/* Called via glXFreeMemoryMESA() */
void intelFreeMemoryMESA(__DRInativeDisplay *dpy, int scrn, GLvoid *pointer)
{
GET_CURRENT_CONTEXT(ctx);
if (INTEL_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s %p\n", __FUNCTION__, pointer);
if (!ctx || INTEL_CONTEXT(ctx) == 0) {
fprintf(stderr, "%s: no context\n", __FUNCTION__);
return;
}
intelFreeAGP( INTEL_CONTEXT(ctx), pointer );
}
static GLboolean
check_color( const GLcontext *ctx, GLenum type, GLenum format,
const struct gl_pixelstore_attrib *packing,
const void *pixels, GLint sz, GLint pitch )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLuint cpp = intel->intelScreen->cpp;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
if ( (pitch & 63) ||
ctx->_ImageTransferState ||
packing->SwapBytes ||
packing->LsbFirst) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: failed 1\n", __FUNCTION__);
return GL_FALSE;
}
if ( type == GL_UNSIGNED_INT_8_8_8_8_REV &&
cpp == 4 &&
format == GL_BGRA ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: passed 2\n", __FUNCTION__);
return GL_TRUE;
}
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: failed\n", __FUNCTION__);
return GL_FALSE;
}
static GLboolean i915UpdateTexUnit( GLcontext *ctx, GLuint unit )
{
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
if (texUnit->_ReallyEnabled &&
INTEL_CONTEXT(ctx)->intelScreen->tex.size < 2048 * 1024)
return GL_FALSE;
switch (texUnit->_ReallyEnabled) {
case TEXTURE_1D_BIT:
case TEXTURE_2D_BIT:
return (enable_tex_2d( ctx, unit ) &&
enable_tex_common( ctx, unit ));
case TEXTURE_RECT_BIT:
return (enable_tex_rect( ctx, unit ) &&
enable_tex_common( ctx, unit ));
case TEXTURE_CUBE_BIT:
return (enable_tex_cube( ctx, unit ) &&
enable_tex_common( ctx, unit ));
case TEXTURE_3D_BIT:
return (enable_tex_2d( ctx, unit ) &&
enable_tex_common( ctx, unit ) &&
enable_tex_3d( ctx, unit));
case 0:
return disable_tex( ctx, unit );
default:
return GL_FALSE;
}
}
void intelFinish( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
intelFlush( ctx );
intelWaitForIdle( intel );
intelCheckFrontRotate(ctx);
}
static void intelRenderPrimitive( GLcontext *ctx, GLenum prim )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (0)
fprintf(stderr, "%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(prim));
/* Let some clipping routines know which primitive they're dealing
* with.
*/
intel->render_primitive = prim;
/* Shortcircuit this when called from t_dd_rendertmp.h for unfilled
* triangles. The rasterized primitive will always be reset by
* lower level functions in that case, potentially pingponging the
* state:
*/
if (reduced_prim[prim] == GL_TRIANGLES &&
(ctx->_TriangleCaps & DD_TRI_UNFILLED))
return;
/* Set some primitive-dependent state and Start? a new primitive.
*/
intelRasterPrimitive( ctx, reduced_prim[prim], hw_prim[prim] );
}
/* Move locking out to get reasonable span performance.
*/
void intelSpanRenderStart( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
intelFlush(&intel->ctx);
LOCK_HARDWARE(intel);
intelWaitForIdle(intel);
}
/* This version of AllocateMemoryMESA allocates only agp memory, and
* only does so after the point at which the driver has been
* initialized.
*
* Theoretically a valid context isn't required. However, in this
* implementation, it is, as I'm using the hardware lock to protect
* the kernel data structures, and the current context to get the
* device fd.
