mirror of
https://github.com/yuzu-emu/FasTC
synced 2024-11-23 13:03:36 +00:00
250 lines
6.9 KiB
C++
250 lines
6.9 KiB
C++
/* FasTC
|
|
* Copyright (c) 2013 University of North Carolina at Chapel Hill.
|
|
* All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation for educational, research, and non-profit purposes, without
|
|
* fee, and without a written agreement is hereby granted, provided that the
|
|
* above copyright notice, this paragraph, and the following four paragraphs
|
|
* appear in all copies.
|
|
*
|
|
* Permission to incorporate this software into commercial products may be
|
|
* obtained by contacting the authors or the Office of Technology Development
|
|
* at the University of North Carolina at Chapel Hill <otd@unc.edu>.
|
|
*
|
|
* This software program and documentation are copyrighted by the University of
|
|
* North Carolina at Chapel Hill. The software program and documentation are
|
|
* supplied "as is," without any accompanying services from the University of
|
|
* North Carolina at Chapel Hill or the authors. The University of North
|
|
* Carolina at Chapel Hill and the authors do not warrant that the operation of
|
|
* the program will be uninterrupted or error-free. The end-user understands
|
|
* that the program was developed for research purposes and is advised not to
|
|
* rely exclusively on the program for any reason.
|
|
*
|
|
* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
|
|
* AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
|
|
* OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF
|
|
* THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA
|
|
* AT CHAPEL HILL OR THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS SPECIFICALLY
|
|
* DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY
|
|
* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON
|
|
* AN "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND
|
|
* THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
|
|
* ENHANCEMENTS, OR MODIFICATIONS.
|
|
*
|
|
* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
|
|
*
|
|
* The authors may be contacted via:
|
|
*
|
|
* Pavel Krajcevski
|
|
* Dept of Computer Science
|
|
* 201 S Columbia St
|
|
* Frederick P. Brooks, Jr. Computer Science Bldg
|
|
* Chapel Hill, NC 27599-3175
|
|
* USA
|
|
*
|
|
* <http://gamma.cs.unc.edu/FasTC/>
|
|
*/
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "Pixel.h"
|
|
|
|
TEST(Pixel, DefaultConstructor) {
|
|
PVRTCC::Pixel p;
|
|
EXPECT_EQ(p.R(), 0);
|
|
EXPECT_EQ(p.G(), 0);
|
|
EXPECT_EQ(p.B(), 0);
|
|
EXPECT_EQ(p.A(), 0);
|
|
|
|
uint8 depth[4];
|
|
p.GetBitDepth(depth);
|
|
|
|
for(int i = 0; i < 4; i++) {
|
|
EXPECT_EQ(depth[i], 8);
|
|
}
|
|
}
|
|
|
|
TEST(Pixel, FromBitsAndAssociatedConstructor) {
|
|
const uint8 bits[8] = { 0xA8, 0xB3, 0x7C, 0x21, 0xBD, 0xD4, 0x09, 0x92 };
|
|
PVRTCC::Pixel ps[2];
|
|
ps[0] = PVRTCC::Pixel(bits);
|
|
ps[1].FromBits(bits);
|
|
|
|
for(int i = 0; i < 2; i++) {
|
|
PVRTCC::Pixel &p = ps[i];
|
|
|
|
EXPECT_EQ(p.A(), 0xA8);
|
|
EXPECT_EQ(p.R(), 0xB3);
|
|
EXPECT_EQ(p.G(), 0x7C);
|
|
EXPECT_EQ(p.B(), 0x21);
|
|
|
|
uint8 depth[4];
|
|
p.GetBitDepth(depth);
|
|
for(int j = 0; j < 4; j++) {
|
|
EXPECT_EQ(depth[j], 8);
|
|
}
|
|
}
|
|
|
|
const uint8 depth1[4] = { 3, 2, 0, 8 };
|
|
ps[0] = PVRTCC::Pixel(bits + 3, depth1);
|
|
ps[1].FromBits(bits + 3, depth1);
|
|
|
|
for(int i = 0; i < 2; i++) {
|
|
PVRTCC::Pixel &p = ps[i];
|
|
|
|
EXPECT_EQ(p.A(), 0x01);
|
|
EXPECT_EQ(p.R(), 0x00);
|
|
EXPECT_EQ(p.G(), 0xFF);
|
|
EXPECT_EQ(p.B(), 0x37);
|
|
|
|
uint8 depth[4];
|
|
p.GetBitDepth(depth);
|
|
|
|
EXPECT_EQ(depth[0], 3);
|
|
EXPECT_EQ(depth[1], 2);
|
|
EXPECT_EQ(depth[2], 0);
|
|
