radeon_screen.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/* $XFree86: xc/lib/GL/mesa/src/drv/radeon/radeon_screen.c,v 1.7 2003/03/26 20:43:51 tsi Exp $ */
/**************************************************************************

Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and
                     VA Linux Systems Inc., Fremont, California.

All Rights Reserved.

Permission is hereby granted, free of charge, to any person obtaining
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The above copyright notice and this permission notice (including the
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

**************************************************************************/

/**
 * \file radeon_screen.c
 * Screen initialization functions for the Radeon driver.
 *
 * \author Kevin E. Martin <[e-mail]>
 * \author  Gareth Hughes <[e-mail]>
 */

#include "glheader.h"
#include "imports.h"
#include "mtypes.h"
#include "framebuffer.h"
#include "renderbuffer.h"

#define STANDALONE_MMIO
#include "radeon_chipset.h"
#include "radeon_macros.h"
#include "radeon_screen.h"
#if !RADEON_COMMON
#include "radeon_context.h"
#include "radeon_span.h"
#include "radeon_tex.h"
#elif RADEON_COMMON && defined(RADEON_COMMON_FOR_R200)
#include "r200_context.h"
#include "r200_ioctl.h"
#include "r200_span.h"
#include "r200_tex.h"
#elif RADEON_COMMON && defined(RADEON_COMMON_FOR_R300)
#include "r300_context.h"
#include "r300_fragprog.h"
#include "r300_tex.h"
#include "radeon_span.h"
#endif

#include "utils.h"
#include "context.h"
#include "vblank.h"
#include "drirenderbuffer.h"

#include "GL/internal/dri_interface.h"

/* Radeon configuration
 */
#include "xmlpool.h"

#if !RADEON_COMMON	/* R100 */
PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
    DRI_CONF_SECTION_PERFORMANCE
        DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
        DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
        DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
        DRI_CONF_MAX_TEXTURE_UNITS(3,2,3)
        DRI_CONF_HYPERZ(false)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_QUALITY
        DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
        DRI_CONF_DEF_MAX_ANISOTROPY(1.0,"1.0,2.0,4.0,8.0,16.0")
        DRI_CONF_NO_NEG_LOD_BIAS(false)
        DRI_CONF_FORCE_S3TC_ENABLE(false)
        DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
        DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
        DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
        DRI_CONF_ALLOW_LARGE_TEXTURES(2)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_DEBUG
        DRI_CONF_NO_RAST(false)
    DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 14;

#elif RADEON_COMMON && defined(RADEON_COMMON_FOR_R200)

PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
    DRI_CONF_SECTION_PERFORMANCE
        DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
        DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
        DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
        DRI_CONF_MAX_TEXTURE_UNITS(6,2,6)
        DRI_CONF_HYPERZ(false)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_QUALITY
        DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
        DRI_CONF_DEF_MAX_ANISOTROPY(1.0,"1.0,2.0,4.0,8.0,16.0")
        DRI_CONF_NO_NEG_LOD_BIAS(false)
        DRI_CONF_FORCE_S3TC_ENABLE(false)
        DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
        DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
        DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
        DRI_CONF_ALLOW_LARGE_TEXTURES(2)
        DRI_CONF_TEXTURE_BLEND_QUALITY(1.0,"0.0:1.0")
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_DEBUG
        DRI_CONF_NO_RAST(false)
    DRI_CONF_SECTION_END
    DRI_CONF_SECTION_SOFTWARE
        DRI_CONF_NV_VERTEX_PROGRAM(false)
    DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 16;

extern const struct dri_extension blend_extensions[];
extern const struct dri_extension ARB_vp_extension[];
extern const struct dri_extension NV_vp_extension[];
extern const struct dri_extension ATI_fs_extension[];
extern const struct dri_extension point_extensions[];

#elif RADEON_COMMON && defined(RADEON_COMMON_FOR_R300)

/* TODO: integrate these into xmlpool.h! */
#define DRI_CONF_MAX_TEXTURE_IMAGE_UNITS(def,min,max) \
DRI_CONF_OPT_BEGIN_V(texture_image_units,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Number of texture image units") \
        DRI_CONF_DESC(de,"Anzahl der Textureinheiten") \
DRI_CONF_OPT_END

#define DRI_CONF_MAX_TEXTURE_COORD_UNITS(def,min,max) \
DRI_CONF_OPT_BEGIN_V(texture_coord_units,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Number of texture coordinate units") \
        DRI_CONF_DESC(de,"Anzahl der Texturkoordinateneinheiten") \
DRI_CONF_OPT_END

#define DRI_CONF_COMMAND_BUFFER_SIZE(def,min,max) \
DRI_CONF_OPT_BEGIN_V(command_buffer_size,int,def, # min ":" # max ) \
        DRI_CONF_DESC(en,"Size of command buffer (in KB)") \
        DRI_CONF_DESC(de,"Grösse des Befehlspuffers (in KB)") \
DRI_CONF_OPT_END

