mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2025-01-11 19:39:09 +01:00
* Added a space in defines.h for entropy's name
* Starting to update FreetypeGX ( Metaphrasis is not more needed )
This commit is contained in:
fedeanto11
parent
39f7818869
commit
08cfe6c95e
@ -271,47 +271,35 @@ uint16_t FreeTypeGX::cacheGlyphDataComplete() {
|
||||
*
|
||||
* @param bmp A pointer to the most recently rendered glyph's bitmap.
|
||||
* @param charData A pointer to an allocated ftgxCharData structure whose data represent that of the last rendered glyph.
|
||||
*
|
||||
* Optimized for RGBA8 use by Dimok.
|
||||
*/
|
||||
void FreeTypeGX::loadGlyphData(FT_Bitmap *bmp, ftgxCharData *charData) {
|
||||
void FreeTypeGX::loadGlyphData(FT_Bitmap *bmp, ftgxCharData *charData)
|
||||
{
|
||||
int length = charData->textureWidth * charData->textureHeight * 4;
|
||||
|
||||
uint32_t *glyphData = (uint32_t *)MEM2_alloc(charData->textureWidth * charData->textureHeight * 4);
|
||||
if (glyphData == 0)
|
||||
return;
|
||||
memset(glyphData, 0x00, charData->textureWidth * charData->textureHeight * 4);
|
||||
uint8_t * glyphData = (uint8_t *) MEM2_alloc(length);
|
||||
if(!glyphData) return;
|
||||
|
||||
for (uint16_t imagePosY = 0; imagePosY < bmp->rows; imagePosY++) {
|
||||
for (uint16_t imagePosX = 0; imagePosX < bmp->width; imagePosX++) {
|
||||
uint32_t pixel = (uint32_t) bmp->buffer[imagePosY * bmp->width + imagePosX];
|
||||
glyphData[imagePosY * charData->textureWidth + imagePosX] = 0x00000000 | (pixel << 24) | (pixel << 16) | (pixel << 8) | pixel;
|
||||
memset(glyphData, 0x00, length);
|
||||
|
||||
uint8_t *src = (uint8_t *)bmp->buffer;
|
||||
uint32_t offset;
|
||||
|
||||
for (int imagePosY = 0; imagePosY < bmp->rows; ++imagePosY)
|
||||
{
|
||||
for (int imagePosX = 0; imagePosX < bmp->width; ++imagePosX)
|
||||
{
|
||||
offset = ((((imagePosY >> 2) * (charData->textureWidth >> 2) + (imagePosX >> 2)) << 5) + ((imagePosY & 3) << 2) + (imagePosX & 3)) << 1;
|
||||
glyphData[offset] = *src;
|
||||
glyphData[offset+1] = *src;
|
||||
glyphData[offset+32] = *src;
|
||||
glyphData[offset+33] = *src;
|
||||
++src;
|
||||
}
|
||||
}
|
||||
|
||||
switch(this->textureFormat) {
|
||||
case GX_TF_I4:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToI4(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_I8:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToI8(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_IA4:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToIA4(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_IA8:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToIA8(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_RGB565:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToRGB565(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_RGB5A3:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToRGB5A3(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
case GX_TF_RGBA8:
|
||||
default:
|
||||
charData->glyphDataTexture = Metaphrasis::convertBufferToRGBA8(glyphData, charData->textureWidth, charData->textureHeight);
|
||||
break;
|
||||
}
|
||||
|
||||
SAFE_FREE(glyphData);
|
||||
DCFlushRange(glyphData, length);
|
||||
charData->glyphDataTexture = (uint32_t *) glyphData;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -155,7 +155,6 @@
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
#include FT_BITMAP_H
|
||||
#include "Metaphrasis.h"
|
||||
#include "utils.h"
|
||||
|
||||
#include <malloc.h>
|
||||
|
||||
@ -1,404 +0,0 @@
|
||||
/*
|
||||
* Metaphrasis is a static conversion class for transforming RGBA image
|
||||
* buffers into verious GX texture formats for Wii homebrew development.
|
||||
* Copyright (C) 2008 Armin Tamzarian
|
||||
*
|
||||
* This file is part of Metaphrasis.
