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https://github.com/libretro/scummvm.git
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SCI: Turned the crossblit code into a template
svn-id: r38907
This commit is contained in:
Max Horn
parent
e140188541
commit
900dc048f4
@ -23,40 +23,20 @@
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*
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*/
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/* This file isn't used directly; rather, it's included by a different file. */
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/* Note that memcpy() is assumed to be an inlineable built-in. If it isn't,
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** performance will suck... badly.
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*/
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#include "common/scummsys.h"
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namespace Sci {
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/* Config parameters:
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** FUNCTION_NAME: Name of the blitter function
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** USE_PRIORITY: Whether to care about the priority buffer
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** BYTESPP: Bytes per pixel
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*/
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#include "common/scummsys.h"
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/* set optimisations for Win32: */
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/* g on: enable global optimizations */
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/* t on: use fast code */
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/* y on: suppress creation of frame pointers on stack */
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/* s off: disable minimize size code */
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#ifdef WIN32
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# include <memory.h>
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# ifndef SATISFY_PURIFY
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# pragma optimize( "s", off )
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# pragma optimize( "gty", on )
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# pragma intrinsic( memcpy, memset )
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# endif
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#endif
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namespace Sci {
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static void FUNCTION_NAME(byte *dest, byte *src, int bytes_per_dest_line, int bytes_per_src_line,
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template <int BYTESPP, bool USE_PRIORITY, bool REVERSE_ALPHA>
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void _gfx_crossblit(byte *dest, byte *src, int bytes_per_dest_line, int bytes_per_src_line,
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int xl, int yl, byte *alpha, int bytes_per_alpha_line, int bytes_per_alpha_pixel,
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unsigned int alpha_test_mask, unsigned int alpha_min
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#ifdef USE_PRIORITY
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, byte *priority_buffer, int bytes_per_priority_line, int bytes_per_priority_pixel, int priority
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#endif /* USE_PRIORITY */
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unsigned int alpha_test_mask, unsigned int alpha_min,
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byte *priority_buffer, int bytes_per_priority_line, int bytes_per_priority_pixel, int priority
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) {
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int x, y;
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int alpha_end = xl * bytes_per_alpha_pixel;
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@ -64,47 +44,33 @@ static void FUNCTION_NAME(byte *dest, byte *src, int bytes_per_dest_line, int by
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for (y = 0; y < yl; y++) {
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int pixel_offset = 0;
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int alpha_offset = 0;
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#ifdef USE_PRIORITY
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int priority_offset = 0;
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#endif /* USE_PRIORITY */
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for (x = 0; x < alpha_end; x += bytes_per_alpha_pixel) {
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if ((alpha_test_mask & alpha[x])
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#ifdef REVERSE_ALPHA
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>=
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#else
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<
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#endif
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alpha_min)
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#ifdef USE_PRIORITY
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if (priority_buffer[priority_offset] <= priority) {
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priority_buffer[priority_offset] = priority;
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#endif /* USE_PRIORITY */
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if (((alpha_test_mask & alpha[x]) < alpha_min) ^ REVERSE_ALPHA) {
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if (USE_PRIORITY) {
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if (priority_buffer[priority_offset] <= priority) {
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priority_buffer[priority_offset] = priority;
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memcpy(dest + pixel_offset, src + pixel_offset, BYTESPP);
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}
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} else {
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memcpy(dest + pixel_offset, src + pixel_offset, BYTESPP);
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#ifdef USE_PRIORITY
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}
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#endif /* USE_PRIORITY */
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}
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pixel_offset += BYTESPP;
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alpha_offset += bytes_per_alpha_pixel;
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#ifdef USE_PRIORITY
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priority_offset += bytes_per_priority_pixel;
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#endif /* USE_PRIORITY */
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if (USE_PRIORITY)
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priority_offset += bytes_per_priority_pixel;
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}
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dest += bytes_per_dest_line;
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src += bytes_per_src_line;
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alpha += bytes_per_alpha_line;
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#ifdef USE_PRIORITY
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priority_buffer += bytes_per_priority_line;
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#endif /* USE_PRIORITY */
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if (USE_PRIORITY)
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priority_buffer += bytes_per_priority_line;
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}
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}
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} // End of namespace Sci
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/* reset to original optimisations for Win32: */
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/* (does not reset intrinsics) */
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#ifdef WIN32
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# pragma optimize( "", on )
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#endif
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@ -30,6 +30,7 @@
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#include "sci/gfx/gfx_system.h"
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#include "sci/gfx/gfx_tools.h"
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#include "sci/gfx/line.h"
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#include "sci/gfx/crossblit.h"
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namespace Sci {
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@ -84,153 +85,32 @@ void gfx_draw_box_pixmap_i(gfx_pixmap_t *pxm, rect_t box, int color) {
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gfx_draw_box_buffer(pxm->index_data, pxm->index_xl, box, color);
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}
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} // End of namespace Sci
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// Import various crossblit functions
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#undef USE_PRIORITY
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#undef FUNCTION_NAME
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#undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_8
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# define BYTESPP 1
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_16
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# define BYTESPP 2
