diff options
Diffstat (limited to 'src/mesa/pipe/xlib')
| -rw-r--r-- | src/mesa/pipe/xlib/xm_api.c | 120 |
1 files changed, 73 insertions, 47 deletions
diff --git a/src/mesa/pipe/xlib/xm_api.c b/src/mesa/pipe/xlib/xm_api.c index 4021af187c..142074bc65 100644 --- a/src/mesa/pipe/xlib/xm_api.c +++ b/src/mesa/pipe/xlib/xm_api.c @@ -251,6 +251,52 @@ xmesa_get_window_size(XMesaDisplay *dpy, XMesaBuffer b, } +/** + * Choose the pixel format for the given visual. + * This will tell the gallium driver how to pack pixel data into + * drawing surfaces. + */ +static GLuint +choose_pixel_format(XMesaVisual v) +{ + if ( GET_REDMASK(v) == 0x0000ff + && GET_GREENMASK(v) == 0x00ff00 + && GET_BLUEMASK(v) == 0xff0000 + && v->BitsPerPixel == 32) { + if (CHECK_BYTE_ORDER(v)) { + /* no byteswapping needed */ + return 0 /* PIXEL_FORMAT_U_A8_B8_G8_R8 */; + } + else { + return PIPE_FORMAT_R8G8B8A8_UNORM; + } + } + else if ( GET_REDMASK(v) == 0xff0000 + && GET_GREENMASK(v) == 0x00ff00 + && GET_BLUEMASK(v) == 0x0000ff + && v->BitsPerPixel == 32) { + if (CHECK_BYTE_ORDER(v)) { + /* no byteswapping needed */ + return PIPE_FORMAT_A8R8G8B8_UNORM; + } + else { + return PIPE_FORMAT_B8G8R8A8_UNORM; + } + } + else if ( GET_REDMASK(v) == 0xf800 + && GET_GREENMASK(v) == 0x07e0 + && GET_BLUEMASK(v) == 0x001f + && CHECK_BYTE_ORDER(v) + && v->BitsPerPixel == 16) { + /* 5-6-5 RGB */ + return PIPE_FORMAT_R5G6B5_UNORM; + } + + assert(0); + return 0; +} + + /**********************************************************************/ /***** Linked list of XMesaBuffers *****/ @@ -276,6 +322,7 @@ create_xmesa_buffer(XMesaDrawable d, BufferType type, { XMesaBuffer b; GLframebuffer *fb; + enum pipe_format colorFormat, depthFormat, stencilFormat; ASSERT(type == WINDOW || type == PIXMAP || type == PBUFFER); @@ -289,10 +336,35 @@ create_xmesa_buffer(XMesaDrawable d, BufferType type, b->type = type; b->cmap = cmap; + /* determine PIPE_FORMATs for buffers */ + colorFormat = choose_pixel_format(vis); + + if (vis->mesa_visual.depthBits == 0) + depthFormat = PIPE_FORMAT_NONE; + else if (vis->mesa_visual.depthBits <= 16) + depthFormat = PIPE_FORMAT_Z16_UNORM; + else if (vis->mesa_visual.depthBits <= 24) + depthFormat = PIPE_FORMAT_S8Z24_UNORM; + else + depthFormat = PIPE_FORMAT_Z32_UNORM; + + if (vis->mesa_visual.stencilBits == 8) { + if (depthFormat == PIPE_FORMAT_S8Z24_UNORM) + stencilFormat = depthFormat; + else + stencilFormat = PIPE_FORMAT_S8_UNORM; + } + else { + stencilFormat = PIPE_FORMAT_NONE; + } + + /* * Create framebuffer, but we'll plug in our own renderbuffers below. */ - b->stfb = st_create_framebuffer(&vis->mesa_visual, GL_TRUE, (void *) b); + b->stfb = st_create_framebuffer(&vis->mesa_visual, GL_TRUE, + colorFormat, depthFormat, stencilFormat, + (void *) b); fb = &b->stfb->Base; /* @@ -388,52 +460,6 @@ xmesa_free_buffer(XMesaBuffer buffer) /** - * Choose the pixel format for the given visual. - * This will tell the gallium driver how to pack pixel data into - * drawing surfaces. - */ -static GLuint -choose_pixel_format(XMesaVisual v) -{ - if ( GET_REDMASK(v) == 0x0000ff - && GET_GREENMASK(v) == 0x00ff00 - && GET_BLUEMASK(v) == 0xff0000 - && v->BitsPerPixel == 32) { - if (CHECK_BYTE_ORDER(v)) { - /* no byteswapping needed */ - return 0 /* PIXEL_FORMAT_U_A8_B8_G8_R8 */; - } - else { - return PIPE_FORMAT_R8G8B8A8_UNORM; - } - } - else if ( GET_REDMASK(v) == 0xff0000 - && GET_GREENMASK(v) == 0x00ff00 - && GET_BLUEMASK(v) == 0x0000ff - && v->BitsPerPixel == 32) { - if (CHECK_BYTE_ORDER(v)) { - /* no byteswapping needed */ - return PIPE_FORMAT_A8R8G8B8_UNORM; - } - else { - return PIPE_FORMAT_B8G8R8A8_UNORM; - } - } - else if ( GET_REDMASK(v) == 0xf800 - && GET_GREENMASK(v) == 0x07e0 - && GET_BLUEMASK(v) == 0x001f - && CHECK_BYTE_ORDER(v) - && v->BitsPerPixel == 16) { - /* 5-6-5 RGB */ - return PIPE_FORMAT_R5G6B5_UNORM; - } - - assert(0); - return 0; -} - - -/** * When a context is bound for the first time, we can finally finish * initializing the context's visual and buffer information. * \param v the XMesaVisual to initialize |