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173 lines
6.3 KiB
173 lines
6.3 KiB
/* libs/pixelflinger/picker.cpp |
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** |
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** Copyright 2006, The Android Open Source Project |
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** |
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** Licensed under the Apache License, Version 2.0 (the "License"); |
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** you may not use this file except in compliance with the License. |
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** You may obtain a copy of the License at |
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** |
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** http://www.apache.org/licenses/LICENSE-2.0 |
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** |
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** Unless required by applicable law or agreed to in writing, software |
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** distributed under the License is distributed on an "AS IS" BASIS, |
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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** See the License for the specific language governing permissions and |
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** limitations under the License. |
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*/ |
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#include <stdio.h> |
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#include "buffer.h" |
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#include "scanline.h" |
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#include "picker.h" |
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namespace android { |
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// ---------------------------------------------------------------------------- |
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void ggl_init_picker(context_t* /*c*/) |
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{ |
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} |
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void ggl_pick(context_t* c) |
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{ |
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if (ggl_likely(!c->dirty)) |
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return; |
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// compute needs, see if they changed... |
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const uint32_t enables = c->state.enables; |
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needs_t new_needs(c->state.needs); |
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if (c->dirty & GGL_CB_STATE) { |
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new_needs.n &= ~GGL_NEEDS_CB_FORMAT_MASK; |
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new_needs.n |= GGL_BUILD_NEEDS(c->state.buffers.color.format, CB_FORMAT); |
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if (enables & GGL_ENABLE_BLENDING) |
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c->dirty |= GGL_PIXEL_PIPELINE_STATE; |
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} |
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if (c->dirty & GGL_PIXEL_PIPELINE_STATE) { |
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uint32_t n = GGL_BUILD_NEEDS(c->state.buffers.color.format, CB_FORMAT); |
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uint32_t p = 0; |
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if (enables & GGL_ENABLE_BLENDING) { |
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uint32_t src = c->state.blend.src; |
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uint32_t dst = c->state.blend.dst; |
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uint32_t src_alpha = c->state.blend.src_alpha; |
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uint32_t dst_alpha = c->state.blend.dst_alpha; |
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const GGLFormat& cbf = c->formats[ c->state.buffers.color.format ]; |
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if (!cbf.c[GGLFormat::ALPHA].h) { |
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if ((src == GGL_ONE_MINUS_DST_ALPHA) || |
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(src == GGL_DST_ALPHA)) { |
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src = GGL_ONE; |
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} |
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if ((src_alpha == GGL_ONE_MINUS_DST_ALPHA) || |
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(src_alpha == GGL_DST_ALPHA)) { |
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src_alpha = GGL_ONE; |
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} |
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if ((dst == GGL_ONE_MINUS_DST_ALPHA) || |
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(dst == GGL_DST_ALPHA)) { |
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dst = GGL_ONE; |
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} |
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if ((dst_alpha == GGL_ONE_MINUS_DST_ALPHA) || |
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(dst_alpha == GGL_DST_ALPHA)) { |
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dst_alpha = GGL_ONE; |
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} |
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} |
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src = ggl_blendfactor_to_needs(src); |
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dst = ggl_blendfactor_to_needs(dst); |
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src_alpha = ggl_blendfactor_to_needs(src_alpha); |
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dst_alpha = ggl_blendfactor_to_needs(dst_alpha); |
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n |= GGL_BUILD_NEEDS( src, BLEND_SRC ); |
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n |= GGL_BUILD_NEEDS( dst, BLEND_DST ); |
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if (c->state.blend.alpha_separate) { |
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n |= GGL_BUILD_NEEDS( src_alpha, BLEND_SRCA ); |
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n |= GGL_BUILD_NEEDS( dst_alpha, BLEND_DSTA ); |
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} else { |
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n |= GGL_BUILD_NEEDS( src, BLEND_SRCA ); |
