/
gl_main.cpp
1666 lines (1398 loc) · 46.4 KB
/
gl_main.cpp
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/** @file gl_main.cpp GL-Graphics Subsystem
* @ingroup gl
*
* @authors Copyright © 2003-2014 Jaakko Keränen <jaakko.keranen@iki.fi>
* @authors Copyright © 2006-2014 Daniel Swanson <danij@dengine.net>
* @authors Copyright © 2006 Jamie Jones <jamie_jones_au@yahoo.com.au>
*
* @par License
* GPL: http://www.gnu.org/licenses/gpl.html
*
* <small>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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA</small>
*/
#ifdef UNIX
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#endif
#include "de_base.h"
#include "gl/gl_main.h"
#include <de/concurrency.h>
#include <de/App>
#include <de/Config>
#include <de/DisplayMode>
#include <de/GLInfo>
#include <de/GLState>
#include <doomsday/console/cmd.h>
#include <doomsday/console/var.h>
#include <doomsday/defs/mapinfo.h>
#include <doomsday/filesys/fs_main.h>
#include <doomsday/resource/colorpalettes.h>
#include "clientapp.h"
#include "sys_system.h" // novideo
#include "world/map.h"
#include "world/p_object.h"
#include "gl/gl_tex.h"
#include "gl/gl_texmanager.h"
#include "gl/texturecontent.h"
#include "resource/hq2x.h"
#include "MaterialAnimator"
#include "MaterialVariantSpec"
#include "Texture"
#include "api_render.h"
#include "render/rend_main.h"
#include "render/r_main.h"
#include "render/cameralensfx.h"
#include "render/rend_font.h"
#include "render/rend_model.h"
#include "render/rend_particle.h"
#include "render/vr.h"
#include "r_util.h"
#include "ui/ui_main.h"
#include "ui/clientwindowsystem.h"
using namespace de;
extern dint maxnumnodes;
extern dd_bool fillOutlines;
dint numTexUnits = 1;
dd_bool envModAdd; ///< TexEnv: modulate and add is available.
dint test3dfx;
dint r_detail = true; ///< Draw detail textures (if available).
dfloat vid_gamma = 1.0f, vid_bright, vid_contrast = 1.0f;
dfloat glNearClip, glFarClip;
static dd_bool initGLOk;
static dd_bool initFullGLOk;
static dd_bool gamma_support;
static dfloat oldgamma, oldcontrast, oldbright;
static dint fogModeDefault;
static viewport_t currentView;
static inline ResourceSystem &resSys()
{
return App_ResourceSystem();
}
dd_bool GL_IsInited()
{
return initGLOk;
}
dd_bool GL_IsFullyInited()
{
return initFullGLOk;
}
#if defined(WIN32) || defined(MACOSX)
void GL_AssertContextActive()
{
#ifdef WIN32
DENG2_ASSERT(wglGetCurrentContext() != 0);
#else
DENG2_ASSERT(CGLGetCurrentContext() != 0);
#endif
}
#endif
void GL_GetGammaRamp(DisplayColorTransfer *ramp)
{
if(!gamma_support) return;
DisplayMode_GetColorTransfer(ramp);
}
void GL_SetGammaRamp(DisplayColorTransfer const *ramp)
{
if(!gamma_support) return;
DisplayMode_SetColorTransfer(ramp);
}
/**
* Calculate a gamma ramp and write the result to the location pointed to.
*
* @todo Allow for finer control of the curves (separate red, green, blue).
*
* @param ramp Ptr to the ramp table to write to. Must point to a ushort[768] area of memory.
* @param gamma Non-linear factor (curvature; >1.0 multiplies).
* @param contrast Steepness.
* @param bright Brightness, uniform offset.
*/
void GL_MakeGammaRamp(ushort *ramp, dfloat gamma, dfloat contrast, dfloat bright)
{
DENG2_ASSERT(ramp);
ddouble ideal[256]; // After processing clamped to unsigned short.
