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-rw-r--r--drivers/pvr/AlphaBitmap.h18
-rw-r--r--drivers/pvr/BitScale.cpp184
-rw-r--r--drivers/pvr/BitScale.h28
-rw-r--r--drivers/pvr/BitUtility.h19
-rw-r--r--drivers/pvr/Bitmap.h34
-rw-r--r--drivers/pvr/ColorRgba.h152
-rw-r--r--drivers/pvr/Interval.h21
-rw-r--r--drivers/pvr/MortonTable.cpp43
-rw-r--r--drivers/pvr/MortonTable.h18
-rw-r--r--drivers/pvr/Point2.h17
-rw-r--r--drivers/pvr/PvrTcDecoder.cpp144
-rw-r--r--drivers/pvr/PvrTcDecoder.h25
-rw-r--r--drivers/pvr/PvrTcEncoder.cpp474
-rw-r--r--drivers/pvr/PvrTcEncoder.h40
-rw-r--r--drivers/pvr/PvrTcPacket.cpp209
-rw-r--r--drivers/pvr/PvrTcPacket.h65
-rw-r--r--drivers/pvr/RgbBitmap.h23
-rw-r--r--drivers/pvr/RgbaBitmap.h23
-rw-r--r--drivers/pvr/SCsub6
-rw-r--r--drivers/pvr/texture_loader_pvr.cpp51
20 files changed, 1593 insertions, 1 deletions
diff --git a/drivers/pvr/AlphaBitmap.h b/drivers/pvr/AlphaBitmap.h
new file mode 100644
index 0000000000..57c6b026ea
--- /dev/null
+++ b/drivers/pvr/AlphaBitmap.h
@@ -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; }
+};
+
+}
diff --git a/drivers/pvr/BitScale.cpp b/drivers/pvr/BitScale.cpp
new file mode 100644
index 0000000000..97b3f0aa25
--- /dev/null
+++ b/drivers/pvr/BitScale.cpp
@@ -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};
+
diff --git a/drivers/pvr/BitScale.h b/drivers/pvr/BitScale.h
new file mode 100644
index 0000000000..36613aeeee
--- /dev/null
+++ b/drivers/pvr/BitScale.h
@@ -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
+//============================================================================
diff --git a/drivers/pvr/BitUtility.h b/drivers/pvr/BitUtility.h
new file mode 100644
index 0000000000..588ff3e892
--- /dev/null
+++ b/drivers/pvr/BitUtility.h
@@ -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));
+ }
+};
+
+}
diff --git a/drivers/pvr/Bitmap.h b/drivers/pvr/Bitmap.h
new file mode 100644
index 0000000000..508ed8cb75
--- /dev/null
+++ b/drivers/pvr/Bitmap.h
@@ -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; }
+};
+
+}
diff --git a/drivers/pvr/ColorRgba.h b/drivers/pvr/ColorRgba.h
new file mode 100644
index 0000000000..0701420566
--- /dev/null
+++ b/drivers/pvr/ColorRgba.h
@@ -0,0 +1,152 @@
+#pragma once
+
+namespace Javelin {
+
+template<typename T>
+class ColorRgb {
+public:
+ T b;
+ T g;
+ T r;
+
+
+ ColorRgb()
+ : b(0)
+ , g(0)
+ , r(0) {
+ }
+
+ ColorRgb(T red, T green, T blue)
+ : b(blue)
+ , g(green)
+ , r(red) {
+ }
+
+ ColorRgb(const ColorRgb<T> &x)
+ : b(x.b)
+ , g(x.g)
+ , r(x.r) {
+ }
+
+ 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;
+ }
+ }
+};
+
+}
diff --git a/drivers/pvr/Interval.h b/drivers/pvr/Interval.h
new file mode 100644
index 0000000000..a7252e8375
--- /dev/null
+++ b/drivers/pvr/Interval.h
@@ -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;
+ }
+};
+
+}
diff --git a/drivers/pvr/MortonTable.cpp b/drivers/pvr/MortonTable.cpp
new file mode 100644
index 0000000000..29a5af67f6
--- /dev/null
+++ b/drivers/pvr/MortonTable.cpp
@@ -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
+};
+
+//============================================================================
diff --git a/drivers/pvr/MortonTable.h b/drivers/pvr/MortonTable.h
new file mode 100644
index 0000000000..7a27e59544
--- /dev/null
+++ b/drivers/pvr/MortonTable.h
@@ -0,0 +1,18 @@
+//============================================================================
+
+#pragma once
+
+//============================================================================
+
+namespace Javelin
+{
+ namespace Data
+ {
+//============================================================================
+
+ extern const unsigned short MORTON_TABLE[256];
+
+//============================================================================
+ } // namespace Data
