/* Compare old and new render states and emit differences between them
* to hardware. Simplest implementation would be to emit the whole of
* the "to" state.
*/
static enum pipe_error
emit_rss(struct svga_context *svga, unsigned dirty)
{
struct svga_screen *screen = svga_screen(svga->pipe.screen);
struct rs_queue queue;
float point_size_min;
queue.rs_count = 0;
if (dirty & SVGA_NEW_BLEND) {
const struct svga_blend_state *curr = svga->curr.blend;
EMIT_RS( svga, curr->rt[0].writemask, COLORWRITEENABLE, fail );
EMIT_RS( svga, curr->rt[0].blend_enable, BLENDENABLE, fail );
if (curr->rt[0].blend_enable) {
EMIT_RS( svga, curr->rt[0].srcblend, SRCBLEND, fail );
EMIT_RS( svga, curr->rt[0].dstblend, DSTBLEND, fail );
EMIT_RS( svga, curr->rt[0].blendeq, BLENDEQUATION, fail );
EMIT_RS( svga, curr->rt[0].separate_alpha_blend_enable,
SEPARATEALPHABLENDENABLE, fail );
if (curr->rt[0].separate_alpha_blend_enable) {
EMIT_RS( svga, curr->rt[0].srcblend_alpha, SRCBLENDALPHA, fail );
EMIT_RS( svga, curr->rt[0].dstblend_alpha, DSTBLENDALPHA, fail );
EMIT_RS( svga, curr->rt[0].blendeq_alpha, BLENDEQUATIONALPHA, fail );
}
}
}
if (dirty & SVGA_NEW_BLEND_COLOR) {
uint32 color;
uint32 r = float_to_ubyte(svga->curr.blend_color.color[0]);
uint32 g = float_to_ubyte(svga->curr.blend_color.color[1]);
uint32 b = float_to_ubyte(svga->curr.blend_color.color[2]);
uint32 a = float_to_ubyte(svga->curr.blend_color.color[3]);
color = (a << 24) | (r << 16) | (g << 8) | b;
EMIT_RS( svga, color, BLENDCOLOR, fail );
}
if (dirty & (SVGA_NEW_DEPTH_STENCIL | SVGA_NEW_RAST)) {
const struct svga_depth_stencil_state *curr = svga->curr.depth;
const struct svga_rasterizer_state *rast = svga->curr.rast;
if (!curr->stencil[0].enabled)
{
/* Stencil disabled
*/
EMIT_RS( svga, FALSE, STENCILENABLE, fail );
EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail );
}
else if (curr->stencil[0].enabled && !curr->stencil[1].enabled)
{
/* Regular stencil
*/
EMIT_RS( svga, TRUE, STENCILENABLE, fail );
EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail );
EMIT_RS( svga, curr->stencil[0].func, STENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[0].fail, STENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[0].zfail, STENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[0].pass, STENCILPASS, fail );
EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail );
EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail );
}
else
{
int cw, ccw;
/* Hardware frontwinding is always CW, so if ours is also CW,
* then our definition of front face agrees with hardware.
* Otherwise need to flip.
*/
if (rast->templ.front_ccw) {
ccw = 0;
cw = 1;
}
else {
ccw = 1;
cw = 0;
}
/* Twoside stencil
*/
EMIT_RS( svga, TRUE, STENCILENABLE, fail );
EMIT_RS( svga, TRUE, STENCILENABLE2SIDED, fail );
EMIT_RS( svga, curr->stencil[cw].func, STENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[cw].fail, STENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[cw].zfail, STENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[cw].pass, STENCILPASS, fail );
EMIT_RS( svga, curr->stencil[ccw].func, CCWSTENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[ccw].fail, CCWSTENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[ccw].zfail, CCWSTENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[ccw].pass, CCWSTENCILPASS, fail );
EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail );
EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail );
}
EMIT_RS( svga, curr->zenable, ZENABLE, fail );
if (curr->zenable) {
EMIT_RS( svga, curr->zfunc, ZFUNC, fail );
EMIT_RS( svga, curr->zwriteenable, ZWRITEENABLE, fail );
}
EMIT_RS( svga, curr->alphatestenable, ALPHATESTENABLE, fail );
if (curr->alphatestenable) {
EMIT_RS( svga, curr->alphafunc, ALPHAFUNC, fail );
EMIT_RS_FLOAT( svga, curr->alpharef, ALPHAREF, fail );
}
}
if (dirty & SVGA_NEW_STENCIL_REF) {
EMIT_RS( svga, svga->curr.stencil_ref.ref_value[0], STENCILREF, fail );
}
if (dirty & (SVGA_NEW_RAST | SVGA_NEW_NEED_PIPELINE))
{
const struct svga_rasterizer_state *curr = svga->curr.rast;
unsigned cullmode = curr->cullmode;
/* Shademode: still need to rearrange index list to move
* flat-shading PV first vertex.
*/
EMIT_RS( svga, curr->shademode, SHADEMODE, fail );
/* Don't do culling while the software pipeline is active. It
* does it for us, and additionally introduces potentially
* back-facing triangles.