#define DRI_CONF_DISABLE_S3TC(def) \
DRI_CONF_OPT_BEGIN(disable_s3tc,bool,def) \
        DRI_CONF_DESC(en,"Disable S3TC compression") \
DRI_CONF_OPT_END

#define DRI_CONF_DISABLE_FALLBACK(def) \
DRI_CONF_OPT_BEGIN(disable_lowimpact_fallback,bool,def) \
        DRI_CONF_DESC(en,"Disable Low-impact fallback") \
DRI_CONF_OPT_END

#define DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(def) \
DRI_CONF_OPT_BEGIN(disable_stencil_two_side,bool,def) \
        DRI_CONF_DESC(en,"Disable GL_EXT_stencil_two_side") \
DRI_CONF_OPT_END

#define DRI_CONF_FP_OPTIMIZATION(def) \
DRI_CONF_OPT_BEGIN_V(fp_optimization,enum,def,"0:1") \
	DRI_CONF_DESC_BEGIN(en,"Fragment Program optimization") \
                DRI_CONF_ENUM(0,"Optimize for Speed") \
                DRI_CONF_ENUM(1,"Optimize for Quality") \
        DRI_CONF_DESC_END \
DRI_CONF_OPT_END

PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
	DRI_CONF_SECTION_PERFORMANCE
		DRI_CONF_TCL_MODE(DRI_CONF_TCL_CODEGEN)
		DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
		DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
		DRI_CONF_MAX_TEXTURE_IMAGE_UNITS(8, 2, 8)
		DRI_CONF_MAX_TEXTURE_COORD_UNITS(8, 2, 8)
		DRI_CONF_COMMAND_BUFFER_SIZE(8, 8, 32)
		DRI_CONF_DISABLE_FALLBACK(true)
		DRI_CONF_DISABLE_DOUBLE_SIDE_STENCIL(false)
	DRI_CONF_SECTION_END
	DRI_CONF_SECTION_QUALITY
		DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
		DRI_CONF_DEF_MAX_ANISOTROPY(1.0, "1.0,2.0,4.0,8.0,16.0")
		DRI_CONF_FORCE_S3TC_ENABLE(false)
		DRI_CONF_DISABLE_S3TC(false)
		DRI_CONF_COLOR_REDUCTION(DRI_CONF_COLOR_REDUCTION_DITHER)
		DRI_CONF_ROUND_MODE(DRI_CONF_ROUND_TRUNC)
		DRI_CONF_DITHER_MODE(DRI_CONF_DITHER_XERRORDIFF)
		DRI_CONF_FP_OPTIMIZATION(DRI_CONF_FP_OPTIMIZATION_SPEED)
	DRI_CONF_SECTION_END
	DRI_CONF_SECTION_DEBUG
		DRI_CONF_NO_RAST(false)
	DRI_CONF_SECTION_END
DRI_CONF_END;
static const GLuint __driNConfigOptions = 17;

#ifndef RADEON_DEBUG
int RADEON_DEBUG = 0;

static const struct dri_debug_control debug_control[] = {
	{"fall", DEBUG_FALLBACKS},
	{"tex", DEBUG_TEXTURE},
	{"ioctl", DEBUG_IOCTL},
	{"prim", DEBUG_PRIMS},
	{"vert", DEBUG_VERTS},
	{"state", DEBUG_STATE},
	{"code", DEBUG_CODEGEN},
	{"vfmt", DEBUG_VFMT},
	{"vtxf", DEBUG_VFMT},
	{"verb", DEBUG_VERBOSE},
	{"dri", DEBUG_DRI},
	{"dma", DEBUG_DMA},
	{"san", DEBUG_SANITY},
	{"sync", DEBUG_SYNC},
	{"pix", DEBUG_PIXEL},
	{"mem", DEBUG_MEMORY},
	{"allmsg", ~DEBUG_SYNC}, /* avoid the term "sync" because the parser uses strstr */
	{NULL, 0}
};
#endif /* RADEON_DEBUG */

#endif /* RADEON_COMMON && defined(RADEON_COMMON_FOR_R300) */

extern const struct dri_extension card_extensions[];

static int getSwapInfo( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );

static int
radeonGetParam(int fd, int param, void *value)
{
  int ret;
  drm_radeon_getparam_t gp;

  gp.param = param;
  gp.value = value;

  ret = drmCommandWriteRead( fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
  return ret;
}

static const __DRIconfig **
radeonFillInModes( __DRIscreenPrivate *psp,
		   unsigned pixel_bits, unsigned depth_bits,
		   unsigned stencil_bits, GLboolean have_back_buffer )
{
    __DRIconfig **configs;
    __GLcontextModes *m;
    unsigned depth_buffer_factor;
    unsigned back_buffer_factor;
    GLenum fb_format;
    GLenum fb_type;
    int i;

