// "filename" param is something like "screenshots/shot0000.tga"
// note that if the last extension is ".jpg", then it'll save a JPG, else TGA
//
void R_TakeScreenshot( int x, int y, int width, int height, char *fileName ) {
#ifndef _XBOX
byte *buffer;
int i, c, temp;
qboolean bSaveAsJPG = !strnicmp(&fileName[strlen(fileName)-4],".jpg",4);
if (bSaveAsJPG)
{
// JPG saver expects to be fed RGBA data, though it presumably ignores 'A'...
//
buffer = (unsigned char *) Z_Malloc(glConfig.vidWidth*glConfig.vidHeight*4, TAG_TEMP_WORKSPACE, qfalse);
qglReadPixels( x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
// gamma correct
if ( tr.overbrightBits>0 && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, glConfig.vidWidth * glConfig.vidHeight * 4 );
}
SaveJPG(fileName, 95, width, height, buffer);
}
else
{
// TGA...
//
buffer = (unsigned char *) Z_Malloc(glConfig.vidWidth*glConfig.vidHeight*3 + 18, TAG_TEMP_WORKSPACE, qfalse);
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = width & 255;
buffer[13] = width >> 8;
buffer[14] = height & 255;
buffer[15] = height >> 8;
buffer[16] = 24; // pixel size
qglReadPixels( x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer+18 );
// swap rgb to bgr
c = 18 + width * height * 3;
for (i=18 ; i<c ; i+=3) {
temp = buffer[i];
buffer[i] = buffer[i+2];
buffer[i+2] = temp;
}
// gamma correct
if ( tr.overbrightBits>0 && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer + 18, glConfig.vidWidth * glConfig.vidHeight * 3 );
}
FS_WriteFile( fileName, buffer, c );
}
Z_Free( buffer );
#endif
}
/*
==================
GL_ScreenShot_f
==================
*/
void GL_ScreenShot_f (void)
{
byte *buffer;
#ifdef WIN32
DWORD tID;
#endif
buffer = malloc(vid.width*vid.height*3);
qglReadPixels (0, 0, vid.width, vid.height, GL_RGB, GL_UNSIGNED_BYTE, buffer );
#ifdef WIN32
if (!strcmp (ri.Cmd_Argv(1), "jpg"))
{
GL_ScreenShot_JPG (buffer);
}
else
{
#ifdef USE_THREADS
//_beginthreadex (NULL, 0, (unsigned int (__stdcall *)(void *))png_write_thread, (void *)buffer, 0, &tID);
CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE)png_write_thread, (LPVOID)buffer, 0, &tID);
ri.Con_Printf (PRINT_ALL, "Taking PNG screenshot...\n");
#else
png_write_thread (buffer);
#endif
}
#else
GL_ScreenShot_JPG (buffer);
#endif
}
/*
=======================================================================================================================================
RB_TestFlare
=======================================================================================================================================
*/
void RB_TestFlare(flare_t *f) {
float depth;
qboolean visible;
float fade;
float screenZ;
FBO_t *oldFbo;
backEnd.pc.c_flareTests++;
// doing a readpixels is as good as doing a glFinish(), so
// don't bother with another sync
glState.finishCalled = qfalse;
// if we're doing multisample rendering, read from the correct FBO
oldFbo = glState.currentFBO;
if (tr.msaaResolveFbo)
{
FBO_Bind(tr.msaaResolveFbo);
}
// read back the z buffer contents
qglReadPixels(f->windowX, f->windowY, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &depth);
// if we're doing multisample rendering, switch to the old FBO
if (tr.msaaResolveFbo)
{
FBO_Bind(oldFbo);
}
screenZ = backEnd.viewParms.projectionMatrix[14] /
((2*depth - 1) * backEnd.viewParms.projectionMatrix[11] - backEnd.viewParms.projectionMatrix[10]);
visible = (qboolean)(f->flags & 1);
if (-f->eyeZ - -screenZ > 24)
visible = qfalse;
if (visible) {
if (!f->visible) {
f->visible = qtrue;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = ((backEnd.refdef.time - f->fadeTime) /1000.0f) * r_flareFade->value;
} else {
if (f->visible) {
f->visible = qfalse;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = 1.0f - ((backEnd.refdef.time - f->fadeTime) / 1000.0f) * r_flareFade->value;
}
if (fade < 0) {
fade = 0;
}
if (fade > 1) {
fade = 1;
}
f->drawIntensity = fade;
}
void R_LevelShot( void ) {
#ifndef _XBOX
char checkname[MAX_OSPATH];
byte *buffer;
byte *source;
byte *src, *dst;
int x, y;
int r, g, b;
float xScale, yScale;
int xx, yy;
