--- /dev/null
+/*
+Copyright (C) 2003 Rice1964
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <stdlib.h>
+
+#include "Config.h"
+#include "Debugger.h"
+#include "OGLDebug.h"
+#include "OGLGraphicsContext.h"
+#include "OGLTexture.h"
+#include "TextureManager.h"
+
+#ifdef HAVE_GLES
+#define GL_RGBA4 0x8056
+#endif
+
+COGLTexture::COGLTexture(uint32 dwWidth, uint32 dwHeight, TextureUsage usage) :
+ CTexture(dwWidth,dwHeight,usage),
+ m_glFmt(GL_RGBA)
+{
+ // FIXME: If usage is AS_RENDER_TARGET, we need to create pbuffer instead of regular texture
+
+ m_dwTextureFmt = TEXTURE_FMT_A8R8G8B8; // Always use 32bit to load texture
+ glGenTextures( 1, &m_dwTextureName );
+ OPENGL_CHECK_ERRORS;
+
+ // Make the width and height be the power of 2
+ uint32 w;
+ for (w = 1; w < dwWidth; w <<= 1);
+ m_dwCreatedTextureWidth = w;
+ for (w = 1; w < dwHeight; w <<= 1);
+ m_dwCreatedTextureHeight = w;
+
+ if (dwWidth*dwHeight > 256*256)
+ TRACE4("Large texture: (%d x %d), created as (%d x %d)",
+ dwWidth, dwHeight,m_dwCreatedTextureWidth,m_dwCreatedTextureHeight);
+
+ m_fYScale = (float)m_dwCreatedTextureHeight/(float)m_dwHeight;
+ m_fXScale = (float)m_dwCreatedTextureWidth/(float)m_dwWidth;
+
+ m_pTexture = malloc(m_dwCreatedTextureWidth * m_dwCreatedTextureHeight * GetPixelSize());
+//#ifndef HAVE_GLES
+
+ switch( options.textureQuality )
+ {
+ case TXT_QUALITY_DEFAULT:
+ if( options.colorQuality == TEXTURE_FMT_A4R4G4B4 )
+ m_glFmt = GL_RGBA4;
+ break;
+ case TXT_QUALITY_32BIT:
+ break;
+ case TXT_QUALITY_16BIT:
+ m_glFmt = GL_RGBA4;
+ break;
+ };
+
+//#endif
+ LOG_TEXTURE(TRACE2("New texture: (%d, %d)", dwWidth, dwHeight));
+}
+
+COGLTexture::~COGLTexture()
+{
+ // FIXME: If usage is AS_RENDER_TARGET, we need to destroy the pbuffer
+
+ glDeleteTextures(1, &m_dwTextureName );
+ OPENGL_CHECK_ERRORS;
+ free(m_pTexture);
+ m_pTexture = NULL;
+ m_dwWidth = 0;
+ m_dwHeight = 0;
+}
+
+bool COGLTexture::StartUpdate(DrawInfo *di)
+{
+ if (m_pTexture == NULL)
+ return false;
+
+ di->dwHeight = (uint16)m_dwHeight;
+ di->dwWidth = (uint16)m_dwWidth;
+ di->dwCreatedHeight = m_dwCreatedTextureHeight;
+ di->dwCreatedWidth = m_dwCreatedTextureWidth;
+ di->lpSurface = m_pTexture;
+ di->lPitch = GetPixelSize()*m_dwCreatedTextureWidth;
+
+ return true;
+}
+
+void COGLTexture::EndUpdate(DrawInfo *di)
+{
+ COGLGraphicsContext *pcontext = (COGLGraphicsContext *)(CGraphicsContext::g_pGraphicsContext); // we need this to check if the GL extension is avaible
+
+ glBindTexture(GL_TEXTURE_2D, m_dwTextureName);
+ OPENGL_CHECK_ERRORS;
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ OPENGL_CHECK_ERRORS;
+
+ // mipmap support
+ if(options.mipmapping)
+ {
+ int m_maximumAnistropy = pcontext->getMaxAnisotropicFiltering(); //if getMaxAnisotropicFiltering() return more than 0, so aniso is supported and maxAnisotropicFiltering is set
+