// Don't allow stupid values.
if(contrast < 0.1f)
contrast = 0.1f;
if(bright > 0.8f) bright = 0.8f;
if(bright < -0.8f) bright = -0.8f;
// Init the ramp as a line with the steepness defined by contrast.
for(dint i = 0; i < 256; ++i)
{
ideal[i] = i * contrast - (contrast - 1) * 127;
}
// Apply the gamma curve.
if(gamma != 1)
{
if(gamma <= 0.1f) gamma = 0.1f;
ddouble norm = pow(255, 1 / ddouble( gamma ) - 1); // Normalizing factor.
for(dint i = 0; i < 256; ++i)
{
ideal[i] = pow(ideal[i], 1 / ddouble( gamma )) / norm;
}
}
// The last step is to add the brightness offset.
for(dint i = 0; i < 256; ++i)
{
ideal[i] += bright * 128;
}
// Clamp it and write the ramp table.
for(dint i = 0; i < 256; ++i)
{
ideal[i] *= 0x100; // Byte => word
if(ideal[i] < 0) ideal[i] = 0;
if(ideal[i] > 0xffff) ideal[i] = 0xffff;
ramp[i] = ramp[i + 256] = ramp[i + 512] = (dushort) ideal[i];
}
}
/**
* Updates the gamma ramp based on vid_gamma, vid_contrast and vid_bright.
*/
void GL_SetGamma()
{
DisplayColorTransfer myramp;
oldgamma = vid_gamma;
oldcontrast = vid_contrast;
oldbright = vid_bright;
GL_MakeGammaRamp(myramp.table, vid_gamma, vid_contrast, vid_bright);
GL_SetGammaRamp(&myramp);
}
void GL_DoUpdate()
{
if(ClientApp::vr().mode() == VRConfig::OculusRift) return;
// Check for color adjustment changes.
if(oldgamma != vid_gamma || oldcontrast != vid_contrast || oldbright != vid_bright)
{
GL_SetGamma();
}
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
// Wait until the right time to show the frame so that the realized
// frame rate is exactly right.
glFlush();
DD_WaitForOptimalUpdateTime();
// Blit screen to video.
ClientWindow::main().swapBuffers();
}
static void printConfiguration()
{
LOG_GL_VERBOSE(_E(b) "Render configuration:");
LOG_GL_VERBOSE(" Multisampling: %b") << GL_state.features.multisample;
if(GL_state.features.multisample)
{
LOG_GL_VERBOSE(" Multisampling format: %i") << GL_state.multisampleFormat;
}
LOG_GL_VERBOSE(" Multitexturing: %s") << (numTexUnits > 1? (envModAdd? "full" : "partial") : "not available");
LOG_GL_VERBOSE(" Texture Anisotropy: %s") << (GL_state.features.texFilterAniso? "variable" : "fixed");
LOG_GL_VERBOSE(" Texture Compression: %b") << GL_state.features.texCompression;
LOG_GL_VERBOSE(" Texture NPOT: %b") << GL_state.features.texNonPowTwo;
}
void GL_EarlyInit()
{
if(novideo) return;
if(initGLOk) return; // Already initialized.
LOG_GL_VERBOSE("Initializing Render subsystem...");
ClientApp::renderSystem().glInit();
gamma_support = !CommandLine_Check("-noramp");
// We are simple people; two texture units is enough.
numTexUnits = de::min(GLInfo::limits().maxTexUnits, MAX_TEX_UNITS);
envModAdd = (GLInfo::extensions().NV_texture_env_combine4 ||
GLInfo::extensions().ATI_texture_env_combine3);
GL_InitDeferredTask();
// Model renderer must be initialized early as it may need to configure
// gl-element arrays.
Rend_ModelInit();
// Check the maximum texture size.
if(GLInfo::limits().maxTexSize == 256)
{
LOG_GL_WARNING("Using restricted texture w/h ratio (1:8)");
ratioLimit = 8;
}
if(CommandLine_Check("-outlines"))
{
fillOutlines = false;
LOG_GL_NOTE("Textures have outlines");
}
renderTextures = !CommandLine_Exists("-notex");
printConfiguration();
// Initialize the renderer into a 2D state.
