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/* -*- mode: c; c-basic-offset: 3 -*- */
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* Copyright 2000 Gareth Hughes
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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* Gareth Hughes <gareth@valinux.com>
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* Leif Delgass <ldelgass@retinalburn.net>
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* Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
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#include "mach64_context.h"
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#include "mach64_ioctl.h"
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#include "mach64_span.h"
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#include "main/context.h"
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#include "main/imports.h"
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#include "main/framebuffer.h"
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#include "main/renderbuffer.h"
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#include "GL/internal/dri_interface.h"
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/* Mach64 configuration
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PUBLIC const char __driConfigOptions[] =
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DRI_CONF_SECTION_PERFORMANCE
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DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
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DRI_CONF_SECTION_DEBUG
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DRI_CONF_NO_RAST(false)
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DRI_CONF_PERFORMANCE_BOXES(false)
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static const GLuint __driNConfigOptions = 3;
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static const GLuint __driNConfigOptions = 2;
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static const __DRIconfig **
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mach64FillInModes( __DRIscreen *psp,
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unsigned pixel_bits, unsigned depth_bits,
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unsigned stencil_bits, GLboolean have_back_buffer )
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__DRIconfig **configs;
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unsigned depth_buffer_factor;
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unsigned back_buffer_factor;
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/* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
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* enough to add support. Basically, if a context is created with an
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* fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
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static const GLenum back_buffer_modes[] = {
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GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
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uint8_t depth_bits_array[2];
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uint8_t stencil_bits_array[2];
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uint8_t msaa_samples_array[1];
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depth_bits_array[0] = depth_bits;
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depth_bits_array[1] = depth_bits;
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/* Just like with the accumulation buffer, always provide some modes
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* with a stencil buffer. It will be a sw fallback, but some apps won't
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stencil_bits_array[0] = 0;
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stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
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msaa_samples_array[0] = 0;
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depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
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back_buffer_factor = (have_back_buffer) ? 2 : 1;
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if (pixel_bits == 16) {
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fb_type = GL_UNSIGNED_SHORT_5_6_5;
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fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
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configs = driCreateConfigs(fb_format, fb_type,
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depth_bits_array, stencil_bits_array,
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depth_buffer_factor, back_buffer_modes,
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msaa_samples_array, 1, GL_TRUE);
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if (configs == NULL) {
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fprintf(stderr, "[%s:%u] Error creating FBConfig!\n",
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/* Mark the visual as slow if there are "fake" stencil bits.
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for (i = 0; configs[i]; i++) {
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m = &configs[i]->modes;
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if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
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m->visualRating = GLX_SLOW_CONFIG;
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return (const __DRIconfig **) configs;
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/* Create the device specific screen private data struct.
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static mach64ScreenRec *
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mach64CreateScreen( __DRIscreen *sPriv )
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mach64ScreenPtr mach64Screen;
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ATIDRIPtr serverInfo = (ATIDRIPtr)sPriv->pDevPriv;
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if (sPriv->devPrivSize != sizeof(ATIDRIRec)) {
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fprintf(stderr,"\nERROR! sizeof(ATIDRIRec) does not match passed size from device driver\n");
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if ( MACH64_DEBUG & DEBUG_VERBOSE_DRI )
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fprintf( stderr, "%s\n", __FUNCTION__ );
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/* Allocate the private area */
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mach64Screen = (mach64ScreenPtr) CALLOC( sizeof(*mach64Screen) );