|
||||
*
|
||||
* Metaphrasis is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* Metaphrasis is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with Metaphrasis. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include "Metaphrasis.h"
|
||||
#include "mem2.hpp"
|
||||
|
||||
/**
|
||||
* Default constructor for the Metaphrasis class.
|
||||
*/
|
||||
|
||||
Metaphrasis::Metaphrasis() {
|
||||
}
|
||||
|
||||
/**
|
||||
* Default destructor for the Metaphrasis class.
|
||||
*/
|
||||
|
||||
Metaphrasis::~Metaphrasis() {
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the I4 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the I4 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToI4(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = bufferWidth * bufferHeight >> 1;
|
||||
uint32_t* dataBufferI4 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferI4, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint8_t *dst = (uint8_t *)dataBufferI4;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 8) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 8) {
|
||||
for(uint16_t rows = 0; rows < 8; rows++) {
|
||||
*dst++ = (src[((y + rows) * bufferWidth) + (x + 0)] & 0xf0) | ((src[((y + rows) * bufferWidth) + (x + 1)] & 0xf0) >> 4);
|
||||
*dst++ = (src[((y + rows) * bufferWidth) + (x + 2)] & 0xf0) | ((src[((y + rows) * bufferWidth) + (x + 3)] & 0xf0) >> 4);
|
||||
*dst++ = (src[((y + rows) * bufferWidth) + (x + 4)] & 0xf0) | ((src[((y + rows) * bufferWidth) + (x + 5)] & 0xf0) >> 4);
|
||||
*dst++ = (src[((y + rows) * bufferWidth) + (x + 6)] & 0xf0) | ((src[((y + rows) * bufferWidth) + (x + 7)] & 0xf0) >> 4);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferI4, bufferSize);
|
||||
|
||||
return dataBufferI4;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the I8 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the I8 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToI8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = bufferWidth * bufferHeight;
|
||||
uint32_t* dataBufferI8 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferI8, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint8_t *dst = (uint8_t *)dataBufferI8;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 4) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 8) {
|
||||
for(uint16_t rows = 0; rows < 4; rows++) {
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 0)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 1)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 2)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 3)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 4)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 5)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 6)] & 0xff;
|
||||
*dst++ = src[((y + rows) * bufferWidth) + (x + 7)] & 0xff;
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferI8, bufferSize);
|
||||
|
||||
return dataBufferI8;
|
||||
}
|
||||
|
||||
/**
|
||||
* Downsample the specified RGBA value data buffer to an IA4 value.
|
||||
*
|
||||
* This routine downsamples the given RGBA data value into the IA4 texture data format.
|
||||
*
|
||||
* <strong>Format Explanation</strong>
|
||||
* \n
|
||||
* IA4 is a greyscale color format with a 4 bit Alpha component. In order to convert from the given RGBA color format simply concatenate
|
||||
* the first 4 MSB from any color component (in this case the Blue component to decrease the number of place shifts performed) to
|
||||
* the first 4 MSB from the Alpha component.
|
||||
* \n\n
|
||||
* <code>
|
||||
* RGBA (32bit): r7r6r5r4r3r2r1r0|g7g6g5g4g3g2g1g0|b7b6b5b4b3b2b1b|0a7a6a5a4a3a2a1a0
|
||||
* \n
|
||||
* RGBIA4 (8bit): b7b6b5b4a7a6a5a4
|
||||
* </code>
|
||||
*
|
||||
* @param rgba A 32-bit RGBA value to convert to the IA4 format.
|
||||
* @return The IA4 value of the given RGBA value.
|
||||
*/
|
||||
|
||||
uint8_t Metaphrasis::convertRGBAToIA4(uint32_t rgba) {
|
||||
return RGBA_TO_IA4(rgba);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the IA4 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the IA4 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToIA4(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = bufferWidth * bufferHeight;
|
||||
uint32_t* dataBufferIA4 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferIA4, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint8_t *dst = (uint8_t *)dataBufferIA4;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 4) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 8) {
|
||||
for(uint16_t rows = 0; rows < 4; rows++) {
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 0)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 1)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 2)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 3)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 4)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 5)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 6)]);
|
||||
*dst++ = RGBA_TO_IA4(src[((y + rows) * bufferWidth) + (x + 7)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferIA4, bufferSize);
|
||||
|
||||
return dataBufferIA4;
|
||||
}
|
||||
|
||||
/**
|
||||
* Downsample the specified RGBA value data buffer to an IA8 value.