*/
if (svga->state.sw.need_pipeline)
cullmode = SVGA3D_FACE_NONE;
point_size_min = util_get_min_point_size(&curr->templ);
EMIT_RS( svga, cullmode, CULLMODE, fail );
EMIT_RS( svga, curr->scissortestenable, SCISSORTESTENABLE, fail );
EMIT_RS( svga, curr->multisampleantialias, MULTISAMPLEANTIALIAS, fail );
EMIT_RS( svga, curr->lastpixel, LASTPIXEL, fail );
EMIT_RS( svga, curr->linepattern, LINEPATTERN, fail );
EMIT_RS_FLOAT( svga, curr->pointsize, POINTSIZE, fail );
EMIT_RS_FLOAT( svga, point_size_min, POINTSIZEMIN, fail );
EMIT_RS_FLOAT( svga, screen->maxPointSize, POINTSIZEMAX, fail );
EMIT_RS( svga, curr->pointsprite, POINTSPRITEENABLE, fail);
}
if (dirty & (SVGA_NEW_RAST | SVGA_NEW_FRAME_BUFFER | SVGA_NEW_NEED_PIPELINE))
{
const struct svga_rasterizer_state *curr = svga->curr.rast;
float slope = 0.0;
float bias = 0.0;
/* Need to modify depth bias according to bound depthbuffer
* format. Don't do hardware depthbias while the software
* pipeline is active.
*/
if (!svga->state.sw.need_pipeline &&
svga->curr.framebuffer.zsbuf)
{
slope = curr->slopescaledepthbias;
bias = svga->curr.depthscale * curr->depthbias;
}
EMIT_RS_FLOAT( svga, slope, SLOPESCALEDEPTHBIAS, fail );
EMIT_RS_FLOAT( svga, bias, DEPTHBIAS, fail );
}
if (dirty & SVGA_NEW_FRAME_BUFFER) {
/* XXX: we only look at the first color buffer's sRGB state */
float gamma = 1.0f;
if (svga->curr.framebuffer.cbufs[0] &&
util_format_is_srgb(svga->curr.framebuffer.cbufs[0]->format)) {
gamma = 2.2f;
}
EMIT_RS_FLOAT(svga, gamma, OUTPUTGAMMA, fail);
}
if (dirty & SVGA_NEW_RAST) {
/* bitmask of the enabled clip planes */
unsigned enabled = svga->curr.rast->templ.clip_plane_enable;
EMIT_RS( svga, enabled, CLIPPLANEENABLE, fail );
}
if (queue.rs_count) {
SVGA3dRenderState *rs;
if (SVGA3D_BeginSetRenderState( svga->swc,
&rs,
queue.rs_count ) != PIPE_OK)
goto fail;
memcpy( rs,
queue.rs,
queue.rs_count * sizeof queue.rs[0]);
SVGA_FIFOCommitAll( svga->swc );
}
return PIPE_OK;
fail:
/* XXX: need to poison cached hardware state on failure to ensure
* dirty state gets re-emitted. Fix this by re-instating partial
* FIFOCommit command and only updating cached hw state once the
* initial allocation has succeeded.
*/
memset(svga->state.hw_draw.rs, 0xcd, sizeof(svga->state.hw_draw.rs));
return PIPE_ERROR_OUT_OF_MEMORY;
}
/* Compare old and new render states and emit differences between them
* to hardware. Simplest implementation would be to emit the whole of
* the "to" state.
*/
static int emit_rss( struct svga_context *svga,
unsigned dirty )
{
struct rs_queue queue;
queue.rs_count = 0;
if (dirty & SVGA_NEW_BLEND) {
const struct svga_blend_state *curr = svga->curr.blend;
EMIT_RS( svga, curr->rt[0].writemask, COLORWRITEENABLE, fail );
EMIT_RS( svga, curr->rt[0].blend_enable, BLENDENABLE, fail );
if (curr->rt[0].blend_enable) {
EMIT_RS( svga, curr->rt[0].srcblend, SRCBLEND, fail );
EMIT_RS( svga, curr->rt[0].dstblend, DSTBLEND, fail );
EMIT_RS( svga, curr->rt[0].blendeq, BLENDEQUATION, fail );
EMIT_RS( svga, curr->rt[0].separate_alpha_blend_enable,
SEPARATEALPHABLENDENABLE, fail );
if (curr->rt[0].separate_alpha_blend_enable) {
EMIT_RS( svga, curr->rt[0].srcblend_alpha, SRCBLENDALPHA, fail );
EMIT_RS( svga, curr->rt[0].dstblend_alpha, DSTBLENDALPHA, fail );
EMIT_RS( svga, curr->rt[0].blendeq_alpha, BLENDEQUATIONALPHA, fail );
}
}
}
if (dirty & (SVGA_NEW_DEPTH_STENCIL | SVGA_NEW_RAST)) {
const struct svga_depth_stencil_state *curr = svga->curr.depth;
const struct svga_rasterizer_state *rast = svga->curr.rast;
if (!curr->stencil[0].enabled)
{
/* Stencil disabled
*/
EMIT_RS( svga, FALSE, STENCILENABLE, fail );
EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail );
}
else if (curr->stencil[0].enabled && !curr->stencil[1].enabled)
{
/* Regular stencil
*/
EMIT_RS( svga, TRUE, STENCILENABLE, fail );
EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail );
EMIT_RS( svga, curr->stencil[0].func, STENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[0].fail, STENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[0].zfail, STENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[0].pass, STENCILPASS, fail );
EMIT_RS( svga, curr->stencil_ref, STENCILREF, fail );
EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail );
EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail );
}
else
{
int cw, ccw;
/* Hardware frontwinding is always CW, so if ours is also CW,
* then our definition of front face agrees with hardware.