sprintf( checkname, "levelshots/%s.tga", tr.worldDir + strlen("maps/") );
source = (byte*) Z_Malloc( glConfig.vidWidth * glConfig.vidHeight * 3, TAG_TEMP_WORKSPACE, qfalse );
buffer = (byte*) Z_Malloc( LEVELSHOTSIZE * LEVELSHOTSIZE*3 + 18, TAG_TEMP_WORKSPACE, qfalse );
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = LEVELSHOTSIZE & 255;
buffer[13] = LEVELSHOTSIZE >> 8;
buffer[14] = LEVELSHOTSIZE & 255;
buffer[15] = LEVELSHOTSIZE >> 8;
buffer[16] = 24; // pixel size
qglReadPixels( 0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, source );
// resample from source
xScale = glConfig.vidWidth / (4.0*LEVELSHOTSIZE);
yScale = glConfig.vidHeight / (3.0*LEVELSHOTSIZE);
for ( y = 0 ; y < LEVELSHOTSIZE ; y++ ) {
for ( x = 0 ; x < LEVELSHOTSIZE ; x++ ) {
r = g = b = 0;
for ( yy = 0 ; yy < 3 ; yy++ ) {
for ( xx = 0 ; xx < 4 ; xx++ ) {
src = source + 3 * ( glConfig.vidWidth * (int)( (y*3+yy)*yScale ) + (int)( (x*4+xx)*xScale ) );
r += src[0];
g += src[1];
b += src[2];
}
}
dst = buffer + 18 + 3 * ( y * LEVELSHOTSIZE + x );
dst[0] = b / 12;
dst[1] = g / 12;
dst[2] = r / 12;
}
}
// gamma correct
if ( glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer + 18, LEVELSHOTSIZE * LEVELSHOTSIZE * 3 );
}
FS_WriteFile( checkname, buffer, LEVELSHOTSIZE * LEVELSHOTSIZE*3 + 18 );
Z_Free( buffer );
Z_Free( source );
VID_Printf( PRINT_ALL, "Wrote %s\n", checkname );
#endif
}
/*
==================
RB_ReadPixels
Reads an image but takes care of alignment issues for reading RGB images.
Reads a minimum offset for where the RGB data starts in the image from
integer stored at pointer offset. When the function has returned the actual
offset was written back to address offset. This address will always have an
alignment of packAlign to ensure efficient copying.
Stores the length of padding after a line of pixels to address padlen
Return value must be freed with ri.Hunk_FreeTempMemory()
==================
*/
byte *RB_ReadPixels(int x, int y, int width, int height, size_t *offset, int *padlen)
{
byte *buffer, *bufstart;
int padwidth, linelen;
GLint packAlign;
qglGetIntegerv(GL_PACK_ALIGNMENT, &packAlign);
linelen = width * 3;
padwidth = PAD(linelen, packAlign);
// Allocate a few more bytes so that we can choose an alignment we like
buffer = ri.Hunk_AllocateTempMemory(padwidth * height + *offset + packAlign - 1);
bufstart = buffer;
padwidth = linelen;
int p2width = 1, p2height = 1;
int xx, yy, aa;
while (p2width < glConfig.vidWidth)
p2width *= 2;
while (p2height < glConfig.vidHeight)
p2height *= 2;
byte *source = (byte *) ri.Hunk_AllocateTempMemory(p2width * p2height * 4);
qglReadPixels(0, 0, p2width, p2height, GL_RGBA, GL_UNSIGNED_BYTE, source);
for (yy = y; yy < height; yy++)
for (xx = x; xx < width; xx++)
for (aa = 0; aa < 3; aa++)
buffer[yy * width * 3 + xx * 3 + aa] = source[(yy + y) * p2width * 4 + (xx + x) * 4 + aa];
ri.Hunk_FreeTempMemory(source);
*offset = bufstart - buffer;
*padlen = padwidth - linelen;
return buffer;
}
static void R_LevelShot( void ) {
#ifndef _XBOX
char checkname[MAX_OSPATH];
byte *buffer;
byte *source;
byte *src, *dst;
int x, y;
int r, g, b;
float xScale, yScale;
int xx, yy;
sprintf( checkname, "levelshots/%s.tga", tr.world->baseName );
source = (unsigned char *)Hunk_AllocateTempMemory( glConfig.vidWidth * glConfig.vidHeight * 3 );
buffer = (unsigned char *)Hunk_AllocateTempMemory( LEVELSHOTSIZE * LEVELSHOTSIZE*3 + 18);
Com_Memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = LEVELSHOTSIZE & 255;
buffer[13] = LEVELSHOTSIZE >> 8;
buffer[14] = LEVELSHOTSIZE & 255;
buffer[15] = LEVELSHOTSIZE >> 8;
buffer[16] = 24; // pixel size
qglReadPixels( 0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, source );
// resample from source
xScale = glConfig.vidWidth / (4.0*LEVELSHOTSIZE);
yScale = glConfig.vidHeight / (3.0*LEVELSHOTSIZE);
for ( y = 0 ; y < LEVELSHOTSIZE ; y++ ) {
for ( x = 0 ; x < LEVELSHOTSIZE ; x++ ) {
r = g = b = 0;
for ( yy = 0 ; yy < 3 ; yy++ ) {
for ( xx = 0 ; xx < 4 ; xx++ ) {
src = source + 3 * ( glConfig.vidWidth * (int)( (y*3+yy)*yScale ) + (int)( (x*4+xx)*xScale ) );
r += src[0];
g += src[1];
