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
mgaTryDrawPixels( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
GLint size, skipPixels, skipRows;
GLint pitch = unpack->RowLength ? unpack->RowLength : width;
GLuint dest, planemask;
GLuint cpp = mmesa->mgaScreen->cpp;
if (!clip_pixelrect(ctx, ctx->DrawBuffer,
&x, &y, &width, &height,
&skipPixels, &skipRows, &size)) {
return GL_TRUE;
}
switch (format) {
#if defined(MESA_packed_depth_stencil)
case GL_DEPTH_STENCIL_MESA:
dest = mmesa->mgaScreen->depthOffset;
planemask = ~0;
if (!check_depth_stencil_24_8(ctx, type, unpack, pixels, size, pitch) ||
!check_depth_per_fragment_ops(ctx) ||
!check_stencil_per_fragment_ops(ctx))
return GL_FALSE;
break;
#endif
case GL_DEPTH_COMPONENT:
dest = mmesa->mgaScreen->depthOffset;
if (ctx->Visual.depthBits == 24)
planemask = ~0xff;
else
planemask = ~0;
if (!check_depth(ctx, type, unpack, pixels, size, pitch) ||
!check_depth_per_fragment_ops(ctx))
return GL_FALSE;
break;
case GL_RGB:
case GL_BGRA:
dest = (mmesa->draw_buffer == MGA_FRONT ?
mmesa->mgaScreen->frontOffset :
mmesa->mgaScreen->backOffset);
planemask = mgaPackColor(cpp,
ctx->Color.ColorMask[RCOMP],
ctx->Color.ColorMask[GCOMP],
ctx->Color.ColorMask[BCOMP],
ctx->Color.ColorMask[ACOMP]);
if (cpp == 2)
planemask |= planemask << 16;
if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) {
return GL_FALSE;
}
if (!check_color_per_fragment_ops(ctx)) {
return GL_FALSE;
}
break;
default:
return GL_FALSE;
}
LOCK_HARDWARE_QUIESCENT( mmesa );
if (mmesa->dirty_cliprects & MGA_FRONT)
mgaUpdateRects( mmesa, MGA_FRONT );
if ( IS_AGP_MEM(mmesa, (char *)pixels) &&
IS_AGP_MEM(mmesa, (char *)pixels + size) )
{
do_draw_pix( ctx, x, y, width, height, pitch, pixels,
dest, planemask );
UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
}
else
{
/* Pixels is in regular memory -- get dma buffers and perform
* upload through them.
*/
/* drmBufPtr buf = mgaGetBufferLocked(mmesa); */
GLuint bufferpitch = (width*cpp+31)&~31;
char *address = 0; /* mmesa->mgaScreen->agp.map; */
do {
/* GLuint rows = MIN2( height, MGA_DMA_BUF_SZ / bufferpitch ); */
GLuint rows = height;
if (0) fprintf(stderr, "trying to upload %d rows (pitch %d)\n",
rows, bufferpitch);
/* The texture conversion code is so slow that there is only
* negligble speedup when the buffers/images don't exactly
* match:
*/
#if 0
if (cpp == 2) {
if (!_mesa_convert_texsubimage2d( MESA_FORMAT_RGB565,
0, 0, width, rows,
bufferpitch, format, type,
unpack, pixels, address )) {
/* mgaReleaseBufLocked( mmesa, buf ); */
UNLOCK_HARDWARE(mmesa);
return GL_FALSE;
}
} else {
if (!_mesa_convert_texsubimage2d( MESA_FORMAT_ARGB8888,
0, 0, width, rows,
bufferpitch, format, type,
unpack, pixels, address )) {
/* mgaReleaseBufLocked( mmesa, buf ); */
UNLOCK_HARDWARE(mmesa);
return GL_FALSE;
}
}
#else
MEMCPY( address, pixels, rows*bufferpitch );
#endif
do_draw_pix( ctx, x, y, width, rows,
bufferpitch/cpp, address, dest, planemask );
/* Fix me -- use multiple buffers to avoid flush.
*/
UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
pixels = (void *)((char *) pixels + rows * pitch);
height -= rows;
y += rows;
} while (height);
/* mgaReleaseBufLocked( mmesa, buf ); */
}
UNLOCK_HARDWARE( mmesa );
mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
return GL_TRUE;
}