From ed046bf842a6c29b84539af5b8e11b5b7e958e35 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Fri, 7 May 2004 18:04:23 +0000 Subject: [PATCH] Enable use of new DRI interface in i830 driver. --- src/mesa/drivers/dri/i830/i830_screen.c | 213 ++++++++++++++++++++++-- 1 file changed, 201 insertions(+), 12 deletions(-) diff --git a/src/mesa/drivers/dri/i830/i830_screen.c b/src/mesa/drivers/dri/i830/i830_screen.c index 1aa4027096c..18dab3d4020 100644 --- a/src/mesa/drivers/dri/i830/i830_screen.c +++ b/src/mesa/drivers/dri/i830/i830_screen.c @@ -26,11 +26,13 @@ * **************************************************************************/ /* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_screen.c,v 1.3 2002/12/10 01:26:53 dawes Exp $ */ -/* - * Authors: - * Keith Whitwell - * Adapted for use on the I830M: - * Jeff Hartmann +/** + * \file i830_screen.c + * + * Adapted for use on the I830M by Jeff Hartmann. + * + * \author Keith Whitwell + * \author Jeff Hartmann */ @@ -60,6 +62,7 @@ DRI_CONF_BEGIN DRI_CONF_END; const GLuint __driNConfigOptions = 1; +static PFNGLXCREATECONTEXTMODES create_context_modes = NULL; static int i830_malloc_proxy_buf(drmBufMapPtr buffers) { @@ -290,6 +293,21 @@ static GLboolean i830InitDriver(__DRIscreenPrivate *sPriv) } #endif +#ifndef _SOLO + if ( driCompareGLXAPIVersion( 20030813 ) >= 0 ) { + PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension = + (PFNGLXSCRENABLEEXTENSIONPROC) glXGetProcAddress( (const GLubyte *) "__glXScrEnableExtension" ); + void * const psc = sPriv->psc->screenConfigs; + + if ( glx_enable_extension != NULL ) { + if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) { + (*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" ); + (*glx_enable_extension)( psc, "GLX_OML_swap_method" ); + } + } + } +#endif + return GL_TRUE; } @@ -337,11 +355,6 @@ static void i830DestroyBuffer(__DRIdrawablePrivate *driDrawPriv) _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); } -static GLboolean i830OpenCloseFullScreen (__DRIcontextPrivate *driContextPriv) -{ - return GL_TRUE; -} - static const struct __DriverAPIRec i830API = { .InitDriver = i830InitDriver, .DestroyScreen = i830DestroyScreen, @@ -352,8 +365,8 @@ static const struct __DriverAPIRec i830API = { .SwapBuffers = i830SwapBuffers, .MakeCurrent = i830MakeCurrent, .UnbindContext = i830UnbindContext, - .OpenFullScreen = i830OpenCloseFullScreen, - .CloseFullScreen = i830OpenCloseFullScreen, + .OpenFullScreen = NULL, + .CloseFullScreen = NULL, .GetSwapInfo = NULL, .GetMSC = NULL, .WaitForMSC = NULL, @@ -384,3 +397,179 @@ void *__driCreateScreen(struct DRIDriverRec *driver, return (void *) psp; } #endif + + +static __GLcontextModes * fill_in_modes( __GLcontextModes * modes, + unsigned pixel_bits, + unsigned depth_bits, + unsigned stencil_bits, + const GLenum * db_modes, + unsigned num_db_modes, + int visType ) +{ + static const uint8_t bits[2][4] = { + { 5, 6, 5, 0 }, + { 8, 8, 8, 8 } + }; + + static const uint32_t masks[2][4] = { + { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, + { 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 } + }; + + unsigned i; + unsigned j; + const unsigned index = ((pixel_bits + 15) / 16) - 1; + + for ( i = 0 ; i < num_db_modes ; i++ ) { + for ( j = 0 ; j < 2 ; j++ ) { + + modes->redBits = bits[index][0]; + modes->greenBits = bits[index][1]; + modes->blueBits = bits[index][2]; + modes->alphaBits = bits[index][3]; + modes->redMask = masks[index][0]; + modes->greenMask = masks[index][1]; + modes->blueMask = masks[index][2]; + modes->alphaMask = masks[index][3]; + modes->rgbBits = modes->redBits + modes->greenBits + + modes->blueBits + modes->alphaBits; + + modes->accumRedBits = 16 * j; + modes->accumGreenBits = 16 * j; + modes->accumBlueBits = 16 * j; + modes->accumAlphaBits = (masks[index][3] != 0) ? 