    /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
     * enough to add support.  Basically, if a context is created with an
     * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
     * will never be used.
     */
    static const GLenum back_buffer_modes[] = {
	GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */
    };

    u_int8_t depth_bits_array[2];
    u_int8_t stencil_bits_array[2];


    depth_bits_array[0] = depth_bits;
    depth_bits_array[1] = 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.
     */
    stencil_bits_array[0] = 0;
    stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;

    depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
    back_buffer_factor  = (have_back_buffer) ? 2 : 1;

    if ( pixel_bits == 16 ) {
        fb_format = GL_RGB;
        fb_type = GL_UNSIGNED_SHORT_5_6_5;
    }
    else {
        fb_format = GL_BGRA;
        fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
    }

    configs = driCreateConfigs(fb_format, fb_type,
			       depth_bits_array, stencil_bits_array,
			       depth_buffer_factor,
			       back_buffer_modes, back_buffer_factor);
    if (configs == NULL) {
	fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
		 __func__, __LINE__ );
	return NULL;
    }

    /* Mark the visual as slow if there are "fake" stencil bits.
     */
    for (i = 0; configs[i]; i++) {
	m = &configs[i]->modes;
	if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
	    m->visualRating = GLX_SLOW_CONFIG;
	}
    }

    return (const __DRIconfig **) configs;
}

#if !RADEON_COMMON
static const __DRItexOffsetExtension radeonTexOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
    radeonSetTexOffset,
};
#endif

#if RADEON_COMMON && defined(RADEON_COMMON_FOR_R200)
static const __DRIallocateExtension r200AllocateExtension = {
    { __DRI_ALLOCATE, __DRI_ALLOCATE_VERSION },
    r200AllocateMemoryMESA,
    r200FreeMemoryMESA,
    r200GetMemoryOffsetMESA
};

static const __DRItexOffsetExtension r200texOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
   r200SetTexOffset,
};
#endif

#if RADEON_COMMON && defined(RADEON_COMMON_FOR_R300)
static const __DRItexOffsetExtension r300texOffsetExtension = {
    { __DRI_TEX_OFFSET, __DRI_TEX_OFFSET_VERSION },
   r300SetTexOffset,
};
#endif

/* Create the device specific screen private data struct.
 */
static radeonScreenPtr
radeonCreateScreen( __DRIscreenPrivate *sPriv )
{
   radeonScreenPtr screen;
   RADEONDRIPtr dri_priv = (RADEONDRIPtr)sPriv->pDevPriv;
   unsigned char *RADEONMMIO;
   int i;
   int ret;
   uint32_t temp;

   if (sPriv->devPrivSize != sizeof(RADEONDRIRec)) {
      fprintf(stderr,"\nERROR!  sizeof(RADEONDRIRec) does not match passed size from device driver\n");
      return GL_FALSE;
   }

   /* Allocate the private area */
   screen = (radeonScreenPtr) CALLOC( sizeof(*screen) );
   if ( !screen ) {
      __driUtilMessage("%s: Could not allocate memory for screen structure",
		       __FUNCTION__);
      return NULL;
   }

#if DO_DEBUG && RADEON_COMMON && defined(RADEON_COMMON_FOR_R300)
	RADEON_DEBUG = driParseDebugString(getenv("RADEON_DEBUG"), debug_control);
#endif

   /* parse information in __driConfigOptions */
   driParseOptionInfo (&screen->optionCache,
		       __driConfigOptions, __driNConfigOptions);

   /* This is first since which regions we map depends on whether or
    * not we are using a PCI card.
    */
   screen->card_type = (dri_priv->IsPCI ? RADEON_CARD_PCI : RADEON_CARD_AGP);
   {
      int ret;
      ret = radeonGetParam( sPriv->fd, RADEON_PARAM_GART_BUFFER_OFFSET,
			    &screen->gart_buffer_offset);

      if (ret) {
	 FREE( screen );
	 fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_GART_BUFFER_OFFSET): %d\n", ret);
	 return NULL;
      }

      ret = radeonGetParam( sPriv->fd, RADEON_PARAM_GART_BASE,
			    &screen->gart_base);
      if (ret) {
	 FREE( screen );
	 fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_GART_BASE): %d\n", ret);
	 return NULL;
      }

      ret = radeonGetParam( sPriv->fd, RADEON_PARAM_IRQ_NR,
			    &screen->irq);
      if (ret) {
	 FREE( screen );
	 fprintf(stderr, "drm_radeon_getparam_t (RADEON_PARAM_IRQ_NR): %d\n", ret);
	 return NULL;
      }
      screen->drmSupportsCubeMapsR200 = (sPriv->drm_version.minor >= 7);
      screen->drmSupportsBlendColor = (sPriv->drm_version.minor >= 11);
      screen->drmSupportsTriPerf = (sPriv->drm_version.minor >= 16);
      screen->drmSupportsFragShader = (sPriv->drm_version.minor >= 18);
      screen->drmSupportsPointSprites = (sPriv->drm_version.minor >= 13);
      screen->drmSupportsCubeMapsR100 = (sPriv->drm_version.minor >= 15);
      screen->drmSupportsVertexProgram = (sPriv->drm_version.minor >= 25);
   }

   screen->mmio.handle = dri_priv->registerHandle;
   screen->mmio.size   = dri_priv->registerSize;