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/* Copyright (c) 2001, Stanford University
* All rights reserved.
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#ifndef CR_LIMITS_H
#define CR_LIMITS_H
#include "chromium.h"
#include "cr_version.h"
#include <iprt/cdefs.h>
#ifdef __cplusplus
extern "C" {
#endif
/* glGetString strings */
#define CR_RENDERER "Chromium"
#define CR_VENDOR "Humper"
#define CR_MAX_TEXTURE_UNITS 8
#define CR_MAX_GENERAL_COMBINERS 8
#define CR_MAX_TEXTURE_SIZE 8192
#define CR_MAX_3D_TEXTURE_SIZE 512
#define CR_MAX_CUBE_TEXTURE_SIZE 4096
#define CR_MAX_RECTANGLE_TEXTURE_SIZE 4096
#define CR_MAX_TEXTURE_ANISOTROPY 8.0
#define CR_MAX_LIGHTS 8
#define CR_MAX_CLIP_PLANES 8
#define CR_MAX_PROJECTION_STACK_DEPTH 32
#define CR_MAX_MODELVIEW_STACK_DEPTH 32
#define CR_MAX_TEXTURE_STACK_DEPTH 10
#define CR_MAX_COLOR_STACK_DEPTH 2
#define CR_MAX_ATTRIB_STACK_DEPTH 16
#define CR_MAX_CLIENT_ATTRIB_STACK_DEPTH 16
#define CR_MAX_NAME_STACK_DEPTH 64
#define CR_MAX_ELEMENTS_INDICES 16384
#define CR_MAX_ELEMENTS_VERTICES 16384
#define CR_MAX_EVAL_ORDER 8
#define CR_MAX_LIST_NESTING 64
#define CR_MAX_PIXEL_MAP_TABLE 256
#define CR_MAX_VIEWPORT_DIM 16384
#define CR_SUBPIXEL_BITS 8
#define CR_ALIASED_POINT_SIZE_MIN 1.0
#define CR_ALIASED_POINT_SIZE_MAX 64.0
#define CR_SMOOTH_POINT_SIZE_MIN 1.0
#define CR_SMOOTH_POINT_SIZE_MAX 64.0
#define CR_POINT_SIZE_GRANULARITY 0.5
#define CR_ALIASED_LINE_WIDTH_MIN 1.0
#define CR_ALIASED_LINE_WIDTH_MAX 64.0
#define CR_SMOOTH_LINE_WIDTH_MIN 1.0
#define CR_SMOOTH_LINE_WIDTH_MAX 64.0
#define CR_LINE_WIDTH_GRANULARITY 0.5
#define CR_MAX_VERTEX_ATTRIBS 16
#define CR_MAX_TEXTURE_LOD_BIAS 8.0
#ifdef CR_NV_fragment_program
#define CR_MAX_TEXTURE_COORDS 2
#define CR_MAX_TEXTURE_IMAGE_UNITS 2
#define CR_MAX_FRAGMENT_LOCAL_PARAMS 64
#endif
#ifdef CR_NV_vertex_program
#define CR_MAX_PROGRAM_MATRICES 8
#define CR_MAX_PROGRAM_MATRIX_STACK_DEPTH 4
#endif
#ifdef CR_ARB_fragment_program
#define CR_MAX_FRAGMENT_PROGRAM_INSTRUCTIONS 72
#define CR_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMS 24
#define CR_MAX_FRAGMENT_PROGRAM_ENV_PARAMS 256
#define CR_MAX_FRAGMENT_PROGRAM_TEMPS 16
#define CR_MAX_FRAGMENT_PROGRAM_ATTRIBS 10
#define CR_MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 1
#define CR_MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
#define CR_MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
#define CR_MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS 4
#endif
#ifdef CR_ARB_vertex_program
#define CR_MAX_VERTEX_PROGRAM_INSTRUCTIONS 128
#define CR_MAX_VERTEX_PROGRAM_LOCAL_PARAMS 96
#define CR_MAX_VERTEX_PROGRAM_ENV_PARAMS 256 /* for GL_NV_vertex_program2 */
#define CR_MAX_VERTEX_PROGRAM_TEMPS 12
#define CR_MAX_VERTEX_PROGRAM_ATTRIBS 16
#define CR_MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
#endif
#if defined(CR_ARB_vertex_program) || defined(CR_ARB_fragment_program)
/* These must be the max of the fragment and vertex program limits */
#define CR_MAX_PROGRAM_LOCAL_PARAMS (CR_MAX_VERTEX_PROGRAM_LOCAL_PARAMS > CR_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMS ? CR_MAX_VERTEX_PROGRAM_LOCAL_PARAMS : CR_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMS)
