#include "r_gl.h"
#include "r_local.h"
#include "r_program.h"
#include "r_sphere.h"
#include "r_draw.h"
#include "r_font.h"
#include "r_light.h"
#include "r_lightmap.h"
#include "r_grass.h"
#include "r_weather.h"
#include "r_main.h"
#include "r_geoscape.h"
#include "r_misc.h"
#include "r_error.h"
#include "../../common/tracing.h"
#include "../ui/ui_windows.h"
#include "../../ports/system.h"
#include "../client.h"

Macros
#define	QGL_EXTERN

#define	R_CheckGLVersion(max, min) (r_config.glVersionMajor > max \|\| (r_config.glVersionMajor == max && r_config.glVersionMinor >= min))

#define	INTEL_TEXTURE_RESOLUTION 1024

Functions
static void	R_PrintInfo (const char pre, const char msg)

static void	R_Strings_f (void)
	Prints some OpenGL strings. More...

void	R_SetupFrustum (void)

static void	R_Clear (void)
	Clears the screens color and depth buffer. More...

static void	R_ClearScene (void)

void	R_BeginFrame (void)

void	R_RenderFrame (void)

void	R_EndFrame (void)

static bool	R_CvarCheckMaxLightmap (cvar_t *cvar)

static bool	R_CvarCheckDynamicLights (cvar_t *cvar)

static bool	R_CvarPrograms (cvar_t *cvar)

static bool	R_CvarGLSLVersionCheck (cvar_t *cvar)
	Callback that is called when the r_glsl_version cvar is changed,. More...

static bool	R_CvarPostProcess (cvar_t *cvar)

static bool	R_CvarCheckMultisample (cvar_t *cvar)

static bool	R_CvarCheckWeather (cvar_t *cvar)

static void	R_UpdateWeather (const char cvarName, const char oldValue, const char newValue, void data)

static void	R_RegisterSystemVars (void)

static void	R_RegisterImageVars (void)

static void	R_UpdateVidDef (const viddefContext_t *context)

bool	R_SetMode (void)

static uintptr_t	R_GetProcAddress (const char *functionName)

static uintptr_t	R_GetProcAddressExt (const char *functionName)

static bool	R_CheckExtension (const char *extension)
	Checks for an OpenGL extension that was announced via the OpenGL ext string. If the given extension string includes a placeholder (###), several types are checked. Those from the ARB, those that official extensions (EXT), and those from OpenGL ES (OES) More...

static void	R_InitExtensions (void)
	Check and load all needed and supported opengl extensions. More...

static void	R_EnforceVersion (void)
	We need at least opengl version 1.2.1. More...

static bool	R_SearchForVendor (const char *vendor)
	Searches vendor and renderer GL strings for the given vendor id. More...

static void	R_VerifyDriver (void)
	Checks whether we have hardware acceleration. More...

bool	R_Init (void)

void	R_Shutdown (void)

Variables
rendererData_t	refdef

rconfig_t	r_config

rstate_t	r_state

rlocals_t	r_locals

image_t *	r_noTexture

image_t *	r_warpTexture

image_t *	r_dummyTexture

Weather	r_battlescapeWeather

static cvar_t *	r_maxtexres

cvar_t *	r_weather

cvar_t *	r_drawentities

cvar_t *	r_drawworld

cvar_t *	r_nocull

cvar_t *	r_isometric

cvar_t *	r_anisotropic

cvar_t *	r_texture_lod

cvar_t *	r_screenshot_format

cvar_t *	r_screenshot_jpeg_quality

cvar_t *	r_lightmap

cvar_t *	r_debug_normals

cvar_t *	r_debug_tangents

cvar_t *	r_debug_lights

static cvar_t *	r_deluxemap

cvar_t *	r_ext_texture_compression

static cvar_t *	r_ext_s3tc_compression

static cvar_t *	r_ext_nonpoweroftwo

static cvar_t *	r_intel_hack

static cvar_t *	r_texturemode

static cvar_t *	r_texturealphamode

static cvar_t *	r_texturesolidmode

cvar_t *	r_materials

cvar_t *	r_overridematerial

cvar_t *	r_default_specular

cvar_t *	r_default_hardness

cvar_t *	r_checkerror

cvar_t *	r_drawbuffer

cvar_t *	r_driver

cvar_t *	r_shadows

cvar_t *	r_stencilshadows

cvar_t *	r_swapinterval

cvar_t *	r_multisample

cvar_t *	r_wire

cvar_t *	r_showbox

cvar_t *	r_threads

cvar_t *	r_vertexbuffers

cvar_t *	r_warp

cvar_t *	r_dynamic_lights

cvar_t *	r_programs

cvar_t *	r_glsl_version
	The GLSL version being used (not necessarily a supported version by the OpenGL implementation). Stored as a c-string and integer. More...