*/
void *intelAllocateMemoryMESA(__DRInativeDisplay *dpy, int scrn,
GLsizei size, GLfloat readfreq,
GLfloat writefreq, GLfloat priority)
{
GET_CURRENT_CONTEXT(ctx);
if (INTEL_DEBUG & DEBUG_IOCTL)
fprintf(stderr, "%s sz %d %f/%f/%f\n", __FUNCTION__, size, readfreq,
writefreq, priority);
if (getenv("INTEL_NO_ALLOC"))
return NULL;
if (!ctx || INTEL_CONTEXT(ctx) == 0)
return NULL;
return intelAllocateAGP( INTEL_CONTEXT(ctx), size );
}
void intelDestroyBatchBuffer( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (intel->alloc.ptr) {
intelFreeAGP( intel, intel->alloc.ptr );
intel->alloc.ptr = 0;
}
}
static void do_draw_pix( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint pitch,
const void *pixels,
GLuint dest )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = intel->driDrawable;
drm_clip_rect_t *box = dPriv->pClipRects;
int nbox = dPriv->numClipRects;
int i;
int src_offset = intelAgpOffsetFromVirtual( intel, pixels);
int src_pitch = pitch;
assert(src_offset != ~0); /* should be caught earlier */
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
if (ctx->DrawBuffer)
{
y -= height; /* cope with pixel zoom */
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
return;
}
y = dPriv->h - y - height; /* convert from gl to hardware coords */
x += dPriv->x;
y += dPriv->y;
for (i = 0 ; i < nbox ; i++ )
{
GLint bx, by, bw, bh;
if (intersect_region(box + i, x, y, width, height,
&bx, &by, &bw, &bh)) {
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
intel->intelScreen->front.pitch,
intel->drawRegion->offset,
bx - x, by - y,
bx, by,
bw, bh );
}
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
}
/**
* Check if we need to rotate/warp the front color buffer to the
* rotated screen. We generally need to do this when we get a glFlush
* or glFinish after drawing to the front color buffer.
*/
static void
intelCheckFrontRotate(GLcontext *ctx)
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
if (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
intelScreenPrivate *screen = intel->intelScreen;
if (screen->current_rotation != 0) {
__DRIdrawablePrivate *dPriv = intel->driDrawable;
intelRotateWindow(intel, dPriv, BUFFER_BIT_FRONT_LEFT);
}
}
}
/**
* NOT directly called via glFlush.
*/
void intelFlush( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
if (intel->Fallback)
_swrast_flush( ctx );
INTEL_FIREVERTICES( intel );
if (intel->batch.size != intel->batch.space)
intelFlushBatch( intel, GL_FALSE );
}
static void intel_flush_inline_primitive( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
GLuint used = intel->batch.ptr - intel->prim.start_ptr;
GLuint vertcount;
assert(intel->prim.primitive != ~0);
if (1) {
/* Check vertex size against the vertex we're specifying to
* hardware. If it's wrong, ditch the primitive.
*/
if (!intel->vtbl.check_vertex_size( intel, intel->vertex_size ))
goto do_discard;
vertcount = (used - 4)/ (intel->vertex_size * 4);
if (!vertcount)
goto do_discard;
if (vertcount * intel->vertex_size * 4 != used - 4) {
fprintf(stderr, "vertex size confusion %d %d\n", used,
intel->vertex_size * vertcount * 4);
goto do_discard;
}
if (bad_prim_vertex_nr( intel->prim.primitive, vertcount )) {
fprintf(stderr, "bad_prim_vertex_nr %x %d\n", intel->prim.primitive,
vertcount);
goto do_discard;
}
}
if (used < 8)
goto do_discard;
*(int *)intel->prim.start_ptr = (_3DPRIMITIVE |
intel->prim.primitive |
(used/4-2));
goto finished;
do_discard:
intel->batch.ptr -= used;
intel->batch.space += used;
assert(intel->batch.space >= 0);
finished:
intel->prim.primitive = ~0;
intel->prim.start_ptr = 0;
intel->prim.flush = 0;
}
/*
* This function is called to specify which buffer to read and write
* for software rasterization (swrast) fallbacks. This doesn't necessarily
* correspond to glDrawBuffer() or glReadBuffer() calls.
*/
static void intelSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer,
GLuint bufferBit)
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (bufferBit == BUFFER_BIT_FRONT_LEFT) {
intel->drawMap = (char *)intel->driScreen->pFB;
intel->readMap = (char *)intel->driScreen->pFB;
} else if (bufferBit == BUFFER_BIT_BACK_LEFT) {
intel->drawMap = intel->intelScreen->back.map;
intel->readMap = intel->intelScreen->back.map;
} else {
ASSERT(0);
}
}
/* System to flush dma and emit state changes based on the rasterized
* primitive.
*/
static void intelRasterPrimitive( GLcontext *ctx, GLenum rprim, GLuint hwprim )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (0)
fprintf(stderr, "%s %s %x\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(rprim), hwprim);
intel->vtbl.reduced_primitive_state( intel, rprim );
/* Start a new primitive. Arrange to have it flushed later on.