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if ( !mach64Screen ) return NULL;
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/* parse information in __driConfigOptions */
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driParseOptionInfo (&mach64Screen->optionCache,
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__driConfigOptions, __driNConfigOptions);
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mach64Screen->IsPCI = serverInfo->IsPCI;
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drm_mach64_getparam_t gp;
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gp.param = MACH64_PARAM_IRQ_NR;
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gp.value = (void *) &mach64Screen->irq;
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ret = drmCommandWriteRead( sPriv->fd, DRM_MACH64_GETPARAM,
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fprintf(stderr, "DRM_MACH64_GETPARAM (MACH64_PARAM_IRQ_NR): %d\n", ret);
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FREE( mach64Screen );
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mach64Screen->mmio.handle = serverInfo->regs;
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mach64Screen->mmio.size = serverInfo->regsSize;
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if ( drmMap( sPriv->fd,
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mach64Screen->mmio.handle,
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mach64Screen->mmio.size,
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(drmAddressPtr)&mach64Screen->mmio.map ) != 0 ) {
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FREE( mach64Screen );
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mach64Screen->buffers = drmMapBufs( sPriv->fd );
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if ( !mach64Screen->buffers ) {
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drmUnmap( (drmAddress)mach64Screen->mmio.map,
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mach64Screen->mmio.size );
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FREE( mach64Screen );
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if ( !mach64Screen->IsPCI ) {
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mach64Screen->agpTextures.handle = serverInfo->agp;
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mach64Screen->agpTextures.size = serverInfo->agpSize;
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if ( drmMap( sPriv->fd,
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mach64Screen->agpTextures.handle,
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mach64Screen->agpTextures.size,
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(drmAddressPtr)&mach64Screen->agpTextures.map ) ) {
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drmUnmapBufs( mach64Screen->buffers );
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drmUnmap( (drmAddress)mach64Screen->mmio.map, mach64Screen->mmio.size );
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FREE( mach64Screen );
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mach64Screen->AGPMode = serverInfo->AGPMode;
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mach64Screen->chipset = serverInfo->chipset;
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mach64Screen->width = serverInfo->width;
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mach64Screen->height = serverInfo->height;
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mach64Screen->mem = serverInfo->mem;
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mach64Screen->cpp = serverInfo->cpp;
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mach64Screen->frontOffset = serverInfo->frontOffset;
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mach64Screen->frontPitch = serverInfo->frontPitch;
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mach64Screen->backOffset = serverInfo->backOffset;
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mach64Screen->backPitch = serverInfo->backPitch;
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mach64Screen->depthOffset = serverInfo->depthOffset;
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mach64Screen->depthPitch = serverInfo->depthPitch;
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mach64Screen->texOffset[MACH64_CARD_HEAP] = serverInfo->textureOffset;
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mach64Screen->texSize[MACH64_CARD_HEAP] = serverInfo->textureSize;
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mach64Screen->logTexGranularity[MACH64_CARD_HEAP] =
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serverInfo->logTextureGranularity;
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if ( mach64Screen->IsPCI ) {
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mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS - 1;
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mach64Screen->firstTexHeap = MACH64_CARD_HEAP;
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mach64Screen->texOffset[MACH64_AGP_HEAP] = 0;
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mach64Screen->texSize[MACH64_AGP_HEAP] = 0;
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mach64Screen->logTexGranularity[MACH64_AGP_HEAP] = 0;
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if (serverInfo->textureSize > 0) {
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mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS;
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mach64Screen->firstTexHeap = MACH64_CARD_HEAP;
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mach64Screen->numTexHeaps = MACH64_NR_TEX_HEAPS - 1;
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mach64Screen->firstTexHeap = MACH64_AGP_HEAP;
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mach64Screen->texOffset[MACH64_AGP_HEAP] = serverInfo->agpTextureOffset;
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mach64Screen->texSize[MACH64_AGP_HEAP] = serverInfo->agpSize;
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mach64Screen->logTexGranularity[MACH64_AGP_HEAP] = serverInfo->logAgpTextureGranularity;
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mach64Screen->driScreen = sPriv;
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if ( mach64Screen->irq != 0 ) {
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mach64Screen->extensions[i++] = &driSwapControlExtension.base;
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mach64Screen->extensions[i++] = &driMediaStreamCounterExtension.base;
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mach64Screen->extensions[i++] = NULL;
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sPriv->extensions = mach64Screen->extensions;
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/* Destroy the device specific screen private data struct.