cvar_t *	r_postprocess

cvar_t *	r_maxlightmap

cvar_t *	r_shownormals

cvar_t *	r_bumpmap

cvar_t *	r_specular

cvar_t *	r_hardness

cvar_t *	r_parallax

cvar_t *	r_fog

cvar_t *	r_flares

cvar_t *	r_coronas

cvar_t *	r_drawtags

static const cmdList_t	r_commands []

Macro Definition Documentation

#define INTEL_TEXTURE_RESOLUTION 1024

Definition at line 1217 of file r_main.cpp.

Referenced by R_VerifyDriver().

#define QGL_EXTERN

Definition at line 25 of file r_main.cpp.

#define R_CheckGLVersion	(	max,
		min
	)	(r_config.glVersionMajor > max \|\| (r_config.glVersionMajor == max && r_config.glVersionMinor >= min))

Definition at line 832 of file r_main.cpp.

Referenced by R_InitExtensions().

Function Documentation

void R_BeginFrame ( void )

See also: R_RenderFrame; R_EndFrame

Definition at line 220 of file r_main.cpp.

References Com_IsRenderModified(), Com_Printf(), Com_SetRenderModified(), Cvar_ClearVars(), Cvar_PendingCvars(), CVAR_R_MASK, CVAR_R_PROGRAMS, Cvar_SetValue(), rlocals_s::frame, cvar_s::integer, rconfig_t::maxAnisotropic, cvar_s::modified, Q_strcasecmp, R_CheckError, R_Clear(), R_EnableMultisample(), R_InitThreads(), R_RestartPrograms_f(), R_Setup2D(), R_ShutdownThreads(), R_TextureAlphaMode(), R_TextureMode(), R_TextureSolidMode(), and cvar_s::string.

Referenced by SCR_DrawLoading(), SCR_DrawLoadingScreen(), SCR_TimeRefresh_f(), and SCR_UpdateScreen().

static bool R_CheckExtension ( const char * extension )

inlinestatic

Checks for an OpenGL extension that was announced via the OpenGL ext string. If the given extension string includes a placeholder (###), several types are checked. Those from the ARB, those that official extensions (EXT), and those from OpenGL ES (OES)

Parameters

extension The extension string to check. Might also contain placeholders. E.g. "GL_###_framebuffer_object", GL_ARB_framebuffer_object

Returns: true if the extension was announced by the OpenGL driver, false otherwise.

Definition at line 787 of file r_main.cpp.

References Com_Printf(), rconfig_t::extensionsString, i, length, lengthof, and Q_strreplace().

Referenced by R_InitExtensions().

static void R_Clear ( void )

inlinestatic

Clears the screens color and depth buffer.

Definition at line 192 of file r_main.cpp.

References f, cvar_s::integer, and R_CheckError.

Referenced by R_BeginFrame().

static void R_ClearScene ( void )

inlinestatic

See also: CL_ClearState

Definition at line 209 of file r_main.cpp.

References rendererData_t::numCoronas, rendererData_t::numDynamicLights, rendererData_t::numEntities, and R_ClearBspRRefs().

Referenced by R_EndFrame().

static bool R_CvarCheckDynamicLights ( cvar_t * cvar )

static

Definition at line 507 of file r_main.cpp.

References Cvar_AssertValue(), MAX_ENTITY_LIGHTS, and rconfig_t::maxLights.

Referenced by R_InitExtensions().

static bool R_CvarCheckMaxLightmap ( cvar_t * cvar )

static

Definition at line 488 of file r_main.cpp.

References Com_Printf(), Cvar_AssertValue(), Cvar_SetValue(), cvar_s::integer, LIGHTMAP_DEFAULT_PAGE_SIZE, LIGHTMAP_MAX_PAGE_SIZE, rconfig_t::maxTextureSize, cvar_s::name, and Q_IsPowerOfTwo().

Referenced by R_RegisterSystemVars().

static bool R_CvarCheckMultisample ( cvar_t * cvar )

static

Definition at line 556 of file r_main.cpp.