*/
if (hwprim != intel->prim.primitive)
intelStartInlinePrimitive( intel, hwprim );
}
static void intelFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
GLuint n )
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
const GLuint vertsize = intel->vertex_size;
GLuint *vb = intelExtendInlinePrimitive( intel, (n-2) * 3 * vertsize );
GLubyte *vertptr = (GLubyte *)intel->verts;
const GLuint *start = (const GLuint *)V(elts[0]);
int i,j;
for (i = 2 ; i < n ; i++) {
COPY_DWORDS( j, vb, vertsize, V(elts[i-1]) );
COPY_DWORDS( j, vb, vertsize, V(elts[i]) );
COPY_DWORDS( j, vb, vertsize, start );
}
}
/* Called via glXGetMemoryOffsetMESA()
*
* Returns offset of pointer from the start of agp aperture.
*/
GLuint intelGetMemoryOffsetMESA(__DRInativeDisplay *dpy, int scrn,
const GLvoid *pointer)
{
GET_CURRENT_CONTEXT(ctx);
intelContextPtr intel;
if (!ctx || !(intel = INTEL_CONTEXT(ctx)) ) {
fprintf(stderr, "%s: no context\n", __FUNCTION__);
return ~0;
}
if (!intelIsAgpMemory( intel, pointer, 0 ))
return ~0;
return intelAgpOffsetFromVirtual( intel, pointer );
}
void intelInitBatchBuffer( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (!intel->intelScreen->allow_batchbuffer || getenv("INTEL_NO_BATCH")) {
intel->alloc.size = 8 * 1024;
intel->alloc.ptr = malloc( intel->alloc.size );
intel->alloc.offset = 0;
}
else {
switch (intel->intelScreen->deviceID) {
case PCI_CHIP_I865_G:
/* HW bug? Seems to crash if batchbuffer crosses 4k boundary.
*/
intel->alloc.size = 8 * 1024;
break;
default:
/* This is the smallest amount of memory the kernel deals with.
* We'd ideally like to make this smaller.
*/
intel->alloc.size = 1 << intel->intelScreen->logTextureGranularity;
break;
}
intel->alloc.ptr = intelAllocateAGP( intel, intel->alloc.size );
if (intel->alloc.ptr)
intel->alloc.offset =
intelAgpOffsetFromVirtual( intel, intel->alloc.ptr );
}
if (!intel->alloc.ptr) {
FALLBACK(intel, INTEL_FALLBACK_NO_BATCHBUFFER, 1);
}
else {
intel->prim.flush = 0;
intel->vtbl.emit_invarient_state( intel );
/* Make sure this gets to the hardware, even if we have no cliprects:
*/
LOCK_HARDWARE( intel );
intelFlushBatchLocked( intel, GL_TRUE, GL_FALSE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
}
static void intelRunPipeline( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (intel->NewGLState) {
if (intel->NewGLState & _NEW_TEXTURE) {
intel->vtbl.update_texture_state( intel );
}
if (!intel->Fallback) {
if (intel->NewGLState & _INTEL_NEW_RENDERSTATE)
intelChooseRenderState( ctx );
}
intel->NewGLState = 0;
}
_tnl_run_pipeline( ctx );
}
static GLboolean
clip_pixelrect( const GLcontext *ctx,
const GLframebuffer *buffer,
GLint *x, GLint *y,
GLsizei *width, GLsizei *height,
GLint *size )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
/* left clipping */
if (*x < buffer->_Xmin) {
*width -= (buffer->_Xmin - *x);
*x = buffer->_Xmin;
}
/* right clipping */
if (*x + *width > buffer->_Xmax)
*width -= (*x + *width - buffer->_Xmax - 1);
if (*width <= 0)
return GL_FALSE;
/* bottom clipping */
if (*y < buffer->_Ymin) {
*height -= (buffer->_Ymin - *y);
*y = buffer->_Ymin;
}
/* top clipping */
if (*y + *height > buffer->_Ymax)
*height -= (*y + *height - buffer->_Ymax - 1);
if (*height <= 0)
return GL_FALSE;
*size = ((*y + *height - 1) * intel->intelScreen->frontPitch +
(*x + *width - 1) * intel->intelScreen->cpp);
return GL_TRUE;
}
static void intelRenderClippedPoly( GLcontext *ctx, const GLuint *elts,
GLuint n )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
GLuint prim = intel->render_primitive;
/* Render the new vertices as an unclipped polygon.
