r300_emit.c

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

	if (InputsRead & (1 << VERT_ATTRIB_NORMAL))
		vic_1 |= R300_INPUT_CNTL_NORMAL;

	if (InputsRead & (1 << VERT_ATTRIB_COLOR0))
		vic_1 |= R300_INPUT_CNTL_COLOR;

	rmesa->state.texture.tc_count = 0;
	for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
		if (InputsRead & (1 << (VERT_ATTRIB_TEX0 + i))) {
			rmesa->state.texture.tc_count++;
			vic_1 |= R300_INPUT_CNTL_TC0 << i;
		}

	return vic_1;
}

GLuint r300VAPOutputCntl0(GLcontext * ctx, GLuint OutputsWritten)
{
	GLuint ret = 0;

	if (OutputsWritten & (1 << VERT_RESULT_HPOS))
		ret |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;

	if (OutputsWritten & (1 << VERT_RESULT_COL0))
		ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT;

	if (OutputsWritten & (1 << VERT_RESULT_COL1))
		ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT;

	if (OutputsWritten & (1 << VERT_RESULT_BFC0)
	    || OutputsWritten & (1 << VERT_RESULT_BFC1))
		ret |=
		    R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT |
		    R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT |
		    R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT;

#if 0
	if (OutputsWritten & (1 << VERT_RESULT_FOGC)) ;
#endif

	if (OutputsWritten & (1 << VERT_RESULT_PSIZ))
		ret |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;

	return ret;
}

GLuint r300VAPOutputCntl1(GLcontext * ctx, GLuint OutputsWritten)
{
	GLuint i, ret = 0;

	for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
		if (OutputsWritten & (1 << (VERT_RESULT_TEX0 + i))) {
			ret |= (4 << (3 * i));
		}
	}

	return ret;
}

/* Emit vertex data to GART memory
 * Route inputs to the vertex processor
 * This function should never return R300_FALLBACK_TCL when using software tcl.
 */
int r300EmitArrays(GLcontext * ctx)
{
	r300ContextPtr rmesa = R300_CONTEXT(ctx);
	TNLcontext *tnl = TNL_CONTEXT(ctx);
	struct vertex_buffer *vb = &tnl->vb;
	GLuint nr;
	GLuint count = vb->Count;
	GLuint i;
	GLuint InputsRead = 0, OutputsWritten = 0;
	int *inputs = NULL;
	int vir_inputs[VERT_ATTRIB_MAX];
	GLint tab[VERT_ATTRIB_MAX];
	int swizzle[VERT_ATTRIB_MAX][4];
	struct r300_vertex_program *prog =
	    (struct r300_vertex_program *)CURRENT_VERTEX_SHADER(ctx);

	if (hw_tcl_on) {
		inputs = prog->inputs;
		InputsRead = prog->key.InputsRead;
		OutputsWritten = prog->key.OutputsWritten;
	} else {
		inputs = rmesa->state.sw_tcl_inputs;

		DECLARE_RENDERINPUTS(render_inputs_bitset);
		RENDERINPUTS_COPY(render_inputs_bitset, tnl->render_inputs_bitset);

		vb->AttribPtr[VERT_ATTRIB_POS] = vb->ClipPtr;

		assert(RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_POS));
		assert(RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_NORMAL) == 0);
		//assert(RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_COLOR0));

		if (RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_POS)) {
			InputsRead |= 1 << VERT_ATTRIB_POS;
			OutputsWritten |= 1 << VERT_RESULT_HPOS;
		}

		if (RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_COLOR0)) {
			InputsRead |= 1 << VERT_ATTRIB_COLOR0;
			OutputsWritten |= 1 << VERT_RESULT_COL0;
		}

		if (RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_COLOR1)) {
			InputsRead |= 1 << VERT_ATTRIB_COLOR1;
			OutputsWritten |= 1 << VERT_RESULT_COL1;
		}

		for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
			if (RENDERINPUTS_TEST(render_inputs_bitset, _TNL_ATTRIB_TEX(i))) {
				InputsRead |= 1 << (VERT_ATTRIB_TEX0 + i);
				OutputsWritten |= 1 << (VERT_RESULT_TEX0 + i);
			}
		}

		for (i = 0, nr = 0; i < VERT_ATTRIB_MAX; i++) {
			if (InputsRead & (1 << i)) {
				inputs[i] = nr++;
			} else {
				inputs[i] = -1;
			}
		}

		/* Fixed, apply to vir0 only */
		memcpy(vir_inputs, inputs, VERT_ATTRIB_MAX * sizeof(int));
		inputs = vir_inputs;
		if (InputsRead & VERT_ATTRIB_POS)
			inputs[VERT_ATTRIB_POS] = 0;
		if (InputsRead & (1 << VERT_ATTRIB_COLOR0))
			inputs[VERT_ATTRIB_COLOR0] = 2;
		if (InputsRead & (1 << VERT_ATTRIB_COLOR1))
			inputs[VERT_ATTRIB_COLOR1] = 3;
		for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++)
			if (InputsRead & (1 << i))
				inputs[i] = 6 + (i - VERT_ATTRIB_TEX0);

