diff options
Diffstat (limited to 'thirdparty/pvrtccompressor/PvrTcDecoder.cpp')
| -rw-r--r-- | thirdparty/pvrtccompressor/PvrTcDecoder.cpp | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/thirdparty/pvrtccompressor/PvrTcDecoder.cpp b/thirdparty/pvrtccompressor/PvrTcDecoder.cpp deleted file mode 100644 index d8a36b342c..0000000000 --- a/thirdparty/pvrtccompressor/PvrTcDecoder.cpp +++ /dev/null @@ -1,144 +0,0 @@ -//============================================================================ - -#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++; - } - } - } - } -} - -//============================================================================ |