16 * j : 0; + modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG; + + modes->stencilBits = stencil_bits; + modes->depthBits = depth_bits; + + modes->visualType = visType; + modes->renderType = GLX_RGBA_BIT; + modes->drawableType = GLX_WINDOW_BIT; + modes->rgbMode = GL_TRUE; + + if ( db_modes[i] == GLX_NONE ) { + modes->doubleBufferMode = GL_FALSE; + } + else { + modes->doubleBufferMode = GL_TRUE; + modes->swapMethod = db_modes[i]; + } + + modes = modes->next; + } + } + + return modes; +} + + +static __GLcontextModes * +i830FillInModes( unsigned pixel_bits, unsigned depth_bits, + unsigned stencil_bits, GLboolean have_back_buffer ) +{ + __GLcontextModes * modes; + __GLcontextModes * m; + unsigned num_modes; + unsigned depth_buffer_factor; + unsigned back_buffer_factor; + unsigned i; + + /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't + * support pageflipping at all. + */ + static const GLenum back_buffer_modes[] = { + GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML + }; + + int depth_buffer_modes[2][2]; + + + depth_buffer_modes[0][0] = depth_bits; + depth_buffer_modes[1][0] = depth_bits; + + /* Just like with the accumulation buffer, always provide some modes + * with a stencil buffer. It will be a sw fallback, but some apps won't + * care about that. + */ + depth_buffer_modes[0][1] = 0; + depth_buffer_modes[1][1] = (stencil_bits == 0) ? 8 : stencil_bits; + + depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1; + back_buffer_factor = (have_back_buffer) ? 3 : 1; + + num_modes = depth_buffer_factor * back_buffer_factor * 4; + + modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) ); + m = modes; + for ( i = 0 ; i < depth_buffer_factor ; i++ ) { + m = fill_in_modes( m, pixel_bits, + depth_buffer_modes[i][0], depth_buffer_modes[i][1], + back_buffer_modes, back_buffer_factor, + GLX_TRUE_COLOR ); + } + + /* There's no direct color modes on i830? */ +#if 0 + for ( i = 0 ; i < depth_buffer_factor ; i++ ) { + m = fill_in_modes( m, pixel_bits, + depth_buffer_modes[i][0], depth_buffer_modes[i][1], + back_buffer_modes, back_buffer_factor, + GLX_DIRECT_COLOR ); + } +#endif + + /* Mark the visual as slow if there are "fake" stencil bits. + */ + for ( m = modes ; m != NULL ; m = m->next ) { + if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) { + m->visualRating = GLX_SLOW_CONFIG; + } + } + + return modes; +} + + +/** + * This is the bootstrap function for the driver. libGL supplies all of the + * requisite information about the system, and the driver initializes itself. + * This routine also fills in the linked list pointed to by \c driver_modes + * with the \c __GLcontextModes that the driver can support for windows or + * pbuffers. + * + * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on + * failure. + */ +void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc, + const __GLcontextModes * modes, + const __DRIversion * ddx_version, + const __DRIversion * dri_version, + const __DRIversion * drm_version, + const __DRIframebuffer * frame_buffer, + drmAddress pSAREA, int fd, + int internal_api_version, + __GLcontextModes ** driver_modes ) + +{ + __DRIscreenPrivate *psp; + + psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL, + ddx_version, dri_version, drm_version, + frame_buffer, pSAREA, fd, + internal_api_version, &i830API); + if ( psp != NULL ) { + create_context_modes = (PFNGLXCREATECONTEXTMODES) + glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" ); + if ( create_context_modes != NULL ) { + I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv; + *driver_modes = i830FillInModes( dri_priv->cpp * 8, + (dri_priv->cpp == 2) ? 16 : 24, + (dri_priv->cpp == 2) ? 0 : 8, + (dri_priv->backOffset != dri_priv->depthOffset) ); + } + } + + return (void *) psp; +} -- 2.30.2