		RENDERINPUTS_COPY(rmesa->state.render_inputs_bitset, render_inputs_bitset);
	}

	assert(InputsRead);
	assert(OutputsWritten);

	for (i = 0, nr = 0; i < VERT_ATTRIB_MAX; i++) {
		if (InputsRead & (1 << i)) {
			tab[nr++] = i;
		}
	}

	if (nr > R300_MAX_AOS_ARRAYS) {
		return R300_FALLBACK_TCL;
	}

	for (i = 0; i < nr; i++) {
		int ci, fix, found = 0;

		swizzle[i][0] = SWIZZLE_ZERO;
		swizzle[i][1] = SWIZZLE_ZERO;
		swizzle[i][2] = SWIZZLE_ZERO;
		swizzle[i][3] = SWIZZLE_ONE;

		for (ci = 0; ci < vb->AttribPtr[tab[i]]->size; ci++) {
			swizzle[i][ci] = ci;
		}

		if (r300IsGartMemory(rmesa, vb->AttribPtr[tab[i]]->data, 4)) {
			if (vb->AttribPtr[tab[i]]->stride % 4) {
				return R300_FALLBACK_TCL;
			}
			rmesa->state.aos[i].address = (void *)(vb->AttribPtr[tab[i]]->data);
			rmesa->state.aos[i].start = 0;
			rmesa->state.aos[i].aos_offset = r300GartOffsetFromVirtual(rmesa, vb->AttribPtr[tab[i]]->data);
			rmesa->state.aos[i].aos_stride = vb->AttribPtr[tab[i]]->stride / 4;
			rmesa->state.aos[i].aos_size = vb->AttribPtr[tab[i]]->size;
		} else {
			r300EmitVec(ctx, &rmesa->state.aos[i],
				    vb->AttribPtr[tab[i]]->data,
				    vb->AttribPtr[tab[i]]->size,
				    vb->AttribPtr[tab[i]]->stride, count);
		}

		rmesa->state.aos[i].aos_size = vb->AttribPtr[tab[i]]->size;

		for (fix = 0; fix <= 4 - vb->AttribPtr[tab[i]]->size; fix++) {
			if ((rmesa->state.aos[i].aos_offset - _mesa_sizeof_type(GL_FLOAT) * fix) % 4) {
				continue;
			}
			found = 1;
			break;
		}

		if (found) {
			if (fix > 0) {
				WARN_ONCE("Feeling lucky?\n");
			}
			rmesa->state.aos[i].aos_offset -= _mesa_sizeof_type(GL_FLOAT) * fix;
			for (ci = 0; ci < vb->AttribPtr[tab[i]]->size; ci++) {
				swizzle[i][ci] += fix;
			}
		} else {
			WARN_ONCE
			    ("Cannot handle offset %x with stride %d, comp %d\n",
			     rmesa->state.aos[i].aos_offset,
			     rmesa->state.aos[i].aos_stride,
			     vb->AttribPtr[tab[i]]->size);
			return R300_FALLBACK_TCL;
		}
	}

	/* Setup INPUT_ROUTE. */
	R300_STATECHANGE(rmesa, vir[0]);
	((drm_r300_cmd_header_t *) rmesa->hw.vir[0].cmd)->packet0.count =
	    r300VAPInputRoute0(&rmesa->hw.vir[0].cmd[R300_VIR_CNTL_0],
			       vb->AttribPtr, inputs, tab, nr);
	R300_STATECHANGE(rmesa, vir[1]);
	((drm_r300_cmd_header_t *) rmesa->hw.vir[1].cmd)->packet0.count =
	    r300VAPInputRoute1(&rmesa->hw.vir[1].cmd[R300_VIR_CNTL_0], swizzle,
			       nr);

	/* Setup INPUT_CNTL. */
	R300_STATECHANGE(rmesa, vic);
	rmesa->hw.vic.cmd[R300_VIC_CNTL_0] = r300VAPInputCntl0(ctx, InputsRead);
	rmesa->hw.vic.cmd[R300_VIC_CNTL_1] = r300VAPInputCntl1(ctx, InputsRead);

	/* Setup OUTPUT_VTX_FMT. */
	R300_STATECHANGE(rmesa, vof);
	rmesa->hw.vof.cmd[R300_VOF_CNTL_0] =
	    r300VAPOutputCntl0(ctx, OutputsWritten);
	rmesa->hw.vof.cmd[R300_VOF_CNTL_1] =
	    r300VAPOutputCntl1(ctx, OutputsWritten);

	rmesa->state.aos_count = nr;

	return R300_FALLBACK_NONE;
}

#ifdef USER_BUFFERS
void r300UseArrays(GLcontext * ctx)
{
	r300ContextPtr rmesa = R300_CONTEXT(ctx);
	int i;

	if (rmesa->state.elt_dma.buf)
		r300_mem_use(rmesa, rmesa->state.elt_dma.buf->id);

	for (i = 0; i < rmesa->state.aos_count; i++) {
		if (rmesa->state.aos[i].buf)
			r300_mem_use(rmesa, rmesa->state.aos[i].buf->id);
	}
}
#endif

void r300ReleaseArrays(GLcontext * ctx)
{
	r300ContextPtr rmesa = R300_CONTEXT(ctx);
	int i;

	r300ReleaseDmaRegion(rmesa, &rmesa->state.elt_dma, __FUNCTION__);
	for (i = 0; i < rmesa->state.aos_count; i++) {
		r300ReleaseDmaRegion(rmesa, &rmesa->state.aos[i], __FUNCTION__);
	}
}

void r300EmitCacheFlush(r300ContextPtr rmesa)
{
	int cmd_reserved = 0;
	int cmd_written = 0;

	drm_radeon_cmd_header_t *cmd = NULL;

	reg_start(R300_RB3D_DSTCACHE_CTLSTAT, 0);
	e32(R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
	    R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);

	reg_start(R300_ZB_ZCACHE_CTLSTAT, 0);
	e32(R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
	    R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
}