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Diffstat (limited to 'src/gallium/drivers/r300/r300_emit.c')
-rw-r--r--src/gallium/drivers/r300/r300_emit.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
new file mode 100644
index 00000000000..c71b8d0b025
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2008 Corbin Simpson <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE. */
+
+/* r300_emit: Functions for emitting state. */
+
+#include "r300_emit.h"
+
+void r300_emit_blend_state(struct r300_context* r300,
+ struct r300_blend_state* blend)
+{
+ CS_LOCALS(r300);
+ BEGIN_CS(7);
+ OUT_CS_REG_SEQ(R300_RB3D_CBLEND, 2);
+ OUT_CS(blend->blend_control);
+ OUT_CS(blend->alpha_blend_control);
+ OUT_CS_REG(R300_RB3D_ROPCNTL, blend->rop);
+ OUT_CS_REG(R300_RB3D_DITHER_CTL, blend->dither);
+ END_CS;
+}
+
+void r300_emit_blend_color_state(struct r300_context* r300,
+ struct r300_blend_color_state* bc)
+{
+ struct r300_screen* r300screen =
+ (struct r300_screen*)r300->context.screen;
+ CS_LOCALS(r300);
+ if (r300screen->caps->is_r500) {
+ BEGIN_CS(3);
+ OUT_CS_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2);
+ OUT_CS(bc->blend_color_red_alpha);
+ OUT_CS(bc->blend_color_green_blue);
+ END_CS;
+ } else {
+ BEGIN_CS(2);
+ OUT_CS_REG(R300_RB3D_BLEND_COLOR, bc->blend_color);
+ END_CS;
+ }
+}
+
+void r300_emit_dsa_state(struct r300_context* r300,
+ struct r300_dsa_state* dsa)
+{
+ struct r300_screen* r300screen =
+ (struct r300_screen*)r300->context.screen;
+ CS_LOCALS(r300);
+ BEGIN_CS(r300screen->caps->is_r500 ? 8 : 8);
+ OUT_CS_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function);
+ /* XXX figure out the r300 counterpart for this */
+ if (r300screen->caps->is_r500) {
+ /* OUT_CS_REG(R500_FG_ALPHA_VALUE, dsa->alpha_reference); */
+ }
+ OUT_CS_REG_SEQ(R300_ZB_CNTL, 3);
+ OUT_CS(dsa->z_buffer_control);
+ OUT_CS(dsa->z_stencil_control);
+ OUT_CS(dsa->stencil_ref_mask);
+ OUT_CS_REG(R300_ZB_ZTOP, dsa->z_buffer_top);
+ if (r300screen->caps->is_r500) {
+ /* OUT_CS_REG(R500_ZB_STENCILREFMASK_BF, dsa->stencil_ref_bf); */
+ }
+ END_CS;
+}
+
+/* XXX add pitch, stride, z/stencil buf */
+void r300_emit_fb_state(struct r300_context* r300,
+ struct pipe_framebuffer_state* fb)
+{
+ CS_LOCALS(r300);
+ int i;
+
+ BEGIN_CS((3 * fb->nr_cbufs) + 6);
+ for (i = 0; i < fb->nr_cbufs; i++) {
+ OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0 + (4 * i), 1);
+ OUT_CS_RELOC(fb->cbufs[i]->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
+ }
+ R300_PACIFY;
+ END_CS;
+}
+
+void r300_emit_rs_state(struct r300_context* r300, struct r300_rs_state* rs)
+{
+ struct r300_screen* r300screen =
+ (struct r300_screen*)r300->context.screen;
+ CS_LOCALS(r300);
+ BEGIN_CS(14);
+ OUT_CS_REG(R300_VAP_CNTL_STATUS, rs->vap_control_status);
+ OUT_CS_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 6);
+ OUT_CS(rs->depth_scale_front);
+ OUT_CS(rs->depth_offset_front);
+ OUT_CS(rs->depth_scale_back);
+ OUT_CS(rs->depth_offset_back);
+ OUT_CS(rs->polygon_offset_enable);
+ OUT_CS(rs->cull_mode);
+ OUT_CS_REG(R300_GA_LINE_STIPPLE_CONFIG, rs->line_stipple_config);
+ OUT_CS_REG(R300_GA_LINE_STIPPLE_VALUE, rs->line_stipple_value);
+ END_CS;
+}
+
+static void r300_emit_dirty_state(struct r300_context* r300)
+{
+ struct r300_screen* r300screen =
+ (struct r300_screen*)r300->context.screen;
+ CS_LOCALS(r300);
+
+ if (!(r300->dirty_state) && !(r300->dirty_hw)) {
+ return;
+ }
+
+ /* XXX check size */
+
+ if (r300->dirty_state & R300_NEW_BLEND) {
+ r300_emit_blend_state(r300, r300->blend_state);
+ }
+
+ if (r300->dirty_state & R300_NEW_BLEND_COLOR) {
+ r300_emit_blend_color_state(r300, r300->blend_color_state);
+ }
+
+ if (r300->dirty_state & R300_NEW_DSA) {
+ r300_emit_dsa_state(r300, r300->dsa_state);
+ }
+
+ if (r300->dirty_state & R300_NEW_RASTERIZER) {
+ r300_emit_rs_state(r300, r300->rs_state);
+ }
+
+ if (r300->dirty_state & R300_NEW_SCISSOR) {
+ struct r300_scissor_state* scissor = r300->scissor_state;
+ /* XXX next two are contiguous regs */
+ OUT_CS_REG(R300_SC_SCISSORS_TL, scissor->scissor_top_left);
+ OUT_CS_REG(R300_SC_SCISSORS_BR, scissor->scissor_bottom_right);
+ }
+
+ r300->dirty_state = 0;
+}