mirror of https://github.com/stella-emu/stella.git
Blargg and phosphor threading by Thomas Jentzsch.
This commit is contained in:
Christian Speckner
Stephen Anthony
parent
7a9cde3e4d
commit
6d1a306b52
2
Makefile
2
Makefile
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@ -27,7 +27,7 @@
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srcdir ?= .
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DEFINES := -D_GLIBCXX_USE_CXX11_ABI=1
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LDFLAGS :=
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LDFLAGS := -pthread
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INCLUDES :=
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LIBS :=
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OBJS :=
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@ -15,6 +15,7 @@
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//============================================================================
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#include <thread>
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#include "AtariNTSC.hxx"
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// blitter related
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@ -34,6 +35,9 @@ void AtariNTSC::initialize(const Setup& setup, const uInt8* palette)
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{
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init(myImpl, setup);
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initializePalette(palette);
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myNumThreads = std::min(4u, std::thread::hardware_concurrency());
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myThreads = new std::thread[myNumThreads];
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@ -66,52 +70,189 @@ void AtariNTSC::initializePalette(const uInt8* palette)
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void AtariNTSC::render(const uInt8* atari_in, uInt32 in_width,
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uInt32 in_height, void* rgb_out, uInt32 out_pitch)
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void AtariNTSC::render(const uInt8* atari_in, const uInt32 in_width,
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const uInt32 in_height, void* rgb_out, const uInt32 out_pitch)
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{
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// Spawn the threads...
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for(uInt8 i = 0; i < myNumThreads; i++)
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myThreads[i] = std::thread([=] {
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renderThread(atari_in, in_width, in_height, myNumThreads, i, rgb_out, out_pitch);
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});
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// ...and make them join again
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for(uInt8 i = 0; i < myNumThreads; i++)
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myThreads[i].join();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void AtariNTSC::render(const uInt8* atari_in, const uInt32 in_width, const uInt32 in_height,
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void* rgb_out, const uInt32 out_pitch, uInt32* rgb_in)
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{
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// Spawn the threads...
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for(uInt8 i = 0; i < myNumThreads; i++)
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myThreads[i] = std::thread([=] {
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renderWithPhosphorThread(atari_in, in_width, in_height, myNumThreads, i,
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rgb_in, rgb_out, out_pitch);
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});
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// ...and make them join again
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for(uInt8 i = 0; i < myNumThreads; i++)
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myThreads[i].join();
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// Copy phosphor values into out buffer
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memcpy(rgb_out, rgb_in, in_height * out_pitch);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void AtariNTSC::renderThread(const uInt8* atari_in, const uInt32 in_width,
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const uInt32 in_height, const uInt32 numThreads, const uInt32 threadNum,
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void* rgb_out, const uInt32 out_pitch)
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{
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// Adapt parameters to thread number
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const uInt32 yStart = in_height * threadNum / numThreads;
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const uInt32 yEnd = in_height * (threadNum + 1) / numThreads;
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atari_in += in_width * yStart;
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rgb_out = static_cast<char*>(rgb_out) + out_pitch * yStart;
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uInt32 const chunk_count = (in_width - 1) / PIXEL_in_chunk;
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while ( in_height-- )
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for(uInt32 y = yStart; y < yEnd; ++y)
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{
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const uInt8* line_in = atari_in;
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ATARI_NTSC_BEGIN_ROW( NTSC_black, line_in[0] );
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ATARI_NTSC_BEGIN_ROW(NTSC_black, line_in[0]);
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uInt32* restrict line_out = static_cast<uInt32*>(rgb_out);
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++line_in;
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for ( uInt32 n = chunk_count; n; --n )