GL_Init2DState();
GL_SetVSync(App::config().getb("window.main.vsync"));
initGLOk = true;
}
void GL_Init()
{
if(novideo) return;
if(!initGLOk)
{
App_Error("GL_Init: GL_EarlyInit has not been done yet.\n");
}
// Set the gamma in accordance with vid-gamma, vid-bright and vid-contrast.
GL_SetGamma();
// Initialize one viewport.
R_SetupDefaultViewWindow(0);
R_SetViewGrid(1, 1);
}
void GL_InitRefresh()
{
if(novideo) return;
GL_InitTextureManager();
initFullGLOk = true;
}
void GL_ShutdownRefresh()
{
initFullGLOk = false;
}
void GL_Shutdown()
{
if(!initGLOk || !ClientWindow::mainExists())
return; // Not yet initialized fully.
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
// We won't be drawing anything further but we don't want to shutdown
// with the previous frame still visible as this can lead to unwanted
// artefacts during video context switches on some displays.
//
// Render a few black frames before we continue.
if(!novideo)
{
dint i = 0;
do
{
glClear(GL_COLOR_BUFFER_BIT);
GL_DoUpdate();
} while(++i < 3);
}
ClientApp::renderSystem().glDeinit();
GL_ShutdownDeferredTask();
FR_Shutdown();
Rend_ModelShutdown();
LensFx_Shutdown();
Rend_Reset();
GL_ShutdownRefresh();
// Shutdown OpenGL.
Sys_GLShutdown();
initGLOk = false;
}
void GL_Init2DState()
{
// The variables.
glNearClip = 5;
glFarClip = 16500;
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
// Here we configure the OpenGL state and set the projection matrix.
//glDisable(GL_CULL_FACE);
//glDisable(GL_DEPTH_TEST);
GLState::current()
.setCull(gl::None)
.setDepthTest(false)
.apply();
//glDisable(GL_TEXTURE_1D);
glDisable(GL_TEXTURE_2D);
glDisable(GL_TEXTURE_CUBE_MAP);
// Default, full area viewport.
//glViewport(0, 0, DENG_WINDOW->width(), DENG_WINDOW->height());
// The projection matrix.
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 320, 200, 0, -1, 1);
// Default state for the white fog is off.
fogParams.usingFog = false;
glDisable(GL_FOG);
glFogi(GL_FOG_MODE, (fogModeDefault == 0 ? GL_LINEAR :
fogModeDefault == 1 ? GL_EXP : GL_EXP2));
glFogf(GL_FOG_START, DEFAULT_FOG_START);
glFogf(GL_FOG_END, DEFAULT_FOG_END);
glFogf(GL_FOG_DENSITY, DEFAULT_FOG_DENSITY);
fogParams.fogColor[0] = DEFAULT_FOG_COLOR_RED;
fogParams.fogColor[1] = DEFAULT_FOG_COLOR_GREEN;
fogParams.fogColor[2] = DEFAULT_FOG_COLOR_BLUE;
fogParams.fogColor[3] = 1;
glFogfv(GL_FOG_COLOR, fogParams.fogColor);
}
void GL_SwitchTo3DState(dd_bool pushState, viewport_t const *port, viewdata_t const *viewData)
{
DENG2_ASSERT(port && viewData);
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
if(pushState)
{
// Push the 2D matrices on the stack.
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
}
//glEnable(GL_CULL_FACE);
//glEnable(GL_DEPTH_TEST);
GLState::current()
.setCull(gl::Back)
.setDepthTest(true)
.apply();
std::memcpy(¤tView, port, sizeof(currentView));
viewpx = port->geometry.topLeft.x + viewData->window.topLeft.x;
viewpy = port->geometry.topLeft.y + viewData->window.topLeft.y;
viewpw = de::min(port->geometry.width(), viewData->window.width());
viewph = de::min(port->geometry.height(), viewData->window.height());
ClientWindow::main().game().glApplyViewport(Rectanglei::fromSize(Vector2i(viewpx, viewpy),
Vector2ui(viewpw, viewph)));
// The 3D projection matrix.