*/
{
GLuint *tmp = VB->Elts;
VB->Elts = (GLuint *)elts;
tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n,
PRIM_BEGIN|PRIM_END );
VB->Elts = tmp;
}
/* Restore the render primitive
*/
if (prim != GL_POLYGON)
tnl->Driver.Render.PrimitiveNotify( ctx, prim );
}
static void intelRenderFinish( GLcontext *ctx )
{
if (INTEL_CONTEXT(ctx)->RenderIndex & INTEL_FALLBACK_BIT)
_swrast_flush( ctx );
}
static void intelRenderStart( GLcontext *ctx )
{
INTEL_CONTEXT(ctx)->vtbl.render_start( INTEL_CONTEXT(ctx) );
}
void intelClearWithBlit(GLcontext *ctx, GLbitfield flags, GLboolean all,
GLint cx1, GLint cy1, GLint cw, GLint ch)
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
intelScreenPrivate *intelScreen = intel->intelScreen;
GLuint clear_depth, clear_color;
GLint cx, cy;
GLint pitch = intelScreen->frontPitch;
GLint cpp = intelScreen->cpp;
GLint i;
GLuint BR13, CMD, D_CMD;
BATCH_LOCALS;
clear_color = intel->ClearColor;
clear_depth = 0;
if (flags & BUFFER_BIT_DEPTH) {
clear_depth = (GLuint)(ctx->Depth.Clear * intel->ClearDepth);
}
if (flags & BUFFER_BIT_STENCIL) {
clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
}
switch(cpp) {
case 2:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
case 4:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24) | (1<<25);
CMD = (XY_COLOR_BLT_CMD |
XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
D_CMD = XY_COLOR_BLT_CMD;
if (flags & BUFFER_BIT_DEPTH) D_CMD |= XY_COLOR_BLT_WRITE_RGB;
if (flags & BUFFER_BIT_STENCIL) D_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
break;
default:
BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
}
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
/* flip top to bottom */
cy = intel->driDrawable->h-cy1-ch;
cx = cx1 + intel->drawX;
cy += intel->drawY;
/* adjust for page flipping */
if ( intel->sarea->pf_current_page == 1 ) {
GLuint tmp = flags;
flags &= ~(BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT);
if ( tmp & BUFFER_BIT_FRONT_LEFT ) flags |= BUFFER_BIT_BACK_LEFT;
if ( tmp & BUFFER_BIT_BACK_LEFT ) flags |= BUFFER_BIT_FRONT_LEFT;
}
for (i = 0 ; i < intel->numClipRects ; i++)
{
drm_clip_rect_t *box = &intel->pClipRects[i];
drm_clip_rect_t b;
if (!all) {
GLint x = box[i].x1;
GLint y = box[i].y1;
GLint w = box[i].x2 - x;
GLint h = box[i].y2 - y;
if (x < cx) w -= cx - x, x = cx;
if (y < cy) h -= cy - y, y = cy;
if (x + w > cx + cw) w = cx + cw - x;
if (y + h > cy + ch) h = cy + ch - y;
if (w <= 0) continue;
if (h <= 0) continue;
b.x1 = x;
b.y1 = y;
b.x2 = x + w;
b.y2 = y + h;
} else {
b = *box;
}
if (b.x1 > b.x2 ||
b.y1 > b.y2 ||
b.x2 > intelScreen->width ||
b.y2 > intelScreen->height)
continue;
if ( flags & BUFFER_BIT_FRONT_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->frontOffset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & BUFFER_BIT_BACK_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->backOffset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & (BUFFER_BIT_STENCIL | BUFFER_BIT_DEPTH) ) {
BEGIN_BATCH( 6);
OUT_BATCH( D_CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->depthOffset );
OUT_BATCH( clear_depth );
ADVANCE_BATCH();
}
}
}
intelFlushBatchLocked( intel, GL_TRUE, GL_FALSE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
void intelChooseRenderState(GLcontext *ctx)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLuint flags = ctx->_TriangleCaps;
const struct gl_fragment_program *fprog = ctx->FragmentProgram._Current;
GLboolean have_wpos = (fprog && (fprog->Base.InputsRead & FRAG_BIT_WPOS));
GLuint index = 0;
if (INTEL_DEBUG & DEBUG_STATE)
fprintf(stderr,"\n%s\n",__FUNCTION__);
if ((flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) || have_wpos) {
if (flags & ANY_RASTER_FLAGS) {
if (flags & DD_TRI_LIGHT_TWOSIDE) index |= INTEL_TWOSIDE_BIT;
if (flags & DD_TRI_OFFSET) index |= INTEL_OFFSET_BIT;
if (flags & DD_TRI_UNFILLED) index |= INTEL_UNFILLED_BIT;
}
if (have_wpos) {
intel->draw_point = intel_wpos_point;
intel->draw_line = intel_wpos_line;
intel->draw_tri = intel_wpos_triangle;
/* Make sure these get called:
*/
index |= INTEL_FALLBACK_BIT;
}
else {
intel->draw_point = intel_draw_point;
intel->draw_line = intel_draw_line;
intel->draw_tri = intel_draw_triangle;
}
/* Hook in fallbacks for specific primitives.