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for(uInt32 n = chunk_count; n; --n)
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{
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/* order of input and output pixels must not be altered */
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ATARI_NTSC_COLOR_IN( 0, line_in[0] );
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ATARI_NTSC_RGB_OUT_8888( 0, line_out[0] );
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ATARI_NTSC_RGB_OUT_8888( 1, line_out[1] );
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ATARI_NTSC_RGB_OUT_8888( 2, line_out[2] );
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ATARI_NTSC_RGB_OUT_8888( 3, line_out[3] );
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// order of input and output pixels must not be altered
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ATARI_NTSC_COLOR_IN(0, line_in[0]);
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ATARI_NTSC_RGB_OUT_8888(0, line_out[0]);
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ATARI_NTSC_RGB_OUT_8888(1, line_out[1]);
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ATARI_NTSC_RGB_OUT_8888(2, line_out[2]);
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ATARI_NTSC_RGB_OUT_8888(3, line_out[3]);
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ATARI_NTSC_COLOR_IN( 1, line_in[1] );
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ATARI_NTSC_RGB_OUT_8888( 4, line_out[4] );
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ATARI_NTSC_RGB_OUT_8888( 5, line_out[5] );
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ATARI_NTSC_RGB_OUT_8888( 6, line_out[6] );
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ATARI_NTSC_COLOR_IN(1, line_in[1]);
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ATARI_NTSC_RGB_OUT_8888(4, line_out[4]);
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ATARI_NTSC_RGB_OUT_8888(5, line_out[5]);
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ATARI_NTSC_RGB_OUT_8888(6, line_out[6]);
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line_in += 2;
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line_out += 7;
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}
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/* finish final pixels */
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ATARI_NTSC_COLOR_IN( 0, NTSC_black );
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ATARI_NTSC_RGB_OUT_8888( 0, line_out[0] );
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ATARI_NTSC_RGB_OUT_8888( 1, line_out[1] );
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ATARI_NTSC_RGB_OUT_8888( 2, line_out[2] );
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ATARI_NTSC_RGB_OUT_8888( 3, line_out[3] );
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// finish final pixels
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ATARI_NTSC_COLOR_IN(0, NTSC_black);
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ATARI_NTSC_RGB_OUT_8888(0, line_out[0]);
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ATARI_NTSC_RGB_OUT_8888(1, line_out[1]);
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ATARI_NTSC_RGB_OUT_8888(2, line_out[2]);
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ATARI_NTSC_RGB_OUT_8888(3, line_out[3]);
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ATARI_NTSC_COLOR_IN( 1, NTSC_black );
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ATARI_NTSC_RGB_OUT_8888( 4, line_out[4] );
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ATARI_NTSC_RGB_OUT_8888( 5, line_out[5] );
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ATARI_NTSC_RGB_OUT_8888( 6, line_out[6] );
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ATARI_NTSC_COLOR_IN(1, NTSC_black);
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ATARI_NTSC_RGB_OUT_8888(4, line_out[4]);
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ATARI_NTSC_RGB_OUT_8888(5, line_out[5]);
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ATARI_NTSC_RGB_OUT_8888(6, line_out[6]);
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atari_in += in_width;
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rgb_out = static_cast<char*>(rgb_out) + out_pitch;
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void AtariNTSC::renderWithPhosphorThread(const uInt8* atari_in, const uInt32 in_width,
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const uInt32 in_height, const uInt32 numThreads, const uInt32 threadNum,
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uInt32* rgb_in, void* rgb_out, const uInt32 out_pitch)
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{
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// Adapt parameters to thread number
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const uInt32 yStart = in_height * threadNum / numThreads;
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const uInt32 yEnd = in_height * (threadNum + 1) / numThreads;
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uInt32 bufofs = AtariNTSC::outWidth(in_width) * yStart;
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uInt32* out = static_cast<uInt32*>(rgb_out);
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atari_in += in_width * yStart;
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rgb_out = static_cast<char*>(rgb_out) + out_pitch * yStart;
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uInt32 const chunk_count = (in_width - 1) / PIXEL_in_chunk;
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for(uInt32 y = yStart; y < yEnd; ++y)
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{
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const uInt8* line_in = atari_in;
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ATARI_NTSC_BEGIN_ROW(NTSC_black, line_in[0]);
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uInt32* restrict line_out = static_cast<uInt32*>(rgb_out);
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++line_in;
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for(uInt32 n = chunk_count; n; --n)
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{
