r300g: set the correct HiZ clear value
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4609be4410
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@ -141,6 +141,13 @@ static uint32_t r300_depth_clear_value(enum pipe_format format,
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}
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}
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static uint32_t r300_hiz_clear_value(double depth)
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{
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uint32_t r = (uint32_t)(CLAMP(depth, 0, 1) * 255.5);
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assert(r <= 255);
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return r | (r << 8) | (r << 16) | (r << 24);
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}
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/* Clear currently bound buffers. */
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static void r300_clear(struct pipe_context* pipe,
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unsigned buffers,
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@ -214,6 +221,7 @@ static void r300_clear(struct pipe_context* pipe,
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}
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if (r300_hiz_clear_allowed(r300)) {
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r300->hiz_clear_value = r300_hiz_clear_value(depth);
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r300_mark_atom_dirty(r300, &r300->hiz_clear);
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}
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}
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@ -575,6 +575,8 @@ struct r300_context {
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boolean hiz_in_use;
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/* HiZ function. Can be either MIN or MAX. */
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enum r300_hiz_func hiz_func;
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/* HiZ clear value. */
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uint32_t hiz_clear_value;
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void *dsa_decompress_zmask;
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@ -1037,7 +1037,7 @@ void r300_emit_hiz_clear(struct r300_context *r300, unsigned size, void *state)
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OUT_CS_PKT3(R300_PACKET3_3D_CLEAR_HIZ, 2);
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OUT_CS(0);
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OUT_CS(tex->tex.hiz_dwords[fb->zsbuf->u.tex.level]);
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OUT_CS(0xffffffff);
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OUT_CS(r300->hiz_clear_value);
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END_CS;
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/* Mark the current zbuffer's hiz ram as in use. */
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@ -187,8 +187,7 @@ static void r300_update_hyperz(struct r300_context* r300)
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r300_get_sc_hz_max(r300);
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if (r300->screen->caps.is_r500) {
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z->zb_bw_cntl |= R500_HIZ_FP_EXP_BITS_3 |
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R500_HIZ_EQUAL_REJECT_ENABLE;
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z->zb_bw_cntl |= R500_HIZ_EQUAL_REJECT_ENABLE;
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}
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}
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}
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