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Diffstat (limited to 'trunk/src/emu/drawgfxm.h')
-rw-r--r-- | trunk/src/emu/drawgfxm.h | 1228 |
1 files changed, 1228 insertions, 0 deletions
diff --git a/trunk/src/emu/drawgfxm.h b/trunk/src/emu/drawgfxm.h new file mode 100644 index 00000000000..a6e68c6b133 --- /dev/null +++ b/trunk/src/emu/drawgfxm.h @@ -0,0 +1,1228 @@ +/********************************************************************* + + drawgfxm.h + + Macros implementing drawgfx core operations. Drivers can use + these if they need custom behavior not provided by the existing + drawgfx functions. + + Copyright Nicola Salmoria and the MAME Team. + Visit http://mamedev.org for licensing and usage restrictions. + +********************************************************************** + + How to use these macros: + + There are two sets of macros. The PIXEL_OP* macros are simple + per-pixel operations, designed to take a SOURCE pixel and + copy it to the DEST, perhaps updating the PRIORITY pixel as + well. On their own, they are not particularly useful. + + The second set of macros represents the core gfx/bitmap walking + and rendering code. These macros generally take the target pixel + type (UINT8, UINT16, UINT32), one of the PIXEL_OP* macros, + and a priority bitmap pixel type (UINT8, UINT16, UINT32, or the + special type NO_PRIORITY). + + Although the code may look inefficient at first, the compiler is + able to easily optimize out unused cases due to the way the + macros are written, leaving behind just the cases we are + interested in. + + The general approach for using these macros is: + + my_drawing_function(params) + { + // ensure that all the required parameters for the mega + // macro are defined (if they are not needed, just declare + // the variables and set them equal to a known constant + // value to help the compiler) + + // set up any additional variables needed by the PIXEL_OP* + // macro you want to use (each macro has its own + // requirements) + + MEGA_MACRO(BITMAP_TYPE, PIXEL_OP, PRIORITY_TYPE); + } + +*********************************************************************/ + +#pragma once + +#ifndef __DRAWGFXM_H__ +#define __DRAWGFXM_H__ + +#include "profiler.h" + + +/* special priority type meaning "none" */ +typedef struct { char dummy[3]; } NO_PRIORITY; + +extern bitmap_ind8 drawgfx_dummy_priority_bitmap; +#define DECLARE_NO_PRIORITY bitmap_t &priority = drawgfx_dummy_priority_bitmap; + + +/* macros for using the optional priority */ +#define PRIORITY_VALID(x) (sizeof(x) != sizeof(NO_PRIORITY)) +#define PRIORITY_ADDR(p,t,y,x) (PRIORITY_VALID(t) ? (&(p).pixt<t>(y, x)) : NULL) +#define PRIORITY_ADVANCE(t,p,i) do { if (PRIORITY_VALID(t)) (p) += (i); } while (0) + + +/*************************************************************************** + PIXEL OPERATIONS +***************************************************************************/ + +/*------------------------------------------------- + PIXEL_OP_COPY_OPAQUE - render all pixels + regardless of pen, copying directly +-------------------------------------------------*/ + +#define PIXEL_OP_COPY_OPAQUE(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + (DEST) = SOURCE; \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_COPY_TRANSPEN - render all pixels + except those matching 'transpen', copying + directly +-------------------------------------------------*/ + +#define PIXEL_OP_COPY_TRANSPEN(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + (DEST) = SOURCE; \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REMAP_OPAQUE - render all pixels + regardless of pen, mapping the pen via the + 'paldata' array +-------------------------------------------------*/ + +#define PIXEL_OP_REMAP_OPAQUE(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + (DEST) = paldata[SOURCE]; \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_OPAQUE_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + if (((1 << ((PRIORITY) & 0x1f)) & pmask) == 0) \ + (DEST) = paldata[SOURCE]; \ + (PRIORITY) = 31; \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REMAP_TRANSPEN - render all pixels + except those matching 'transpen', mapping the + pen via the 'paldata' array +-------------------------------------------------*/ + +#define PIXEL_OP_REMAP_TRANSPEN(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + (DEST) = paldata[srcdata]; \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSPEN_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + { \ + if (((1 << ((PRIORITY) & 0x1f)) & pmask) == 0) \ + (DEST) = paldata[srcdata]; \ + (PRIORITY) = 31; \ + } \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REBASE_TRANSPEN - render all pixels + except those matching 'transpen', adding + 'color' to the pen value +-------------------------------------------------*/ + +#define PIXEL_OP_REBASE_TRANSPEN(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + (DEST) = color + srcdata; \ +} \ +while (0) \ + +#define PIXEL_OP_REBASE_TRANSPEN_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + { \ + if (((1 << ((PRIORITY) & 0x1f)) & pmask) == 0) \ + (DEST) = color + srcdata; \ + (PRIORITY) = 31; \ + } \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REMAP_TRANSMASK - render all pixels + except those matching 'transmask', mapping the + pen via the 'paldata' array +-------------------------------------------------*/ + +#define PIXEL_OP_REMAP_TRANSMASK(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (((transmask >> srcdata) & 1) == 0) \ + (DEST) = paldata[srcdata]; \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSMASK_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (((transmask >> srcdata) & 1) == 0) \ + { \ + if (((1 << ((PRIORITY) & 0x1f)) & pmask) == 0) \ + (DEST) = paldata[srcdata]; \ + (PRIORITY) = 31; \ + } \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REMAP_TRANSTABLE - look up each pen in + 'pentable'; if the entry is DRAWMODE_NONE, + don't draw it; if the entry is DRAWMODE_SOURCE, + look up the pen via the 'paldata' array; if the + entry is DRAWMODE_SHADOW, generate a shadow of + the destination pixel using 'shadowtable' +-------------------------------------------------*/ + +#define PIXEL_OP_REMAP_TRANSTABLE16(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + UINT32 entry = pentable[srcdata]; \ + if (entry != DRAWMODE_NONE) \ + { \ + if (entry == DRAWMODE_SOURCE) \ + (DEST) = paldata[srcdata]; \ + else \ + (DEST) = shadowtable[DEST]; \ + } \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSTABLE32(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + UINT32 entry = pentable[srcdata]; \ + if (entry != DRAWMODE_NONE) \ + { \ + if (entry == DRAWMODE_SOURCE) \ + (DEST) = paldata[srcdata]; \ + else \ + (DEST) = shadowtable[rgb_to_rgb15(DEST)]; \ + } \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSTABLE16_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + UINT32 entry = pentable[srcdata]; \ + if (entry != DRAWMODE_NONE) \ + { \ + UINT8 pridata = (PRIORITY); \ + if (entry == DRAWMODE_SOURCE) \ + { \ + if (((1 << (pridata & 0x1f)) & pmask) == 0) \ + (DEST) = paldata[srcdata]; \ + (PRIORITY) = 31; \ + } \ + else if ((pridata & 0x80) == 0 && ((1 << (pridata & 0x1f)) & pmask) == 0) \ + { \ + (DEST) = shadowtable[DEST]; \ + (PRIORITY) = pridata | 0x80; \ + } \ + } \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSTABLE32_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + UINT32 entry = pentable[srcdata]; \ + if (entry != DRAWMODE_NONE) \ + { \ + UINT8 pridata = (PRIORITY); \ + if (entry == DRAWMODE_SOURCE) \ + { \ + if (((1 << (pridata & 0x1f)) & pmask) == 0) \ + (DEST) = paldata[srcdata]; \ + (PRIORITY) = 31; \ + } \ + else if ((pridata & 0x80) == 0 && ((1 << (pridata & 0x1f)) & pmask) == 0) \ + { \ + (DEST) = shadowtable[rgb_to_rgb15(DEST)]; \ + (PRIORITY) = pridata | 0x80; \ + } \ + } \ +} \ +while (0) \ + + +/*------------------------------------------------- + PIXEL_OP_REMAP_TRANSPEN_ALPHA - render all + pixels except