auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 384 deletions

diff --git a/libpixelflinger/buffer.cpp b/libpixelflinger/buffer.cpp
deleted file mode 100644
index af7356b..0000000
--- a/libpixelflinger/buffer.cpp
+++ /dev/null
@@ -1,384 +0,0 @@
-/* libs/pixelflinger/buffer.cpp
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-
-#include <assert.h>
-
-#include "buffer.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-static void read_pixel(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel);
-static void write_pixel(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, const pixel_t* pixel);
-static void readRGB565(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel);
-static void readABGR8888(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel);
-
-static uint32_t logic_op(int op, uint32_t s, uint32_t d);
-static uint32_t extract(uint32_t v, int h, int l, int bits);
-static uint32_t expand(uint32_t v, int sbits, int dbits);
-static uint32_t downshift_component(uint32_t in, uint32_t v,
-        int sh, int sl, int dh, int dl, int ch, int cl, int dither);
-
-// ----------------------------------------------------------------------------
-
-void ggl_init_texture(context_t* c)
-{
-    for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; i++) {
-        texture_t& t = c->state.texture[i];
-        t.s_coord = GGL_ONE_TO_ONE;
-        t.t_coord = GGL_ONE_TO_ONE;
-        t.s_wrap = GGL_REPEAT;
-        t.t_wrap = GGL_REPEAT;
-        t.min_filter = GGL_NEAREST;
-        t.mag_filter = GGL_NEAREST;
-        t.env = GGL_MODULATE;
-    }
-    c->activeTMU = &(c->state.texture[0]);
-}
-
-void ggl_set_surface(context_t* c, surface_t* dst, const GGLSurface* src)
-{
-    dst->width = src->width;
-    dst->height = src->height;
-    dst->stride = src->stride;
-    dst->data = src->data;
-    dst->format = src->format;
-    dst->dirty = 1;
-    if (__builtin_expect(dst->stride < 0, false)) {
-        const GGLFormat& pixelFormat(c->formats[dst->format]);
-        const int32_t bpr = -dst->stride * pixelFormat.size;
-        dst->data += bpr * (dst->height-1);
-    }
-}
-
-static void pick_read_write(surface_t* s)
-{
-    // Choose best reader/writers.
-    switch (s->format) {
-        case GGL_PIXEL_FORMAT_RGBA_8888:    s->read = readABGR8888;  break;
-        case GGL_PIXEL_FORMAT_RGB_565:      s->read = readRGB565;    break;
-        default:                            s->read = read_pixel;    break;
-    }
-    s->write = write_pixel;
-}
-
-void ggl_pick_texture(context_t* c)
-{
-    for (int i=0 ; i<GGL_TEXTURE_UNIT_COUNT ; ++i) {
-        surface_t& s = c->state.texture[i].surface;
-        if ((!c->state.texture[i].enable) || (!s.dirty))
-            continue;
-        s.dirty = 0;
-        pick_read_write(&s);
-        generated_tex_vars_t& gen = c->generated_vars.texture[i];
-        gen.width   = s.width;
-        gen.height  = s.height;
-        gen.stride  = s.stride;
-        gen.data    = int32_t(s.data);
-    }
-}
-
-void ggl_pick_cb(context_t* c)
-{
-    surface_t& s = c->state.buffers.color;
-    if (s.dirty) {
-        s.dirty = 0;
-        pick_read_write(&s);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-void read_pixel(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel)
-{
-    assert((x < s->width) && (y < s->height));
-
-    const GGLFormat* f = &(c->formats[s->format]);
-    int32_t index = x + (s->stride * y);
-    uint8_t* const data = s->data + index * f->size;
-    uint32_t v = 0;
-    switch (f->size) {
-        case 1:		v = *data;									break;
-        case 2:		v = *(uint16_t*)data;						break;
-        case 3:		v = (data[2]<<16)|(data[1]<<8)|data[0];     break;
-        case 4:		v = GGL_RGBA_TO_HOST(*(uint32_t*)data);		break;
-    }
-    for (int i=0 ; i<4 ; i++) {
-        pixel->s[i] = f->c[i].h - f->c[i].l;
-        if (pixel->s[i])