b += src[2];
}
}
dst = buffer + 18 + 3 * ( y * LEVELSHOTSIZE + x );
dst[0] = b / 12;
dst[1] = g / 12;
dst[2] = r / 12;
}
}
// gamma correct
if ( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer + 18, LEVELSHOTSIZE * LEVELSHOTSIZE * 3 );
}
FS_WriteFile( checkname, buffer, LEVELSHOTSIZE * LEVELSHOTSIZE*3 + 18 );
Hunk_FreeTempMemory( buffer );
Hunk_FreeTempMemory( source );
Com_Printf ("Wrote %s\n", checkname );
#endif
}
/*
==================
R_TakeScreenshot
==================
*/
void R_TakeScreenshot( int x, int y, int width, int height, char *fileName ) {
byte *buffer;
int i, c, temp;
buffer = (unsigned char *)Hunk_AllocateTempMemory(glConfig.vidWidth*glConfig.vidHeight*3+18);
Com_Memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = width & 255;
buffer[13] = width >> 8;
buffer[14] = height & 255;
buffer[15] = height >> 8;
buffer[16] = 24; // pixel size
qglReadPixels( x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer+18 );
// swap rgb to bgr
c = 18 + width * height * 3;
for (i=18 ; i<c ; i+=3) {
temp = buffer[i];
buffer[i] = buffer[i+2];
buffer[i+2] = temp;
}
// gamma correct
if ( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer + 18, glConfig.vidWidth * glConfig.vidHeight * 3 );
}
FS_WriteFile( fileName, buffer, c );
Hunk_FreeTempMemory( buffer );
}
/*
==============
CaptureRenderToFile
==============
*/
void idRenderSystemLocal::CaptureRenderToFile( const char *fileName, bool fixAlpha ) {
if ( !glConfig.isInitialized ) {
return;
}
renderCrop_t *rc = &renderCrops[currentRenderCrop];
guiModel->EmitFullScreen();
guiModel->Clear();
R_IssueRenderCommands();
qglReadBuffer( GL_BACK );
// include extra space for OpenGL padding to word boundaries
int c = ( rc->width + 3 ) * rc->height;
byte *data = (byte *)R_StaticAlloc( c * 3 );
qglReadPixels( rc->x, rc->y, rc->width, rc->height, GL_RGB, GL_UNSIGNED_BYTE, data );
byte *data2 = (byte *)R_StaticAlloc( c * 4 );
for ( int i = 0 ; i < c ; i++ ) {
data2[ i * 4 ] = data[ i * 3 ];
data2[ i * 4 + 1 ] = data[ i * 3 + 1 ];
data2[ i * 4 + 2 ] = data[ i * 3 + 2 ];
data2[ i * 4 + 3 ] = 0xff;
}
R_WriteTGA( fileName, data2, rc->width, rc->height, true );
R_StaticFree( data );
R_StaticFree( data2 );
}
/*
=============
RB_ExportCubemaps
=============
*/
const void *RB_ExportCubemaps(const void *data)
{
const exportCubemapsCommand_t *cmd = data;
// finish any 2D drawing if needed
if (tess.numIndexes)
RB_EndSurface();
if (!glRefConfig.framebufferObject || !tr.world || tr.numCubemaps == 0)
{
// do nothing
ri.Printf(PRINT_ALL, "Nothing to export!\n");
return (const void *)(cmd + 1);
}
if (cmd)
{
FBO_t *oldFbo = glState.currentFBO;
int sideSize = r_cubemapSize->integer * r_cubemapSize->integer * 4;
byte *cubemapPixels = ri.Malloc(sideSize * 6);
int i, j;
FBO_Bind(tr.renderCubeFbo);
for (i = 0; i < tr.numCubemaps; i++)
{
char filename[MAX_QPATH];
cubemap_t *cubemap = &tr.cubemaps[i];
byte *p = cubemapPixels;
for (j = 0; j < 6; j++)
{
FBO_AttachImage(tr.renderCubeFbo, cubemap->image, GL_COLOR_ATTACHMENT0_EXT, j);
qglReadPixels(0, 0, r_cubemapSize->integer, r_cubemapSize->integer, GL_RGBA, GL_UNSIGNED_BYTE, p);
p += sideSize;
}
if (cubemap->name[0])
{
COM_StripExtension(cubemap->name, filename, MAX_QPATH);
Q_strcat(filename, MAX_QPATH, ".dds");
}
else
{
Com_sprintf(filename, MAX_QPATH, "cubemaps/%s/%03d.dds", tr.world->baseName, i);
}
R_SaveDDS(filename, cubemapPixels, r_cubemapSize->integer, r_cubemapSize->integer, 6);
ri.Printf(PRINT_ALL, "Saved cubemap %d as %s\n", i, filename);
}
FBO_Bind(oldFbo);
ri.Free(cubemapPixels);
}
return (const void *)(cmd + 1);
}
int R_MME_MultiPassNext (qboolean useMain)
{
mmeBlurControl_t *control;
shotData_t *shotData;
passData_t *passData;
byte* outAlloc;
__m64 *outAlign;
//int i;
if (useMain) {
control = &passDataMain.control;
shotData = &shotDataMain;
passData = &passDataMain;
} else {
control = &passDataLeft.control;
shotData = &shotDataLeft;
passData = &passDataLeft;
}
if ( !control->totalFrames )
return 0;
if (shotData->allocFailed) {
return 0;
}
outAlloc = ri.Hunk_AllocateTempMemory( shotData->pixelCount * 3 + 16);