|
||||
*
|
||||
* This routine downsamples the given RGBA data value into the IA8 texture data format.
|
||||
*
|
||||
* <strong>Format Explanation</strong>
|
||||
* \n
|
||||
* IA8 is a greyscale color format with a full 8 bit Alpha component. In order to convert from the given RGBA color format simply concatenate
|
||||
* the entire 8 bit information from any color component (in this case the Blue component to decrease the number of place shifts performed) to
|
||||
* the entire 8 bit Alpha component.
|
||||
* \n\n
|
||||
* <code>
|
||||
* RGBA (32bit): r7r6r5r4r3r2r1r0|g7g6g5g4g3g2g1g0|b7b6b5b4b3b2b1b|0a7a6a5a4a3a2a1a0
|
||||
* \n
|
||||
* RGBIA8 (16bit): b7b6b5b4b3b2b1b0|a7a6a5a4a3a2a1a0
|
||||
* </code>
|
||||
*
|
||||
* @param rgba A 32-bit RGBA value to convert to the IA8 format.
|
||||
* @return The IA8 value of the given RGBA value.
|
||||
*/
|
||||
|
||||
uint16_t Metaphrasis::convertRGBAToIA8(uint32_t rgba) {
|
||||
|
||||
return RGBA_TO_IA8(rgba);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the IA8 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the IA8 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToIA8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = (bufferWidth * bufferHeight) << 1;
|
||||
uint32_t* dataBufferIA8 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferIA8, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint16_t *dst = (uint16_t *)dataBufferIA8;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 4) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 4) {
|
||||
for(uint16_t rows = 0; rows < 4; rows++) {
|
||||
*dst++ = RGBA_TO_IA8(src[((y + rows) * bufferWidth) + (x + 0)]);
|
||||
*dst++ = RGBA_TO_IA8(src[((y + rows) * bufferWidth) + (x + 1)]);
|
||||
*dst++ = RGBA_TO_IA8(src[((y + rows) * bufferWidth) + (x + 2)]);
|
||||
*dst++ = RGBA_TO_IA8(src[((y + rows) * bufferWidth) + (x + 3)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferIA8, bufferSize);
|
||||
|
||||
return dataBufferIA8;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the RGBA8 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the RGBA8 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToRGBA8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = (bufferWidth * bufferHeight) << 2;
|
||||
uint32_t* dataBufferRGBA8 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferRGBA8, 0x00, bufferSize);
|
||||
|
||||
uint8_t *src = (uint8_t *)rgbaBuffer;
|
||||
uint8_t *dst = (uint8_t *)dataBufferRGBA8;
|
||||
|
||||
for(uint16_t block = 0; block < bufferHeight; block += 4) {
|
||||
for(uint16_t i = 0; i < bufferWidth; i += 4) {
|
||||
for (uint32_t c = 0; c < 4; c++) {
|
||||
uint32_t blockWid = (((block + c) * bufferWidth) + i) << 2 ;
|
||||
|
||||
*dst++ = src[blockWid + 3]; // ar = 0
|
||||
*dst++ = src[blockWid + 0];
|
||||
*dst++ = src[blockWid + 7]; // ar = 1
|
||||
*dst++ = src[blockWid + 4];
|
||||
*dst++ = src[blockWid + 11]; // ar = 2
|
||||
*dst++ = src[blockWid + 8];
|
||||
*dst++ = src[blockWid + 15]; // ar = 3
|
||||
*dst++ = src[blockWid + 12];
|
||||
}
|
||||
for (uint32_t c = 0; c < 4; c++) {
|
||||
uint32_t blockWid = (((block + c) * bufferWidth) + i ) << 2 ;
|
||||
|
||||
*dst++ = src[blockWid + 1]; // gb = 0
|
||||
*dst++ = src[blockWid + 2];
|
||||
*dst++ = src[blockWid + 5]; // gb = 1
|
||||
*dst++ = src[blockWid + 6];
|
||||
*dst++ = src[blockWid + 9]; // gb = 2
|
||||
*dst++ = src[blockWid + 10];
|
||||
*dst++ = src[blockWid + 13]; // gb = 3
|
||||
*dst++ = src[blockWid + 14];
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferRGBA8, bufferSize);
|
||||
|
||||
return dataBufferRGBA8;
|
||||
}
|
||||
|
||||
/**
|
||||
* Downsample the specified RGBA value data buffer to an RGB565 value.
