=NULL;
static void _compress_image(Image::CompressMode p_mode,Image *p_image) {
String ttpath = EditorSettings::get_singleton()->get("PVRTC/texture_tool");
if (ttpath.strip_edges()=="" || !FileAccess::exists(ttpath)) {
switch(p_mode) {
case Image::COMPRESS_PVRTC2:
if (_base_image_compress_pvrtc2_func)
_base_image_compress_pvrtc2_func(p_image);
else if (_base_image_compress_pvrtc4_func)
_base_image_compress_pvrtc4_func(p_image);
break;
case Image::COMPRESS_PVRTC4:
if (_base_image_compress_pvrtc4_func)
_base_image_compress_pvrtc4_func(p_image);
break;
default: ERR_FAIL();
}
return;
}
String spath = EditorSettings::get_singleton()->get_settings_path();
@ -100,6 +123,9 @@ static void _compress_etc(Image *p_image) {
void _pvrtc_register_compressors() {
_base_image_compress_pvrtc2_func=Image::_image_compress_pvrtc2_func;
_base_image_compress_pvrtc4_func=Image::_image_compress_pvrtc4_func;
Image::_image_compress_pvrtc2_func=_compress_pvrtc2;
Image::_image_compress_pvrtc4_func=_compress_pvrtc4;
//Image::_image_compress_etc_func=_compress_etc; //use the built in one for ETC