diff options
Diffstat (limited to 'indra')
| -rw-r--r-- | indra/llrender/llimagegl.cpp | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp index c42688e95b..5b0690bc79 100644 --- a/indra/llrender/llimagegl.cpp +++ b/indra/llrender/llimagegl.cpp @@ -1100,15 +1100,9 @@ void LLImageGL::postAddToAtlas() stop_glerror(); } -// Equivalent to calling glSetSubImage2D(target, miplevel, x_offset, y_offset, width, height, pixformat, pixtype, src) -// However, instead there are multiple calls to glSetSubImage2D on smaller slices of the image -void subImageLines(U32 target, S32 miplevel, S32 x_offset, S32 y_offset, S32 width, S32 height, U32 pixformat, U32 pixtype, const U8* src) +U32 type_width_from_pixtype(U32 pixtype) { - LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE; - - U32 components = LLImageGL::dataFormatComponents(pixformat); U32 type_width = 0; - switch (pixtype) { case GL_UNSIGNED_BYTE: @@ -1128,12 +1122,22 @@ void subImageLines(U32 target, S32 miplevel, S32 x_offset, S32 y_offset, S32 wid default: LL_ERRS() << "Unknown type: " << pixtype << LL_ENDL; } + return type_width; +} + +// Equivalent to calling glSetSubImage2D(target, miplevel, x_offset, y_offset, width, height, pixformat, pixtype, src), assuming the total width of the image is data_width +// However, instead there are multiple calls to glSetSubImage2D on smaller slices of the image +void subImageLines(U32 target, S32 miplevel, S32 x_offset, S32 y_offset, S32 width, S32 height, U32 pixformat, U32 pixtype, const U8* src, S32 data_width) +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE; + + U32 components = LLImageGL::dataFormatComponents(pixformat); + U32 type_width = type_width_from_pixtype(pixtype); - const U32 line_width = width * components * type_width; + const U32 line_width = data_width * components * type_width; const U32 y_offset_end = y_offset + height; - for (U32 y = y_offset; y < y_offset_end; ++y) + for (U32 y_pos = y_offset; y_pos < y_offset_end; ++y_pos) { - const S32 y_pos = y + y_offset; glTexSubImage2D(target, miplevel, x_offset, y_pos, width, 1, pixformat, pixtype, src); src += line_width; } @@ -1213,7 +1217,7 @@ BOOL LLImageGL::setSubImage(const U8* datap, S32 data_width, S32 data_height, S3 stop_glerror(); } - datap += (y_pos * data_width + x_pos) * getComponents(); + const U8* sub_datap = datap + (y_pos * data_width + x_pos) * getComponents(); // Update the GL texture BOOL res = gGL.getTexUnit(0)->bindManual(mBindTarget, tex_name); if (!res) LL_ERRS() << "LLImageGL::setSubImage(): bindTexture failed" << LL_ENDL; @@ -1230,11 +1234,11 @@ BOOL LLImageGL::setSubImage(const U8* datap, S32 data_width, S32 data_height, S3 // setManualImage? Maybe because it only gets called with the // dimensions of the full image? Or because the image is never // compressed? - glTexSubImage2D(mTarget, 0, x_pos, y_pos, width, height, mFormatPrimary, mFormatType, datap); + glTexSubImage2D(mTarget, 0, x_pos, y_pos, width, height, mFormatPrimary, mFormatType, sub_datap); } else { - subImageLines(mTarget, 0, x_pos, y_pos, width, height, mFormatPrimary, mFormatType, datap); + subImageLines(mTarget, 0, x_pos, y_pos, width, height, mFormatPrimary, mFormatType, sub_datap, data_width); } gGL.getTexUnit(0)->disable(); stop_glerror(); @@ -1475,7 +1479,7 @@ void LLImageGL::setManualImage(U32 target, S32 miplevel, S32 intformat, S32 widt if (src) { LL_PROFILE_ZONE_NAMED("glTexImage2D copy"); - subImageLines(target, miplevel, 0, 0, width, height, pixformat, pixtype, src); + subImageLines(target, miplevel, 0, 0, width, height, pixformat, pixtype, src, width); } } alloc_tex_image(width, height, pixformat); |