274 lines
8.8 KiB
C++
274 lines
8.8 KiB
C++
// Copyright (C) 2008 Christian Stehno
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// Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in Irrlicht.h
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#include "IrrCompileConfig.h"
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#ifdef _IRR_COMPILE_WITH_OGLES1_
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#include "COGLESExtensionHandler.h"
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#include "COGLESDriver.h"
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#include "fast_atof.h"
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#include "irrString.h"
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namespace irr
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{
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namespace video
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{
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static const char* const OGLESFeatureStrings[] =
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{
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"GL_AMD_compressed_3DC_texture",
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"GL_AMD_compressed_ATC_texture",
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"GL_AMD_performance_monitor",
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"GL_AMD_program_binary_Z400",
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"GL_ANGLE_framebuffer_blit",
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"GL_ANGLE_framebuffer_multisample",
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"GL_APPLE_framebuffer_multisample",
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"GL_APPLE_rgb_422",
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"GL_APPLE_texture_2D_limited_npot",
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"GL_APPLE_texture_format_BGRA8888",
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"GL_APPLE_texture_max_level",
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"GL_ARB_texture_env_combine",
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"GL_ARB_texture_env_dot3",
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"GL_ARM_mali_shader_binary",
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"GL_ARM_rgba8",
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"GL_DMP_shader_binary",
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"GL_EXT_blend_minmax",
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"GL_EXT_discard_framebuffer",
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"GL_EXT_frag_depth",
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"GL_EXT_multi_draw_arrays",
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"GL_EXT_read_format_bgra",
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"GL_EXT_shader_texture_lod",
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"GL_EXT_texture_compression_dxt1",
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"GL_EXT_texture_filter_anisotropic",
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"GL_EXT_texture_format_BGRA8888",
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"GL_EXT_texture_lod_bias",
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"GL_EXT_texture_type_2_10_10_10_REV",
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"GL_IMG_multisampled_render_to_texture",
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"GL_IMG_program_binary",
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"GL_IMG_read_format",
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"GL_IMG_shader_binary",
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"GL_IMG_texture_compression_pvrtc",
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"GL_IMG_texture_env_enhanced_fixed_function",
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"GL_IMG_texture_format_BGRA8888",
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"GL_IMG_user_clip_plane",
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"GL_IMG_vertex_program",
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"GL_NV_coverage_sample",
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"GL_NV_depth_nonlinear",
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"GL_NV_fence",
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"GL_OES_blend_equation_separate",
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"GL_OES_blend_func_separate",
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"GL_OES_blend_subtract",
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"GL_OES_byte_coordinates",
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"GL_OES_compressed_ETC1_RGB8_texture",
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"GL_OES_compressed_paletted_texture",
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"GL_OES_depth24",
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"GL_OES_depth32",
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"GL_OES_depth_texture",
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"GL_OES_draw_texture",
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"GL_OES_EGL_image",
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"GL_OES_EGL_image_external",
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"GL_OES_EGL_sync",
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"GL_OES_element_index_uint",
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"GL_OES_extended_matrix_palette",
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"GL_OES_fbo_render_mipmap",
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"GL_OES_fixed_point",
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"GL_OES_fragment_precision_high",
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"GL_OES_framebuffer_object",
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"GL_OES_get_program_binary",
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"GL_OES_mapbuffer",
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"GL_OES_matrix_get",
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"GL_OES_matrix_palette",
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"GL_OES_packed_depth_stencil",
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"GL_OES_point_size_array",
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"GL_OES_point_sprite",
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"GL_OES_query_matrix",
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"GL_OES_read_format",
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"GL_OES_rgb8_rgba8",
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"GL_OES_single_precision",
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"GL_OES_standard_derivatives",
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"GL_OES_stencil1",
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"GL_OES_stencil4",
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"GL_OES_stencil8",
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"GL_OES_stencil_wrap",
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"GL_OES_texture_3D",
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"GL_OES_texture_cube_map",
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"GL_OES_texture_env_crossbar",