-            pixel->c[i] = extract(v,  f->c[i].h,  f->c[i].l, f->size*8);
-    }
-}
-
-void readRGB565(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel)
-{
-    uint16_t v = *(reinterpret_cast<uint16_t*>(s->data) + (x + (s->stride * y)));
-    pixel->c[0] = 0;
-    pixel->c[1] = v>>11;
-    pixel->c[2] = (v>>5)&0x3F;
-    pixel->c[3] = v&0x1F;
-    pixel->s[0] = 0;
-    pixel->s[1] = 5;
-    pixel->s[2] = 6;
-    pixel->s[3] = 5;
-}
-
-void readABGR8888(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, pixel_t* pixel)
-{
-    uint32_t v = *(reinterpret_cast<uint32_t*>(s->data) + (x + (s->stride * y)));
-    v = GGL_RGBA_TO_HOST(v);
-    pixel->c[0] = v>>24;        // A
-    pixel->c[1] = v&0xFF;       // R
-    pixel->c[2] = (v>>8)&0xFF;  // G
-    pixel->c[3] = (v>>16)&0xFF; // B
-    pixel->s[0] = 
-    pixel->s[1] = 
-    pixel->s[2] = 
-    pixel->s[3] = 8;
-}
-
-void write_pixel(const surface_t* s, context_t* c,
-        uint32_t x, uint32_t y, const pixel_t* pixel)
-{
-    assert((x < s->width) && (y < s->height));
-
-    int dither = -1;
-    if (c->state.enables & GGL_ENABLE_DITHER) {
-        dither = c->ditherMatrix[ (x & GGL_DITHER_MASK) +
-                ((y & GGL_DITHER_MASK)<<GGL_DITHER_ORDER_SHIFT) ];
-    }
-
-    const GGLFormat* f = &(c->formats[s->format]);
-    int32_t index = x + (s->stride * y);
-    uint8_t* const data = s->data + index * f->size;
-        
-    uint32_t mask = 0;
-    uint32_t v = 0;
-    for (int i=0 ; i<4 ; i++) {
-        const int component_mask = 1 << i;
-        if (f->components>=GGL_LUMINANCE &&
-                (i==GGLFormat::GREEN || i==GGLFormat::BLUE)) {
-            // destinations L formats don't have G or B
-            continue;
-        }
-        const int l = f->c[i].l;
-        const int h = f->c[i].h;
-        if (h && (c->state.mask.color & component_mask)) {
-            mask |= (((1<<(h-l))-1)<<l);
-            uint32_t u = pixel->c[i];
-            int32_t pixelSize = pixel->s[i];
-            if (pixelSize < (h-l)) {
-                u = expand(u, pixelSize, h-l);
-                pixelSize = h-l;
-            }
-            v = downshift_component(v, u, pixelSize, 0, h, l, 0, 0, dither);
-        }
-    }
-
-    if ((c->state.mask.color != 0xF) || 
-        (c->state.enables & GGL_ENABLE_LOGIC_OP)) {
-        uint32_t d = 0;
-        switch (f->size) {
-            case 1:	d = *data;									break;
-            case 2:	d = *(uint16_t*)data;						break;
-            case 3:	d = (data[2]<<16)|(data[1]<<8)|data[0];     break;
-            case 4:	d = GGL_RGBA_TO_HOST(*(uint32_t*)data);		break;
-        }
-        if (c->state.enables & GGL_ENABLE_LOGIC_OP) {
-            v = logic_op(c->state.logic_op.opcode, v, d);            
-            v &= mask;
-        }
-        v |= (d & ~mask);
-    }
-
-    switch (f->size) {
-        case 1:		*data = v;									break;
-        case 2:		*(uint16_t*)data = v;						break;
-        case 3:
-            data[0] = v;
-            data[1] = v>>8;
-            data[2] = v>>16;
-            break;
-        case 4:		*(uint32_t*)data = GGL_HOST_TO_RGBA(v);     break;
-    }
-}
-
-static uint32_t logic_op(int op, uint32_t s, uint32_t d)
-{
-    switch(op) {
-    case GGL_CLEAR:         return 0;
-    case GGL_AND:           return s & d;
-    case GGL_AND_REVERSE:   return s & ~d;
-    case GGL_COPY:          return s;
-    case GGL_AND_INVERTED:  return ~s & d;
-    case GGL_NOOP:          return d;
-    case GGL_XOR:           return s ^ d;
-    case GGL_OR:            return s | d;
-    case GGL_NOR:           return ~(s | d);
-    case GGL_EQUIV:         return ~(s ^ d);
-    case GGL_INVERT:        return ~d;
-    case GGL_OR_REVERSE:    return s | ~d;
-    case GGL_COPY_INVERTED: return ~s;
-    case GGL_OR_INVERTED:   return ~s | d;
-    case GGL_NAND:          return ~(s & d);
-    case GGL_SET:           return ~0;
-    };