GL_ProjectionMatrix();
}
void GL_Restore2DState(dint step, viewport_t const *port, viewdata_t const *viewData)
{
DENG2_ASSERT(port && viewData);
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
switch(step)
{
case 1: { // After Restore Step 1 normal player sprites are rendered.
dint height = dfloat( port->geometry.width() * viewData->window.height() / viewData->window.width() ) / port->geometry.height() * SCREENHEIGHT;
scalemode_t sm = R_ChooseScaleMode(SCREENWIDTH, SCREENHEIGHT,
port->geometry.width(), port->geometry.height(),
scalemode_t(weaponScaleMode));
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if(SCALEMODE_STRETCH == sm)
{
glOrtho(0, SCREENWIDTH, height, 0, -1, 1);
}
else
{
// Use an orthographic projection in native screenspace. Then
// translate and scale the projection to produce an aspect
// corrected coordinate space at 4:3, aligned vertically to
// the bottom and centered horizontally in the window.
glOrtho(0, port->geometry.width(), port->geometry.height(), 0, -1, 1);
glTranslatef(port->geometry.width()/2, port->geometry.height(), 0);
if(port->geometry.width() >= port->geometry.height())
glScalef(dfloat( port->geometry.height() ) / SCREENHEIGHT,
dfloat( port->geometry.height() ) / SCREENHEIGHT, 1);
else
glScalef(dfloat( port->geometry.width() ) / SCREENWIDTH,
dfloat( port->geometry.width() ) / SCREENWIDTH, 1);
// Special case: viewport height is greater than width.
// Apply an additional scaling factor to prevent player sprites
// looking too small.
if(port->geometry.height() > port->geometry.width())
{
dfloat extraScale = (dfloat(port->geometry.height() * 2) / port->geometry.width()) / 2;
glScalef(extraScale, extraScale, 1);
}
glTranslatef(-(SCREENWIDTH / 2), -SCREENHEIGHT, 0);
glScalef(1, dfloat( SCREENHEIGHT ) / height, 1);
}
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Depth testing must be disabled so that psprite 1 will be drawn
// on top of psprite 0 (Doom plasma rifle fire).
//glDisable(GL_DEPTH_TEST);
GLState::current().setDepthTest(false).apply();
break; }
case 2: // After Restore Step 2 we're back in 2D rendering mode.
ClientWindow::main().game().glApplyViewport(currentView.geometry);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
//glDisable(GL_CULL_FACE);
//glDisable(GL_DEPTH_TEST);
GLState::current()
.setCull(gl::None)
.setDepthTest(false)
.apply();
break;
default:
App_Error("GL_Restore2DState: Invalid value, step = %i.", step);
break;
}
}
Rangef GL_DepthClipRange()
{
return Rangef(glNearClip, glFarClip);
}
Matrix4f GL_GetProjectionMatrix()
{
dfloat const fov = Rend_FieldOfView();
Vector2f const size(viewpw, viewph);
yfov = vrCfg().verticalFieldOfView(fov, size);
return vrCfg().projectionMatrix(Rend_FieldOfView(), size, glNearClip, glFarClip) *
Matrix4f::scale(Vector3f(1, 1, -1));
}
void GL_ProjectionMatrix()
{
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
// Actually shift the player viewpoint
// We'd like to have a left-handed coordinate system.
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(GL_GetProjectionMatrix().values());
}
void GL_SetupFogFromMapInfo(Record const *mapInfo)
{
if(mapInfo)
{
R_SetupFog(mapInfo->getf("fogStart"), mapInfo->getf("fogEnd"),
mapInfo->getf("fogDensity"),
Vector3f(mapInfo->get("fogColor")).data().baseAs<float>());
}
else
{
R_SetupFogDefaults();
}
if(mapInfo && !(mapInfo->geti("flags") & MIF_FOG))
{
GL_UseFog(false);
}
String fadeTable = (mapInfo? mapInfo->gets("fadeTable") : "");
if(!fadeTable.isEmpty())
{
LumpIndex const &lumps = App_FileSystem().nameIndex();
dint lumpNum = lumps.findLast(fadeTable + ".lmp");
if(lumpNum == lumps.findLast("COLORMAP.lmp"))
{
// We don't want fog in this case.