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_24
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# define BYTESPP 3
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_32
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# define BYTESPP 4
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# include "gfx_crossblit.cpp"
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#define USE_PRIORITY
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_8_P
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# define BYTESPP 1
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_16_P
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# define BYTESPP 2
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_24_P
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# define BYTESPP 3
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_32_P
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# define BYTESPP 4
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# include "gfx_crossblit.cpp"
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#undef USE_PRIORITY
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#undef FUNCTION_NAME
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#undef BYTESPP
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// Reverse alpha versions
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#undef USE_PRIORITY
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#undef FUNCTION_NAME
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#undef BYTESPP
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#undef REVERSE_ALPHA
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#define REVERSE_ALPHA
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# define FUNCTION_NAME _gfx_crossblit_8_RA
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# define BYTESPP 1
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_16_RA
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# define BYTESPP 2
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_24_RA
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# define BYTESPP 3
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_32_RA
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# define BYTESPP 4
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# include "gfx_crossblit.cpp"
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#define USE_PRIORITY
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_8_P_RA
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# define BYTESPP 1
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_16_P_RA
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# define BYTESPP 2
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_24_P_RA
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# define BYTESPP 3
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# include "gfx_crossblit.cpp"
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# undef FUNCTION_NAME
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# undef BYTESPP
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# define FUNCTION_NAME _gfx_crossblit_32_P_RA
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# define BYTESPP 4
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# include "gfx_crossblit.cpp"
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#undef USE_PRIORITY
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#undef FUNCTION_NAME
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#undef BYTESPP
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#undef REVERSE_ALPHA
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namespace Sci {
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static void (*crossblit_fns[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int) = { NULL,
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_gfx_crossblit_8,
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_gfx_crossblit_16,
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_gfx_crossblit_24,
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_gfx_crossblit_32
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static void (*crossblit_fns[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int, byte *, int, int, int) = { NULL,
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_gfx_crossblit<1, false, false>,
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_gfx_crossblit<2, false, false>,
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_gfx_crossblit<3, false, false>,
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_gfx_crossblit<4, false, false>
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};
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static void (*crossblit_fns_P[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int, byte *, int, int, int) = { NULL,
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_gfx_crossblit_8_P,
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_gfx_crossblit_16_P,
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_gfx_crossblit_24_P,
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_gfx_crossblit_32_P
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_gfx_crossblit<1, true, false>,
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_gfx_crossblit<2, true, false>,
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_gfx_crossblit<3, true, false>,
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_gfx_crossblit<4, true, false>
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};
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static void (*crossblit_fns_RA[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int) = { NULL,
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_gfx_crossblit_8_RA,
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_gfx_crossblit_16_RA,
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_gfx_crossblit_24_RA,
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_gfx_crossblit_32_RA
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static void (*crossblit_fns_RA[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int, byte *, int, int, int) = { NULL,
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_gfx_crossblit<1, false, true>,
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_gfx_crossblit<2, false, true>,
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_gfx_crossblit<3, false, true>,
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_gfx_crossblit<4, false, true>
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};
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static void (*crossblit_fns_P_RA[5])(byte *, byte *, int, int, int, int, byte *, int, int, unsigned int, unsigned int, byte *, int, int, int) = { NULL,
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_gfx_crossblit_8_P_RA,
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_gfx_crossblit_16_P_RA,
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_gfx_crossblit_24_P_RA,
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_gfx_crossblit_32_P_RA
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_gfx_crossblit<1, true, true>,
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_gfx_crossblit<2, true, true>,
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_gfx_crossblit<3, true, true>,
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_gfx_crossblit<4, true, true>
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};
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void _gfx_crossblit_simple(byte *dest, byte *src, int dest_line_width, int src_line_width, int xl, int yl, int bpp) {
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@ -361,7 +241,8 @@ int gfx_crossblit_pixmap(gfx_mode_t *mode, gfx_pixmap_t *pxm, int priority, rect
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if (priority == GFX_NO_PRIORITY) {
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if (bpp > 0 && bpp < 5)
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((revalpha) ? crossblit_fns_RA : crossblit_fns)[bpp](dest, src, dest_line_width, pxm->xl * bpp,
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xl, yl, alpha, bytes_per_alpha_line, bytes_per_alpha_pixel, alpha_mask, alpha_min);
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xl, yl, alpha, bytes_per_alpha_line, bytes_per_alpha_pixel, alpha_mask, alpha_min,
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0, 0, 0, 0);
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else {
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GFXERROR("Invalid mode->bytespp: %d\n", mode->bytespp);
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return GFX_ERROR;
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@ -369,8 +250,8 @@ int gfx_crossblit_pixmap(gfx_mode_t *mode, gfx_pixmap_t *pxm, int priority, rect
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} else { // priority
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if (bpp > 0 && bpp < 5)
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((revalpha) ? crossblit_fns_P_RA : crossblit_fns_P)[bpp](dest, src, dest_line_width, pxm->xl * bpp,
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xl, yl, alpha, bytes_per_alpha_line, bytes_per_alpha_pixel,
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alpha_mask, alpha_min, priority_pos, priority_line_width, priority_skip, priority);
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xl, yl, alpha, bytes_per_alpha_line, bytes_per_alpha_pixel, alpha_mask, alpha_min,
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priority_pos, priority_line_width, priority_skip, priority);
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else {
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GFXERROR("Invalid mode->bytespp: %d\n", mode->bytespp);
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return GFX_ERROR;
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