#define CR_MAX_PROGRAM_ENV_PARAMS (CR_MAX_VERTEX_PROGRAM_ENV_PARAMS > CR_MAX_FRAGMENT_PROGRAM_ENV_PARAMS ? CR_MAX_VERTEX_PROGRAM_ENV_PARAMS : CR_MAX_FRAGMENT_PROGRAM_ENV_PARAMS)
#endif
/* Just need these for autogenerated code in state_get.c, etc */
#if defined(CR_ARB_vertex_program) || defined(CR_NV_vertex_program)
#define CR_any_vertex_program 1
#endif
#if defined(CR_ARB_fragment_program) || defined(CR_NV_fragment_program)
#define CR_any_fragment_program 1
#endif
#if defined(CR_any_vertex_program) || defined(CR_any_fragment_program)
#define CR_any_program 1
#endif
/*
* OpenGL's implementation-dependent values (not part of any attribute group).
*/
typedef struct {
GLuint maxTextureUnits;
GLuint maxTextureSize;
GLuint max3DTextureSize; /* OpenGL 1.2 */
#ifdef CR_ARB_texture_cube_map
GLuint maxCubeMapTextureSize;
#endif
GLuint maxLights;
GLuint maxClipPlanes;
GLuint maxProjectionStackDepth;
GLuint maxModelviewStackDepth;
GLuint maxTextureStackDepth;
GLuint maxColorStackDepth; /* OpenGL 1.2 */
GLuint maxAttribStackDepth;
GLuint maxClientAttribStackDepth;
GLuint maxNameStackDepth;
GLuint maxElementsIndices;
GLuint maxElementsVertices;
GLuint maxEvalOrder;
GLuint maxListNesting;
GLuint maxPixelMapTable;
GLint maxViewportDims[2];
GLuint subpixelBits;
GLfloat aliasedPointSizeRange[2];
GLfloat smoothPointSizeRange[2];
GLfloat pointSizeGranularity;
GLfloat aliasedLineWidthRange[2];
GLfloat smoothLineWidthRange[2];
GLfloat lineWidthGranularity;
#ifdef CR_EXT_texture_lod_bias
GLfloat maxTextureLodBias;
#endif
#ifdef CR_EXT_texture_filter_anisotropic
GLfloat maxTextureAnisotropy;
#endif
#ifdef CR_ARB_texture_compression
GLuint numCompressedFormats;
GLenum compressedFormats[10];
#endif
#ifdef CR_NV_register_combiners
GLuint maxGeneralCombiners;
#endif
#ifdef CR_NV_texture_rectangle
GLuint maxRectTextureSize;
#endif
#ifdef CR_NV_fragment_program
GLuint maxTextureCoords;
GLuint maxTextureImageUnits;
/*GLuint maxFragmentProgramLocalParams;*/
#endif
#ifdef CR_NV_vertex_program
GLuint maxProgramMatrixStackDepth;
GLuint maxProgramMatrices;
#endif
#ifdef CR_ARB_fragment_program
GLuint maxFragmentProgramInstructions;
GLuint maxFragmentProgramLocalParams;
GLuint maxFragmentProgramEnvParams;
GLuint maxFragmentProgramTemps;
GLuint maxFragmentProgramAttribs;
GLuint maxFragmentProgramAddressRegs;
GLuint maxFragmentProgramAluInstructions;
GLuint maxFragmentProgramTexInstructions;
GLuint maxFragmentProgramTexIndirections;
#endif
#ifdef CR_ARB_vertex_program
GLuint maxVertexProgramInstructions;
GLuint maxVertexProgramLocalParams;
GLuint maxVertexProgramEnvParams;
GLuint maxVertexProgramTemps;
GLuint maxVertexProgramAttribs;
GLuint maxVertexProgramAddressRegs;
#endif
const GLubyte *extensions;
/* Framebuffer/visual attributes */
GLuint redBits, greenBits, blueBits, alphaBits;
GLuint depthBits, stencilBits, indexBits;
GLuint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
GLuint auxBuffers;
GLboolean rgbaMode;
GLboolean doubleBuffer;
GLboolean stereo;
GLuint sampleBuffers;
GLuint samples;
GLuint level;
} CRLimitsState;
/* Booleans to indicate which OpenGL extensions are supported at runtime.
