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/*
Copyright (c) 2003 Andreas Robinson, All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
*/
#include <config.h>
#include <gfx/convert.h>
#include "unichrome.h"
#include "uc_state.h"
#include "uc_accel.h"
#include "uc_hw.h"
enum uc_state_type {
UC_TYPE_UNSUPPORTED,
UC_TYPE_2D,
UC_TYPE_3D
};
/// GPU selecting functions --------------------------------------------------
static inline bool
uc_has_dst_format( DFBSurfacePixelFormat format )
{
switch (format) {
case DSPF_ARGB1555:
case DSPF_RGB16:
case DSPF_RGB32:
case DSPF_ARGB:
return true;
default:
break;
}
return false;
}
static inline bool
uc_has_src_format_3d( DFBSurfacePixelFormat format )
{
switch (format) {
case DSPF_ARGB1555:
case DSPF_RGB16:
case DSPF_RGB32:
case DSPF_ARGB:
case DSPF_A8:
case DSPF_LUT8:
return true;
default:
break;
}
return false;
}
static inline enum uc_state_type
uc_select_drawtype( CardState* state,
DFBAccelerationMask accel )
{
if (!(state->drawingflags & ~UC_DRAWING_FLAGS_2D) &&
!(accel & DFXL_FILLTRIANGLE))
return UC_TYPE_2D;
if (!(state->drawingflags & ~UC_DRAWING_FLAGS_3D))
return UC_TYPE_3D;
return UC_TYPE_UNSUPPORTED;
}
static inline enum uc_state_type
uc_select_blittype( CardState* state,
DFBAccelerationMask accel )
{
if (!(state->blittingflags & ~UC_BLITTING_FLAGS_2D)) {
if ((state->source->config.format == state->destination->config.format) &&
!((state->blittingflags & DSBLIT_SRC_COLORKEY) &&
(state->blittingflags & DSBLIT_DST_COLORKEY)) &&
!(accel & (DFXL_STRETCHBLIT | DFXL_TEXTRIANGLES)))
return UC_TYPE_2D;
}
if (!(state->blittingflags & ~UC_BLITTING_FLAGS_3D)) {
if (uc_has_src_format_3d( state->source->config.format ))
return UC_TYPE_3D;
}
return UC_TYPE_UNSUPPORTED;
}
// DirectFB interfacing functions --------------------------------------------
void uc_check_state(void *drv, void *dev,
CardState *state, DFBAccelerationMask accel)
{
/* Check destination format. */
if (!uc_has_dst_format( state->destination->config.format ))
return;
if (DFB_DRAWING_FUNCTION(accel)) {
/* Check drawing parameters. */
switch (uc_select_drawtype(state, accel)) {
case UC_TYPE_2D:
state->accel |= UC_DRAWING_FUNCTIONS_2D;
break;
case UC_TYPE_3D:
state->accel |= UC_DRAWING_FUNCTIONS_3D;
break;
default:
return;
}
}
else {
/* Check blitting parameters. */
switch (uc_select_blittype(state, accel)) {
case UC_TYPE_2D:
state->accel |= UC_BLITTING_FUNCTIONS_2D;
break;
case UC_TYPE_3D:
state->accel |= UC_BLITTING_FUNCTIONS_3D;
break;
default:
return;
}
}
}
void uc_set_state(void *drv, void *dev, GraphicsDeviceFuncs *funcs,
CardState *state, DFBAccelerationMask accel)
{
UcDriverData *ucdrv = (UcDriverData*) drv;
UcDeviceData *ucdev = (UcDeviceData*) dev;
struct uc_fifo *fifo = ucdrv->fifo;
u32 rop3d = HC_HROP_P;
u32 regEnable = HC_HenCW_MASK | HC_HenAW_MASK;
StateModificationFlags modified = state->mod_hw;