outAlign = (__m64 *)((((int)(outAlloc)) + 15) & ~15);
// don't call GLimp_EndFrame()
//qglReadPixels(0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_BGR, GL_UNSIGNED_BYTE, outAlign);
qglReadPixels(0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, outAlign);
// testing
#if 0
for (i = 0; i < glConfig.vidWidth * glConfig.vidHeight * 3; i++) {
((byte *)outAlign)[i] += i;
}
#endif
R_MME_BlurAccumAdd( &passData->dof, outAlign );
ri.Hunk_FreeTempMemory( outAlloc );
if ( ++(control->totalIndex) < control->totalFrames ) {
int nextIndex = control->totalIndex;
if ( ++(nextIndex) >= control->totalFrames ) {
// pass
}
return 1;
}
control->totalIndex = 0;
R_MME_BlurAccumShift( &passData->dof );
return 0;
}
/*
====================
R_LevelShot
levelshots are specialized 128*128 thumbnails for
the menu system, sampled down from full screen distorted images
====================
*/
void R_LevelShot( void ) {
char checkname[MAX_OSPATH];
byte *buffer;
byte *source;
byte *src, *dst;
int x, y;
int r, g, b;
float xScale, yScale;
int xx, yy;
sprintf( checkname, "levelshots/%s.tga", tr.world->baseName );
source = ri.Hunk_AllocateTempMemory( glConfig.vidWidth * glConfig.vidHeight * 3 );
buffer = ri.Hunk_AllocateTempMemory( 128 * 128*3 + 18);
Com_Memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = 128;
buffer[14] = 128;
buffer[16] = 24; // pixel size
qglReadPixels( 0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, source );
// resample from source
xScale = glConfig.vidWidth / 512.0f;
yScale = glConfig.vidHeight / 384.0f;
for ( y = 0 ; y < 128 ; y++ ) {
for ( x = 0 ; x < 128 ; x++ ) {
r = g = b = 0;
for ( yy = 0 ; yy < 3 ; yy++ ) {
for ( xx = 0 ; xx < 4 ; xx++ ) {
src = source + 3 * ( glConfig.vidWidth * (int)( (y*3+yy)*yScale ) + (int)( (x*4+xx)*xScale ) );
r += src[0];
g += src[1];
b += src[2];
}
}
dst = buffer + 18 + 3 * ( y * 128 + x );
dst[0] = b / 12;
dst[1] = g / 12;
dst[2] = r / 12;
}
}
// gamma correct
if ( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer + 18, 128 * 128 * 3 );
}
ri.FS_WriteFile( checkname, buffer, 128 * 128*3 + 18 );
ri.Hunk_FreeTempMemory( buffer );
ri.Hunk_FreeTempMemory( source );
ri.Printf( PRINT_ALL, "Wrote %s\n", checkname );
}
void R_MME_GetMultiShot (byte * target, int width, int height, int glMode)
{
if ( !passDataMain.control.totalFrames ) {
//R_MME_GetShot( target, shotData.main.type );
qglReadPixels(0, 0, width, height, glMode, GL_UNSIGNED_BYTE, target);
} else {
//Com_Memcpy( target, passDataMain.dof.accum, mainData.pixelCount * 3 );
Com_Memcpy( target, passDataMain.dof.accum, shotDataMain.pixelCount * 3 );
}
}
/*
==================
RB_TestFlare
==================
*/
static void RB_TestFlare( flare_t *f ) {
float depth;
qboolean visible;
float fade;
float screenZ;
if (f->fadeTime == -666)
{
RB_TestFlareFast(f);
return;
}
backEnd.pc.c_flareTests++;
// doing a readpixels is as good as doing a glFinish(), so
// don't bother with another sync
glState.finishCalled = qfalse;
// read back the z buffer contents
qglReadPixels( f->windowX, f->windowY, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &depth );
screenZ = backEnd.viewParms.projectionMatrix[14] /
( ( 2*depth - 1 ) * backEnd.viewParms.projectionMatrix[11] - backEnd.viewParms.projectionMatrix[10] );
visible = ( -f->eyeZ - -screenZ ) < 24;
if ( visible ) {
if ( !f->visible ) {
f->visible = qtrue;
f->fadeTime = backEnd.refdef.time - 1;
}
{
fade = ( ( backEnd.refdef.time - f->fadeTime ) / 1000.0f ) * r_flareFade->value;
}
} else {
if ( f->visible ) {
f->visible = qfalse;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = 1.0f - ( ( backEnd.refdef.time - f->fadeTime ) / 1000.0f ) * r_flareFade->value;
}
if ( fade < 0 ) {
fade = 0;
}
if ( fade > 1 ) {
fade = 1;
}
f->drawIntensity = fade;
}
/**
* @brief RB_SwapBuffers
* @param[in] data
* @return
*/
const void *RB_SwapBuffers(const void *data)
{
const swapBuffersCommand_t *cmd;
// finish any 2D drawing if needed
if (tess.numIndexes)
{
RB_EndSurface();
}
// texture swapping test
if (r_showImages->integer)
{
RB_ShowImages();
}
RB_GammaScreen();