|
||||
*
|
||||
* This routine downsamples the given RGBA data value into the RGB565 texture data format.
|
||||
* Attribution for this routine is given fully to NoNameNo of GRRLIB Wii library.
|
||||
*
|
||||
* <strong>Format Explanation</strong>
|
||||
* \n
|
||||
* RGB565 is a color format without an Alpha component. In order to convert from the given RGBA color format simply concatenate
|
||||
* the first 5 MSB from the Red component to the first 6 MSB from the Green component to the first 5 MSB from the Blue component.
|
||||
* \n\n
|
||||
* <code>
|
||||
* RGBA (32bit): r7r6r5r4r3r2r1r0|g7g6g5g4g3g2g1g0|b7b6b5b4b3b2b1b|0a7a6a5a4a3a2a1a0
|
||||
* \n
|
||||
* RGB565 (16bit): r7r6r5r4r3g7g6g5|g4g3g2b7b6b5b4b3
|
||||
* </code>
|
||||
*
|
||||
* @param rgba A 32-bit RGBA value to convert to the RGB565 format.
|
||||
* @return The RGB565 value of the given RGBA value.
|
||||
*/
|
||||
|
||||
uint16_t Metaphrasis::convertRGBAToRGB565(uint32_t rgba) {
|
||||
return RGBA_TO_RGB565(rgba);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the RGB565 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the RGB565 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToRGB565(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = (bufferWidth * bufferHeight) << 1;
|
||||
uint32_t* dataBufferRGB565 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferRGB565, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint16_t *dst = (uint16_t *)dataBufferRGB565;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 4) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 4) {
|
||||
for(uint16_t rows = 0; rows < 4; rows++) {
|
||||
*dst++ = RGBA_TO_RGB565(src[((y + rows) * bufferWidth) + (x + 0)]);
|
||||
*dst++ = RGBA_TO_RGB565(src[((y + rows) * bufferWidth) + (x + 1)]);
|
||||
*dst++ = RGBA_TO_RGB565(src[((y + rows) * bufferWidth) + (x + 2)]);
|
||||
*dst++ = RGBA_TO_RGB565(src[((y + rows) * bufferWidth) + (x + 3)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferRGB565, bufferSize);
|
||||
|
||||
return dataBufferRGB565;
|
||||
}
|
||||
|
||||
/**
|
||||
* Downsample the specified RGBA value data buffer to an RGB5A3 value.
|
||||
*
|
||||
* This routine downsamples the given RGBA data value into the RGB5A3 texture data format.
|
||||
*
|
||||
* <strong>Format Explanation</strong>
|
||||
* \n
|
||||
* RGB5A3 is really a conditional application of the RGB444 and RGB555 formats based off of the value of the Alpha channel.
|
||||
* If the 3 MSB of the Alpha channel is fully opaque (a7a6a5 == [1][1][1]) then the RGBA color is converted to RGB555 with the first bit set to 1.
|
||||
* Otherwise the RGBA color is converted to RGB444 with a 3 bit alpha channel and the first bit set to 0.
|
||||
*\n\n
|
||||
* <code>
|
||||
* RGBA (32bit): r7r6r5r4r3r2r1r0|g7g6g5g4g3g2g1g0|b7b6b5b4b3b2b1b|0a7a6a5a4a3a2a1a0
|
||||
* \n
|
||||
* RGB555 (16bit): [1]r7r6r5r4r3g7g6|g5g4g3b7b6b5b4b3
|
||||
* \n
|
||||
* RGB444 (16bit): [0]r7r6r5r4g7g6g5|g4b7b6b5b4a7a6a5
|
||||
* </code>
|
||||
*
|
||||
* @param rgba A 32-bit RGBA value to convert to the RGB5A3 format.
|
||||
* @return The RGB5A3 value of the given RGBA value.