+ // Set Anisotropic filtering (mipmapping have to be activated, aniso filtering is not effective without)
+ if( m_maximumAnistropy )
+ {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, m_maximumAnistropy);
+ OPENGL_CHECK_ERRORS;
+ }
+
+ // Set Mipmap
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
+ OPENGL_CHECK_ERRORS;
+
+#if SDL_VIDEO_OPENGL
+ // Tell to hardware to generate mipmap (himself) when glTexImage2D is called
+ glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
+#elif SDL_VIDEO_OPENGL_ES2
+ glGenerateMipmap(GL_TEXTURE_2D);
+#endif
+ OPENGL_CHECK_ERRORS;
+ }
+ else
+ {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ OPENGL_CHECK_ERRORS;
+ }
+
+ // Copy the image data from main memory to video card texture memory
+#if SDL_VIDEO_OPENGL
+#ifdef HAVE_GLES
+ // first change format BGRA->RGBA and reduce bit if needed
+ unsigned char* m_glesTex;
+ if (m_glFmt == GL_RGBA4) {
+ m_glesTex = (unsigned char*)malloc(m_dwCreatedTextureHeight*m_dwCreatedTextureWidth*2);
+ unsigned short *p = (unsigned short*)m_glesTex;
+ unsigned char *f = (unsigned char*)m_pTexture;
+ for (int j=0; j<m_dwCreatedTextureHeight; j++)
+ for (int i=0; i<m_dwCreatedTextureWidth; i++) {
+ // *f = B, *(f+1) = G, *(f+2) = R, *(f+3) = A
+ // RRRR GGGG BBBB AAAA
+ *(p++)= ((*(f+2))&0xf0)>>4 | ((*(f+1))&0xf0) | (((*f))&0xf0)<<4 | ((*(f+3))&0xf0)<<8;
+ f+=4;
+ }
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_dwCreatedTextureWidth, m_dwCreatedTextureHeight, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, m_glesTex);
+ } else {
+ m_glesTex = (unsigned char*)malloc(m_dwCreatedTextureHeight*m_dwCreatedTextureWidth*4);
+ unsigned int *p = (unsigned int*)m_glesTex;
+ unsigned char *f = (unsigned char*)m_pTexture;
+ for (int j=0; j<m_dwCreatedTextureHeight; j++)
+ for (int i=0; i<m_dwCreatedTextureWidth; i++) {
+ // *f = B, *(f+1) = G, *(f+2) = R, *(f+3) = A
+ // AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
+ *(p++)= ((*(f+2))) | ((*(f+1)))<<8 | ((*f))<<16 | ((*(f+3)))<<24;
+ f+=4;
+ }
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_dwCreatedTextureWidth, m_dwCreatedTextureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_glesTex);
+ }
+ free(m_glesTex);
+#else
+ glTexImage2D(GL_TEXTURE_2D, 0, m_glFmt, m_dwCreatedTextureWidth, m_dwCreatedTextureHeight, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, m_pTexture);
+#endif
+#elif SDL_VIDEO_OPENGL_ES2
+ //GL_BGRA_IMG works on adreno but not inside profiler.
+ glTexImage2D(GL_TEXTURE_2D, 0, m_glFmt, m_dwCreatedTextureWidth, m_dwCreatedTextureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_pTexture);
+#endif
+ OPENGL_CHECK_ERRORS;
+}
+
+
+// Keep in mind that the real texture is not scaled to fix the created opengl texture yet.
+// when the image is need to be scaled, ScaleImageToSurface in CTexure will be called to
+// scale the image automatically
+
notaz.gp2x.de / mupen64plus-pandora.git / blobdiff