cmd = ( const swapBuffersCommand_t * ) data;
// we measure overdraw by reading back the stencil buffer and
// counting up the number of increments that have happened
if (r_measureOverdraw->integer)
{
int i;
long sum = 0;
unsigned char *stencilReadback;
stencilReadback = ri.Hunk_AllocateTempMemory(glConfig.vidWidth * glConfig.vidHeight);
qglReadPixels(0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencilReadback);
for (i = 0; i < glConfig.vidWidth * glConfig.vidHeight; i++)
{
sum += stencilReadback[i];
}
backEnd.pc.c_overDraw += sum;
ri.Hunk_FreeTempMemory(stencilReadback);
}
if (!glState.finishCalled)
{
qglFinish();
}
Ren_LogComment("***************** RB_SwapBuffers *****************\n\n\n");
ri.GLimp_SwapFrame();
backEnd.projection2D = qfalse;
return ( const void * ) (cmd + 1);
}
/*
===================
RB_ShowIntensity
Debugging tool to see how much dynamic range a scene is using.
The greatest of the rgb values at each pixel will be used, with
the resulting color shading from red at 0 to green at 128 to blue at 255
===================
*/
static void RB_ShowIntensity() {
byte *colorReadback;
int i, j, c;
if ( !r_showIntensity.GetBool() ) {
return;
}
colorReadback = (byte *)R_StaticAlloc( renderSystem->GetWidth() * renderSystem->GetHeight() * 4, TAG_RENDER_TOOLS );
qglReadPixels( 0, 0, renderSystem->GetWidth(), renderSystem->GetHeight(), GL_RGBA, GL_UNSIGNED_BYTE, colorReadback );
c = renderSystem->GetWidth() * renderSystem->GetHeight() * 4;
for ( i = 0; i < c; i+=4 ) {
j = colorReadback[i];
if ( colorReadback[i+1] > j ) {
j = colorReadback[i+1];
}
if ( colorReadback[i+2] > j ) {
j = colorReadback[i+2];
}
if ( j < 128 ) {
colorReadback[i+0] = 2*(128-j);
colorReadback[i+1] = 2*j;
colorReadback[i+2] = 0;
} else {
colorReadback[i+0] = 0;
colorReadback[i+1] = 2*(255-j);
colorReadback[i+2] = 2*(j-128);
}
}
// draw it back to the screen
qglLoadIdentity();
qglMatrixMode( GL_PROJECTION );
GL_State( GLS_DEPTHFUNC_ALWAYS );
qglPushMatrix();
qglLoadIdentity();
qglOrtho( 0, 1, 0, 1, -1, 1 );
qglRasterPos2f( 0, 0 );
qglPopMatrix();
GL_Color( 1, 1, 1 );
globalImages->BindNull();
qglMatrixMode( GL_MODELVIEW );
qglDrawPixels( renderSystem->GetWidth(), renderSystem->GetHeight(), GL_RGBA , GL_UNSIGNED_BYTE, colorReadback );
R_StaticFree( colorReadback );
}
/*
==================
R_TakeScreenshot
==================
*/
void R_TakeScreenshotJPEG( int x, int y, int width, int height, char *fileName ) {
byte *buffer;
buffer = (unsigned char *)Hunk_AllocateTempMemory(glConfig.vidWidth*glConfig.vidHeight*4);
qglReadPixels( x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
// gamma correct
if ( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, glConfig.vidWidth * glConfig.vidHeight * 4 );
}
FS_WriteFile( fileName, buffer, 1 ); // create path
SaveJPG( fileName, 95, glConfig.vidWidth, glConfig.vidHeight, buffer);
Hunk_FreeTempMemory( buffer );
}
/*
==================
RB_TakeScreenshotJPEG
==================
*/
void RB_TakeScreenshotJPEG( int x, int y, int width, int height, char *fileName ) {
byte *buffer;
buffer = (byte *)ri.Hunk_AllocateTempMemory(glConfig.vidWidth*glConfig.vidHeight*4); // ***GREGS_VC9_PORT_MOD*** -- needed typecast
qglReadPixels( x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
// gamma correct
if ( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, glConfig.vidWidth * glConfig.vidHeight * 4 );
}
ri.FS_WriteFile( fileName, buffer, 1 ); // create path
SaveJPG( fileName, 95, glConfig.vidWidth, glConfig.vidHeight, buffer);
ri.Hunk_FreeTempMemory( buffer );
}
// levelshots are specialized 128*128 thumbnails for the menu system, sampled
// down from full screen distorted images
static void R_LevelShot() {
char checkname[ MAX_OSPATH ];
String::Sprintf( checkname, MAX_OSPATH, "levelshots/%s.tga", tr.world->baseName );
byte* source = new byte[ glConfig.vidWidth * glConfig.vidHeight * 3 ];
byte* buffer = new byte[ 128 * 128 * 3 ];
qglReadPixels( 0, 0, glConfig.vidWidth, glConfig.vidHeight, GL_RGB, GL_UNSIGNED_BYTE, source );
// resample from source
float xScale = glConfig.vidWidth / 512.0f;
