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libglitter_create_render_context.c
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libglitter_create_render_context.c
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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
LIBGLITTER_RENDER_CONTEXT *
libglitter_create_render_context(size_t noutputs, size_t rowsize, size_t widthmul, size_t heightmul,
const uint8_t *cellmap, const uint8_t *ncellvalues)
{
struct libglitter_render_context *this;
size_t i;
this = calloc(1, sizeof(*this));
if (!this)
return NULL;
this->cellmap = cellmap;
this->ncellvalues = ncellvalues;
this->noutputs = noutputs;
this->widthmul = widthmul;
this->heightmul = heightmul;
this->cellweights_double = calloc(noutputs, sizeof(*this->cellweights_double));
if (!this->cellweights_double)
goto fail;
this->cellweights_float = calloc(noutputs, sizeof(*this->cellweights_float));
if (!this->cellweights_float)
goto fail;
this->render_method =
(noutputs == 3 && widthmul == 3 && heightmul == 1) ? RENDER_METHOD_VSTRIPS :
(noutputs == 3 && widthmul == 1 && heightmul == 3) ? RENDER_METHOD_HSTRIPS :
(noutputs == 3 && ncellvalues[0] <= 2 && ncellvalues[1] <= 2 && ncellvalues[2] <= 2) ? RENDER_METHOD_SIMPLE :
RENDER_METHOD_GENERIC;
for (i = 0; i < noutputs; i++) {
this->cellweights_double[i] = 1 / (double)ncellvalues[i];
this->cellweights_float[i] = 1 / (float)ncellvalues[i];
}
libglitter_update_render_context(this, rowsize);
return this;
fail:
free(this->cellweights_double);
free(this);
return NULL;
}
#else
int
main(void)
{
#define POS(Y, X) ((Y) * ctx->rowsize + (X))
LIBGLITTER_RENDER_CONTEXT *ctx;
uint8_t cellmap[6];
uint8_t ncellvalues[4];
uint8_t a, b, c, i;
ncellvalues[0] = 2;
ncellvalues[1] = 16;
ncellvalues[2] = 4;
ncellvalues[3] = 8;
cellmap[0] = 0, cellmap[1] = 1, cellmap[2] = 2;
cellmap[3] = 1, cellmap[4] = 2, cellmap[5] = 0;
ctx = libglitter_create_render_context(4, 10, 3, 2, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 2);
ASSERT(ctx->ncellvalues[1] == 16);
ASSERT(ctx->ncellvalues[2] == 4);
ASSERT(ctx->ncellvalues[3] == 8);
ASSERT(ctx->noutputs == 4);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / 2);
ASSERT(ctx->cellweights_double[1] == (double)1 / 16);
ASSERT(ctx->cellweights_double[2] == (double)1 / 4);
ASSERT(ctx->cellweights_double[3] == (double)1 / 8);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / 2);
ASSERT(ctx->cellweights_float[1] == (float)1 / 16);
ASSERT(ctx->cellweights_float[2] == (float)1 / 4);
ASSERT(ctx->cellweights_float[3] == (float)1 / 8);
ASSERT(ctx->render_method == RENDER_METHOD_GENERIC);
ASSERT(ctx->rowsize == 10);
libglitter_update_render_context(ctx, 20);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 2);
ASSERT(ctx->ncellvalues[1] == 16);
ASSERT(ctx->ncellvalues[2] == 4);
ASSERT(ctx->ncellvalues[3] == 8);
ASSERT(ctx->noutputs == 4);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / 2);
ASSERT(ctx->cellweights_double[1] == (double)1 / 16);
ASSERT(ctx->cellweights_double[2] == (double)1 / 4);
ASSERT(ctx->cellweights_double[3] == (double)1 / 8);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / 2);
ASSERT(ctx->cellweights_float[1] == (float)1 / 16);
ASSERT(ctx->cellweights_float[2] == (float)1 / 4);
ASSERT(ctx->cellweights_float[3] == (float)1 / 8);
ASSERT(ctx->render_method == RENDER_METHOD_GENERIC);
ASSERT(ctx->rowsize == 20);
libglitter_free_render_context(ctx);
ncellvalues[0] = 1;
ncellvalues[1] = 1;
ncellvalues[2] = 1;
cellmap[0] = 1, cellmap[1] = 0, cellmap[2] = 2;
ctx = libglitter_create_render_context(3, 6, 3, 1, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 0);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 1);
