diff options
Diffstat (limited to 'src/mesa/drivers/windows/wmesa.c')
| -rw-r--r-- | src/mesa/drivers/windows/wmesa.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/mesa/drivers/windows/wmesa.c b/src/mesa/drivers/windows/wmesa.c index 4f057bfad7..73037b7d05 100644 --- a/src/mesa/drivers/windows/wmesa.c +++ b/src/mesa/drivers/windows/wmesa.c @@ -1,4 +1,4 @@ -/* $Id: wmesa.c,v 1.26 2002/03/16 00:53:15 brianp Exp $ */ +/* $Id: wmesa.c,v 1.27 2002/04/23 18:23:33 kschultz Exp $ */ /* * Windows (Win32) device driver for Mesa 3.4 @@ -396,6 +396,13 @@ static clear(GLcontext* ctx, GLbitfield mask, /* sanity check - can't have right(stereo) buffers */ assert((mask & (DD_FRONT_RIGHT_BIT | DD_BACK_RIGHT_BIT)) == 0); + /* clear alpha */ + if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_RIGHT_BIT)) && + ctx->DrawBuffer->UseSoftwareAlphaBuffers && + ctx->Color.ColorMask[ACOMP]) { + _mesa_clear_alpha_buffers( ctx ); + } + if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) { if (mask & DD_BACK_LEFT_BIT) { #if defined(USE_GDI_TO_CLEAR) @@ -1240,7 +1247,8 @@ static void GetPalette(HPALETTE Pal,RGBQUAD *aRGB) WMesaContext WMesaCreateContext( HWND hWnd, HPALETTE* Pal, GLboolean rgb_flag, - GLboolean db_flag ) + GLboolean db_flag, + GLboolean alpha_flag ) { RECT CR; WMesaContext c; @@ -1318,7 +1326,8 @@ WMesaContext WMesaCreateContext( HWND hWnd, HPALETTE* Pal, c->gl_visual = _mesa_create_visual(rgb_flag, db_flag, /* db_flag */ GL_FALSE, /* stereo */ - 8,8,8,8, /* r, g, b, a bits */ + 8,8,8, /* r, g, b bits */ + alpha_flag ? 8 : 0, /* alpha bits */ 0, /* index bits */ 16, /* depth_bits */ 8, /* stencil_bits */ @@ -1355,7 +1364,7 @@ WMesaContext WMesaCreateContext( HWND hWnd, HPALETTE* Pal, c->gl_visual->depthBits > 0, c->gl_visual->stencilBits > 0, c->gl_visual->accumRedBits > 0, - GL_FALSE /* s/w alpha */ ); + alpha_flag /* s/w alpha */ ); if (!c->gl_buffer) { _mesa_destroy_visual( c->gl_visual ); _mesa_free_context_data( c->gl_ctx ); |