float yScale = glConfig.vidHeight / 384.0f;
for ( int y = 0; y < 128; y++ ) {
for ( int x = 0; x < 128; x++ ) {
int r = 0;
int g = 0;
int b = 0;
for ( int yy = 0; yy < 3; yy++ ) {
for ( int xx = 0; xx < 4; xx++ ) {
byte* src = source + 3 * ( glConfig.vidWidth * ( int )( ( y * 3 + yy ) * yScale ) + ( int )( ( x * 4 + xx ) * xScale ) );
r += src[ 0 ];
g += src[ 1 ];
b += src[ 2 ];
}
}
byte* dst = buffer + 3 * ( y * 128 + x );
dst[ 0 ] = r / 12;
dst[ 1 ] = g / 12;
dst[ 2 ] = b / 12;
}
}
// gamma correct
if ( tr.overbrightBits > 0 && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, 128 * 128 * 3 );
}
R_SaveTGA( checkname, buffer, 128, 128, false );
delete[] buffer;
delete[] source;
common->Printf( "Wrote %s\n", checkname );
}
/*
==================
RB_TakeScreenshotJPEG
==================
*/
void RB_TakeScreenshotJPEG( int x, int y, int width, int height, char *fileName ) {
byte *buffer;
int quality = r_jpegQuality -> value;
buffer = ri.Hunk_AllocateTempMemory(glConfig.vidWidth*glConfig.vidHeight*4);
qglReadPixels( x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
// gamma correct
if ( glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, glConfig.vidWidth * glConfig.vidHeight * 4 );
}
ri.FS_WriteFile( fileName, buffer, 1 ); // create path
SaveJPG( fileName, quality, glConfig.vidWidth, glConfig.vidHeight, buffer);
ri.Hunk_FreeTempMemory( buffer );
}
/*
===============
idRenderSystemLocal::ProjectMouseToWorldCoord
http://nehe.gamedev.net/article/using_gluunproject/16013/
===============
*/
void idRenderSystemLocal::ProjectMouseToWorldCoord( idVec2 mouseXY, idVec3 &worldPos ) {
GLint viewport[4]; // Where The Viewport Values Will Be Stored
GLfloat modelview[16]; // Where The 16 Doubles Of The Modelview Matrix Are To Be Stored
GLfloat projection[16];
GLfloat winX, winY, winZ;
qglGetIntegerv(GL_VIEWPORT, viewport); // Retrieves The Viewport Values (X, Y, Width, height).
qglGetFloatv(GL_MODELVIEW_MATRIX, modelview); // Retrieve The Modelview Matrix
qglGetFloatv(GL_PROJECTION_MATRIX, projection); // Retrieve The Modelview Matrix
winX = (float)mouseXY.x;
winY = (float)viewport[3] - (float)mouseXY.y;
qglReadPixels( mouseXY.x, int(winY), 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &winZ );
myUnProjectf( winX, winY, winZ, modelview, projection, viewport, &worldPos.x);
}
static void RB_TestFlare( flare_t* f ) {
backEnd.pc.c_flareTests++;
// Original Quake 3 code.
#if 0
// doing a readpixels is as good as doing a glFinish(), so
// don't bother with another sync
glState.finishCalled = false;
// read back the z buffer contents
float depth;
qglReadPixels( f->windowX, f->windowY, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &depth );
float screenZ = backEnd.viewParms.projectionMatrix[ 14 ] /
( ( 2 * depth - 1 ) * backEnd.viewParms.projectionMatrix[ 11 ] - backEnd.viewParms.projectionMatrix[ 10 ] );
bool visible = ( -f->eyeZ - -screenZ ) < 24;
#endif
bool visible = f->flags & 1;
float fade;
if ( visible ) {
if ( !f->visible ) {
f->visible = true;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = ( ( backEnd.refdef.time - f->fadeTime ) / 1000.0f ) * r_flareFade->value;
} else {
if ( f->visible ) {
f->visible = false;
f->fadeTime = backEnd.refdef.time - 1;
}
fade = 1.0f - ( ( backEnd.refdef.time - f->fadeTime ) / 1000.0f ) * r_flareFade->value;
}
if ( fade < 0 ) {
fade = 0;
}
if ( fade > 1 ) {
fade = 1;
}
f->drawIntensity = fade;
}
/*
===================
RB_CountStencilBuffer
Print an overdraw count based on stencil index values
===================
*/
static void RB_CountStencilBuffer() {
int count;
int i;
byte *stencilReadback;
stencilReadback = (byte *)R_StaticAlloc( renderSystem->GetWidth() * renderSystem->GetHeight(), TAG_RENDER_TOOLS );
qglReadPixels( 0, 0, renderSystem->GetWidth(), renderSystem->GetHeight(), GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencilReadback );
count = 0;
for ( i = 0; i < renderSystem->GetWidth() * renderSystem->GetHeight(); i++ ) {
count += stencilReadback[i];
}
R_StaticFree( stencilReadback );
// print some stats (not supposed to do from back end in SMP...)