References Cvar_AssertValue().

Referenced by R_RegisterSystemVars().

static bool R_CvarCheckWeather ( cvar_t * cvar )

static

Definition at line 561 of file r_main.cpp.

References Cvar_AssertValue(), Weather::WEATHER_CLEAN, and Weather::WEATHER_MAX.

Referenced by R_RegisterSystemVars().

static bool R_CvarGLSLVersionCheck ( cvar_t * cvar )

static

Callback that is called when the r_glsl_version cvar is changed,.

Definition at line 530 of file r_main.cpp.

References Cvar_Reset(), rconfig_t::glslVersionMajor, rconfig_t::glslVersionMinor, and cvar_s::string.

Referenced by R_InitExtensions().

static bool R_CvarPostProcess ( cvar_t * cvar )

static

Definition at line 547 of file r_main.cpp.

References Cvar_AssertValue(), Cvar_SetValue(), rconfig_t::drawBuffers, rconfig_t::frameBufferObject, and cvar_s::name.

Referenced by R_InitExtensions().

static bool R_CvarPrograms ( cvar_t * cvar )

static

Definition at line 517 of file r_main.cpp.

References Cvar_AssertValue(), Cvar_SetValue(), and cvar_s::name.

Referenced by R_InitExtensions().

void R_EndFrame ( void )

See also: R_RenderFrame; R_BeginFrame

Definition at line 443 of file r_main.cpp.

References cls, cvar_s::integer, cvar_s::modified, R_ClearScene(), R_Color(), R_DrawChars(), R_EnableBlend(), R_EnableMultisample(), cvar_s::value, vid_gamma, and vid_ignoregamma.

Referenced by SCR_DrawLoading(), SCR_DrawLoadingScreen(), SCR_TimeRefresh_f(), and SCR_UpdateScreen().

static void R_EnforceVersion ( void )

inlinestatic

We need at least opengl version 1.2.1.

Definition at line 1181 of file r_main.cpp.

References Com_Error(), ERR_FATAL, and rconfig_t::versionString.

Referenced by R_Init().

static uintptr_t R_GetProcAddress ( const char * functionName )

inlinestatic

Note: SDL_GL_GetProcAddress returns a void*, which is not on all supported platforms the same size as a function pointer. This wrapper is a workaround until SDL is fixed. It is known to produce the "warning: assignment from incompatible pointer type"

Definition at line 752 of file r_main.cpp.

Referenced by R_GetProcAddressExt(), and R_InitExtensions().

static uintptr_t R_GetProcAddressExt ( const char * functionName )

static

Definition at line 757 of file r_main.cpp.

References Com_Printf(), i, length, lengthof, Q_strreplace(), and R_GetProcAddress().

Referenced by R_InitExtensions().

bool R_Init ( void )

static void R_InitExtensions ( void )

static

Check and load all needed and supported opengl extensions.

See also: R_Init

Definition at line 838 of file r_main.cpp.

References rconfig_t::anisotropic, Com_Error(), Com_Printf(), CVAR_ARCHIVE, Cvar_Get(), CVAR_R_PROGRAMS, Cvar_SetCheckFunction(), Cvar_SetValue(), rconfig_t::drawBuffers, ERR_FATAL, rconfig_t::extensionsString, rconfig_t::frameBufferObject, GAME_TITLE, rconfig_t::gl_compressed_alpha_format, rconfig_t::gl_compressed_solid_format, GL_MAX_FRAGMENT_UNIFORM_VECTORS, GL_MAX_RENDERBUFFER_SIZE_EXT, GL_MAX_TEXTURE_COORDS, GL_MAX_VARYING_VECTORS, GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, GL_MAX_VERTEX_UNIFORM_VECTORS, GL_SHADING_LANGUAGE_VERSION, glGetError(), rconfig_t::glslVersionMajor, rconfig_t::glslVersionMinor, rconfig_t::glVersionMajor, rconfig_t::glVersionMinor, cvar_s::integer, rconfig_t::lod_bias, rconfig_t::lodDir, rconfig_t::maxAnisotropic, rconfig_t::maxColorAttachments, rconfig_t::maxDrawBuffers, rconfig_t::maxLights, rconfig_t::maxRenderbufferSize, rconfig_t::maxTextureCoords, rconfig_t::maxTextureSize, rconfig_t::maxTextureUnits, rconfig_t::maxVertexAttribs, rconfig_t::maxVertexBufferSize, rconfig_t::maxVertexTextureImageUnits, cvar_s::modified, rconfig_t::nonPowerOfTwo, Q_strncpyz(), R_CheckError, R_CheckExtension(), R_CheckGLVersion, R_CvarCheckDynamicLights(), R_CvarGLSLVersionCheck(), R_CvarPostProcess(), R_CvarPrograms(), R_GetProcAddress(), R_GetProcAddressExt(), R_ImageExists(), R_TranslateError(), and rconfig_t::versionString.