|
||||
*/
|
||||
|
||||
uint16_t Metaphrasis::convertRGBAToRGB5A3(uint32_t rgba) {
|
||||
return RGBA_TO_RGB5A3(rgba);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the specified RGBA data buffer into the RGB5A3 texture format
|
||||
*
|
||||
* This routine converts the RGBA data buffer into the RGB5A3 texture format and returns a pointer to the converted buffer.
|
||||
*
|
||||
* @param rgbaBuffer Buffer containing the temporarily rendered RGBA data.
|
||||
* @param bufferWidth Pixel width of the data buffer.
|
||||
* @param bufferHeight Pixel height of the data buffer.
|
||||
* @return A pointer to the allocated buffer.
|
||||
*/
|
||||
|
||||
uint32_t* Metaphrasis::convertBufferToRGB5A3(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight) {
|
||||
uint32_t bufferSize = (bufferWidth * bufferHeight) << 1;
|
||||
uint32_t* dataBufferRGB5A3 = (uint32_t *)MEM2_alloc(bufferSize);
|
||||
memset(dataBufferRGB5A3, 0x00, bufferSize);
|
||||
|
||||
uint32_t *src = (uint32_t *)rgbaBuffer;
|
||||
uint16_t *dst = (uint16_t *)dataBufferRGB5A3;
|
||||
|
||||
for(uint16_t y = 0; y < bufferHeight; y += 4) {
|
||||
for(uint16_t x = 0; x < bufferWidth; x += 4) {
|
||||
for(uint16_t rows = 0; rows < 4; rows++) {
|
||||
*dst++ = RGBA_TO_RGB5A3(src[((y + rows) * bufferWidth) + (x + 0)]);
|
||||
*dst++ = RGBA_TO_RGB5A3(src[((y + rows) * bufferWidth) + (x + 1)]);
|
||||
*dst++ = RGBA_TO_RGB5A3(src[((y + rows) * bufferWidth) + (x + 2)]);
|
||||
*dst++ = RGBA_TO_RGB5A3(src[((y + rows) * bufferWidth) + (x + 3)]);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCFlushRange(dataBufferRGB5A3, bufferSize);
|
||||
|
||||
return dataBufferRGB5A3;
|
||||
}
|
||||
@ -1,123 +0,0 @@
|
||||
/*
|
||||
* Metaphrasis is a static conversion class for transforming RGBA image
|
||||
* buffers into verious GX texture formats for Wii homebrew development.
|
||||
* Copyright (C) 2008 Armin Tamzarian
|
||||
*
|
||||
* This file is part of Metaphrasis.
|
||||
*
|
||||
* Metaphrasis is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* Metaphrasis is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with Metaphrasis. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/** \mainpage Metaphrasis
|
||||
*
|
||||
* \section sec_intro Introduction
|
||||
*
|
||||
* Metaphrasis is a static conversion class for transforming RGBA image buffers into verious GX texture formats for Wii homebrew development.
|
||||
* <br>
|
||||
* Metaphrasis is written in C++ and makes use of a community standard and newly developed algorithms for conversion of 32-bit RGBA data buffers into various GX texture formats common to both the Gamecube and Wii platforms.
|
||||
* <p>
|
||||
* This library was developed in-full by Armin Tamzarian with the support of developers in \#wiidev on EFnet, Chaosteil of libwiisprite, and DrTwox of GRRLIB.
|
||||
*
|
||||
* \section sec_installation_source Installation (Source Code)
|
||||
*
|
||||
* -# Extract the Metaphrasis archive.
|
||||
* -# Copy the contents of the <i>src</i> directory into your project's development path.
|
||||
* -# Include the Metaphrasis header file in your code using syntax such as the following:
|
||||
* \code
|
||||
* #include "Metaphrasis.h"
|
||||
* \endcode
|
||||
*
|
||||
* \section sec_installation_library Installation (Library)
|
||||
*
|
||||
* -# Extract the Metaphrasis archive.
|
||||
* -# Copy the contents of the <i>lib</i> directory into your <i>devKitPro/libogc</i> directory.
|
||||
* -# Include the Metaphrasis header file in your code using syntax such as the following:
|
||||
* \code
|
||||
* #include "Metaphrasis.h"
|
||||
* \endcode
|
||||
*
|
||||
* \section sec_usage Usage
|
||||
*
|
||||
* -# Create a buffer full of 32-bit RGBA values noting both the pixel height and width of the buffer.