ASSERT(ctx->ncellvalues[1] == 1);
ASSERT(ctx->ncellvalues[2] == 1);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 1);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == 1);
ASSERT(ctx->cellweights_double[1] == 1);
ASSERT(ctx->cellweights_double[2] == 1);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == 1);
ASSERT(ctx->cellweights_float[1] == 1);
ASSERT(ctx->cellweights_float[2] == 1);
ASSERT(ctx->render_method == RENDER_METHOD_VSTRIPS);
ASSERT(ctx->rowsize == 6);
libglitter_update_render_context(ctx, 15);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 0);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 1);
ASSERT(ctx->ncellvalues[1] == 1);
ASSERT(ctx->ncellvalues[2] == 1);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 1);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == 1);
ASSERT(ctx->cellweights_double[1] == 1);
ASSERT(ctx->cellweights_double[2] == 1);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == 1);
ASSERT(ctx->cellweights_float[1] == 1);
ASSERT(ctx->cellweights_float[2] == 1);
ASSERT(ctx->render_method == RENDER_METHOD_VSTRIPS);
ASSERT(ctx->rowsize == 15);
libglitter_free_render_context(ctx);
ncellvalues[0] = 1;
ncellvalues[1] = 1;
ncellvalues[2] = 1;
cellmap[0] = 1, cellmap[1] = 0, cellmap[2] = 2;
ctx = libglitter_create_render_context(3, 6, 1, 3, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 0);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 1);
ASSERT(ctx->ncellvalues[1] == 1);
ASSERT(ctx->ncellvalues[2] == 1);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 1);
ASSERT(ctx->heightmul == 3);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == 1);
ASSERT(ctx->cellweights_double[1] == 1);
ASSERT(ctx->cellweights_double[2] == 1);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == 1);
ASSERT(ctx->cellweights_float[1] == 1);
ASSERT(ctx->cellweights_float[2] == 1);
ASSERT(ctx->render_method == RENDER_METHOD_HSTRIPS);
ASSERT(ctx->rowsize == 6);
libglitter_update_render_context(ctx, 15);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 0);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == 1);
ASSERT(ctx->ncellvalues[1] == 1);
ASSERT(ctx->ncellvalues[2] == 1);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 1);
ASSERT(ctx->heightmul == 3);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == 1);
ASSERT(ctx->cellweights_double[1] == 1);
ASSERT(ctx->cellweights_double[2] == 1);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == 1);
ASSERT(ctx->cellweights_float[1] == 1);
ASSERT(ctx->cellweights_float[2] == 1);
ASSERT(ctx->render_method == RENDER_METHOD_HSTRIPS);
ASSERT(ctx->rowsize == 15);
libglitter_free_render_context(ctx);
for (i = 1; i < 8; i++) {
ncellvalues[0] = a = 2 + !!(i & 1);
ncellvalues[1] = b = 2 + !!(i & 2);
ncellvalues[2] = c = 2 + !!(i & 4);
cellmap[0] = 0, cellmap[1] = 1, cellmap[2] = 2;
cellmap[3] = 1, cellmap[4] = 2, cellmap[5] = 0;
ctx = libglitter_create_render_context(3, 8, 3, 2, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_GENERIC);
ASSERT(ctx->rowsize == 8);
libglitter_update_render_context(ctx, 30);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_GENERIC);
ASSERT(ctx->rowsize == 30);
libglitter_free_render_context(ctx);
}
for (i = 0; i < 8; i++) {
ncellvalues[0] = a = 1 + !!(i & 1);
ncellvalues[1] = b = 1 + !!(i & 2);
ncellvalues[2] = c = 1 + !!(i & 4);
cellmap[0] = 0, cellmap[1] = 1, cellmap[2] = 2;
cellmap[3] = 1, cellmap[4] = 2, cellmap[5] = 0;
ctx = libglitter_create_render_context(3, 8, 3, 2, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_SIMPLE);
ASSERT(ctx->rowsize == 8);
ASSERT(ctx->cells[0][0] == POS(0, 0) || ctx->cells[0][0] == POS(1, 2));