Referenced by R_Init().

static void R_PrintInfo	(	const char *	pre,
		const char *	msg
	)

static

Definition at line 112 of file r_main.cpp.

References Com_Printf(), i, length, and Q_strncpyz().

Referenced by R_Strings_f().

static void R_RegisterImageVars ( void )

static

Note: image cvars

Definition at line 642 of file r_main.cpp.

Referenced by R_Init().

static void R_RegisterSystemVars ( void )

static

Definition at line 572 of file r_main.cpp.

References Cmd_TableAddList(), CVAR_ARCHIVE, Cvar_Get(), CVAR_LATCH, CVAR_R_CONTEXT, CVAR_R_IMAGES, CVAR_R_PROGRAMS, Cvar_RegisterChangeListener(), Cvar_SetCheckFunction(), cvar_s::modified, R_CvarCheckMaxLightmap(), R_CvarCheckMultisample(), R_CvarCheckWeather(), r_particles, R_UpdateDefaultMaterial(), and R_UpdateWeather().

Referenced by R_Init().

void R_RenderFrame ( void )

See also: R_BeginFrame; R_EndFrame

Definition at line 298 of file r_main.cpp.

References model_s::bsp, cl, light_s::color, rendererData_t::dynamicLights, i, cvar_s::integer, rendererData_t::numDynamicLights, rendererData_t::numStaticLights, light_s::origin, R_AddBspRRef(), R_AddCorona(), r_blend_mesh_entities, R_CheckError, R_Color(), R_DrawBlendMeshEntities(), R_DrawBloom(), R_DrawBoundingBoxes(), R_DrawBspNormals(), R_DrawCoronas(), R_DrawEntityEffects(), R_DrawGrass(), R_DrawNullEntities(), R_DrawOpaqueMeshEntities(), R_DrawParticles(), R_DrawSpecialEntities(), R_EnableBlend(), R_EnableFog(), R_GetEntityLists(), R_GetLevelSurfaceLists(), r_mapTiles, r_null_entities, r_numMapTiles, r_opaque_mesh_entities, R_RenderAlphaTestBspRRefs(), R_RenderBlendBspRRefs(), R_RenderBlendWarpBspRRefs(), R_RenderFlareBspRRefs(), R_RenderMaterialBspRRefs(), R_RenderOpaqueBspRRefs(), R_RenderOpaqueWarpBspRRefs(), R_ResetArrayState(), R_Setup2D(), R_Setup3D(), R_SetupFrustum(), r_special_entities, r_threadstate, R_UpdateSustainedLights(), light_s::radius, RDF_NOWORLDMODEL, Weather::render(), rendererData_t::rendererFlags, renderer_threadstate_s::state, rendererData_t::staticLights, Sys_Sleep(), THREAD_CLIENT, THREAD_RENDERER, clientBattleScape_s::time, Weather::update(), and vec3_origin.

Referenced by CL_ViewRender(), SCR_TimeRefresh_f(), and SEQ_Render3D().

static bool R_SearchForVendor ( const char * vendor )

static

Searches vendor and renderer GL strings for the given vendor id.

Definition at line 1211 of file r_main.cpp.

References Q_stristr(), rconfig_t::rendererString, and rconfig_t::vendorString.

Referenced by R_VerifyDriver().

bool R_SetMode ( void )

Definition at line 694 of file r_main.cpp.

References Com_Printf(), viddef_t::context, Cvar_Set(), viddefContext_t::fullscreen, viddefContext_t::height, vidmode_s::height, cvar_s::integer, viddefContext_t::mode, cvar_s::modified, viddefContext_t::multisample, R_InitFBObjects(), R_InitGraphics(), R_ShutdownFBObjects(), R_UpdateVidDef(), viddef_t::stretch, viddefContext_t::swapinterval, UI_InvalidateStack(), vid_fullscreen, VID_GetModeInfo(), vid_mode, vid_stretch, viddef, viddefContext_t::width, and vidmode_s::width.

