LCOV - code coverage report
Current view: top level - dom/canvas - WebGLExtensionTextureFloat.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 68 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 6 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* This Source Code Form is subject to the terms of the Mozilla Public
       2             :  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
       3             :  * You can obtain one at http://mozilla.org/MPL/2.0/. */
       4             : 
       5             : #include "WebGLExtensions.h"
       6             : 
       7             : #include "GLContext.h"
       8             : #include "mozilla/dom/WebGLRenderingContextBinding.h"
       9             : #include "WebGLContext.h"
      10             : #include "WebGLFormats.h"
      11             : 
      12             : namespace mozilla {
      13             : 
      14           0 : WebGLExtensionTextureFloat::WebGLExtensionTextureFloat(WebGLContext* webgl)
      15           0 :     : WebGLExtensionBase(webgl)
      16             : {
      17           0 :     MOZ_ASSERT(IsSupported(webgl));
      18             : 
      19           0 :     auto& fua = webgl->mFormatUsage;
      20           0 :     gl::GLContext* gl = webgl->GL();
      21             : 
      22             :     webgl::PackingInfo pi;
      23             :     webgl::DriverUnpackInfo dui;
      24           0 :     const GLint* swizzle = nullptr;
      25             : 
      26           0 :     const auto fnAdd = [&fua, &pi, &dui, &swizzle](webgl::EffectiveFormat effFormat)
      27           0 :     {
      28           0 :         auto usage = fua->EditUsage(effFormat);
      29           0 :         usage->textureSwizzleRGBA = swizzle;
      30           0 :         fua->AddTexUnpack(usage, pi, dui);
      31             : 
      32           0 :         fua->AllowUnsizedTexFormat(pi, usage);
      33           0 :     };
      34             : 
      35           0 :     const bool needsSwizzle = gl->IsCoreProfile();
      36           0 :     MOZ_ASSERT_IF(needsSwizzle, gl->IsSupported(gl::GLFeature::texture_swizzle));
      37             : 
      38           0 :     const bool needsSizedFormat = !gl->IsGLES();
      39             : 
      40             :     ////////////////
      41             : 
      42           0 :     pi = {LOCAL_GL_RGBA, LOCAL_GL_FLOAT};
      43           0 :     dui = {pi.format, pi.format, pi.type};
      44           0 :     swizzle = nullptr;
      45           0 :     if (needsSizedFormat) {
      46           0 :         dui.internalFormat = LOCAL_GL_RGBA32F;
      47             :     }
      48           0 :     fnAdd(webgl::EffectiveFormat::RGBA32F);
      49             : 
      50             :     //////
      51             : 
      52           0 :     pi = {LOCAL_GL_RGB, LOCAL_GL_FLOAT};
      53           0 :     dui = {pi.format, pi.format, pi.type};
      54           0 :     swizzle = nullptr;
      55           0 :     if (needsSizedFormat) {
      56           0 :         dui.internalFormat = LOCAL_GL_RGB32F;
      57             :     }
      58           0 :     fnAdd(webgl::EffectiveFormat::RGB32F);
      59             : 
      60             :     //////
      61             : 
      62           0 :     pi = {LOCAL_GL_LUMINANCE, LOCAL_GL_FLOAT};
      63           0 :     dui = {pi.format, pi.format, pi.type};
      64           0 :     swizzle = nullptr;
      65           0 :     if (needsSwizzle) {
      66           0 :         dui = {LOCAL_GL_R32F, LOCAL_GL_RED, LOCAL_GL_FLOAT};
      67           0 :         swizzle = webgl::FormatUsageInfo::kLuminanceSwizzleRGBA;
      68           0 :     } else if (needsSizedFormat) {
      69           0 :         dui.internalFormat = LOCAL_GL_LUMINANCE32F_ARB;
      70             :     }
      71           0 :     fnAdd(webgl::EffectiveFormat::Luminance32F);
      72             : 
      73             :     //////
      74             : 
      75           0 :     pi = {LOCAL_GL_ALPHA, LOCAL_GL_FLOAT};
      76           0 :     dui = {pi.format, pi.format, pi.type};
      77           0 :     swizzle = nullptr;
      78           0 :     if (needsSwizzle) {
      79           0 :         dui = {LOCAL_GL_R32F, LOCAL_GL_RED, LOCAL_GL_FLOAT};
      80           0 :         swizzle = webgl::FormatUsageInfo::kAlphaSwizzleRGBA;
      81           0 :     } else if (needsSizedFormat) {
      82           0 :         dui.internalFormat = LOCAL_GL_ALPHA32F_ARB;
      83             :     }
      84           0 :     fnAdd(webgl::EffectiveFormat::Alpha32F);
      85             : 
      86             :     //////
      87             : 
      88           0 :     pi = {LOCAL_GL_LUMINANCE_ALPHA, LOCAL_GL_FLOAT};
      89           0 :     dui = {pi.format, pi.format, pi.type};
      90           0 :     swizzle = nullptr;
      91           0 :     if (needsSwizzle) {
      92           0 :         dui = {LOCAL_GL_RG32F, LOCAL_GL_RG, LOCAL_GL_FLOAT};
      93           0 :         swizzle = webgl::FormatUsageInfo::kLumAlphaSwizzleRGBA;
      94           0 :     } else if (needsSizedFormat) {
      95           0 :         dui.internalFormat = LOCAL_GL_LUMINANCE_ALPHA32F_ARB;
      96             :     }
      97           0 :     fnAdd(webgl::EffectiveFormat::Luminance32FAlpha32F);
      98           0 : }
      99             : 
     100           0 : WebGLExtensionTextureFloat::~WebGLExtensionTextureFloat()
     101             : {
     102           0 : }
     103             : 
     104             : bool
     105           0 : WebGLExtensionTextureFloat::IsSupported(const WebGLContext* webgl)
     106             : {
     107           0 :     gl::GLContext* gl = webgl->GL();
     108             : 
     109           0 :     if (!gl->IsSupported(gl::GLFeature::texture_float))
     110           0 :         return false;
     111             : 
     112           0 :     const bool needsSwizzle = gl->IsCoreProfile();
     113           0 :     const bool hasSwizzle = gl->IsSupported(gl::GLFeature::texture_swizzle);
     114           0 :     if (needsSwizzle && !hasSwizzle)
     115           0 :         return false;
     116             : 
     117           0 :     return true;
     118             : }
     119             : 
     120           0 : IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionTextureFloat, OES_texture_float)
     121             : 
     122             : } // namespace mozilla

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