-    return s;
-}            
-
-
-uint32_t ggl_expand(uint32_t v, int sbits, int dbits)
-{
-    return expand(v, sbits, dbits);
-}
-
-uint32_t ggl_pack_color(context_t* c, int32_t format,
-        GGLcolor r, GGLcolor g, GGLcolor b, GGLcolor a)
-{
-    const GGLFormat* f = &(c->formats[format]);
-    uint32_t p = 0;
-    const int32_t hbits = GGL_COLOR_BITS;
-    const int32_t lbits = GGL_COLOR_BITS - 8;
-    p = downshift_component(p, r,   hbits, lbits,  f->rh, f->rl, 0, 1, -1);
-    p = downshift_component(p, g,   hbits, lbits,  f->gh, f->gl, 0, 1, -1);
-    p = downshift_component(p, b,   hbits, lbits,  f->bh, f->bl, 0, 1, -1);
-    p = downshift_component(p, a,   hbits, lbits,  f->ah, f->al, 0, 1, -1);
-    switch (f->size) {
-    case 1: p |= p << 8;    // fallthrough
-    case 2: p |= p << 16;
-    }
-    return p;
-}
-
-// ----------------------------------------------------------------------------
-
-// extract a component from a word
-uint32_t extract(uint32_t v, int h, int l, int bits)
-{
-	assert(h);
-	if (l) {
-		v >>= l;
-	}
-	if (h != bits) {
-		v &= (1<<(h-l))-1;
-	}
-	return v;
-}
-
-// expand a component from sbits to dbits
-uint32_t expand(uint32_t v, int sbits, int dbits)
-{
-    if (dbits > sbits) {
-        assert(sbits);
-        if (sbits==1) {
-            v = (v<<dbits) - v;
-        } else {
-            if (dbits % sbits) {
-                v <<= (dbits-sbits);
-                dbits -= sbits;
-                do {
-                    v |= v>>sbits;
-                    dbits -= sbits;
-                    sbits *= 2;
-                } while (dbits>0);
-            } else {
-                dbits -= sbits;
-                do {
-                    v |= v<<sbits;
-                    dbits -= sbits;
-                    if (sbits*2 < dbits) {
-                        sbits *= 2;
-                    }
-                } while (dbits > 0);
-            }
-        }
-    }
-	return v;
-}
-
-// downsample a component from sbits to dbits
-// and shift / construct the pixel
-uint32_t downshift_component(	uint32_t in, uint32_t v,
-                                int sh, int sl,		// src
-                                int dh, int dl,		// dst
-                                int ch, int cl,		// clear
-                                int dither)
-{
-	const int sbits = sh-sl;
-	const int dbits = dh-dl;
-    
-	assert(sbits>=dbits);
-
-
-    if (sbits>dbits) {
-        if (dither>=0) {
-            v -= (v>>dbits);				// fix up
-            const int shift = (GGL_DITHER_BITS - (sbits-dbits));
-            if (shift >= 0)   v += (dither >> shift) << sl;
-            else              v += (dither << (-shift)) << sl;
-        } else {
-            // don't do that right now, so we can reproduce the same
-            // artifacts we get on ARM (Where we don't do this)
-            // -> this is not really needed if we don't dither
-            //if (dBits > 1) { // result already OK if dBits==1
-            //    v -= (v>>dbits);				// fix up
-            //    v += 1 << ((sbits-dbits)-1);	// rounding
-            //}
-        }
-    }
-
-
-	// we need to clear the high bits of the source
-	if (ch) {
-		v <<= 32-sh;
-		sl += 32-sh;
-        sh = 32;
-	}
-	
-	if (dl) {
-		if (cl || (sbits>dbits)) {
-			v >>= sh-dbits;
-			sl = 0;
-			sh = dbits;
-            in |= v<<dl;
-		} else {
-			// sbits==dbits and we don't need to clean the lower bits
-			// so we just have to shift the component to the right location
-            int shift = dh-sh;
-            in |= v<<shift;
-		}
-	} else {
-		// destination starts at bit 0
-		// ie: sh-dh == sh-dbits
-		int shift = sh-dh;
-		if (shift > 0)      in |= v>>shift;
-		else if (shift < 0) in |= v<<shift;
-		else                in |= v;
-	}
-	return in;
-}
-
-// ----------------------------------------------------------------------------
-}; // namespace android