those matching 'transpen', + mapping the pen to via the 'paldata' array; + the resulting color is RGB alpha blended + against the destination using 'alpha' +-------------------------------------------------*/ + +#define PIXEL_OP_REMAP_TRANSPEN_ALPHA32(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + (DEST) = alpha_blend_r32((DEST), paldata[srcdata], alpha); \ +} \ +while (0) \ + +#define PIXEL_OP_REMAP_TRANSPEN_ALPHA32_PRIORITY(DEST, PRIORITY, SOURCE) \ +do \ +{ \ + UINT32 srcdata = (SOURCE); \ + if (srcdata != transpen) \ + { \ + if (((1 << ((PRIORITY) & 0x1f)) & pmask) == 0) \ + (DEST) = alpha_blend_r32((DEST), paldata[srcdata], alpha); \ + (PRIORITY) = 31; \ + } \ +} \ +while (0) \ + + + +/*************************************************************************** + BASIC DRAWGFX CORE +***************************************************************************/ + +/* + Assumed input parameters or local variables: + + bitmap_t &dest - the bitmap to render to + const rectangle &cliprect - a clipping rectangle (assumed to be clipped to the size of 'dest') + const gfx_element *gfx - pointer to the gfx_element to render + UINT32 code - index of the entry within gfx_element + UINT32 color - index of the color within gfx_element + int flipx - non-zero means render right-to-left instead of left-to-right + int flipy - non-zero means render bottom-to-top instead of top-to-bottom + INT32 destx - the top-left X coordinate to render to + INT32 desty - the top-left Y coordinate to render to + bitmap_t &priority - the priority bitmap (even if PRIORITY_TYPE is NO_PRIORITY, at least needs a dummy) +*/ + + +#define DRAWGFX_CORE(PIXEL_TYPE, PIXEL_OP, PRIORITY_TYPE) \ +do { \ + g_profiler.start(PROFILER_DRAWGFX); \ + do { \ + const UINT8 *srcdata; \ + INT32 destendx, destendy; \ + INT32 srcx, srcy; \ + INT32 curx, cury; \ + INT32 dy; \ + \ + assert(dest.valid()); \ + assert(gfx != NULL); \ + assert(!PRIORITY_VALID(PRIORITY_TYPE) || priority.valid()); \ + assert(dest.cliprect().contains(cliprect)); \ + assert(code < gfx->total_elements); \ + \ + /* ignore empty/invalid cliprects */ \ + if (cliprect.empty()) \ + break; \ + \ + /* compute final pixel in X and exit if we are entirely clipped */ \ + destendx = destx + gfx->width - 1; \ + if (destx > cliprect.max_x || destendx < cliprect.min_x) \ + break; \ + \ + /* apply left clip */ \ + srcx = 0; \ + if (destx < cliprect.min_x) \ + { \ + srcx = cliprect.min_x - destx; \ + destx = cliprect.min_x; \ + } \ + \ + /* apply right clip */ \ + if (destendx > cliprect.max_x) \ + destendx = cliprect.max_x; \ + \ + /* compute final pixel in Y and exit if we are entirely clipped */ \ + destendy = desty + gfx->height - 1; \ + if (desty > cliprect.max_y || destendy < cliprect.min_y) \ + break; \ + \ + /* apply top clip */ \ + srcy = 0; \ + if (desty < cliprect.min_y) \ + { \ + srcy = cliprect.min_y - desty; \ + desty = cliprect.min_y; \ + } \ + \ + /* apply bottom clip */ \ + if (destendy > cliprect.max_y) \ + destendy = cliprect.max_y; \ + \ + /* apply X flipping */ \ + if (flipx) \ + srcx = gfx->width - 1 - srcx; \ + \ + /* apply Y flipping */ \ + dy = gfx->line_modulo; \ + if (flipy) \ + { \ + srcy = gfx->height - 1 - srcy; \ + dy = -dy; \ + } \ + \ + /* fetch the source data */ \ + srcdata = gfx_element_get_data(gfx, code); \ + \ + /* compute how many blocks of 4 pixels we have */ \ + UINT32 numblocks = (destendx + 1 - destx) / 4; \ + UINT32 leftovers = (destendx + 1 - destx) - 4 * numblocks; \ + \ + /* adjust srcdata to point to the first source pixel of the row */ \ + srcdata += srcy * gfx->line_modulo + srcx; \ + \ + /* non-flipped 8bpp case */ \ + if (!flipx) \ + { \ + /* iterate over pixels in Y */ \ + for (cury = desty; cury <= destendy; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, destx); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, destx); \ + const UINT8 *srcptr = srcdata; \ + srcdata += dy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[1]); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[2]); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[3]); \ + \ + srcptr += 4; \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcptr++; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + \ + /* flipped 8bpp case */ \ + else \ + { \ + /* iterate over pixels in Y */ \ + for (cury = desty; cury <= destendy; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, destx); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, destx); \ + const UINT8 *srcptr = srcdata; \ + srcdata += dy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[ 0]); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[-1]); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[-2]); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[-3]); \ + \ + srcptr -= 4; \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcptr--; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + } while (0); \ + g_profiler.stop(); \ +} while (0) + + + +/*************************************************************************** + BASIC DRAWGFXZOOM CORE +***************************************************************************/ + +/* + Assumed input parameters or local variables: + + bitmap_t &dest - the bitmap to render to + const rectangle &cliprect - a clipping rectangle (assumed to be clipped to the size of 'dest') + const gfx_element *gfx - pointer to the gfx_element to render + UINT32 code - index of the entry within gfx_element + UINT32 color - index of the color within gfx_element + int flipx - non-zero means render right-to-left instead of left-to-right + int flipy - non-zero means render bottom-to-top instead of top-to-bottom + INT32 destx - the top-left X coordinate to render to + INT32 desty - the top-left Y coordinate to render to + UINT32 scalex - the 16.16 scale factor in the X dimension + UINT32 scaley - the 16.16 scale factor in the Y dimension + bitmap_t &priority - the priority bitmap (even if PRIORITY_TYPE is NO_PRIORITY, at least needs a dummy) +*/ + + +#define DRAWGFXZOOM_CORE(PIXEL_TYPE, PIXEL_OP, PRIORITY_TYPE) \ +do { \ + g_profiler.start(PROFILER_DRAWGFX); \ + do { \ + const UINT8 *srcdata; \ + UINT32 dstwidth, dstheight; \ + INT32 destendx, destendy; \ + INT32 srcx, srcy; \ + INT32 curx, cury; \ + INT32 dx, dy; \ + \ + assert(dest.valid()); \ + assert(gfx != NULL); \ + assert(!PRIORITY_VALID(PRIORITY_TYPE) || priority.valid()); \ + assert(dest.cliprect().contains(cliprect)); \ + \ + /* ignore empty/invalid cliprects */ \ + if (cliprect.empty()) \ + break; \ + \ + /* compute scaled size */ \ + dstwidth = (scalex * gfx->width + 0x8000) >> 16; \ + dstheight = (scaley * gfx->height + 0x8000) >> 16; \ + if (dstwidth < 1 || dstheight < 1) \ + break; \ + \ + /* compute 16.16 source steps in dx and dy */ \ + dx = (gfx->width << 16) / dstwidth; \ + dy = (gfx->height << 16) / dstheight; \ + \ + /* compute final pixel in X and exit if we are entirely clipped */ \ + destendx = destx + dstwidth - 1; \ + if (destx > cliprect.max_x || destendx < cliprect.min_x) \ + break; \ + \ + /* apply left clip */ \ + srcx = 0; \ + if (destx < cliprect.min_x) \ + { \ + srcx = (cliprect.min_x - destx) * dx; \ + destx = cliprect.min_x; \ + } \ + \ + /* apply right clip */ \ + if (destendx > cliprect.max_x) \ + destendx = cliprect.max_x; \ + \ + /* compute final pixel in Y and exit if we are entirely clipped */ \ + destendy = desty + dstheight - 1; \ + if (desty > cliprect.max_y || destendy < cliprect.min_y) \ + { \ + g_profiler.stop(); \ + return; \ + } \ + \ + /* apply top clip */ \ + srcy = 0; \ + if (desty < cliprect.min_y) \ + { \ + srcy = (cliprect.min_y - desty) * dy; \ + desty = cliprect.min_y; \ + } \ + \ + /* apply bottom clip */ \ + if (destendy > cliprect.max_y) \ + destendy = cliprect.max_y; \ + \ + /* apply X flipping */ \ + if (flipx) \ + { \ + srcx = (dstwidth - 1) * dx - srcx; \ + dx = -dx; \ + } \ + \ + /* apply Y flipping */ \ + if (flipy) \ + { \ + srcy = (dstheight - 1) * dy - srcy; \ + dy = -dy; \ + } \ + \ + /* fetch