common->Printf( "overdraw: %5.1f\n", (float)count/(renderSystem->GetWidth() * renderSystem->GetHeight()) );
}
static void RB_TakeScreenshot( int x, int y, int width, int height, const char* fileName, bool IsJpeg ) {
byte* buffer = new byte[ width * height * 3 ];
qglReadPixels( x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer );
// gamma correct
if ( tr.overbrightBits > 0 && glConfig.deviceSupportsGamma ) {
R_GammaCorrect( buffer, width * height * 3 );
}
if ( IsJpeg ) {
FS_WriteFile( fileName, buffer, 1 ); // create path
R_SaveJPG( fileName, 95, width, height, buffer );
} else {
R_SaveTGA( fileName, buffer, width, height, false );
}
delete[] buffer;
}
byte* RB_ReadPixels(int x, int y, int width, int height, size_t* offset, int* padlen) {
byte* buffer, *bufstart;
int padwidth, linelen;
GLint packAlign;
qglGetIntegerv(GL_PACK_ALIGNMENT, &packAlign);
linelen = width * 3;
padwidth = PAD(linelen, packAlign);
// Allocate a few more bytes so that we can choose an alignment we like
buffer = ri.Hunk_AllocateTempMemory(padwidth * height + *offset + packAlign - 1);
bufstart = PADP((intptr_t) buffer + *offset, packAlign);
qglReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, bufstart);
*offset = bufstart - buffer;
*padlen = padwidth - linelen;
return buffer;
}
byte *RB_ReadZBuffer(int x, int y, int width, int height, int *padlen)
{
byte *buffer, *bufstart;
int padwidth, linelen;
GLint packAlign;
qglGetIntegerv(GL_PACK_ALIGNMENT, &packAlign);
linelen = width;
padwidth = PAD(linelen, packAlign);
// Allocate a few more bytes so that we can choose an alignment we like
buffer = ri.Hunk_AllocateTempMemory(padwidth * height + packAlign - 1);
bufstart = PADP(( intptr_t ) buffer, packAlign);
qglDepthRange(0.0f, 1.0f);
qglReadPixels(x, y, width, height, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, bufstart);
*padlen = padwidth - linelen;
return buffer;
}
/*
===================
RB_ShowDepthBuffer
Draw the depth buffer as colors
===================
*/
static void RB_ShowDepthBuffer() {
void *depthReadback;
if ( !r_showDepth.GetBool() ) {
return;
}
qglPushMatrix();
qglLoadIdentity();
qglMatrixMode( GL_PROJECTION );
qglPushMatrix();
qglLoadIdentity();
qglOrtho( 0, 1, 0, 1, -1, 1 );
qglRasterPos2f( 0, 0 );
qglPopMatrix();
qglMatrixMode( GL_MODELVIEW );
qglPopMatrix();
GL_State( GLS_DEPTHFUNC_ALWAYS );
GL_Color( 1, 1, 1 );
globalImages->BindNull();
depthReadback = R_StaticAlloc( renderSystem->GetWidth() * renderSystem->GetHeight()*4, TAG_RENDER_TOOLS );
memset( depthReadback, 0, renderSystem->GetWidth() * renderSystem->GetHeight()*4 );
qglReadPixels( 0, 0, renderSystem->GetWidth(), renderSystem->GetHeight(), GL_DEPTH_COMPONENT , GL_FLOAT, depthReadback );
#if 0
for ( i = 0; i < renderSystem->GetWidth() * renderSystem->GetHeight(); i++ ) {
((byte *)depthReadback)[i*4] =
((byte *)depthReadback)[i*4+1] =
((byte *)depthReadback)[i*4+2] = 255 * ((float *)depthReadback)[i];
((byte *)depthReadback)[i*4+3] = 1;
}
#endif
qglDrawPixels( renderSystem->GetWidth(), renderSystem->GetHeight(), GL_RGBA , GL_UNSIGNED_BYTE, depthReadback );
R_StaticFree( depthReadback );
}
/*
==============
idRenderSystemLocal::CaptureRenderToFile
==============
*/
void idRenderSystemLocal::CaptureRenderToFile( const char *fileName, bool fixAlpha ) {
if ( !R_IsInitialized() ) {
return;
}
idScreenRect & rc = renderCrops[currentRenderCrop];
guiModel->EmitFullScreen();
guiModel->Clear();
RenderCommandBuffers( frameData->cmdHead );
