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Added OpenGL support for pixel formats A8/L8/LA8

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Former-commit-id: b17942f7bf22daf90ddf5d8093da6c26b64a67ce
This commit is contained in:
Lynix
2014-12-10 19:01:03 +01:00
parent 96798da027
commit 7316cbb694
3 changed files with 96 additions and 9 deletions
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85
src/Nazara/Renderer/OpenGL.cpp
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@@ -1463,10 +1463,41 @@ void NzOpenGL::SetViewport(const NzRecti& viewport)
bool NzOpenGL::TranslateFormat(nzPixelFormat pixelFormat, Format* format, FormatType type)
{
// Par défaut
format->swizzle[0] = GL_RED;
format->swizzle[1] = GL_GREEN;
format->swizzle[2] = GL_BLUE;
format->swizzle[3] = GL_ALPHA;
switch (pixelFormat)
{
case nzPixelFormat_A8:
return false; ///FIXME: Tester le mode d'OpenGL pour se permettre une fonctionnalité dépréciée ?
if (type == FormatType_Texture) // Format supporté uniquement par les textures
{
if (GetVersion() >= 300)
{
format->dataFormat = GL_RED;
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = GL_R8;
// Simulation du format
format->swizzle[0] = GL_ONE;
format->swizzle[1] = GL_ONE;
format->swizzle[2] = GL_ONE;
format->swizzle[3] = GL_RED;
}
else
{
// Le bon vieux format GL_ALPHA
format->dataFormat = GL_ALPHA;
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = GL_ALPHA;
}
return true;
}
else
return false;
case nzPixelFormat_BGR8:
format->dataFormat = GL_BGR;
@@ -1499,8 +1530,58 @@ bool NzOpenGL::TranslateFormat(nzPixelFormat pixelFormat, Format* format, Format
return true;
case nzPixelFormat_L8:
if (type == FormatType_Texture) // Format supporté uniquement par les textures
{
if (GetVersion() >= 300)
{
format->dataFormat = GL_RED;
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = GL_R8;
// Simulation du format
format->swizzle[0] = GL_RED;
format->swizzle[1] = GL_RED;
format->swizzle[2] = GL_RED;
format->swizzle[3] = GL_ONE;
}
else
{
format->dataFormat = 0x1909; // GL_LUMINANCE
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = 0x1909; // GL_LUMINANCE
}
return true;
}
else
return false;
case nzPixelFormat_LA8:
return false;
if (type == FormatType_Texture) // Format supporté uniquement par les textures
{
if (GetVersion() >= 300)
{
format->dataFormat = GL_RG;
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = GL_RG8;
// Simulation du format
format->swizzle[0] = GL_RED;
format->swizzle[1] = GL_RED;
format->swizzle[2] = GL_RED;
format->swizzle[3] = GL_GREEN;
}
else
{
format->dataFormat = 0x190A; // GL_LUMINANCE_ALPHA
format->dataType = GL_UNSIGNED_BYTE;
format->internalFormat = 0x190A; // GL_LUMINANCE_ALPHA;
}
return true;
}
else
return false;
case nzPixelFormat_R8:
format->dataFormat = GL_RED;