// Check modified states and update hw
if (modified & SMF_SOURCE)
UC_INVALIDATE( uc_source2d );
if (modified & (SMF_BLITTING_FLAGS | SMF_SOURCE))
UC_INVALIDATE( uc_source3d | uc_texenv );
if (modified & (SMF_BLITTING_FLAGS | SMF_SRC_COLORKEY | SMF_DST_COLORKEY))
UC_INVALIDATE( uc_colorkey2d );
if (modified & (SMF_COLOR | SMF_DESTINATION | SMF_DRAWING_FLAGS))
UC_INVALIDATE( uc_color2d );
if (modified & (SMF_SRC_BLEND | SMF_DST_BLEND))
UC_INVALIDATE( uc_blending_fn );
if (modified & SMF_COLOR)
ucdev->color3d = PIXEL_ARGB( state->color.a, state->color.r,
state->color.g, state->color.b );
if (modified & SMF_DRAWING_FLAGS) {
if (state->drawingflags & DSDRAW_XOR) {
ucdev->draw_rop3d = HC_HROP_DPx;
ucdev->draw_rop2d = VIA_ROP_DPx;
}
else {
ucdev->draw_rop3d = HC_HROP_P;
ucdev->draw_rop2d = VIA_ROP_P;
}
}
ucdev->bflags = state->blittingflags;
if (modified & SMF_DESTINATION)
uc_set_destination(ucdrv, ucdev, state);
if (modified & SMF_CLIP)
uc_set_clip(ucdrv, ucdev, state);
// Select GPU and check remaining states
if (DFB_DRAWING_FUNCTION(accel)) {
switch (uc_select_drawtype(state, accel)) {
case UC_TYPE_2D:
funcs->FillRectangle = uc_fill_rectangle;
funcs->DrawRectangle = uc_draw_rectangle;
funcs->DrawLine = uc_draw_line;
uc_set_color_2d(ucdrv, ucdev, state);
state->set = UC_DRAWING_FUNCTIONS_2D;
break;
case UC_TYPE_3D:
funcs->FillRectangle = uc_fill_rectangle_3d;
funcs->DrawRectangle = uc_draw_rectangle_3d;
funcs->DrawLine = uc_draw_line_3d;
if (state->drawingflags & DSDRAW_BLEND) {
uc_set_blending_fn(ucdrv, ucdev, state);
regEnable |= HC_HenABL_MASK;
}
rop3d = ucdev->draw_rop3d;
state->set = UC_DRAWING_FUNCTIONS_3D;
break;
case UC_TYPE_UNSUPPORTED:
D_BUG("Unsupported drawing function!");
break;
}
}
else { // DFB_BLITTING_FUNCTION(accel)
switch (uc_select_blittype(state, accel)) {
case UC_TYPE_2D:
uc_set_source_2d(ucdrv, ucdev, state);
funcs->Blit = uc_blit;
uc_set_colorkey_2d(ucdrv, ucdev, state);
state->set = UC_BLITTING_FUNCTIONS_2D;
break;
case UC_TYPE_3D:
funcs->Blit = uc_blit_3d;
uc_set_source_3d(ucdrv, ucdev, state);
uc_set_texenv(ucdrv, ucdev, state);
uc_set_blending_fn(ucdrv, ucdev, state);
regEnable |= HC_HenTXMP_MASK | HC_HenTXCH_MASK | HC_HenTXPP_MASK | HC_HenDT_MASK;
if (state->blittingflags & (DSBLIT_BLEND_ALPHACHANNEL |
DSBLIT_BLEND_COLORALPHA))
regEnable |= HC_HenABL_MASK;
state->set = UC_BLITTING_FUNCTIONS_3D;
break;
case UC_TYPE_UNSUPPORTED:
D_BUG("Unsupported drawing function!");
break;
}
}
#ifdef UC_ENABLE_3D
UC_FIFO_PREPARE( fifo, 6 );
UC_FIFO_ADD_HDR( fifo, HC_ParaType_NotTex << 16 );
/* Don't know what this does. DRI code always clears it. */
UC_FIFO_ADD_3D ( fifo, HC_SubA_HPixGC, 0 );
UC_FIFO_ADD_3D ( fifo, HC_SubA_HEnable, regEnable );
UC_FIFO_ADD_3D ( fifo, HC_SubA_HFBBMSKL, 0xffffff );
UC_FIFO_ADD_3D ( fifo, HC_SubA_HROP, rop3d | 0xff );
#endif
UC_FIFO_CHECK(fifo);
state->mod_hw = 0;
}
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