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// order of input and output pixels must not be altered
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ATARI_NTSC_COLOR_IN(0, line_in[0]);
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ATARI_NTSC_RGB_OUT_8888(0, line_out[0]);
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ATARI_NTSC_RGB_OUT_8888(1, line_out[1]);
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ATARI_NTSC_RGB_OUT_8888(2, line_out[2]);
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ATARI_NTSC_RGB_OUT_8888(3, line_out[3]);
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ATARI_NTSC_COLOR_IN(1, line_in[1]);
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ATARI_NTSC_RGB_OUT_8888(4, line_out[4]);
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ATARI_NTSC_RGB_OUT_8888(5, line_out[5]);
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ATARI_NTSC_RGB_OUT_8888(6, line_out[6]);
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line_in += 2;
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line_out += 7;
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}
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// finish final pixels
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ATARI_NTSC_COLOR_IN(0, NTSC_black);
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ATARI_NTSC_RGB_OUT_8888(0, line_out[0]);
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ATARI_NTSC_RGB_OUT_8888(1, line_out[1]);
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ATARI_NTSC_RGB_OUT_8888(2, line_out[2]);
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ATARI_NTSC_RGB_OUT_8888(3, line_out[3]);
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ATARI_NTSC_COLOR_IN(1, NTSC_black);
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ATARI_NTSC_RGB_OUT_8888(4, line_out[4]);
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ATARI_NTSC_RGB_OUT_8888(5, line_out[5]);
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ATARI_NTSC_RGB_OUT_8888(6, line_out[6]);
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// Do phosphor mode (blend the resulting frames)
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// Note: The codes assumes that AtariNTSC::outWidth(kTIAW) == outPitch == 560
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for (uInt32 x = AtariNTSC::outWidth(in_width) / 8; x; --x)
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{
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// Store back into displayed frame buffer (for next frame)
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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rgb_in[bufofs] = getRGBPhosphor(out[bufofs], rgb_in[bufofs]);
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bufofs++;
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}
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atari_in += in_width;
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rgb_out = static_cast<char*>(rgb_out) + out_pitch;
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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inline uInt32 AtariNTSC::getRGBPhosphor(const uInt32 c, const uInt32 p) const
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{
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#define TO_RGB(color, red, green, blue) \
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const uInt8 red = color >> 16; const uInt8 green = color >> 8; const uInt8 blue = color;
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TO_RGB(c, rc, gc, bc);
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TO_RGB(p, rp, gp, bp);
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// Mix current calculated frame with previous displayed frame
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const uInt8 rn = myPhosphorPalette[rc][rp];
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const uInt8 gn = myPhosphorPalette[gc][gp];
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const uInt8 bn = myPhosphorPalette[bc][bp];
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return (rn << 16) | (gn << 8) | bn;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void AtariNTSC::init(init_t& impl, const Setup& setup)
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{
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@ -80,12 +80,19 @@ class AtariNTSC
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void initialize(const Setup& setup, const uInt8* palette);
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void initializePalette(const uInt8* palette);
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// Set phosphor palette, for use in Blargg + phosphor mode
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void setPhosphorPalette(uInt8 palette[256][256]) {
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memcpy(myPhosphorPalette, palette, 256 * 256);
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}
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// Filters one or more rows of pixels. Input pixels are 8-bit Atari
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// palette colors.
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// In_row_width is the number of pixels to get to the next input row.
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// Out_pitch is the number of *bytes* to get to the next output row.
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void render(const uInt8* atari_in, uInt32 in_width, uInt32 in_height,
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void* rgb_out, uInt32 out_pitch);
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void render(const uInt8* atari_in, const uInt32 in_width, const uInt32 in_height,
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void* rgb_out, const uInt32 out_pitch);
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void render(const uInt8* atari_in, const uInt32 in_width, const uInt32 in_height,
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void* rgb_out, const uInt32 out_pitch, uInt32* rgb_in);
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// Number of input pixels that will fit within given output width.
