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Cleanup of texture swizzle and BGRA format handling.

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bkaradzic
2013-01-06 12:39:18 -08:00
parent b52cc77a14
commit 79f5f23b79
2 changed files with 68 additions and 14 deletions
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46
src/renderer_gl.cpp
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@@ -78,9 +78,7 @@ namespace bgfx
static Extension s_extension[Extension::Count] =
{
{ "GL_EXT_texture_filter_anisotropic", false, true },
// Nvidia BGRA on Linux bug:
// https://groups.google.com/a/chromium.org/forum/?fromgroups#!topic/chromium-reviews/yFfbUdyeUCQ
{ "GL_EXT_texture_format_BGRA8888", false, !BX_PLATFORM_LINUX },
{ "GL_EXT_texture_format_BGRA8888", false, true },
{ "GL_EXT_texture_compression_s3tc", false, true },
{ "GL_EXT_texture_compression_dxt1", false, true },
{ "GL_CHROMIUM_texture_compression_dxt3", false, true },
@@ -190,6 +188,7 @@ namespace bgfx
, m_maxAnisotropy(0.0f)
, m_dxtSupport(false)
, m_programBinarySupport(false)
, m_textureSwizzleSupport(false)
, m_flip(false)
, m_postSwapBuffers(NULL)
, m_hash( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
@@ -714,6 +713,7 @@ namespace bgfx
float m_maxAnisotropy;
bool m_dxtSupport;
bool m_programBinarySupport;
bool m_textureSwizzleSupport;
bool m_flip;
PostSwapBuffersFn m_postSwapBuffers;
@@ -935,7 +935,7 @@ namespace bgfx
uint8_t m_bpp;
};
static const TextureFormatInfo s_textureFormat[TextureFormat::Count] =
static TextureFormatInfo s_textureFormat[TextureFormat::Count] =
{
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, 4 },
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, 4 },
@@ -1434,20 +1434,11 @@ namespace bgfx
|| TextureFormat::Unknown < dds.m_type)
{
bool decompress = TextureFormat::Unknown > dds.m_type;
if (GL_RGBA == internalFmt
|| decompress)
{
internalFmt = GL_RGBA;
m_fmt = s_extension[Extension::EXT_texture_format_BGRA8888].m_supported ? GL_BGRA_EXT : GL_RGBA;
}
bool swizzle = GL_RGBA == m_fmt;
#if BGFX_CONFIG_RENDERER_OPENGL
if (swizzle
&& (s_extension[Extension::ARB_texture_swizzle].m_supported || s_extension[Extension::EXT_texture_swizzle].m_supported) )
&& s_renderCtx.m_textureSwizzleSupport)
{
swizzle = false;
GLint swizzleMask[] = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA };
@@ -1590,6 +1581,17 @@ namespace bgfx
uint32_t bpp = tfi.m_bpp;
uint8_t* data = NULL != tc.m_mem ? tc.m_mem->data : NULL;
uint32_t min = m_compressed ? 4 : 1;
bool swizzle = GL_RGBA == m_fmt;
#if BGFX_CONFIG_RENDERER_OPENGL
if (swizzle
&& s_renderCtx.m_textureSwizzleSupport)
{
swizzle = false;
GLint swizzleMask[] = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA };
GL_CHECK(glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask) );
}
#endif // BGFX_CONFIG_RENDERER_OPENGL
for (uint8_t side = 0, numSides = tc.m_cubeMap ? 6 : 1; side < numSides; ++side)
{
@@ -1619,6 +1621,11 @@ namespace bgfx
}
else
{
if (swizzle)
{
rgbaToBgra(data, width, height);
}
texImage(target+side
, lod
, internalFmt
@@ -2195,10 +2202,21 @@ namespace bgfx
|| s_extension[Extension::OES_get_program_binary].m_supported
;
s_renderCtx.m_textureSwizzleSupport = false
|| s_extension[Extension::ARB_texture_swizzle].m_supported
|| s_extension[Extension::EXT_texture_swizzle].m_supported
;
if (s_extension[Extension::EXT_texture_filter_anisotropic].m_supported)
{
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &s_renderCtx.m_maxAnisotropy);
}
if (s_extension[Extension::EXT_texture_format_BGRA8888].m_supported)
{
s_textureFormat[TextureFormat::BGRX8].m_fmt = GL_BGRA_EXT;
s_textureFormat[TextureFormat::BGRA8].m_fmt = GL_BGRA_EXT;
}
}
}