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n |= GGL_BUILD_NEEDS( dst, BLEND_DSTA ); |
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} |
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} else { |
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n |= GGL_BUILD_NEEDS( GGL_ONE, BLEND_SRC ); |
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n |= GGL_BUILD_NEEDS( GGL_ZERO, BLEND_DST ); |
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n |= GGL_BUILD_NEEDS( GGL_ONE, BLEND_SRCA ); |
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n |= GGL_BUILD_NEEDS( GGL_ZERO, BLEND_DSTA ); |
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} |
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n |= GGL_BUILD_NEEDS(c->state.mask.color^0xF, MASK_ARGB); |
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n |= GGL_BUILD_NEEDS((enables & GGL_ENABLE_SMOOTH) ?1:0, SHADE); |
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if (enables & GGL_ENABLE_TMUS) { |
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n |= GGL_BUILD_NEEDS((enables & GGL_ENABLE_W) ?1:0, W); |
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} |
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p |= GGL_BUILD_NEEDS((enables & GGL_ENABLE_DITHER) ?1:0, P_DITHER); |
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p |= GGL_BUILD_NEEDS((enables & GGL_ENABLE_AA) ?1:0, P_AA); |
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p |= GGL_BUILD_NEEDS((enables & GGL_ENABLE_FOG) ?1:0, P_FOG); |
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if (enables & GGL_ENABLE_LOGIC_OP) { |
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n |= GGL_BUILD_NEEDS(c->state.logic_op.opcode, LOGIC_OP); |
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} else { |
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n |= GGL_BUILD_NEEDS(GGL_COPY, LOGIC_OP); |
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} |
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if (enables & GGL_ENABLE_ALPHA_TEST) { |
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p |= GGL_BUILD_NEEDS(c->state.alpha_test.func, P_ALPHA_TEST); |
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} else { |
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p |= GGL_BUILD_NEEDS(GGL_ALWAYS, P_ALPHA_TEST); |
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} |
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if (enables & GGL_ENABLE_DEPTH_TEST) { |
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p |= GGL_BUILD_NEEDS(c->state.depth_test.func, P_DEPTH_TEST); |
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p |= GGL_BUILD_NEEDS(c->state.mask.depth&1, P_MASK_Z); |
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} else { |
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p |= GGL_BUILD_NEEDS(GGL_ALWAYS, P_DEPTH_TEST); |
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// writing to the z-buffer is always disabled if depth-test |
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// is disabled. |
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} |
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new_needs.n = n; |
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new_needs.p = p; |
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} |
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if (c->dirty & GGL_TMU_STATE) { |
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int idx = 0; |
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for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) { |
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const texture_t& tx = c->state.texture[i]; |
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if (tx.enable) { |
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uint32_t t = 0; |
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t |= GGL_BUILD_NEEDS(tx.surface.format, T_FORMAT); |
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t |= GGL_BUILD_NEEDS(ggl_env_to_needs(tx.env), T_ENV); |
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t |= GGL_BUILD_NEEDS(0, T_POT); // XXX: not used yet |
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if (tx.s_coord==GGL_ONE_TO_ONE && tx.t_coord==GGL_ONE_TO_ONE) { |
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// we encode 1-to-1 into the wrap mode |
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t |= GGL_BUILD_NEEDS(GGL_NEEDS_WRAP_11, T_S_WRAP); |
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t |= GGL_BUILD_NEEDS(GGL_NEEDS_WRAP_11, T_T_WRAP); |
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} else { |
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t |= GGL_BUILD_NEEDS(ggl_wrap_to_needs(tx.s_wrap), T_S_WRAP); |
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t |= GGL_BUILD_NEEDS(ggl_wrap_to_needs(tx.t_wrap), T_T_WRAP); |
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} |
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if (tx.mag_filter == GGL_LINEAR) { |
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t |= GGL_BUILD_NEEDS(1, T_LINEAR); |
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} |
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if (tx.min_filter == GGL_LINEAR) { |
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t |= GGL_BUILD_NEEDS(1, T_LINEAR); |
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} |
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new_needs.t[idx++] = t; |
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} else { |
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new_needs.t[i] = 0; |
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} |
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} |
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} |
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if (new_needs != c->state.needs) { |
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c->state.needs = new_needs; |
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ggl_pick_texture(c); |
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ggl_pick_cb(c); |
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ggl_pick_scanline(c); |
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} |
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c->dirty = 0; |
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} |
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// ---------------------------------------------------------------------------- |
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}; // namespace android |
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