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// Might be rounded down slightly; use outWidth() on result to find
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@ -101,6 +108,23 @@ class AtariNTSC
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return ((((in_width) - 1) / PIXEL_in_chunk + 1)* PIXEL_out_chunk);
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}
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private:
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// Threaded rendering
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void renderThread(const uInt8* atari_in, const uInt32 in_width,
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const uInt32 in_height, const uInt32 numThreads, const uInt32 threadNum, void* rgb_out, const uInt32 out_pitch);
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void renderWithPhosphorThread(const uInt8* atari_in, const uInt32 in_width,
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const uInt32 in_height, const uInt32 numThreads, const uInt32 threadNum, uInt32* rgb_in, void* rgb_out, const uInt32 out_pitch);
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/**
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Used to calculate an averaged color for the 'phosphor' effect.
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@param c RGB Color 1 (current frame)
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@param p RGB Color 2 (previous frame)
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@return Averaged value of the two RGB colors
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*/
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uInt32 getRGBPhosphor(const uInt32 c, const uInt32 cp) const;
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private:
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enum {
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PIXEL_in_chunk = 2, // number of input pixels read per chunk
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@ -138,6 +162,12 @@ class AtariNTSC
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#define LUMA_CUTOFF 0.20
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uInt32 myColorTable[palette_size][entry_size];
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uInt8 myPhosphorPalette[256][256];
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// Rendering threads
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std::thread* myThreads;
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// Number of rendering threads
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uInt8 myNumThreads;
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struct init_t
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{
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@ -72,6 +72,10 @@ class NTSCFilter
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myNTSC.initializePalette(myTIAPalette);
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}
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inline void setPhosphorPalette(uInt8 palette[256][256]) {
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myNTSC.setPhosphorPalette(palette);
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}
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// The following are meant to be used strictly for toggling from the GUI
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string setPreset(Preset preset);
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@ -110,6 +114,11 @@ class NTSCFilter
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{
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myNTSC.render(src_buf, src_width, src_height, dest_buf, dest_pitch);
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}
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inline void render(uInt8* src_buf, uInt32 src_width, uInt32 src_height,
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uInt32* dest_buf, uInt32 dest_pitch, uInt32* prev_buf)
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{
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myNTSC.render(src_buf, src_width, src_height, dest_buf, dest_pitch, prev_buf);
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}
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private:
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// Convert from atari_ntsc_setup_t values to equivalent adjustables
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@ -135,6 +144,7 @@ class NTSCFilter
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// and 128 black&white colours (PAL colour loss)
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// Each colour is represented by 3 bytes, in R,G,B order
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uInt8 myTIAPalette[AtariNTSC::palette_size * 3];
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uInt8* myPhosphorPalette;
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struct AdjustableTag {
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const char* const type;
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@ -16,6 +16,7 @@
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//============================================================================
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#include <cmath>