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mach64DestroyScreen( __DRIscreen *driScreen )
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mach64ScreenRec *mach64Screen = (mach64ScreenRec *) driScreen->private;
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if ( MACH64_DEBUG & DEBUG_VERBOSE_DRI )
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fprintf( stderr, "%s\n", __FUNCTION__ );
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if ( !mach64Screen->IsPCI ) {
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drmUnmap( (drmAddress)mach64Screen->agpTextures.map,
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mach64Screen->agpTextures.size );
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drmUnmapBufs( mach64Screen->buffers );
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drmUnmap( (drmAddress)mach64Screen->mmio.map, mach64Screen->mmio.size );
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FREE( mach64Screen );
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driScreen->private = NULL;
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/* Create and initialize the Mesa and driver specific pixmap buffer
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mach64CreateBuffer( __DRIscreen *driScrnPriv,
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__DRIdrawable *driDrawPriv,
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const struct gl_config *mesaVis,
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mach64ScreenPtr screen = (mach64ScreenPtr) driScrnPriv->private;
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return GL_FALSE; /* not implemented */
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struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
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driRenderbuffer *frontRb
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= driNewRenderbuffer(MESA_FORMAT_ARGB8888,
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screen->frontOffset, screen->frontPitch,
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mach64SetSpanFunctions(frontRb, mesaVis);
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_mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
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if (mesaVis->doubleBufferMode) {
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driRenderbuffer *backRb
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= driNewRenderbuffer(MESA_FORMAT_ARGB8888,
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screen->backOffset, screen->backPitch,
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mach64SetSpanFunctions(backRb, mesaVis);
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_mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
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if (mesaVis->depthBits == 16) {
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driRenderbuffer *depthRb
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= driNewRenderbuffer(MESA_FORMAT_Z16,
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screen->depthOffset, screen->depthPitch,
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mach64SetSpanFunctions(depthRb, mesaVis);
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_mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
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else if (mesaVis->depthBits == 24) {
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/* XXX I don't think 24-bit Z is supported - so this isn't used */
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driRenderbuffer *depthRb
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= driNewRenderbuffer(MESA_FORMAT_Z24_S8,
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screen->depthOffset, screen->depthPitch,
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mach64SetSpanFunctions(depthRb, mesaVis);
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_mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
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_mesa_add_soft_renderbuffers(fb,
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GL_FALSE, /* color */
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GL_FALSE, /* depth */
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mesaVis->stencilBits > 0,
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mesaVis->accumRedBits > 0,
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GL_FALSE, /* alpha */
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driDrawPriv->driverPrivate = (void *) fb;
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return (driDrawPriv->driverPrivate != NULL);
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mach64DestroyBuffer(__DRIdrawable *driDrawPriv)
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_mesa_reference_framebuffer((struct gl_framebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
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/* Copy the back color buffer to the front color buffer */
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mach64SwapBuffers(__DRIdrawable *dPriv)
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if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
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mach64ContextPtr mmesa;
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struct gl_context *ctx;
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mmesa = (mach64ContextPtr) dPriv->driContextPriv->driverPrivate;
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if (ctx->Visual.doubleBufferMode) {
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_mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */
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mach64CopyBuffer( dPriv );
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/* XXX this shouldn't be an error but we can't handle it for now */
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_mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__);
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/* Initialize the driver specific screen private data.
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mach64InitDriver( __DRIscreen *driScreen )
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driScreen->private = (void *) mach64CreateScreen( driScreen );
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if ( !driScreen->private ) {
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mach64DestroyScreen( driScreen );
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* This is the driver specific part of the createNewScreen entry point.
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* \todo maybe fold this into intelInitDriver
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* \return the struct gl_config supported by this driver
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static const __DRIconfig **
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mach64InitScreen(__DRIscreen *psp)
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static const __DRIversion ddx_expected = { 6, 4, 0 };
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static const __DRIversion dri_expected = { 4, 0, 0 };
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static const __DRIversion drm_expected = { 2, 0, 0 };
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ATIDRIPtr dri_priv = (ATIDRIPtr) psp->pDevPriv;
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if ( ! driCheckDriDdxDrmVersions2( "Mach64",
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&psp->dri_version, & dri_expected,
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&psp->ddx_version, & ddx_expected,
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&psp->drm_version, & drm_expected ) ) {
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if (!mach64InitDriver(psp))
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return mach64FillInModes( psp, dri_priv->cpp * 8, 16, 0, 1);
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const struct __DriverAPIRec driDriverAPI = {
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.InitScreen = mach64InitScreen,
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.DestroyScreen = mach64DestroyScreen,
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.CreateContext = mach64CreateContext,
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.DestroyContext = mach64DestroyContext,
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.CreateBuffer = mach64CreateBuffer,
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.DestroyBuffer = mach64DestroyBuffer,
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.SwapBuffers = mach64SwapBuffers,
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.MakeCurrent = mach64MakeCurrent,
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.UnbindContext = mach64UnbindContext,
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.GetDrawableMSC = driDrawableGetMSC32,
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.WaitForMSC = driWaitForMSC32,
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.SwapBuffersMSC = NULL
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/* This is the table of extensions that the loader will dlsym() for. */
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PUBLIC const __DRIextension *__driDriverExtensions[] = {
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&driCoreExtension.base,
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&driLegacyExtension.base,