GL_UseFog(false);
}
// Probably fog ... don't use fullbright sprites.
else if(lumpNum == lumps.findLast("FOGMAP.lmp"))
{
GL_UseFog(true);
}
}
}
#undef GL_UseFog
DENG_EXTERN_C void GL_UseFog(dint yes)
{
fogParams.usingFog = yes;
}
void GL_SelectTexUnits(dint count)
{
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
for(dint i = numTexUnits - 1; i >= count; i--)
{
glActiveTexture(GL_TEXTURE0 + i);
glDisable(GL_TEXTURE_2D);
}
// Enable the selected units.
for(dint i = count - 1; i >= 0; i--)
{
if(i >= numTexUnits) continue;
glActiveTexture(GL_TEXTURE0 + i);
glEnable(GL_TEXTURE_2D);
}
}
void GL_TotalReset()
{
if(isDedicated) return;
// Update the secondary title and the game status.
//Rend_ConsoleUpdateTitle();
// Release all texture memory.
resSys().releaseAllGLTextures();
resSys().pruneUnusedTextureSpecs();
GL_LoadLightingSystemTextures();
GL_LoadFlareTextures();
Rend_ParticleLoadSystemTextures();
GL_ReleaseReservedNames();
#if _DEBUG
Z_CheckHeap();
#endif
}
void GL_TotalRestore()
{
if(isDedicated) return;
// Getting back up and running.
GL_ReserveNames();
GL_Init2DState();
// Choose fonts again.
UI_LoadFonts();
//Con_Resize();
// Restore the fog settings.
GL_SetupFogFromMapInfo(App_World().hasMap() ? &App_World().map().mapInfo() : nullptr);
#ifdef DENG2_DEBUG
Z_CheckHeap();
#endif
}
void GL_BlendMode(blendmode_t mode)
{
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
switch(mode)
{
case BM_ZEROALPHA:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::One, gl::Zero)
.apply();
break;
case BM_ADD:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::SrcAlpha, gl::One)
.apply();
break;
case BM_DARK:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::DestColor, gl::OneMinusSrcAlpha)
.apply();
break;
case BM_SUBTRACT:
GLState::current().setBlendOp(gl::Subtract)
.setBlendFunc(gl::One, gl::SrcAlpha)
.apply();
break;
case BM_ALPHA_SUBTRACT:
GLState::current().setBlendOp(gl::Subtract)
.setBlendFunc(gl::SrcAlpha, gl::One)
.apply();
break;
case BM_REVERSE_SUBTRACT:
GLState::current().setBlendOp(gl::ReverseSubtract)
.setBlendFunc(gl::SrcAlpha, gl::One)
.apply();
break;
case BM_MUL:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::Zero, gl::SrcColor)
.apply();
break;
case BM_INVERSE:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::OneMinusDestColor, gl::OneMinusSrcColor)
.apply();
break;
case BM_INVERSE_MUL:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::Zero, gl::OneMinusSrcColor)
.apply();
break;
default:
GLState::current().setBlendOp(gl::Add)
.setBlendFunc(gl::SrcAlpha, gl::OneMinusSrcAlpha)
.apply();
break;
}
}
GLenum GL_Filter(gl::Filter f)
{
switch(f)
{
case gl::Nearest: return GL_NEAREST;
case gl::Linear: return GL_LINEAR;
}
return GL_REPEAT;
}
GLenum GL_Wrap(gl::Wrapping w)
{
switch(w)
{
case gl::Repeat: return GL_REPEAT;
case gl::RepeatMirrored: return GL_MIRRORED_REPEAT;
case gl::ClampToEdge: return GL_CLAMP_TO_EDGE;
}
return GL_REPEAT;
}
dint GL_NumMipmapLevels(dint width, dint height)
{
dint numLevels = 0;
while(width > 1 || height > 1)
{
width /= 2;
height /= 2;
++numLevels;
}
return numLevels;
}
dd_bool GL_OptimalTextureSize(dint width, dint height, dd_bool noStretch, dd_bool isMipMapped,
dint *optWidth, dint *optHeight)
{
DENG2_ASSERT(optWidth && optHeight);
if(GL_state.features.texNonPowTwo && !isMipMapped)
{
*optWidth = width;
*optHeight = height;
}
else if(noStretch)
{
*optWidth = M_CeilPow2(width);
*optHeight = M_CeilPow2(height);
}
else
{
// Determine the most favorable size for the texture.