the source data */ \ + srcdata = gfx_element_get_data(gfx, code); \ + \ + /* compute how many blocks of 4 pixels we have */ \ + UINT32 numblocks = (destendx + 1 - destx) / 4; \ + UINT32 leftovers = (destendx + 1 - destx) - 4 * numblocks; \ + \ + /* iterate over pixels in Y */ \ + for (cury = desty; cury <= destendy; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, destx); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, destx); \ + const UINT8 *srcptr = srcdata + (srcy >> 16) * gfx->line_modulo; \ + INT32 cursrcx = srcx; \ + srcy += dy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[cursrcx >> 16]); \ + cursrcx += dx; \ + PIXEL_OP(destptr[1], priptr[1], srcptr[cursrcx >> 16]); \ + cursrcx += dx; \ + PIXEL_OP(destptr[2], priptr[2], srcptr[cursrcx >> 16]); \ + cursrcx += dx; \ + PIXEL_OP(destptr[3], priptr[3], srcptr[cursrcx >> 16]); \ + cursrcx += dx; \ + \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[cursrcx >> 16]); \ + cursrcx += dx; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } while (0); \ + g_profiler.stop(); \ +} while (0) + + + +/*************************************************************************** + BASIC COPYBITMAP CORE +***************************************************************************/ + +/* + Assumed input parameters or local variables: + + bitmap_t &dest - the bitmap to copy to + bitmap_t &src - the bitmap to copy from (must be same bpp as dest) + const rectangle &cliprect - a clipping rectangle (assumed to be clipped to the size of 'dest') + int flipx - non-zero means render right-to-left instead of left-to-right + int flipy - non-zero means render bottom-to-top instead of top-to-bottom + INT32 destx - the top-left X coordinate to copy to + INT32 desty - the top-left Y coordinate to copy to + bitmap_t &priority - the priority bitmap (even if PRIORITY_TYPE is NO_PRIORITY, at least needs a dummy) +*/ + +#define COPYBITMAP_CORE(PIXEL_TYPE, PIXEL_OP, PRIORITY_TYPE) \ +do { \ + g_profiler.start(PROFILER_COPYBITMAP); \ + do { \ + const PIXEL_TYPE *srcdata; \ + UINT32 numblocks, leftovers; \ + INT32 destendx, destendy; \ + INT32 srcx, srcy; \ + INT32 curx, cury; \ + INT32 dx, dy; \ + \ + assert(dest.valid()); \ + assert(src.valid()); \ + assert(!PRIORITY_VALID(PRIORITY_TYPE) || priority.valid()); \ + assert(dest.cliprect().contains(cliprect)); \ + \ + /* ignore empty/invalid cliprects */ \ + if (cliprect.empty()) \ + break; \ + \ + /* standard setup; dx counts bytes in X, dy counts pixels in Y */ \ + dx = 1; \ + dy = src.rowpixels(); \ + \ + /* compute final pixel in X and exit if we are entirely clipped */ \ + destendx = destx + src.width() - 1; \ + if (destx > cliprect.max_x || destendx < cliprect.min_x) \ + break; \ + \ + /* apply left clip */ \ + srcx = 0; \ + if (destx < cliprect.min_x) \ + { \ + srcx = cliprect.min_x - destx; \ + destx = cliprect.min_x; \ + } \ + \ + /* apply right clip */ \ + if (destendx > cliprect.max_x) \ + destendx = cliprect.max_x; \ + \ + /* compute final pixel in Y and exit if we are entirely clipped */ \ + destendy = desty + src.height() - 1; \ + if (desty > cliprect.max_y || destendy < cliprect.min_y) \ + break; \ + \ + /* apply top clip */ \ + srcy = 0; \ + if (desty < cliprect.min_y) \ + { \ + srcy = cliprect.min_y - desty; \ + desty = cliprect.min_y; \ + } \ + \ + /* apply bottom clip */ \ + if (destendy > cliprect.max_y) \ + destendy = cliprect.max_y; \ + \ + /* apply X flipping */ \ + if (flipx) \ + { \ + srcx = src.width() - 1 - srcx; \ + dx = -dx; \ + } \ + \ + /* apply Y flipping */ \ + if (flipy) \ + { \ + srcy = src.height() - 1 - srcy; \ + dy = -dy; \ + } \ + \ + /* compute how many blocks of 4 pixels we have */ \ + numblocks = (destendx + 1 - destx) / 4; \ + leftovers = (destendx + 1 - destx) - 4 * numblocks; \ + \ + /* compute the address of the first source pixel of the first row */ \ + srcdata = &src.pixt<PIXEL_TYPE>(srcy, srcx); \ + \ + /* non-flipped case */ \ + if (!flipx) \ + { \ + /* iterate over pixels in Y */ \ + for (cury = desty; cury <= destendy; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, destx); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, destx); \ + const PIXEL_TYPE *srcptr = srcdata; \ + srcdata += dy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[1]); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[2]); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[3]); \ + \ + srcptr += 4; \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcptr++; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + \ + /* flipped case */ \ + else \ + { \ + /* iterate over pixels in Y */ \ + for (cury = desty; cury <= destendy; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, destx); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, destx); \ + const PIXEL_TYPE *srcptr = srcdata; \ + srcdata += dy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[ 0]); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[-1]); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[-2]); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[-3]); \ + \ + srcptr -= 4; \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcptr--; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + } while (0); \ + g_profiler.stop(); \ +} while (0) + + + +/*************************************************************************** + BASIC COPYROZBITMAP CORE +***************************************************************************/ + +/* + Assumed input parameters or local variables: + + bitmap_t &dest - the bitmap to copy to + bitmap_t &src - the bitmap to copy from (must be same bpp as dest) + const rectangle &cliprect - a clipping rectangle (assumed to be clipped to the size of 'dest') + INT32 destx - the 16.16 source X position at destination pixel (0,0) + INT32 desty - the 16.16 source Y position at destination pixel (0,0) + INT32 incxx - the 16.16 amount to increment in source X for each destination X pixel + INT32 incyx - the 16.16 amount to increment in source Y for each destination X pixel + INT32 incxy - the 16.16 amount to increment in source X for each destination Y pixel + INT32 incyy - the 16.16 amount to increment in source Y for each destination Y pixel + int wraparound - non-zero means wrap when hitting the edges of the source + bitmap_t &priority - the priority bitmap (even if PRIORITY_TYPE is NO_PRIORITY, at least needs a dummy) +*/ + +#define COPYROZBITMAP_CORE(PIXEL_TYPE, PIXEL_OP, PRIORITY_TYPE) \ +do { \ + UINT32 srcfixwidth, srcfixheight; \ + UINT32 numblocks, leftovers; \ + INT32 curx, cury; \ + \ + g_profiler.start(PROFILER_COPYBITMAP); \ + \ + assert(dest.valid()); \ + assert(dest.valid()); \ + assert(!PRIORITY_VALID(PRIORITY_TYPE) || priority.valid()); \ + assert(dest.cliprect().contains(cliprect)); \ + assert(!wraparound || (src.width() & (src.width() - 1)) == 0); \ + assert(!wraparound || (src.height() & (src.height() - 1)) == 0); \ + \ + /* ignore empty/invalid cliprects */ \ + if (cliprect.empty()) \ + break; \ + \ + /* compute fixed-point 16.16 size of the source bitmap */ \ + srcfixwidth = src.width() << 16; \ + srcfixheight = src.height() << 16; \ + \ + /* advance the starting coordinates to the top-left of the cliprect */ \ + startx += cliprect.min_x * incxx + cliprect.min_y * incyx; \ + starty += cliprect.min_x * incxy + cliprect.min_y * incyy; \ + \ + /* compute how many blocks of 4 pixels we have */ \ + numblocks = cliprect.width() / 4; \ + leftovers = cliprect.width() - 4 * numblocks; \ + \ + /* if incxy and incyx are 0, then we aren't rotating, just zooming */ \ + if (incxy == 0 && incyx == 0) \ + { \ + /* zoom-only, non-wraparound case */ \ + if (!wraparound) \ + { \ + /* iterate over pixels in Y */ \ + for (cury = cliprect.min_y; cury <= cliprect.max_y; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, cliprect.min_x); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, cliprect.min_x); \ + const PIXEL_TYPE *srcptr; \ + INT32 srcx = startx; \ + INT32 srcy = starty; \ + \ + starty += incyy; \ + \ + /* check srcy for the whole row at once */ \ + if ((UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16); \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + if ((UINT32)srcx < srcfixwidth) \ + PIXEL_OP(destptr[0], priptr[0], srcptr[srcx >> 16]); \ + srcx += incxx; \ + \ + if ((UINT32)srcx < srcfixwidth) \ + PIXEL_OP(destptr[1], priptr[1], srcptr[srcx >> 16]); \ + srcx += incxx; \ + \ + if ((UINT32)srcx < srcfixwidth) \ + PIXEL_OP(destptr[2], priptr[2], srcptr[srcx >> 16]); \ + srcx += incxx; \ + \ + if ((UINT32)srcx < srcfixwidth) \ + PIXEL_OP(destptr[3], priptr[3], srcptr[srcx >> 16]); \ + srcx += incxx; \ + \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + if ((UINT32)srcx < srcfixwidth) \ + PIXEL_OP(destptr[0], priptr[0], srcptr[srcx >> 16]); \ + srcx += incxx; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + } \ + \ + /* zoom-only, wraparound case */ \ + else \ + { \ + /* convert srcfixwidth/height into a mask and apply */ \ + srcfixwidth--; \ + srcfixheight--; \ + startx &= srcfixwidth; \ + starty &= srcfixheight; \ + \ + /* iterate over pixels in Y */ \ + for (cury = cliprect.min_y; cury <= cliprect.max_y; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, cliprect.min_x); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, cliprect.min_x); \ + const PIXEL_TYPE *srcptr = &src.pixt<PIXEL_TYPE>(starty >> 16); \ + INT32 srcx = startx; \ + \ + starty = (starty + incyy) & srcfixheight; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[srcx >> 16]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + \ + PIXEL_OP(destptr[1], priptr[1], srcptr[srcx >> 16]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + \ + PIXEL_OP(destptr[2], priptr[2], srcptr[srcx >> 16]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + \ + PIXEL_OP(destptr[3], priptr[3], srcptr[srcx >> 16]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[srcx >> 16]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + } \ + \ + /* full rotation case */ \ + else \ + { \ + /* full rotation, non-wraparound case */ \ + if (!wraparound) \ + { \ + /* iterate over pixels in Y */ \ + for (cury = cliprect.min_y; cury <= cliprect.max_y; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, cliprect.min_x); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, cliprect.min_x); \ + const PIXEL_TYPE *srcptr; \ + INT32 srcx = startx; \ + INT32 srcy = starty; \ + \ + startx += incyx; \ + starty += incyy; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + if ((UINT32)srcx < srcfixwidth && (UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + } \ + srcx += incxx; \ + srcy += incxy; \ + \ + if ((UINT32)srcx < srcfixwidth && (UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[0]); \ + } \ + srcx += incxx; \ + srcy += incxy; \ + \ + if ((UINT32)srcx < srcfixwidth && (UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[0]); \ + } \ + srcx += incxx; \ + srcy += incxy; \ + \ + if ((UINT32)srcx < srcfixwidth && (UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[0]); \ + } \ + srcx += incxx; \ + srcy += incxy; \ + \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + if ((UINT32)srcx < srcfixwidth && (UINT32)srcy < srcfixheight) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + } \ + srcx += incxx; \ + srcy += incxy; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + \ + /* zoom-only, wraparound case */ \ + else \ + { \ + /* convert srcfixwidth/height into a mask and apply */ \ + srcfixwidth--; \ + srcfixheight--; \ + startx &= srcfixwidth; \ + starty &= srcfixheight; \ + \ + /* iterate over pixels in Y */ \ + for (cury = cliprect.min_y; cury <= cliprect.max_y; cury++) \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, cury, cliprect.min_x); \ + PIXEL_TYPE *destptr = &dest.pixt<PIXEL_TYPE>(cury, cliprect.min_x); \ + const PIXEL_TYPE *srcptr; \ + INT32 srcx = startx; \ + INT32 srcy = starty; \ + \ + startx = (startx + incyx) & srcfixwidth; \ + starty = (starty + incyy) & srcfixheight; \ + \ + /* iterate over