|
||||
* -# Call one of the many conversion routines from within your code. (Note: All methods within the Metaphrasis class are static and thus no class instance need be allocated)
|
||||
* \code
|
||||
* uint32_t* rgba8Buffer = Metaphrasis::convertBufferToRGBA8(rgbaBuffer, bufferWidth, bufferHeight);
|
||||
* \endcode
|
||||
* -# Free your temporary RGBA value buffer if you no longer need said values.
|
||||
*
|
||||
* Currently supported conversion routines are as follows:
|
||||
* \li convertBufferToI4
|
||||
* \li convertBufferToI8
|
||||
* \li convertBufferToIA4
|
||||
* \li convertBufferToIA8
|
||||
* \li convertBufferToRGBA8
|
||||
* \li convertBufferToRGB565
|
||||
* \li convertBufferToRGB5A3
|
||||
*
|
||||
* \section sec_license License
|
||||
*
|
||||
* Metaphrasis is distributed under the GNU Lesser General Public License.
|
||||
*
|
||||
* \section sec_contact Contact
|
||||
*
|
||||
* If you have any suggestions, questions, or comments regarding this library feel free to e-mail me at tamzarian1989 [at] gmail [dawt] com.
|
||||
*/
|
||||
|
||||
#ifndef METAPHRASIS_H_
|
||||
#define METAPHRASIS_H_
|
||||
|
||||
#include <gccore.h>
|
||||
#include <stdint.h>
|
||||
#include <malloc.h>
|
||||
#include <string.h>
|
||||
|
||||
/*! \class Metaphrasis
|
||||
* \brief A static conversion class for transforming RGBA image buffers into verious GX texture formats for
|
||||
* Wii homebrew development.
|
||||
* \author Armin Tamzarian
|
||||
* \version 0.1.2
|
||||
*
|
||||
* Metaphrasis is a static conversion class for transforming RGBA image buffers into verious GX texture formats for
|
||||
* Wii homebrew development. Metaphrasis is written in C++ and makes use of a community standard and newly developed
|
||||
* algorithms for conversion of 32-bit RGBA data buffers into various GX texture formats common to both the Gamecube
|
||||
* and Wii platforms.
|
||||
*/
|
||||
#define RGBA_TO_IA4(x) ((x & 0x0000f000) >> 8) | ((x & 0x000000f0) >> 4)
|
||||
#define RGBA_TO_IA8(x) x & 0x0000ffff
|
||||
#define RGBA_TO_RGB565(x) ((x & 0xf8000000) >> 16) | ((x & 0x00fc0000) >> 13) | ((x & 0x0000f800) >> 11)
|
||||
#define RGBA_TO_RGB555(x) ((x & 0xf8000000) >> 17) | ((x & 0x00f80000) >> 14) | ((x & 0x0000f800) >> 11) | 0x8000
|
||||
#define RGBA_TO_RGB444(x) ((x & 0xf0000000) >> 17) | ((x & 0x00f00000) >> 13) | ((x & 0x0000f000) >> 9) | ((x & 0x000000e0) >> 5)
|
||||
#define RGBA_TO_RGB5A3(x) (x & 0xff) < 0xe0 ? RGBA_TO_RGB444(x) : RGBA_TO_RGB555(x)
|
||||
|
||||
class Metaphrasis {
|
||||
public:
|
||||
Metaphrasis();
|
||||
virtual ~Metaphrasis();
|
||||
|
||||
static uint32_t* convertBufferToI4(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToI8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToIA4(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToIA8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToRGBA8(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToRGB565(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
static uint32_t* convertBufferToRGB5A3(uint32_t* rgbaBuffer, uint16_t bufferWidth, uint16_t bufferHeight);
|
||||
|
||||
static uint8_t convertRGBAToIA4(uint32_t rgba);
|
||||
static uint16_t convertRGBAToIA8(uint32_t rgba);
|
||||
static uint16_t convertRGBAToRGB565(uint32_t rgba);
|
||||
static uint16_t convertRGBAToRGB5A3(uint32_t rgba);
|
||||
|
||||
};
|
||||
|
||||
#endif /*METAPHRASIS_H_*/
|
||||
Loading…
x
Reference in New Issue
Block a user