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shared/xbox_nv2a.cpp: More use of std::clamp

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AJR 2024-01-09 07:44:53 -05:00
parent 3bc7d63414
commit 61d861477b
1 changed files with 4 additions and 20 deletions
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24
src/mame/shared/xbox_nv2a.cpp
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@ -2026,26 +2026,10 @@ void nv2a_renderer::render_color(int32_t scanline, const nv2a_rasterizer::extent
z = (extent.param[(int)VERTEX_PARAMETER::PARAM_Z].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_Z].dpdx);
zf = (extent.param[(int)VERTEX_PARAMETER::PARAM_1W].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_1W].dpdx);
zf = 1.0f / zf;
cb = ((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_B].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_B].dpdx)) * zf * 255.0f;
cg = ((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_G].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_G].dpdx)) * zf * 255.0f;
cr = ((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_R].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_R].dpdx)) * zf * 255.0f;
ca = ((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_A].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_A].dpdx)) * zf * 255.0f;
if (cb > 255)
cb = 255;
if (cb < 0)
cb = 0;
if (cg > 255)
cg = 255;
if (cg < 0)
cg = 0;
if (cr > 255)
cr = 255;
if (cr < 0)
cr = 0;
if (ca > 255)
ca = 255;
if (ca < 0)
ca = 0;
cb = std::clamp<int>(((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_B].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_B].dpdx)) * zf * 255.0f, 0, 255);
cg = std::clamp<int>(((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_G].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_G].dpdx)) * zf * 255.0f, 0, 255);
cr = std::clamp<int>(((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_R].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_R].dpdx)) * zf * 255.0f, 0, 255);
ca = std::clamp<int>(((extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_A].start + (double)x * extent.param[(int)VERTEX_PARAMETER::PARAM_COLOR_A].dpdx)) * zf * 255.0f, 0, 255);
a8r8g8b8 = (ca << 24) | (cr << 16) | (cg << 8) | cb; // pixel color obtained by interpolating the colors of the vertices
write_pixel(xp, scanline, a8r8g8b8, z);
x--;