* Otherwise need to flip.
*/
if (rast->templ.front_winding == PIPE_WINDING_CW) {
cw = 0;
ccw = 1;
}
else {
cw = 1;
ccw = 0;
}
/* Twoside stencil
*/
EMIT_RS( svga, TRUE, STENCILENABLE, fail );
EMIT_RS( svga, TRUE, STENCILENABLE2SIDED, fail );
EMIT_RS( svga, curr->stencil[cw].func, STENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[cw].fail, STENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[cw].zfail, STENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[cw].pass, STENCILPASS, fail );
EMIT_RS( svga, curr->stencil[ccw].func, CCWSTENCILFUNC, fail );
EMIT_RS( svga, curr->stencil[ccw].fail, CCWSTENCILFAIL, fail );
EMIT_RS( svga, curr->stencil[ccw].zfail, CCWSTENCILZFAIL, fail );
EMIT_RS( svga, curr->stencil[ccw].pass, CCWSTENCILPASS, fail );
EMIT_RS( svga, curr->stencil_ref, STENCILREF, fail );
EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail );
EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail );
}
EMIT_RS( svga, curr->zenable, ZENABLE, fail );
if (curr->zenable) {
EMIT_RS( svga, curr->zfunc, ZFUNC, fail );
EMIT_RS( svga, curr->zwriteenable, ZWRITEENABLE, fail );
}
EMIT_RS( svga, curr->alphatestenable, ALPHATESTENABLE, fail );
if (curr->alphatestenable) {
EMIT_RS( svga, curr->alphafunc, ALPHAFUNC, fail );
EMIT_RS_FLOAT( svga, curr->alpharef, ALPHAREF, fail );
}
}
if (dirty & SVGA_NEW_RAST)
{
const struct svga_rasterizer_state *curr = svga->curr.rast;
/* Shademode: still need to rearrange index list to move
* flat-shading PV first vertex.
*/
EMIT_RS( svga, curr->shademode, SHADEMODE, fail );
EMIT_RS( svga, curr->cullmode, CULLMODE, fail );
EMIT_RS( svga, curr->scissortestenable, SCISSORTESTENABLE, fail );
EMIT_RS( svga, curr->multisampleantialias, MULTISAMPLEANTIALIAS, fail );
EMIT_RS( svga, curr->lastpixel, LASTPIXEL, fail );
EMIT_RS( svga, curr->linepattern, LINEPATTERN, fail );
EMIT_RS_FLOAT( svga, curr->pointsize, POINTSIZE, fail );
EMIT_RS_FLOAT( svga, curr->pointsize_min, POINTSIZEMIN, fail );
EMIT_RS_FLOAT( svga, curr->pointsize_max, POINTSIZEMAX, fail );
}
if (dirty & (SVGA_NEW_RAST | SVGA_NEW_FRAME_BUFFER | SVGA_NEW_NEED_PIPELINE))
{
const struct svga_rasterizer_state *curr = svga->curr.rast;
float slope = 0.0;
float bias = 0.0;
/* Need to modify depth bias according to bound depthbuffer
* format. Don't do hardware depthbias while the software
* pipeline is active.
*/
if (!svga->state.sw.need_pipeline &&
svga->curr.framebuffer.zsbuf)
{
slope = curr->slopescaledepthbias;
bias = svga->curr.depthscale * curr->depthbias;
}
EMIT_RS_FLOAT( svga, slope, SLOPESCALEDEPTHBIAS, fail );
EMIT_RS_FLOAT( svga, bias, DEPTHBIAS, fail );
}
if (queue.rs_count) {
SVGA3dRenderState *rs;
if (SVGA3D_BeginSetRenderState( svga->swc,
&rs,
queue.rs_count ) != PIPE_OK)
goto fail;
memcpy( rs,
queue.rs,
queue.rs_count * sizeof queue.rs[0]);
SVGA_FIFOCommitAll( svga->swc );
}
/* Also blend color:
*/
return 0;
fail:
/* XXX: need to poison cached hardware state on failure to ensure
* dirty state gets re-emitted. Fix this by re-instating partial
* FIFOCommit command and only updating cached hw state once the
* initial allocation has succeeded.
*/
memset(svga->state.hw_draw.rs, 0xcd, sizeof(svga->state.hw_draw.rs));
return PIPE_ERROR_OUT_OF_MEMORY;
}