*/
if (flags & ANY_FALLBACK_FLAGS)
{
if (flags & POINT_FALLBACK)
intel->draw_point = intel_fallback_point;
if (flags & LINE_FALLBACK)
intel->draw_line = intel_fallback_line;
if (flags & TRI_FALLBACK)
intel->draw_tri = intel_fallback_tri;
if ((flags & DD_TRI_STIPPLE) && !intel->hw_stipple)
intel->draw_tri = intel_fallback_tri;
if (flags & DD_POINT_ATTEN)
intel->draw_point = intel_atten_point;
index |= INTEL_FALLBACK_BIT;
}
}
if (intel->RenderIndex != index) {
intel->RenderIndex = index;
tnl->Driver.Render.Points = rast_tab[index].points;
tnl->Driver.Render.Line = rast_tab[index].line;
tnl->Driver.Render.Triangle = rast_tab[index].triangle;
tnl->Driver.Render.Quad = rast_tab[index].quad;
if (index == 0) {
tnl->Driver.Render.PrimTabVerts = intel_render_tab_verts;
tnl->Driver.Render.PrimTabElts = intel_render_tab_elts;
tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
tnl->Driver.Render.ClippedPolygon = intelFastRenderClippedPoly;
} else {
tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
tnl->Driver.Render.ClippedLine = intelRenderClippedLine;
tnl->Driver.Render.ClippedPolygon = intelRenderClippedPoly;
}
}
}
static void do_draw_pix( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint pitch,
const void *pixels,
GLuint dest )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
__DRIdrawablePrivate *dPriv = intel->driDrawable;
drm_clip_rect_t *box = dPriv->pClipRects;
int nbox = dPriv->numClipRects;
int i;
int size;
int src_offset = intelAgpOffsetFromVirtual( intel, pixels);
int src_pitch = pitch;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
if (ctx->DrawBuffer)
{
y -= height; /* cope with pixel zoom */
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height,
&size)) {
UNLOCK_HARDWARE( intel );
return;
}
y = dPriv->h - y - height; /* convert from gl to hardware coords */
x += dPriv->x;
y += dPriv->y;
for (i = 0 ; i < nbox ; i++ )
{
GLint bx = box[i].x1;
GLint by = box[i].y1;
GLint bw = box[i].x2 - bx;
GLint bh = box[i].y2 - by;
if (bx < x) bw -= x - bx, bx = x;
if (by < y) bh -= y - by, by = y;
if (bx + bw > x + width) bw = x + width - bx;
if (by + bh > y + height) bh = y + height - by;
if (bw <= 0) continue;
if (bh <= 0) continue;
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
intel->intelScreen->frontPitch,
intel->drawOffset,
bx - x, by - y,
bx, by,
bw, bh );
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
}
GLboolean
i830TryTextureDrawPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
i830ContextPtr i830 = I830_CONTEXT(ctx);
GLint pitch = unpack->RowLength ? unpack->RowLength : width;
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int textureFormat;
GLenum glTextureFormat;
int dst_offset = i830->meta.Buffer[I830_DESTREG_CBUFADDR2];
int src_offset = intelAgpOffsetFromVirtual( intel, pixels );
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* Todo -- upload images that aren't in agp space, then texture
* from them.
*/
if ( !intelIsAgpMemory( intel, pixels, pitch*height ) ) {
fprintf(stderr, "%s: intelIsAgpMemory failed\n", __FUNCTION__);
return GL_FALSE;
}
/* Todo -- don't want to clobber all the drawing state like we do
* for readpixels -- most of this state can be handled just fine.
