diff options
Diffstat (limited to 'src/mesa/drivers/dri/ffb/ffb_bitmap.c')
| -rw-r--r-- | src/mesa/drivers/dri/ffb/ffb_bitmap.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/ffb/ffb_bitmap.c b/src/mesa/drivers/dri/ffb/ffb_bitmap.c new file mode 100644 index 00000000000..8c94bde36fa --- /dev/null +++ b/src/mesa/drivers/dri/ffb/ffb_bitmap.c @@ -0,0 +1,156 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_bitmap.c,v 1.1 2002/02/22 21:32:58 dawes Exp $ + * + * GLX Hardware Device Driver for Sun Creator/Creator3D + * Copyright (C) 2001 David S. Miller + * + * 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 + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL + * DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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. + * + * + * David S. Miller <[email protected]> + */ + +#include "ffb_context.h" +#include "ffb_state.h" +#include "ffb_lock.h" +#include "ffb_bitmap.h" +#include "swrast/swrast.h" +#include "image.h" +#include "macros.h" + +#undef FFB_BITMAP_TRACE + +static void +ffb_bitmap(GLcontext *ctx, GLint px, GLint py, + GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap) +{ + ffbContextPtr fmesa = FFB_CONTEXT(ctx); + ffb_fbcPtr ffb = fmesa->regs; + __DRIdrawablePrivate *dPriv = fmesa->driDrawable; + unsigned int ppc, pixel; + GLint row, col, row_stride; + const GLubyte *src; + char *buf; + + if (fmesa->bad_fragment_attrs != 0) + _swrast_Bitmap(ctx, px, py, width, + height, unpack, bitmap); + + pixel = (((((GLuint)(ctx->Current.RasterColor[0] * 255.0f)) & 0xff) << 0) | + ((((GLuint)(ctx->Current.RasterColor[1] * 255.0f)) & 0xff) << 8) | + ((((GLuint)(ctx->Current.RasterColor[2] * 255.0f)) & 0xff) << 16) | + ((((GLuint)(ctx->Current.RasterColor[3] * 255.0f)) & 0xff) << 24)); + +#ifdef FFB_BITMAP_TRACE + fprintf(stderr, "ffb_bitmap: ppc(%08x) fbc(%08x) cmp(%08x) pixel(%08x)\n", + fmesa->ppc, fmesa->fbc, fmesa->cmp, pixel); +#endif + + LOCK_HARDWARE(fmesa); + fmesa->hw_locked = 1; + + if (fmesa->state_dirty) + ffbSyncHardware(fmesa); + + ppc = fmesa->ppc; + + FFBFifo(fmesa, 4); + ffb->ppc = ((ppc & + ~(FFB_PPC_TBE_MASK | FFB_PPC_ZS_MASK | FFB_PPC_CS_MASK | FFB_PPC_XS_MASK)) + | (FFB_PPC_TBE_TRANSPARENT | FFB_PPC_ZS_CONST | FFB_PPC_CS_CONST | + (ctx->Color.BlendEnabled ? FFB_PPC_XS_CONST : FFB_PPC_XS_WID))); + ffb->constz = ((GLuint) (ctx->Current.RasterPos[2] * 0x0fffffff)); + ffb->fg = pixel; + ffb->fontinc = (0 << 16) | 32; + + buf = (char *)(fmesa->sfb32 + (dPriv->x << 2) + (dPriv->y << 13)); + + row_stride = (unpack->Alignment * CEILING(width, 8 * unpack->Alignment)); + src = (const GLubyte *) (bitmap + + (unpack->SkipRows * row_stride) + + (unpack->SkipPixels / 8)); + if (unpack->LsbFirst == GL_TRUE) { + for (row = 0; row < height; row++, src += row_stride) { + const GLubyte *row_src = src; + GLuint base_x, base_y; + + base_x = dPriv->x + px; + base_y = dPriv->y + (dPriv->h - (py + row)); + + FFBFifo(fmesa, 1); + ffb->fontxy = (base_y << 16) | base_x; + + for (col = 0; col < width; col += 32, row_src += 4) { + GLint bitnum, font_w = (width - col); + GLuint font_data; + + if (font_w > 32) + font_w = 32; + font_data = 0; + for (bitnum = 0; bitnum < 32; bitnum++) { + const GLubyte val = row_src[bitnum >> 3]; + + if (val & (1 << (bitnum & (8 - 1)))) + font_data |= (1 << (31 - bitnum)); + } + + FFBFifo(fmesa, 2); + ffb->fontw = font_w; + ffb->font = font_data; + } + } + } else { + for (row = 0; row < height; row++, src += row_stride) { + const GLubyte *row_src = src; + GLuint base_x, base_y; + + base_x = dPriv->x + px; + base_y = dPriv->y + (dPriv->h - (py + row)); + + FFBFifo(fmesa, 1); + ffb->fontxy = (base_y << 16) | base_x; + + for (col = 0; col < width; col += 32, row_src += 4) { + GLint font_w = (width - col); + + if (font_w > 32) + font_w = 32; + FFBFifo(fmesa, 2); + ffb->fontw = font_w; + ffb->font = (((unsigned int)row_src[0]) << 24 | + ((unsigned int)row_src[1]) << 16 | + ((unsigned int)row_src[2]) << 8 | + ((unsigned int)row_src[3]) << 0); + } + } + } + + FFBFifo(fmesa, 1); + ffb->ppc = ppc; + fmesa->ffbScreen->rp_active = 1; + + UNLOCK_HARDWARE(fmesa); + fmesa->hw_locked = 0; +} + +void ffbDDInitBitmapFuncs(GLcontext *ctx) +{ + ctx->Driver.Bitmap = ffb_bitmap; +} |