* XXX might merge this into the above structure someday.
*/
typedef struct {
GLboolean ARB_depth_texture;
GLboolean ARB_fragment_program;
GLboolean ARB_imaging;
GLboolean ARB_multisample;
GLboolean ARB_multitexture;
GLboolean ARB_occlusion_query;
GLboolean ARB_point_parameters;
GLboolean ARB_point_sprite;
GLboolean ARB_shadow;
GLboolean ARB_shadow_ambient;
GLboolean ARB_texture_border_clamp; /* or SGIS_texture_border_clamp */
GLboolean ARB_texture_compression;
GLboolean ARB_texture_cube_map; /* or EXT_texture_cube_map */
GLboolean ARB_texture_env_add; /* standard in OpenGL 1.3 */
GLboolean ARB_texture_env_combine; /* standard in OpenGL 1.3 */
GLboolean ARB_texture_env_crossbar; /* standard in OpenGL 1.4 */
GLboolean ARB_texture_env_dot3; /* standard in OpenGL 1.3 */
GLboolean ARB_texture_mirrored_repeat;
GLboolean ARB_texture_non_power_of_two; /* standard in 1.5 */
GLboolean ARB_transpose_matrix;
GLboolean ARB_vertex_buffer_object;
GLboolean ARB_pixel_buffer_object;
GLboolean ARB_vertex_program;
GLboolean ARB_window_pos;
GLboolean EXT_blend_color;
GLboolean EXT_blend_logic_op;
GLboolean EXT_blend_func_separate;
GLboolean EXT_blend_minmax;
GLboolean EXT_blend_subtract;
GLboolean EXT_clip_volume_hint;
GLboolean EXT_fog_coord;
GLboolean EXT_multi_draw_arrays;
GLboolean EXT_secondary_color;
GLboolean EXT_separate_specular_color;
GLboolean EXT_shadow_funcs;
GLboolean EXT_stencil_wrap;
GLboolean EXT_texture_edge_clamp; /* or SGIS_texture_edge_clamp */
GLboolean EXT_texture_filter_anisotropic;
GLboolean EXT_texture_lod_bias;
GLboolean EXT_texture3D;
GLboolean IBM_rasterpos_clip;
GLboolean NV_fog_distance;
GLboolean NV_fragment_program;
GLboolean NV_register_combiners;
GLboolean NV_register_combiners2;
GLboolean NV_texgen_reflection;
GLboolean NV_texture_rectangle;
GLboolean NV_vertex_program;
GLboolean NV_vertex_program1_1;
GLboolean NV_vertex_program2;
GLboolean SGIS_generate_mipmap;
GLboolean EXT_texture_from_pixmap;
GLboolean ATI_texture_mirror_once;
/* derived from above */
GLboolean any_vertex_program; /* NV or ARB */
GLboolean any_fragment_program; /* NV or ARB */
GLboolean any_program; /* vertex or fragment */
} CRExtensionState;
extern DECLEXPORT(void) crStateLimitsInit(CRLimitsState *limits);
extern DECLEXPORT(void) crStateLimitsDestroy(CRLimitsState *limits);
extern DECLEXPORT(void) crStateLimitsPrint(const CRLimitsState *limits);
extern DECLEXPORT(GLfloat) crStateComputeVersion(float minVersion);
extern DECLEXPORT(GLubyte *) crStateMergeExtensions(GLuint n, const GLubyte **extensions);
extern DECLEXPORT(void) crStateExtensionsInit( CRLimitsState *limits, CRExtensionState *extensions );
#ifdef __cplusplus
}
#endif
#endif /* CR_STATE_FOG_H */
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