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"GL_OES_texture_float",
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"GL_OES_texture_float_linear",
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"GL_OES_texture_half_float",
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"GL_OES_texture_half_float_linear",
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"GL_OES_texture_mirrored_repeat",
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"GL_OES_texture_npot",
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"GL_OES_vertex_array_object",
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"GL_OES_vertex_half_float",
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"GL_OES_vertex_type_10_10_10_2",
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"GL_QCOM_driver_control",
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"GL_QCOM_extended_get",
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"GL_QCOM_extended_get2",
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"GL_QCOM_performance_monitor_global_mode",
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"GL_QCOM_tiled_rendering",
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"GL_QCOM_writeonly_rendering",
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"GL_SUN_multi_draw_arrays",
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"GL_VIV_shader_binary"
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};
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COGLES1ExtensionHandler::COGLES1ExtensionHandler() :
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#if defined(_IRR_OGLES1_USE_EXTPOINTER_)
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pGlDrawTexiOES(0), pGlDrawTexfOES(0),
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pGlDrawTexivOES(0), pGlDrawTexfvOES(0),
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pGlBindRenderbufferOES(0), pGlDeleteRenderbuffersOES(0),
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pGlGenRenderbuffersOES(0), pGlRenderbufferStorageOES(0),
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pGlBindFramebufferOES(0), pGlDeleteFramebuffersOES(0),
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pGlGenFramebuffersOES(0), pGlCheckFramebufferStatusOES(0),
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pGlFramebufferRenderbufferOES(0), pGlFramebufferTexture2DOES(0),
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pGlGenerateMipMapOES(0),
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#endif
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EGLVersion(0), Version(0), MaxTextureUnits(0), MaxLights(0),
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MaxAnisotropy(1), MaxUserClipPlanes(0), MaxAuxBuffers(0),
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MaxMultipleRenderTargets(1), MaxIndices(65535), MaxTextureSize(1),
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MaxTextureLODBias(0.f), CommonProfile(false),
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MultiTextureExtension(false), MultiSamplingExtension(false),
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StencilBuffer(false)
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{
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for (u32 i=0; i<IRR_OGLES_Feature_Count; ++i)
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FeatureAvailable[i]=false;
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DimAliasedLine[0]=1.f;
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DimAliasedLine[1]=1.f;
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DimAliasedPoint[0]=1.f;
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DimAliasedPoint[1]=1.f;
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DimSmoothedLine[0]=1.f;
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DimSmoothedLine[1]=1.f;
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DimSmoothedPoint[0]=1.f;
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DimSmoothedPoint[1]=1.f;
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}
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void COGLES1ExtensionHandler::dump() const
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{
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for (u32 i=0; i<IRR_OGLES_Feature_Count; ++i)
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os::Printer::log(OGLESFeatureStrings[i], FeatureAvailable[i]?" true":" false");
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}
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void COGLES1ExtensionHandler::initExtensions(COGLES1Driver* driver,
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#ifdef EGL_VERSION_1_0
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EGLDisplay display,
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#endif
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bool withStencil)
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{
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#ifdef EGL_VERSION_1_0
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const f32 egl_ver = core::fast_atof(reinterpret_cast<const c8*>(eglQueryString(display, EGL_VERSION)));
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EGLVersion = static_cast<u16>(core::floor32(egl_ver)*100+core::round32(core::fract(egl_ver)*10.0f));
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core::stringc eglExtensions = eglQueryString(display, EGL_EXTENSIONS);
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os::Printer::log(eglExtensions.c_str());
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#endif
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const core::stringc stringVer(glGetString(GL_VERSION));
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CommonProfile = (stringVer[11]=='M');
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const f32 ogl_ver = core::fast_atof(stringVer.c_str()+13);
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Version = static_cast<u16>(core::floor32(ogl_ver)*100+core::round32(core::fract(ogl_ver)*10.0f));
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core::stringc extensions = glGetString(GL_EXTENSIONS);
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os::Printer::log(extensions.c_str());
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// typo in the simulator (note the postfixed s)
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if (extensions.find("GL_IMG_user_clip_planes"))
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FeatureAvailable[IRR_IMG_user_clip_plane] = true;
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{
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const u32 size = extensions.size()+1;
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c8* str = new c8[size];
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strncpy(str, extensions.c_str(), extensions.size());
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str[extensions.size()]=' ';
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c8* p = str;
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for (u32 i=0; i<size; ++i)
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{
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if (str[i] == ' ')
