diff options
Diffstat (limited to 'libpixelflinger/raster.cpp')
| -rw-r--r-- | libpixelflinger/raster.cpp | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/libpixelflinger/raster.cpp b/libpixelflinger/raster.cpp deleted file mode 100644 index d7512029..00000000 --- a/libpixelflinger/raster.cpp +++ /dev/null @@ -1,217 +0,0 @@ -/* libs/pixelflinger/raster.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 <string.h> - -#include "raster.h" -#include "trap.h" - -namespace android { - -static void ggl_rasterPos2x(void* con, GGLfixed x, GGLfixed y); -static void ggl_rasterPos2i(void* con, GGLint x, GGLint y); -static void ggl_copyPixels(void* con, GGLint xs, GGLint ys, - GGLsizei width, GGLsizei height, GGLenum type); - -void ggl_init_raster(context_t* c) -{ - GGLContext& procs = *(GGLContext*)c; - GGL_INIT_PROC(procs, copyPixels); - GGL_INIT_PROC(procs, rasterPos2x); - GGL_INIT_PROC(procs, rasterPos2i); -} - -void ggl_rasterPos2x(void* con, GGLfixed x, GGLfixed y) -{ - GGL_CONTEXT(c, con); - // raster pos should be processed just like glVertex - c->state.raster.x = x; - c->state.raster.y = y; -} - -void ggl_rasterPos2i(void* con, GGLint x, GGLint y) -{ - ggl_rasterPos2x(con, gglIntToFixed(x), gglIntToFixed(y)); -} - -void ggl_copyPixels(void* con, GGLint xs, GGLint ys, - GGLsizei width, GGLsizei height, GGLenum type) -{ - GGL_CONTEXT(c, con); - - // color-buffer - surface_t* cb = &(c->state.buffers.color); - - // undefined behaviour if we try to copy from outside the surface - if (uint32_t(xs) > cb->width) - return; - if (uint32_t(ys) > cb->height) - return; - if (uint32_t(xs + width) > cb->width) - return; - if (uint32_t(ys + height) > cb->height) - return; - - // copy to current raster position - GGLint xd = gglFixedToIntRound(c->state.raster.x); - GGLint yd = gglFixedToIntRound(c->state.raster.y); - - // clip to scissor - if (xd < GGLint(c->state.scissor.left)) { - GGLint offset = GGLint(c->state.scissor.left) - xd; - xd = GGLint(c->state.scissor.left); - xs += offset; - width -= offset; - } - if (yd < GGLint(c->state.scissor.top)) { - GGLint offset = GGLint(c->state.scissor.top) - yd; - yd = GGLint(c->state.scissor.top); - ys += offset; - height -= offset; - } - if ((xd + width) > GGLint(c->state.scissor.right)) { - width = GGLint(c->state.scissor.right) - xd; - } - if ((yd + height) > GGLint(c->state.scissor.bottom)) { - height = GGLint(c->state.scissor.bottom) - yd; - } - - if (width<=0 || height<=0) { - return; // nothing to copy - } - - if (xs==xd && ys==yd) { - // nothing to do, but be careful, this might not be true when we support - // gglPixelTransfer, gglPixelMap and gglPixelZoom - return; - } - - const GGLFormat* fp = &(c->formats[cb->format]); - uint8_t* src = reinterpret_cast<uint8_t*>(cb->data) - + (xs + (cb->stride * ys)) * fp->size; - uint8_t* dst = reinterpret_cast<uint8_t*>(cb->data) - + (xd + (cb->stride * yd)) * fp->size; - const size_t bpr = cb->stride * fp->size; - const size_t rowsize = width * fp->size; - size_t yc = height; - - if (ys < yd) { - // bottom to top - src += height * bpr; - dst += height * bpr; - do { - dst -= bpr; - src -= bpr; - memcpy(dst, src, rowsize); - } while (--yc); - } else { - if (ys == yd) { - // might be right to left - do { - memmove(dst, src, rowsize); - dst += bpr; - src += bpr; - } while (--yc); - } else { - // top to bottom - do { - memcpy(dst, src, rowsize); - dst += bpr; - src += bpr; - } while (--yc); - } - } -} - -}; // namespace android - -using namespace android; - -GGLint gglBitBlti(GGLContext* con, int tmu, GGLint crop[4], GGLint where[4]) -{ - GGL_CONTEXT(c, (void*)con); - - GGLint x = where[0]; - GGLint y = where[1]; - GGLint w = where[2]; - GGLint h = where[3]; - - // exclsively enable this tmu - const GGLSurface& cbSurface = c->state.buffers.color.s; - c->procs.activeTexture(c, tmu); - c->procs.disable(c, GGL_W_LERP); - - uint32_t tmus = 1UL<<tmu; - if (c->state.enabled_tmu != tmus) { - c->activeTMU->enable = 1; - c->state.enabled_tmu = tmus; - c->state.enables |= GGL_ENABLE_TMUS; - ggl_state_changed(c, GGL_TMU_STATE); - } - - const GGLint Wcr = crop[2]; - const GGLint Hcr = crop[3]; - if ((w == Wcr) && (h == Hcr)) { - c->procs.texGeni(c, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); - c->procs.texGeni(c, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); - const GGLint Ucr = crop[0]; - const GGLint Vcr = crop[1]; - const GGLint s0 = Ucr - x; - const GGLint t0 = Vcr - y; - c->procs.texCoord2i(c, s0, t0); - c->procs.recti(c, x, y, x+w, y+h); - } else { - int32_t texcoords[8]; - x = gglIntToFixed(x); - y = gglIntToFixed(y); - - // we CLAMP here, which works with premultiplied (s,t) - c->procs.texParameteri(c, GGL_TEXTURE_2D, GGL_TEXTURE_WRAP_S, GGL_CLAMP); - c->procs.texParameteri(c, GGL_TEXTURE_2D, GGL_TEXTURE_WRAP_T, GGL_CLAMP); - c->procs.texGeni(c, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_AUTOMATIC); - c->procs.texGeni(c, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_AUTOMATIC); - - const GGLint Ucr = crop[0] << 16; - const GGLint Vcr = crop[1] << 16; - const GGLint Wcr = crop[2] << 16; - const GGLint Hcr = crop[3] << 16; - - // computes texture coordinates (pre-multiplied) - int32_t dsdx = Wcr / w; // dsdx = ((Wcr/w)/Wt)*Wt - int32_t dtdy = Hcr / h; // dtdy = ((Hcr/h)/Ht)*Ht - int32_t s0 = Ucr - gglMulx(dsdx, x); // s0 = Ucr - x * dsdx - int32_t t0 = Vcr - gglMulx(dtdy, y); // t0 = Vcr - y * dtdy - texcoords[0] = s0; - texcoords[1] = dsdx; - texcoords[2] = 0; - texcoords[3] = t0; - texcoords[4] = 0; - texcoords[5] = dtdy; - texcoords[6] = 0; - texcoords[7] = 0; - c->procs.texCoordGradScale8xv(c, tmu, texcoords); - c->procs.recti(c, - gglFixedToIntRound(x), - gglFixedToIntRound(y), - gglFixedToIntRound(x)+w, - gglFixedToIntRound(y)+h); - } - return 0; -} - |