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#include <algorithm>
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#include "FrameBuffer.hxx"
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#include "Settings.hxx"
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@ -241,11 +242,13 @@ void TIASurface::enablePhosphor(bool enable, int blend)
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for(Int16 c = 255; c >= 0; c--)
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for(Int16 p = 255; p >= 0; p--)
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myPhosphorPalette[c][p] = getPhosphor(c, p);
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myNTSCFilter.setPhosphorPalette(myPhosphorPalette);
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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inline uInt32 TIASurface::getRGBPhosphor(uInt32 c, uInt32 p) const
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inline uInt32 TIASurface::getRGBPhosphor(const uInt32 c, const uInt32 p) const
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{
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#define TO_RGB(color, red, green, blue) \
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const uInt8 red = color >> 16; const uInt8 green = color >> 8; const uInt8 blue = color;
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@ -325,16 +328,17 @@ void TIASurface::render()
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{
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case Filter::Normal:
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{
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uInt8* in = myTIA->frameBuffer();
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uInt8* tiaIn = myTIA->frameBuffer();
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uInt32 bufofsY = 0, screenofsY = 0, pos = 0;
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uInt32 bufofs = 0, screenofsY = 0, pos;
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for(uInt32 y = 0; y < height; ++y)
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{
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pos = screenofsY;
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for(uInt32 x = 0; x < width; ++x)
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out[pos++] = myPalette[in[bufofsY + x]];
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bufofsY += width;
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for (uInt32 x = width / 2; x; --x)
|
||||
{
|
||||
out[pos++] = myPalette[tiaIn[bufofs++]];
|
||||
out[pos++] = myPalette[tiaIn[bufofs++]];
|
||||
}
|
||||
screenofsY += outPitch;
|
||||
}
|
||||
break;
|
||||
|
|
@ -345,21 +349,18 @@ void TIASurface::render()
|
|||
uInt8* tiaIn = myTIA->frameBuffer();
|
||||
uInt32* rgbIn = myRGBFramebuffer;
|
||||
|
||||
uInt32 bufofsY = 0, screenofsY = 0, pos = 0;
|
||||
for(uInt32 y = 0; y < height; ++y)
|
||||
uInt32 bufofs = 0, screenofsY = 0, pos;
|
||||
for(uInt32 y = height; y ; --y)
|
||||
{
|
||||
pos = screenofsY;
|
||||
for(uInt32 x = 0; x < width; ++x)
|
||||
for(uInt32 x = width / 2; x ; --x)
|
||||
{
|
||||
const uInt32 bufofs = bufofsY + x;
|
||||
const uInt8 c = tiaIn[bufofs];
|
||||
const uInt32 retVal = getRGBPhosphor(myPalette[c], rgbIn[bufofs]);
|
||||
|
||||
// Store back into displayed frame buffer (for next frame)
|
||||
rgbIn[bufofs] = retVal;
|
||||
out[pos++] = retVal;
|
||||
rgbIn[bufofs] = out[pos++] = getRGBPhosphor(myPalette[tiaIn[bufofs]], rgbIn[bufofs]);
|
||||
bufofs++;
|
||||
rgbIn[bufofs] = out[pos++] = getRGBPhosphor(myPalette[tiaIn[bufofs]], rgbIn[bufofs]);
|
||||
bufofs++;
|
||||
}
|
||||
bufofsY += width;
|
||||
screenofsY += outPitch;
|
||||
}
|
||||
break;
|
||||
|
|
@ -373,28 +374,7 @@ void TIASurface::render()
|
|||
|
||||
case Filter::BlarggPhosphor:
|
||||
{
|
||||
// First do Blargg filtering
|
||||
myNTSCFilter.render(myTIA->frameBuffer(), width, height, out, outPitch << 2);
|
||||
|
||||
// Then do phosphor mode (blend the resulting frames)
|
||||
uInt32* rgbIn = myRGBFramebuffer;
|
||||
|
||||
uInt32 bufofsY = 0, screenofsY = 0, pos = 0;
|
||||
for(uInt32 y = 0; y < height; ++y)
|
||||
{
|
||||
pos = screenofsY;
|
||||
for(uInt32 x = 0; x < AtariNTSC::outWidth(kTIAW); ++x)
|
||||
{
|
||||
const uInt32 bufofs = bufofsY + x;
|
||||
const uInt32 retVal = getRGBPhosphor(out[bufofs], rgbIn[bufofs]);
|
||||
|
||||
// Store back into displayed frame buffer (for next frame)
|
||||
rgbIn[bufofs] = retVal;
|
||||
out[pos++] = retVal;
|
||||
}
|
||||
bufofsY += AtariNTSC::outWidth(kTIAW);
|
||||
screenofsY += outPitch;
|
||||
}
|
||||
myNTSCFilter.render(myTIA->frameBuffer(), width, height, out, outPitch << 2, myRGBFramebuffer);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -25,6 +25,8 @@ class FrameBuffer;
|
|||
class FBSurface;
|
||||
class VideoMode;
|
||||
|
||||
#include <thread>
|
||||
|
||||
#include "FrameManager.hxx"
|
||||
#include "Rect.hxx"
|
||||
#include "NTSCFilter.hxx"
|
||||
|
|
@ -134,7 +136,7 @@ class TIASurface
|
|||
|
||||
@return Averaged value of the two RGB colors
|
||||
*/
|
||||
uInt32 getRGBPhosphor(uInt32 c, uInt32 cp) const;
|
||||
uInt32 getRGBPhosphor(const uInt32 c, const uInt32 cp) const;
|
||||
|
||||
/**
|
||||
Enable/disable/query NTSC filtering effects.
|
||||
|
|
|
|||
Loading…
Reference in New Issue