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{
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str[i] = 0;
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if (*p)
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for (u32 j=0; j<IRR_OGLES_Feature_Count; ++j)
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{
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if (!strcmp(OGLESFeatureStrings[j], p))
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{
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FeatureAvailable[j] = true;
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break;
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}
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}
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p = p + strlen(p) + 1;
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}
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}
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delete [] str;
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}
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GLint val=0;
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glGetIntegerv(GL_MAX_TEXTURE_UNITS, &val);
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MaxSupportedTextures = core::min_(MATERIAL_MAX_TEXTURES, static_cast<u32>(val));
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MultiTextureExtension = true;
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glGetIntegerv(GL_MAX_LIGHTS, &val);
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MaxLights = static_cast<u8>(val);
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#ifdef GL_EXT_texture_filter_anisotropic
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if (FeatureAvailable[IRR_EXT_texture_filter_anisotropic])
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{
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glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &val);
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MaxAnisotropy = static_cast<u8>(val);
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}
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#endif
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#ifdef GL_MAX_ELEMENTS_INDICES
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glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &val);
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MaxIndices=val;
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#endif
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glGetIntegerv(GL_MAX_TEXTURE_SIZE, &val);
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MaxTextureSize=static_cast<u32>(val);
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#ifdef GL_EXT_texture_lod_bias
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if (FeatureAvailable[IRR_EXT_texture_lod_bias])
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glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &MaxTextureLODBias);
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#endif
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if ((Version>100) || FeatureAvailable[IRR_IMG_user_clip_plane])
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{
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glGetIntegerv(GL_MAX_CLIP_PLANES, &val);
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MaxUserClipPlanes = static_cast<u8>(val);
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}
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glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, DimAliasedLine);
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glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, DimAliasedPoint);
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glGetFloatv(GL_SMOOTH_LINE_WIDTH_RANGE, DimSmoothedLine);
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glGetFloatv(GL_SMOOTH_POINT_SIZE_RANGE, DimSmoothedPoint);
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MaxTextureUnits = core::min_(MaxSupportedTextures, static_cast<u8>(MATERIAL_MAX_TEXTURES));
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#if defined(_IRR_OGLES1_USE_EXTPOINTER_)
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if (FeatureAvailable[IRR_OES_draw_texture])
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{
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pGlDrawTexiOES = (PFNGLDRAWTEXIOES) eglGetProcAddress("glDrawTexiOES");
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pGlDrawTexfOES = (PFNGLDRAWTEXFOES) eglGetProcAddress("glDrawTexfOES");
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pGlDrawTexivOES = (PFNGLDRAWTEXIVOES) eglGetProcAddress("glDrawTexivOES");
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pGlDrawTexfvOES = (PFNGLDRAWTEXFVOES) eglGetProcAddress("glDrawTexfvOES");
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}
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if (FeatureAvailable[IRR_OES_framebuffer_object])
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{
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pGlBindRenderbufferOES = (PFNGLBINDRENDERBUFFEROES) eglGetProcAddress("glBindRenderbufferOES");
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pGlDeleteRenderbuffersOES = (PFNGLDELETERENDERBUFFERSOES) eglGetProcAddress("glDeletedRenderbuffersOES");
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pGlGenRenderbuffersOES = (PFNGLGENRENDERBUFFERSOES) eglGetProcAddress("glGenRenderbuffersOES");
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pGlRenderbufferStorageOES = (PFNGLRENDERBUFFERSTORAGEOES) eglGetProcAddress("glRenderbufferStorageOES");
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pGlBindFramebufferOES = (PFNGLBINDFRAMEBUFFEROES) eglGetProcAddress("glBindFramebufferOES");
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pGlDeleteFramebuffersOES = (PFNGLDELETEFRAMEBUFFERSOES) eglGetProcAddress("glDeleteFramebuffersOES");
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pGlGenFramebuffersOES = (PFNGLGENFRAMEBUFFERSOES) eglGetProcAddress("glGenFramebuffersOES");
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pGlCheckFramebufferStatusOES = (PFNGLCHECKFRAMEBUFFERSTATUSOES) eglGetProcAddress("glCheckFramebufferStatusOES");
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pGlFramebufferRenderbufferOES = (PFNGLFRAMEBUFFERRENDERBUFFEROES) eglGetProcAddress("glFramebufferRenderbufferOES");
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pGlFramebufferTexture2DOES = (PFNGLFRAMEBUFFERTEXTURE2DOES) eglGetProcAddress("glFramebufferTexture2DOES");
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pGlGenerateMipMapOES = (PFNGLGENERATEMIPMAPOES) eglGetProcAddress("glGenerateMipMapOES");
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}
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#endif
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}
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} // end namespace video
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} // end namespace irr
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#endif // _IRR_COMPILE_WITH_OGLES1_
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