if ( !vr->useFBO ) // koz
{
glReadBuffer( GL_BACK );
}
// include extra space for OpenGL padding to word boundaries
int c = ( rc.GetWidth() + 3 ) * rc.GetHeight();
byte *data = (byte *)R_StaticAlloc( c * 3 );
qglReadPixels( rc.x1, rc.y1, rc.GetWidth(), rc.GetHeight(), GL_RGB, GL_UNSIGNED_BYTE, data );
byte *data2 = (byte *)R_StaticAlloc( c * 4 );
for ( int i = 0 ; i < c ; i++ ) {
data2[ i * 4 ] = data[ i * 3 ];
data2[ i * 4 + 1 ] = data[ i * 3 + 1 ];
data2[ i * 4 + 2 ] = data[ i * 3 + 2 ];
data2[ i * 4 + 3 ] = 0xff;
}
R_WriteTGA( fileName, data2, rc.GetWidth(), rc.GetHeight(), true );
R_StaticFree( data );
R_StaticFree( data2 );
}
/*
==================
RB_TakeVideoFrameCmd
==================
*/
const void *RB_TakeVideoFrameCmd( const void *data )
{
const videoFrameCommand_t *cmd;
int frameSize;
int i;
cmd = (const videoFrameCommand_t *)data;
qglReadPixels( 0, 0, cmd->width, cmd->height, GL_RGBA,
GL_UNSIGNED_BYTE, cmd->captureBuffer );
// gamma correct
if( ( tr.overbrightBits > 0 ) && glConfig.deviceSupportsGamma )
R_GammaCorrect( cmd->captureBuffer, cmd->width * cmd->height * 4 );
if( cmd->motionJpeg )
{
frameSize = SaveJPGToBuffer( cmd->encodeBuffer, 95,
cmd->width, cmd->height, cmd->captureBuffer );
}
else
{
frameSize = cmd->width * cmd->height * 4;
// Vertically flip the image
for( i = 0; i < cmd->height; i++ )
{
Com_Memcpy( &cmd->encodeBuffer[ i * ( cmd->width * 4 ) ],
&cmd->captureBuffer[ ( cmd->height - i - 1 ) * ( cmd->width * 4 ) ],
cmd->width * 4 );
}
}
ri.CL_WriteAVIVideoFrame( cmd->encodeBuffer, frameSize );
return (const void *)(cmd + 1);
}
/*
==================
RB_TakeVideoFrameCmd
==================
*/
const void *RB_TakeVideoFrameCmd( const void *data )
{
const videoFrameCommand_t *cmd;
int frameSize;
int i;
cmd = (const videoFrameCommand_t *)data;
qglReadPixels( 0, 0, cmd->width, cmd->height, GL_RGBA,
GL_UNSIGNED_BYTE, cmd->captureBuffer );
// gamma correct
if( glConfig.deviceSupportsGamma )
R_GammaCorrect( cmd->captureBuffer, cmd->width * cmd->height * 4 );
if( cmd->motionJpeg )
{
frameSize = SaveJPGToBuffer( cmd->encodeBuffer, 90,
cmd->width, cmd->height, cmd->captureBuffer );
ri.CL_WriteAVIVideoFrame( cmd->encodeBuffer, frameSize );
}
else
{
frameSize = cmd->width * cmd->height;
for( i = 0; i < frameSize; i++) // Pack to 24bpp and swap R and B
{
cmd->encodeBuffer[ i*3 ] = cmd->captureBuffer[ i*4 + 2 ];
cmd->encodeBuffer[ i*3 + 1 ] = cmd->captureBuffer[ i*4 + 1 ];
cmd->encodeBuffer[ i*3 + 2 ] = cmd->captureBuffer[ i*4 ];
}
ri.CL_WriteAVIVideoFrame( cmd->encodeBuffer, frameSize * 3 );
}
return (const void *)(cmd + 1);
}
/*
===================
RB_ScanStencilBuffer
Debugging tool to see what values are in the stencil buffer
===================
*/
void RB_ScanStencilBuffer() {
int counts[256];
int i;
byte *stencilReadback;
memset( counts, 0, sizeof( counts ) );
stencilReadback = (byte *)R_StaticAlloc( renderSystem->GetWidth() * renderSystem->GetHeight(), TAG_RENDER_TOOLS );
qglReadPixels( 0, 0, renderSystem->GetWidth(), renderSystem->GetHeight(), GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, stencilReadback );
for ( i = 0; i < renderSystem->GetWidth() * renderSystem->GetHeight(); i++ ) {
counts[ stencilReadback[i] ]++;
}
R_StaticFree( stencilReadback );
// print some stats (not supposed to do from back end in SMP...)
common->Printf( "stencil values:\n" );
for ( i = 0; i < 255; i++ ) {
if ( counts[i] ) {
common->Printf( "%i: %i\n", i, counts[i] );
}
}
}