EXPECT_EQ(depth[3], 8);
|
|
}
|
|
|
|
|
|
const uint8 depth2[4] = { 5, 6, 2, 4 };
|
|
ps[0] = PVRTCC::Pixel(bits + 4, depth2, 2);
|
|
ps[1].FromBits(bits + 4, depth2, 2);
|
|
|
|
for(int i = 0; i < 2; i++) {
|
|
PVRTCC::Pixel &p = ps[i];
|
|
|
|
EXPECT_EQ(p.A(), 0x1E);
|
|
EXPECT_EQ(p.R(), 0x3A);
|
|
EXPECT_EQ(p.G(), 0x02);
|
|
EXPECT_EQ(p.B(), 0x00);
|
|
|
|
uint8 depth[4];
|
|
p.GetBitDepth(depth);
|
|
|
|
EXPECT_EQ(depth[0], 5);
|
|
EXPECT_EQ(depth[1], 6);
|
|
EXPECT_EQ(depth[2], 2);
|
|
EXPECT_EQ(depth[3], 4);
|
|
}
|
|
}
|
|
|
|
TEST(Pixel, ToBits) {
|
|
PVRTCC::Pixel p;
|
|
|
|
uint8 bitDepth[4] = { 2, 8, 1, 7 };
|
|
p.ChangeBitDepth(bitDepth);
|
|
|
|
p.A() = 0x2;
|
|
p.R() = 0x56;
|
|
p.G() = 0;
|
|
p.B() = 0x4F;
|
|
|
|
uint8 bits[3];
|
|
memset(bits, 0, sizeof(bits));
|
|
p.ToBits(bits, sizeof(bits));
|
|
|
|
EXPECT_EQ(bits[0], 0x4F);
|
|
EXPECT_EQ(bits[1], 0x56);
|
|
EXPECT_EQ(bits[2], 0x2);
|
|
|
|
memset(bits, 0, sizeof(bits));
|
|
p.ToBits(bits, 3, 2);
|
|
EXPECT_EQ(bits[0], 0x3C);
|
|
EXPECT_EQ(bits[1], 0x59);
|
|
EXPECT_EQ(bits[2], 0x09);
|
|
}
|
|
|
|
TEST(Pixel, ChangeChannelBitDepth) {
|
|
uint8 val = 0x43;
|
|
uint8 depth = 7;
|
|
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 8), 0x87);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 7), 0x43);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 6), 0x22);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 2), 0x2);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 0), 0xFF);
|
|
|
|
val = 0x3;
|
|
depth = 3;
|
|
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 8), 0x6D);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 6), 0x1B);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 3), 0x03);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 2), 0x02);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 0), 0xFF);
|
|
}
|
|
|
|
TEST(Pixel, ChangeChannelBitDepthFromZero) {
|
|
uint8 val = 0x43;
|
|
uint8 depth = 0;
|
|
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 8), 0xFF);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 7), 0x7F);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 6), 0x3F);
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 2), 0x03);
|
|
|
|
// Shouldn't change it...
|
|
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 0), 0x43);
|
|
}
|
|
|
|
TEST(Pixel, ChangePixelBitDepth) {
|
|
const uint8 bits[4] = { 0x86, 0xC0, 0x0, 0x0 };
|
|
const uint8 depth[4] = {7, 3, 0, 0};
|
|
PVRTCC::Pixel p(bits, depth);
|
|
|
|
const uint8 newDepth[4] = { 8, 8, 8, 8 };
|
|
p.ChangeBitDepth(newDepth);
|
|
|
|
EXPECT_EQ(p.A(), 0x87);
|
|
EXPECT_EQ(p.R(), 0x6D);
|
|
EXPECT_EQ(p.G(), 0xFF);
|
|
EXPECT_EQ(p.B(), 0xFF);
|
|
|
|
uint8 outDepth[4];
|
|
p.GetBitDepth(outDepth);
|
|
|
|
for(uint32 i = 0; i < 4; i++) {
|
|
EXPECT_EQ(outDepth[i], 8);
|
|
}
|
|
}
|
|
|
|
TEST(Pixel, PackRGBA) {
|
|
const uint8 bits[4] = { 0x86, 0xC0, 0x0, 0x0 };
|
|
const uint8 depth[4] = {7, 3, 0, 0};
|
|
PVRTCC::Pixel p(bits, depth);
|
|
|
|
uint32 val = p.PackRGBA();
|
|
EXPECT_EQ(val, 0x87FFFF6D);
|
|
}
|
|
|
|
TEST(Pixel, UnpackRGBA) {
|
|
uint32 rgba = 0x4619B3FE;
|
|
PVRTCC::Pixel p;
|
|
|
|
p.UnpackRGBA(rgba);
|
|
EXPECT_EQ(p.A(), 0x46);
|
|
EXPECT_EQ(p.B(), 0x19);
|
|
EXPECT_EQ(p.G(), 0xB3);
|
|
EXPECT_EQ(p.R(), 0xFE);
|
|
|
|
p = PVRTCC::Pixel(rgba);
|
|
EXPECT_EQ(p.A(), 0x46);
|
|
EXPECT_EQ(p.B(), 0x19);
|
|
EXPECT_EQ(p.G(), 0xB3);
|
|
EXPECT_EQ(p.R(), 0xFE);
|
|
|
|
p = PVRTCC::Pixel();
|
|
uint8 newBitDepth[4] = { 3, 5, 2, 1 }; // A R G B
|
|
p.ChangeBitDepth(newBitDepth);
|
|
p.UnpackRGBA(rgba);
|
|
|
|
EXPECT_EQ(p.A(), 0x2);
|
|
EXPECT_EQ(p.B(), 0x0);
|
|
EXPECT_EQ(p.G(), 0x3);
|
|
EXPECT_EQ(p.R(), 0x1f);
|
|
}
|