unrolled blocks of 4 */ \ + for (curx = 0; curx < numblocks; curx++) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + srcy = (srcy + incxy) & srcfixheight; \ + \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[0]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + srcy = (srcy + incxy) & srcfixheight; \ + \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[0]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + srcy = (srcy + incxy) & srcfixheight; \ + \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[0]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + srcy = (srcy + incxy) & srcfixheight; \ + \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + for (curx = 0; curx < leftovers; curx++) \ + { \ + srcptr = &src.pixt<PIXEL_TYPE>(srcy >> 16, srcx >> 16); \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcx = (srcx + incxx) & srcfixwidth; \ + srcy = (srcy + incxy) & srcfixheight; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ + } \ + } \ + g_profiler.stop(); \ +} while (0) + + + +/*************************************************************************** + BASIC DRAWSCANLINE CORE +***************************************************************************/ + +/* + Assumed input parameters or local variables: + + bitmap_t &bitmap - the bitmap to copy to + INT32 destx - the X coordinate to copy to + INT32 desty - the Y coordinate to copy to + INT32 length - the total number of pixels to copy + const UINTx *srcptr - pointer to memory containing the source pixels + bitmap_t &priority - the priority bitmap (even if PRIORITY_TYPE is NO_PRIORITY, at least needs a dummy) +*/ + +#define DRAWSCANLINE_CORE(PIXEL_TYPE, PIXEL_OP, PRIORITY_TYPE) \ +do { \ + assert(bitmap.valid()); \ + assert(destx >= 0); \ + assert(destx + length <= bitmap.width()); \ + assert(desty >= 0); \ + assert(desty < bitmap.height()); \ + assert(srcptr != NULL); \ + assert(!PRIORITY_VALID(PRIORITY_TYPE) || priority.valid()); \ + \ + { \ + PRIORITY_TYPE *priptr = PRIORITY_ADDR(priority, PRIORITY_TYPE, desty, destx); \ + PIXEL_TYPE *destptr = &bitmap.pixt<PIXEL_TYPE>(desty, destx); \ + \ + /* iterate over unrolled blocks of 4 */ \ + while (length >= 4) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + PIXEL_OP(destptr[1], priptr[1], srcptr[1]); \ + PIXEL_OP(destptr[2], priptr[2], srcptr[2]); \ + PIXEL_OP(destptr[3], priptr[3], srcptr[3]); \ + \ + length -= 4; \ + srcptr += 4; \ + destptr += 4; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 4); \ + } \ + \ + /* iterate over leftover pixels */ \ + while (length-- > 0) \ + { \ + PIXEL_OP(destptr[0], priptr[0], srcptr[0]); \ + srcptr++; \ + destptr++; \ + PRIORITY_ADVANCE(PRIORITY_TYPE, priptr, 1); \ + } \ + } \ +} while (0) + + + +/*************************************************************************** + BASIC EXTRACTSCANLINE CORE +***************************************************************************/ + +/* + Assumed input parameters: + + bitmap_t &bitmap - the bitmap to extract from + INT32 srcx - the X coordinate to begin extraction + INT32 srcy - the Y coordinate to begin extraction + INT32 length - the total number of pixels to extract + UINTx *destptr - pointer to memory to receive the extracted pixels +*/ + +#define EXTRACTSCANLINE_CORE(PIXEL_TYPE) \ +do { \ + assert(bitmap.valid()); \ + assert(srcx >= 0); \ + assert(srcx + length <= bitmap.width()); \ + assert(srcy >= 0); \ + assert(srcy < bitmap.height()); \ + assert(destptr != NULL); \ + \ + { \ + const PIXEL_TYPE *srcptr = &bitmap.pixt<PIXEL_TYPE>(srcy, srcx); \ + \ + /* iterate over unrolled blocks of 4 */ \ + while (length >= 4) \ + { \ + destptr[0] = srcptr[0]; \ + destptr[1] = srcptr[1]; \ + destptr[2] = srcptr[2]; \ + destptr[3] = srcptr[3]; \ + length -= 4; \ + srcptr += 4; \ + destptr += 4; \ + } \ + \ + /* iterate over leftover pixels */ \ + while (length > 0) \ + { \ + destptr[0] = srcptr[0]; \ + length--; \ + srcptr++; \ + destptr++; \ + } \ + } \ +} while (0) + + +#endif /* __DRAWGFXM_H__ */ |