*/
if ( ctx->_ImageTransferState ||
unpack->SwapBytes ||
unpack->LsbFirst ||
ctx->Color.AlphaEnabled ||
ctx->Depth.Test ||
ctx->Fog.Enabled ||
ctx->Scissor.Enabled ||
ctx->Stencil.Enabled ||
!ctx->Color.ColorMask[0] ||
!ctx->Color.ColorMask[1] ||
!ctx->Color.ColorMask[2] ||
!ctx->Color.ColorMask[3] ||
ctx->Color.ColorLogicOpEnabled ||
ctx->Texture._EnabledUnits ||
ctx->Depth.OcclusionTest) {
fprintf(stderr, "%s: other tests failed\n", __FUNCTION__);
return GL_FALSE;
}
/* Todo -- remove these restrictions:
*/
if (ctx->Pixel.ZoomX != 1.0F ||
ctx->Pixel.ZoomY != -1.0F)
return GL_FALSE;
switch (type) {
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
if (format != GL_BGRA) return GL_FALSE;
textureFormat = MAPSURF_16BIT | MT_16BIT_ARGB1555;
glTextureFormat = GL_RGBA;
break;
case GL_UNSIGNED_SHORT_5_6_5:
if (format != GL_RGB) return GL_FALSE;
textureFormat = MAPSURF_16BIT | MT_16BIT_RGB565;
glTextureFormat = GL_RGB;
break;
case GL_UNSIGNED_SHORT_8_8_MESA:
if (format != GL_YCBCR_MESA) return GL_FALSE;
textureFormat = (MAPSURF_422 | MT_422_YCRCB_SWAPY
/* | TM0S1_COLORSPACE_CONVERSION */
);
glTextureFormat = GL_YCBCR_MESA;
break;
case GL_UNSIGNED_SHORT_8_8_REV_MESA:
if (format != GL_YCBCR_MESA) return GL_FALSE;
textureFormat = (MAPSURF_422 | MT_422_YCRCB_NORMAL
/* | TM0S1_COLORSPACE_CONVERSION */
);
glTextureFormat = GL_YCBCR_MESA;
break;
case GL_UNSIGNED_INT_8_8_8_8_REV:
if (format != GL_BGRA) return GL_FALSE;
textureFormat = MAPSURF_32BIT | MT_32BIT_ARGB8888;
glTextureFormat = GL_RGBA;
break;
default:
fprintf(stderr, "%s: destFormat failed\n", __FUNCTION__);
return GL_FALSE;
}
intelFlush( ctx );
SET_STATE( i830, meta );
LOCK_HARDWARE( intel );
{
intelWaitForIdle( intel ); /* required by GL */
y -= height; /* cope with pixel zoom */
if (!driClipRectToFramebuffer(ctx->ReadBuffer, &x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
SET_STATE(i830, state);
fprintf(stderr, "%s: cliprect failed\n", __FUNCTION__);
return GL_TRUE;
}
y = dPriv->h - y - height;
set_initial_state( i830 );
/* Set the pixel image up as a rectangular texture.
*/
set_tex_rect_source( i830,
src_offset,
width,
height,
pitch, /* XXXX!!!! -- /2 sometimes */
textureFormat );
enable_texture_blend_replace( i830 );
/* Draw to the current draw buffer:
*/
set_draw_offset( i830, dst_offset );
/* Draw a quad, use regular cliprects
*/
/* fprintf(stderr, "x: %d y: %d width %d height %d\n", x, y, width, height); */
draw_quad( i830,
x, x+width, y, y+height,
0, 255, 0, 0,
0, width, 0, height );
intelWindowMoved( intel );
}
UNLOCK_HARDWARE( intel );
intelFinish( ctx ); /* required by GL */
SET_STATE(i830, state);
return GL_TRUE;
}
static GLboolean
intelTryReadPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLint size = 0;
GLint pitch = pack->RowLength ? pack->RowLength : width;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* Only accelerate reading to agp buffers.
*/
if ( !intelIsAgpMemory(intel, pixels,
pitch * height * intel->intelScreen->cpp ) ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: dest not agp\n", __FUNCTION__);
return GL_FALSE;
}
/* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
* blitter:
*/
if (!pack->Invert) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__);
return GL_FALSE;
}
if (!check_color(ctx, type, format, pack, pixels, size, pitch))
return GL_FALSE;
switch ( intel->intelScreen->cpp ) {
case 4:
break;
default:
return GL_FALSE;
}
/* Although the blits go on the command buffer, need to do this and
* fire with lock held to guarentee cliprects and drawOffset are
* correct.
*
* This is an unusual situation however, as the code which flushes
* a full command buffer expects to be called unlocked. As a
* workaround, immediately flush the buffer on aquiring the lock.
*/
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
int src_offset = intel->drawOffset;
int src_pitch = intel->intelScreen->frontPitch;
int dst_offset = intelAgpOffsetFromVirtual( intel, pixels);
drm_clip_rect_t *box = dPriv->pClipRects;
int i;
if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height,
&size)) {
UNLOCK_HARDWARE( intel );
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s totally clipped -- nothing to do\n",
__FUNCTION__);
return GL_TRUE;
}
y = dPriv->h - y - height;
x += dPriv->x;
y += dPriv->y;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n",
src_pitch, pitch);
for (i = 0 ; i < nbox ; i++)
{
GLint bx = box[i].x1;
GLint by = box[i].y1;
GLint bw = box[i].x2 - bx;
GLint bh = box[i].y2 - by;
if (bx < x) bw -= x - bx, bx = x;
if (by < y) bh -= y - by, by = y;
if (bx + bw > x + width) bw = x + width - bx;
if (by + bh > y + height) bh = y + height - by;
if (bw <= 0) continue;
if (bh <= 0) continue;
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
pitch, dst_offset,
bx, by,
bx - x, by - y,
bw, bh );
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
return GL_TRUE;
}
static GLboolean
intelTryDrawPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLint pitch = unpack->RowLength ? unpack->RowLength : width;
GLuint dest;
GLuint cpp = intel->intelScreen->cpp;
GLint size = width * pitch * cpp;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
switch (format) {
case GL_RGB:
case GL_RGBA:
case GL_BGRA:
dest = intel->drawRegion->offset;
/* Planemask doesn't have full support in blits.
