From be0a2f62f3a5bc6f05c3c7c6b674f2688aee031d Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Thu, 14 Apr 2011 23:36:51 +0200 Subject: [PATCH] mesa: handle some srgb cases in the fast path in _mesa_get_teximage Previously, always did unorm8->float/nonlinear-to-linear conversion (using lookup table), then convert back to nonlinear (using the expensive math func pow among others), and finally convert back to int (assuming caller wants unorm8), because the float texture fetch function is used for getting the actual texel values. This should probably all be changed at some point, but for now simply enable the memcpy path also for srgb formats (but if for instance swizzling is required, still the whole conversion will be done). --- src/mesa/main/texgetimage.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c index 467baa2..b23317c 100644 --- a/src/mesa/main/texgetimage.c +++ b/src/mesa/main/texgetimage.c @@ -418,21 +418,24 @@ get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type, GLvoid *pixel texObj->Target == GL_TEXTURE_RECTANGLE || (texObj->Target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && texObj->Target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) { - if (texImage->TexFormat == MESA_FORMAT_ARGB8888 && + if ((texImage->TexFormat == MESA_FORMAT_ARGB8888 || + texImage->TexFormat == MESA_FORMAT_SARGB8) && format == GL_BGRA && - type == GL_UNSIGNED_BYTE && + (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) && !ctx->Pack.SwapBytes && _mesa_little_endian()) { memCopy = GL_TRUE; } - else if (texImage->TexFormat == MESA_FORMAT_AL88 && + else if ((texImage->TexFormat == MESA_FORMAT_AL88 || + texImage->TexFormat == MESA_FORMAT_SLA8) && format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && !ctx->Pack.SwapBytes && _mesa_little_endian()) { memCopy = GL_TRUE; } - else if (texImage->TexFormat == MESA_FORMAT_L8 && + else if ((texImage->TexFormat == MESA_FORMAT_L8 || + texImage->TexFormat == MESA_FORMAT_SL8) && format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE) { memCopy = GL_TRUE; -- 2.7.4