if(texQuality == TEXQ_BEST)
{
// At the best texture quality *opt, all textures are
// sized *upwards*, so no details are lost. This takes
// more memory, but naturally looks better.
*optWidth = M_CeilPow2(width);
*optHeight = M_CeilPow2(height);
}
else if(texQuality == 0)
{
// At the lowest quality, all textures are sized down to the
// nearest power of 2.
*optWidth = M_FloorPow2(width);
*optHeight = M_FloorPow2(height);
}
else
{
// At the other quality *opts, a weighted rounding is used.
*optWidth = M_WeightPow2(width, 1 - texQuality / dfloat( TEXQ_BEST ));
*optHeight = M_WeightPow2(height, 1 - texQuality / dfloat( TEXQ_BEST ));
}
}
// Hardware limitations may force us to modify the preferred size.
if(*optWidth > GLInfo::limits().maxTexSize)
{
*optWidth = GLInfo::limits().maxTexSize;
noStretch = false;
}
if(*optHeight > GLInfo::limits().maxTexSize)
{
*optHeight = GLInfo::limits().maxTexSize;
noStretch = false;
}
// Some GL drivers seem to have problems with VERY small textures.
if(*optWidth < MINTEXWIDTH)
*optWidth = MINTEXWIDTH;
if(*optHeight < MINTEXHEIGHT)
*optHeight = MINTEXHEIGHT;
if(ratioLimit)
{
if(*optWidth > *optHeight) // Wide texture.
{
if(*optHeight < *optWidth / ratioLimit)
*optHeight = *optWidth / ratioLimit;
}
else // Tall texture.
{
if(*optWidth < *optHeight / ratioLimit)
*optWidth = *optHeight / ratioLimit;
}
}
return noStretch;
}
dint GL_GetTexAnisoMul(dint level)
{
// Should anisotropic filtering be used?
if(!GL_state.features.texFilterAniso)
return 1;
if(level < 0)
{
// Go with the maximum!
return GLInfo::limits().maxTexFilterAniso;
}
// Convert from a DGL aniso-level to a multiplier.
dint mul;
switch(level)
{
default: mul = 1; break;
case 1: mul = 2; break;
case 2: mul = 4; break;
case 3: mul = 8; break;
case 4: mul = 16; break;
}
// Clamp.
return de::min(mul, GLInfo::limits().maxTexFilterAniso);
}
static void uploadContentUnmanaged(texturecontent_t const &content)
{
LOG_AS("uploadContentUnmanaged");
if(novideo) return;
gl::UploadMethod uploadMethod = GL_ChooseUploadMethod(&content);
if(uploadMethod == gl::Immediate)
{
LOGDEV_GL_XVERBOSE("Uploading texture (%i:%ix%i) while not busy! "
"Should have been precached in busy mode?")