*/
if (!ctx->Color.ColorMask[RCOMP] ||
!ctx->Color.ColorMask[GCOMP] ||
!ctx->Color.ColorMask[BCOMP] ||
!ctx->Color.ColorMask[ACOMP]) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: planemask\n", __FUNCTION__);
return GL_FALSE;
}
/* Can't do conversions on agp reads/draws.
*/
if ( !intelIsAgpMemory( intel, pixels, size ) ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: not agp memory\n", __FUNCTION__);
return GL_FALSE;
}
if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) {
return GL_FALSE;
}
if (!check_color_per_fragment_ops(ctx)) {
return GL_FALSE;
}
if (ctx->Pixel.ZoomX != 1.0F ||
ctx->Pixel.ZoomY != -1.0F)
return GL_FALSE;
break;
default:
return GL_FALSE;
}
if ( intelIsAgpMemory(intel, pixels, size) )
{
do_draw_pix( ctx, x, y, width, height, pitch, pixels, dest );
return GL_TRUE;
}
else if (0)
{
/* Pixels is in regular memory -- get dma buffers and perform
* upload through them. No point doing this for regular uploads
* but once we remove some of the restrictions above (colormask,
* pixelformat conversion, zoom?, etc), this could be a win.
*/
}
else
return GL_FALSE;
return GL_FALSE;
}
static GLboolean
intelTryReadPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
GLvoid *pixels )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
GLint size = 0; /* not really used */
GLint pitch = pack->RowLength ? pack->RowLength : width;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
/* Only accelerate reading to agp buffers.
*/
if ( !intelIsAgpMemory(intel, pixels,
pitch * height * intel->intelScreen->cpp ) ) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: dest not agp\n", __FUNCTION__);
return GL_FALSE;
}
/* Need GL_PACK_INVERT_MESA to cope with upsidedown results from
* blitter:
*/
if (!pack->Invert) {
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__);
return GL_FALSE;
}
if (!check_color(ctx, type, format, pack, pixels, size, pitch))
return GL_FALSE;
switch ( intel->intelScreen->cpp ) {
case 4:
break;
default:
return GL_FALSE;
}
/* Although the blits go on the command buffer, need to do this and
* fire with lock held to guarentee cliprects and drawing offset are
* correct.
*
* This is an unusual situation however, as the code which flushes
* a full command buffer expects to be called unlocked. As a
* workaround, immediately flush the buffer on aquiring the lock.
*/
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
{
__DRIdrawablePrivate *dPriv = intel->driDrawable;
int nbox = dPriv->numClipRects;
int src_offset = intel->readRegion->offset;
int src_pitch = intel->intelScreen->front.pitch;
int dst_offset = intelAgpOffsetFromVirtual( intel, pixels);
drm_clip_rect_t *box = dPriv->pClipRects;
int i;
assert(dst_offset != ~0); /* should have been caught above */
if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s totally clipped -- nothing to do\n",
__FUNCTION__);
return GL_TRUE;
}
/* convert to screen coords (y=0=top) */
y = dPriv->h - y - height;
x += dPriv->x;
y += dPriv->y;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n",
src_pitch, pitch);
/* We don't really have to do window clipping for readpixels.
* The OpenGL spec says that pixels read from outside the
* visible window region (pixel ownership) have undefined value.