Referenced by Rimp_Init().

void R_SetupFrustum ( void )

Definition at line 137 of file r_main.cpp.

References AngleVectors(), cBspPlane_s::dist, DotProduct, rendererData_t::fieldOfViewX, rendererData_t::fieldOfViewY, rlocals_s::forward, rlocals_s::frustum, i, cvar_s::integer, cBspPlane_s::normal, PLANE_ANYZ, R_CheckError, RDF_NOWORLDMODEL, rendererData_t::rendererFlags, rlocals_s::right, RotatePointAroundVector(), cBspPlane_s::type, rlocals_s::up, VectorScale, viddef, rendererData_t::viewAngles, viddef_t::viewHeight, rendererData_t::viewOrigin, viddef_t::viewWidth, viddef_t::x, and viddef_t::y.

Referenced by R_RenderFrame(), and R_RunThread().

void R_Shutdown ( void )

See also: R_Init

Definition at line 1319 of file r_main.cpp.

References Cmd_TableRemoveList(), R_FontShutdown(), R_ModelShutdown(), R_ShutdownFBObjects(), R_ShutdownImages(), R_ShutdownPrograms(), R_ShutdownThreads(), and Rimp_Shutdown().

Referenced by CL_Shutdown(), and VID_Restart_f().

static void R_Strings_f ( void )

static

Prints some OpenGL strings.

Definition at line 129 of file r_main.cpp.

References rconfig_t::extensionsString, R_PrintInfo(), rconfig_t::rendererString, rconfig_t::vendorString, and rconfig_t::versionString.

Referenced by R_Init().

static void R_UpdateVidDef ( const viddefContext_t * context )

static

Update the graphical context according to a valid context. All the system is updated according to this new value (viddef and cvars)

Parameters

context New graphical context

Definition at line 651 of file r_main.cpp.

References viddef_t::context, Cvar_SetValue(), viddefContext_t::fullscreen, viddefContext_t::height, viddefContext_t::mode, cvar_s::modified, viddefContext_t::multisample, viddef_t::rx, viddef_t::ry, viddef_t::stretch, viddefContext_t::swapinterval, vid_fullscreen, vid_mode, VID_NORM_HEIGHT, VID_NORM_WIDTH, vid_stretch, viddef, viddef_t::virtualHeight, viddef_t::virtualWidth, and viddefContext_t::width.

Referenced by R_SetMode().

static void R_UpdateWeather	(	const char *	cvarName,
		const char *	oldValue,
		const char *	newValue,
		void *	data
	)

static

Todo:: Some better way?

Definition at line 566 of file r_main.cpp.

References Weather::changeTo().

Referenced by R_RegisterSystemVars().

static void R_VerifyDriver ( void )

inlinestatic

Checks whether we have hardware acceleration.

Definition at line 1222 of file r_main.cpp.

References Com_Error(), Com_Printf(), Cvar_Set(), Cvar_SetValue(), ERR_FATAL, GLHW_ATI, GLHW_GENERIC, GLHW_INTEL, GLHW_MESA, GLHW_NVIDIA, rconfig_t::hardwareType, cvar_s::integer, INTEL_TEXTURE_RESOLUTION, Q_strcasecmp, and R_SearchForVendor().

Referenced by R_Init().

Variable Documentation

cvar_t* r_anisotropic

Definition at line 64 of file r_main.cpp.

Weather r_battlescapeWeather

Definition at line 55 of file r_main.cpp.

cvar_t* r_bumpmap

Definition at line 103 of file r_main.cpp.

Referenced by R_ArraysMask(), R_EnableBumpmap(), R_SetSurfaceBumpMappingParameters(), and R_UseMaterial().

cvar_t* r_checkerror

Definition at line 84 of file r_main.cpp.

Referenced by R_CheckErrorDebug().

const cmdList_t r_commands[]

static

Initial value:

= {
    {"r_listimages", R_ImageList_f, "Show all loaded images on game console"},
    {"r_listfontcache", R_FontListCache_f, "Show information about font cache"},
    {"r_screenshot", R_ScreenShot_f, "Take a screenshot"},
    {"r_listmodels", R_ModModellist_f, "Show all loaded models on game console"},
    {"r_strings", R_Strings_f, "Print openGL vendor and other strings"},
    {"r_restartprograms", R_RestartPrograms_f, "Reloads the shaders"},
    {nullptr, nullptr, nullptr}
}