<< content.name << content.width << content.height;
}
GL_UploadTextureContent(content, uploadMethod);
}
GLuint GL_NewTextureWithParams(dgltexformat_t format, dint width, dint height,
duint8 const *pixels, dint flags)
{
texturecontent_t c;
GL_InitTextureContent(&c);
c.name = GL_GetReservedTextureName();
c.format = format;
c.width = width;
c.height = height;
c.pixels = pixels;
c.flags = flags;
uploadContentUnmanaged(c);
return c.name;
}
GLuint GL_NewTextureWithParams(dgltexformat_t format, dint width, dint height,
uint8_t const *pixels, dint flags, dint grayMipmap, dint minFilter, dint magFilter,
dint anisoFilter, dint wrapS, dint wrapT)
{
texturecontent_t c;
GL_InitTextureContent(&c);
c.name = GL_GetReservedTextureName();
c.format = format;
c.width = width;
c.height = height;
c.pixels = pixels;
c.flags = flags;
c.grayMipmap = grayMipmap;
c.minFilter = minFilter;
c.magFilter = magFilter;
c.anisoFilter = anisoFilter;
c.wrap[0] = wrapS;
c.wrap[1] = wrapT;
uploadContentUnmanaged(c);
return c.name;
}
static inline MaterialVariantSpec const &uiMaterialSpec(gl::Wrapping wrapS, gl::Wrapping wrapT)
{
return resSys().materialSpec(UiContext, 0, 1, 0, 0, GL_Wrap(wrapS), GL_Wrap(wrapT),
0, 1, 0, false, false, false, false);
}
static inline MaterialVariantSpec const &pspriteMaterialSpec(dint tClass, dint tMap)
{
return resSys().materialSpec(PSpriteContext, 0, 1, tClass, tMap, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE,
0, 1, 0, false, true, true, false);
}
void GL_SetMaterialUI2(Material *material, gl::Wrapping wrapS, gl::Wrapping wrapT)
{
if(!material) return; // @todo we need a "NULL material".
MaterialAnimator &matAnimator = material->getAnimator(uiMaterialSpec(wrapS, wrapT));
// Ensure we have up to date info about the material.
matAnimator.prepare();
GL_BindTexture(matAnimator.texUnit(MaterialAnimator::TU_LAYER0).texture);
}
void GL_SetMaterialUI(Material *mat)
{
GL_SetMaterialUI2(mat, gl::ClampToEdge, gl::ClampToEdge);
}
void GL_SetPSprite(Material *material, dint tClass, dint tMap)
{
if(!material) return;
MaterialAnimator &matAnimator = material->getAnimator(pspriteMaterialSpec(tClass, tMap));
// Ensure we have up to date info about the material.
matAnimator.prepare();
GL_BindTexture(matAnimator.texUnit(MaterialAnimator::TU_LAYER0).texture);
}
void GL_SetRawImage(lumpnum_t lumpNum, gl::Wrapping wrapS, gl::Wrapping wrapT)
{
if(rawtex_t *rawTex = resSys().declareRawTexture(lumpNum))
{
GL_BindTextureUnmanaged(GL_PrepareRawTexture(*rawTex), wrapS, wrapT,
(filterUI ? gl::Linear : gl::Nearest));
}
}
void GL_BindTexture(TextureVariant *vtexture)
{
if(ClientApp::busyRunner().inWorkerThread()) return;
// Ensure we have a prepared texture.
duint glTexName = vtexture? vtexture->prepare() : 0;
if(glTexName == 0)
{
GL_SetNoTexture();
return;
}
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
glBindTexture(GL_TEXTURE_2D, glTexName);
Sys_GLCheckError();
// Apply dynamic adjustments to the GL texture state according to our spec.
TextureVariantSpec const &spec = vtexture->spec();
if(spec.type == TST_GENERAL)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, spec.variant.wrapS);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, spec.variant.wrapT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, spec.variant.glMagFilter());
if(GL_state.features.texFilterAniso)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,
GL_GetTexAnisoMul(spec.variant.logicalAnisoLevel()));
}
}
}
void GL_BindTextureUnmanaged(GLuint glName, gl::Wrapping wrapS, gl::Wrapping wrapT,
gl::Filter filter)
{
if(ClientApp::busyRunner().inWorkerThread()) return;
if(glName == 0)
{
GL_SetNoTexture();
return;
}
DENG_ASSERT_IN_MAIN_THREAD();