+} // namespace Javelin
+//============================================================================
diff --git a/drivers/pvr/Point2.h b/drivers/pvr/Point2.h
new file mode 100644
index 0000000000..89fa4b6322
--- /dev/null
+++ b/drivers/pvr/Point2.h
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace Javelin {
+
+template<typename T>
+class Point2 {
+public:
+ T x;
+ T y;
+
+ Point2(int a, int b)
+ : x(a)
+ , y(b) {
+ }
+};
+
+}
diff --git a/drivers/pvr/PvrTcDecoder.cpp b/drivers/pvr/PvrTcDecoder.cpp
new file mode 100644
index 0000000000..d8a36b342c
--- /dev/null
+++ b/drivers/pvr/PvrTcDecoder.cpp
@@ -0,0 +1,144 @@
+//============================================================================
+
+#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++;
+ }
+ }
+ }
+ }
+}
+
+//============================================================================
diff --git a/drivers/pvr/PvrTcDecoder.h b/drivers/pvr/PvrTcDecoder.h
new file mode 100644
index 0000000000..1b6fcf964c
--- /dev/null
+++ b/drivers/pvr/PvrTcDecoder.h
@@ -0,0 +1,25 @@
+//============================================================================
+
+#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);
+ };
+
+//============================================================================
+}
+//============================================================================
diff --git a/drivers/pvr/PvrTcEncoder.cpp b/drivers/pvr/PvrTcEncoder.cpp
new file mode 100644
index 0000000000..587b1320f1
--- /dev/null
+++ b/drivers/pvr/PvrTcEncoder.cpp
@@ -0,0 +1,474 @@
+//============================================================================
+
+#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;
+ }
+ }
+}
+
+//============================================================================
diff --git a/drivers/pvr/PvrTcEncoder.h b/drivers/pvr/PvrTcEncoder.h
new file mode 100644
index 0000000000..b9344367d9
--- /dev/null
+++ b/drivers/pvr/PvrTcEncoder.h
@@ -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);
+ };
+
+//============================================================================
+}
+//============================================================================
diff --git a/drivers/pvr/PvrTcPacket.cpp b/drivers/pvr/PvrTcPacket.cpp
new file mode 100644
index 0000000000..2e40d371e8
--- /dev/null
+++ b/drivers/pvr/PvrTcPacket.cpp
@@ -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;
+ }
+}
+
+//============================================================================
diff --git a/drivers/pvr/PvrTcPacket.h b/drivers/pvr/PvrTcPacket.h
new file mode 100644
index 0000000000..ac3b6a4dd1
--- /dev/null
+++ b/drivers/pvr/PvrTcPacket.h
@@ -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
+//============================================================================
diff --git a/drivers/pvr/RgbBitmap.h b/drivers/pvr/RgbBitmap.h
new file mode 100644
index 0000000000..cf1d78667d
--- /dev/null
+++ b/drivers/pvr/RgbBitmap.h
@@ -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);
+ }
+};
+
+}
diff --git a/drivers/pvr/RgbaBitmap.h b/drivers/pvr/RgbaBitmap.h
new file mode 100644
index 0000000000..66b5542c1a
--- /dev/null
+++ b/drivers/pvr/RgbaBitmap.h
@@ -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);
+ }
+};
+
+}
diff --git a/drivers/pvr/SCsub b/drivers/pvr/SCsub
index bd4c6f3f88..44b8c3d6bb 100644
--- a/drivers/pvr/SCsub
+++ b/drivers/pvr/SCsub
@@ -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)
-
diff --git a/drivers/pvr/texture_loader_pvr.cpp b/drivers/pvr/texture_loader_pvr.cpp
index b12e0c28b8..5268b953f4 100644
--- a/drivers/pvr/texture_loader_pvr.cpp
+++ b/drivers/pvr/texture_loader_pvr.cpp
@@ -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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 09:19:13 +0000