ASSERT(ctx->cells[0][1] == POS(1, 2) || ctx->cells[0][1] == POS(0, 0));
ASSERT(ctx->cells[1][0] == POS(0, 1) || ctx->cells[1][0] == POS(1, 0));
ASSERT(ctx->cells[1][1] == POS(1, 0) || ctx->cells[1][1] == POS(0, 1));
ASSERT(ctx->cells[2][0] == POS(0, 2) || ctx->cells[2][0] == POS(1, 1));
ASSERT(ctx->cells[2][1] == POS(1, 1) || ctx->cells[2][1] == POS(0, 2));
ASSERT(ctx->cells[0][0] != ctx->cells[0][1]);
ASSERT(ctx->cells[1][0] != ctx->cells[1][1]);
ASSERT(ctx->cells[2][0] != ctx->cells[2][1]);
libglitter_update_render_context(ctx, 30);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 0);
ASSERT(ctx->cellmap[1] == 1);
ASSERT(ctx->cellmap[2] == 2);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->cellmap[4] == 2);
ASSERT(ctx->cellmap[5] == 0);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 3);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_SIMPLE);
ASSERT(ctx->rowsize == 30);
ASSERT(ctx->cells[0][0] == POS(0, 0) || ctx->cells[0][0] == POS(1, 2));
ASSERT(ctx->cells[0][1] == POS(1, 2) || ctx->cells[0][1] == POS(0, 0));
ASSERT(ctx->cells[1][0] == POS(0, 1) || ctx->cells[1][0] == POS(1, 0));
ASSERT(ctx->cells[1][1] == POS(1, 0) || ctx->cells[1][1] == POS(0, 1));
ASSERT(ctx->cells[2][0] == POS(0, 2) || ctx->cells[2][0] == POS(1, 1));
ASSERT(ctx->cells[2][1] == POS(1, 1) || ctx->cells[2][1] == POS(0, 2));
ASSERT(ctx->cells[0][0] != ctx->cells[0][1]);
ASSERT(ctx->cells[1][0] != ctx->cells[1][1]);
ASSERT(ctx->cells[2][0] != ctx->cells[2][1]);
libglitter_free_render_context(ctx);
}
ncellvalues[0] = a = 1;
ncellvalues[1] = b = 2;
ncellvalues[2] = c = 1;
cellmap[0] = 1, cellmap[1] = 2;
cellmap[2] = 0, cellmap[3] = 1;
ctx = libglitter_create_render_context(3, 8, 2, 2, cellmap, ncellvalues);
ASSERT(ctx);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 2);
ASSERT(ctx->cellmap[2] == 0);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 2);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_SIMPLE);
ASSERT(ctx->rowsize == 8);
ASSERT(ctx->cells[0][0] == POS(1, 0));
ASSERT(ctx->cells[1][0] == POS(0, 0) || ctx->cells[1][0] == POS(1, 1));
ASSERT(ctx->cells[1][1] == POS(1, 1) || ctx->cells[1][1] == POS(0, 0));
ASSERT(ctx->cells[2][0] == POS(0, 1));
ASSERT(ctx->cells[0][0] == ctx->cells[0][1]);
ASSERT(ctx->cells[1][0] != ctx->cells[1][1]);
ASSERT(ctx->cells[2][0] == ctx->cells[2][1]);
libglitter_update_render_context(ctx, 30);
ASSERT(ctx->cellmap);
ASSERT(ctx->cellmap[0] == 1);
ASSERT(ctx->cellmap[1] == 2);
ASSERT(ctx->cellmap[2] == 0);
ASSERT(ctx->cellmap[3] == 1);
ASSERT(ctx->ncellvalues);
ASSERT(ctx->ncellvalues[0] == a);
ASSERT(ctx->ncellvalues[1] == b);
ASSERT(ctx->ncellvalues[2] == c);
ASSERT(ctx->noutputs == 3);
ASSERT(ctx->widthmul == 2);
ASSERT(ctx->heightmul == 2);
ASSERT(ctx->cellweights_double);
ASSERT(ctx->cellweights_double[0] == (double)1 / a);
ASSERT(ctx->cellweights_double[1] == (double)1 / b);
ASSERT(ctx->cellweights_double[2] == (double)1 / c);
ASSERT(ctx->cellweights_float);
ASSERT(ctx->cellweights_float[0] == (float)1 / a);
ASSERT(ctx->cellweights_float[1] == (float)1 / b);
ASSERT(ctx->cellweights_float[2] == (float)1 / c);
ASSERT(ctx->render_method == RENDER_METHOD_SIMPLE);
ASSERT(ctx->rowsize == 30);
ASSERT(ctx->cells[0][0] == POS(1, 0));
ASSERT(ctx->cells[1][0] == POS(0, 0) || ctx->cells[1][0] == POS(1, 1));
ASSERT(ctx->cells[1][1] == POS(1, 1) || ctx->cells[1][1] == POS(0, 0));
ASSERT(ctx->cells[2][0] == POS(0, 1));
ASSERT(ctx->cells[0][0] == ctx->cells[0][1]);
ASSERT(ctx->cells[1][0] != ctx->cells[1][1]);
ASSERT(ctx->cells[2][0] == ctx->cells[2][1]);
libglitter_free_render_context(ctx);
#undef POS
return 0;
}
#endif