*/
for (i = 0 ; i < nbox ; i++)
{
GLint bx, by, bw, bh;
if (intersect_region(box+i, x, y, width, height,
&bx, &by, &bw, &bh)) {
intelEmitCopyBlitLocked( intel,
intel->intelScreen->cpp,
src_pitch, src_offset,
pitch, dst_offset,
bx, by,
bx - x, by - y,
bw, bh );
}
}
}
UNLOCK_HARDWARE( intel );
intelFinish( &intel->ctx );
return GL_TRUE;
}
GLboolean
i830TryTextureReadPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack,
GLvoid *pixels )
{
i830ContextPtr i830 = I830_CONTEXT(ctx);
intelContextPtr intel = INTEL_CONTEXT(ctx);
intelScreenPrivate *screen = i830->intel.intelScreen;
GLint pitch = pack->RowLength ? pack->RowLength : width;
__DRIdrawablePrivate *dPriv = i830->intel.driDrawable;
int textureFormat;
GLenum glTextureFormat;
int src_offset = i830->meta.Buffer[I830_DESTREG_CBUFADDR2];
int destOffset = intelAgpOffsetFromVirtual( &i830->intel, pixels);
int destFormat, depthFormat, destPitch;
drm_clip_rect_t tmp;
if (INTEL_DEBUG & DEBUG_PIXEL)
fprintf(stderr, "%s\n", __FUNCTION__);
if ( ctx->_ImageTransferState ||
pack->SwapBytes ||
pack->LsbFirst ||
!pack->Invert) {
fprintf(stderr, "%s: check_color failed\n", __FUNCTION__);
return GL_FALSE;
}
switch (screen->fbFormat) {
case DV_PF_565:
textureFormat = MAPSURF_16BIT | MT_16BIT_RGB565;
glTextureFormat = GL_RGB;
break;
case DV_PF_555:
textureFormat = MAPSURF_16BIT | MT_16BIT_ARGB1555;
glTextureFormat = GL_RGBA;
break;
case DV_PF_8888:
textureFormat = MAPSURF_32BIT | MT_32BIT_ARGB8888;
glTextureFormat = GL_RGBA;
break;
default:
fprintf(stderr, "%s: textureFormat failed %x\n", __FUNCTION__,
screen->fbFormat);
return GL_FALSE;
}
switch (type) {
case GL_UNSIGNED_SHORT_5_6_5:
if (format != GL_RGB) return GL_FALSE;
destFormat = COLR_BUF_RGB565;
depthFormat = DEPTH_FRMT_16_FIXED;
destPitch = pitch * 2;
break;
case GL_UNSIGNED_INT_8_8_8_8_REV:
if (format != GL_BGRA) return GL_FALSE;
destFormat = COLR_BUF_ARGB8888;
depthFormat = DEPTH_FRMT_24_FIXED_8_OTHER;
destPitch = pitch * 4;
break;
default:
fprintf(stderr, "%s: destFormat failed %s\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(type));
return GL_FALSE;
}
destFormat |= (0x02<<24);
/* fprintf(stderr, "type: %s destFormat: %x\n", */
/* _mesa_lookup_enum_by_nr(type), */
/* destFormat); */
intelFlush( ctx );
SET_STATE( i830, meta );
set_initial_state( i830 );
set_no_depth_stencil_write( i830 );
LOCK_HARDWARE( intel );
{
intelWaitForIdle( intel ); /* required by GL */
if (!driClipRectToFramebuffer(ctx->ReadBuffer, &x, &y, &width, &height)) {
UNLOCK_HARDWARE( intel );
SET_STATE(i830, state);
fprintf(stderr, "%s: cliprect failed\n", __FUNCTION__);
return GL_TRUE;
}
#if 0
/* FIXME -- Just emit the correct state
*/
if (i830SetParam(i830->driFd, I830_SETPARAM_CBUFFER_PITCH,
destPitch) != 0) {
UNLOCK_HARDWARE( intel );
SET_STATE(i830, state);
fprintf(stderr, "%s: setparam failed\n", __FUNCTION__);
return GL_FALSE;
}
#endif
y = dPriv->h - y - height;
x += dPriv->x;
y += dPriv->y;
/* Set the frontbuffer up as a large rectangular texture.
*/
set_tex_rect_source( i830,
src_offset,
screen->width,
screen->height,
screen->front.pitch,
textureFormat );
enable_texture_blend_replace( i830 );
/* Set the 3d engine to draw into the agp memory
*/
set_draw_region( i830, destOffset );
set_draw_format( i830, destFormat, depthFormat );
/* Draw a single quad, no cliprects:
*/
i830->intel.numClipRects = 1;
i830->intel.pClipRects = &tmp;
i830->intel.pClipRects[0].x1 = 0;
i830->intel.pClipRects[0].y1 = 0;
i830->intel.pClipRects[0].x2 = width;
i830->intel.pClipRects[0].y2 = height;
draw_quad( i830,
0, width, 0, height,
0, 255, 0, 0,
x, x+width, y, y+height );
intelWindowMoved( intel );
}
UNLOCK_HARDWARE( intel );
intelFinish( ctx ); /* required by GL */
SET_STATE( i830, state );
return GL_TRUE;
}
