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irrlicht/source/Irrlicht/burning_shader_compile_triangle.h

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- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
#include "burning_shader_compile_verify.h"
void burning_shader_class::drawTriangle(const s4DVertex* burning_restrict a, const s4DVertex* burning_restrict b, const s4DVertex* burning_restrict c)
{
// sort on height, y
if (a->Pos.y > b->Pos.y) swapVertexPointer(&a, &b);
if (a->Pos.y > c->Pos.y) swapVertexPointer(&a, &c);
if (b->Pos.y > c->Pos.y) swapVertexPointer(&b, &c);
const f32 ca = c->Pos.y - a->Pos.y;
const f32 ba = b->Pos.y - a->Pos.y;
const f32 cb = c->Pos.y - b->Pos.y;
// calculate delta y of the edges
scan.invDeltaY[0] = reciprocal_edge(ca);
scan.invDeltaY[1] = reciprocal_edge(ba);
scan.invDeltaY[2] = reciprocal_edge(cb);
if (F32_LOWER_EQUAL_0(scan.invDeltaY[0]))
return;
// find if the major edge is left or right aligned
f32 temp[4];
temp[0] = a->Pos.x - c->Pos.x;
temp[1] = -ca;
temp[2] = b->Pos.x - a->Pos.x;
temp[3] = ba;
scan.left = (temp[0] * temp[3] - temp[1] * temp[2]) > 0.f ? 0 : 1;
scan.right = 1 - scan.left;
// calculate slopes for the major edge
scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0];
scan.x[0] = a->Pos.x;
#ifdef IPOL_Z
scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0];
scan.z[0] = a->Pos.z;
#endif
#ifdef IPOL_W
scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0];
scan.w[0] = a->Pos.w;
#endif
#ifdef IPOL_C0
scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0];
scan.c[0][0] = a->Color[0];
#endif
#ifdef IPOL_T0
scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0];
scan.t[0][0] = a->Tex[0];
#endif
#ifdef IPOL_T1
scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0];
scan.t[1][0] = a->Tex[1];
#endif
// top left fill convention y run
s32 yStart;
s32 yEnd;
#ifdef SUBTEXEL
f32 subPixel;
#endif
// rasterize upper sub-triangle
if (F32_GREATER_0(scan.invDeltaY[1]))
{
// calculate slopes for top edge
scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1];
scan.x[1] = a->Pos.x;
#ifdef IPOL_Z
scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1];
scan.z[1] = a->Pos.z;
#endif
#ifdef IPOL_W
scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1];
scan.w[1] = a->Pos.w;
#endif
#ifdef IPOL_C0
scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1];
scan.c[0][1] = a->Color[0];
#endif
#ifdef IPOL_T0
scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1];
scan.t[0][1] = a->Tex[0];
#endif
#ifdef IPOL_T1
scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1];
scan.t[1][1] = a->Tex[1];
#endif
// apply top-left fill convention, top part
yStart = fill_convention_left(a->Pos.y);
yEnd = fill_convention_right(b->Pos.y);
#ifdef SUBTEXEL
subPixel = ((f32)yStart) - a->Pos.y;
// correct to pixel center
scan.x[0] += scan.slopeX[0] * subPixel;
scan.x[1] += scan.slopeX[1] * subPixel;
#ifdef IPOL_Z
scan.z[0] += scan.slopeZ[0] * subPixel;
scan.z[1] += scan.slopeZ[1] * subPixel;
#endif
#ifdef IPOL_W
scan.w[0] += scan.slopeW[0] * subPixel;
scan.w[1] += scan.slopeW[1] * subPixel;
#endif
#ifdef IPOL_C0
scan.c[0][0] += scan.slopeC[0][0] * subPixel;
scan.c[0][1] += scan.slopeC[0][1] * subPixel;
#endif
#ifdef IPOL_T0
scan.t[0][0] += scan.slopeT[0][0] * subPixel;
scan.t[0][1] += scan.slopeT[0][1] * subPixel;
#endif
#ifdef IPOL_T1
scan.t[1][0] += scan.slopeT[1][0] * subPixel;
scan.t[1][1] += scan.slopeT[1][1] * subPixel;
#endif
#endif
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
line.x_edgetest = fill_convention_edge(scan.slopeX[scan.left]);
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
// rasterize the edge scanlines
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
for (line.y = yStart; line.y <= yEnd; line.y += SOFTWARE_DRIVER_2_STEP_Y)
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
{
line.x[scan.left] = scan.x[0];
line.x[scan.right] = scan.x[1];
#ifdef IPOL_Z
line.z[scan.left] = scan.z[0];
line.z[scan.right] = scan.z[1];
#endif
#ifdef IPOL_W
line.w[scan.left] = scan.w[0];
line.w[scan.right] = scan.w[1];
#endif
#ifdef IPOL_C0
line.c[0][scan.left] = scan.c[0][0];
line.c[0][scan.right] = scan.c[0][1];
#endif
#ifdef IPOL_T0
line.t[0][scan.left] = scan.t[0][0];
line.t[0][scan.right] = scan.t[0][1];
#endif
#ifdef IPOL_T1
line.t[1][scan.left] = scan.t[1][0];
line.t[1][scan.right] = scan.t[1][1];
#endif
// render a scanline
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
interlace_scanline
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
(this->*fragmentShader) ();
if (EdgeTestPass & edge_test_first_line) break;
scan.x[0] += scan.slopeX[0];
scan.x[1] += scan.slopeX[1];
#ifdef IPOL_Z
scan.z[0] += scan.slopeZ[0];
scan.z[1] += scan.slopeZ[1];
#endif
#ifdef IPOL_W
scan.w[0] += scan.slopeW[0];
scan.w[1] += scan.slopeW[1];
#endif
#ifdef IPOL_C0
scan.c[0][0] += scan.slopeC[0][0];
scan.c[0][1] += scan.slopeC[0][1];
#endif
#ifdef IPOL_T0
scan.t[0][0] += scan.slopeT[0][0];
scan.t[0][1] += scan.slopeT[0][1];
#endif
#ifdef IPOL_T1
scan.t[1][0] += scan.slopeT[1][0];
scan.t[1][1] += scan.slopeT[1][1];
#endif
}
}
// rasterize lower sub-triangle
if (F32_GREATER_0(scan.invDeltaY[2]))
{
// advance to middle point
if (F32_GREATER_0(scan.invDeltaY[1]))
{
temp[0] = b->Pos.y - a->Pos.y; // dy
scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0];
#ifdef IPOL_Z
scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0];
#endif
#ifdef IPOL_W
scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0];
#endif
#ifdef IPOL_C0
scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0];
#endif
#ifdef IPOL_T0
scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0];
#endif
#ifdef IPOL_T1
scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0];
#endif
}
// calculate slopes for bottom edge
scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2];
scan.x[1] = b->Pos.x;
#ifdef IPOL_Z
scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2];
scan.z[1] = b->Pos.z;
#endif
#ifdef IPOL_W
scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2];
scan.w[1] = b->Pos.w;
#endif
#ifdef IPOL_C0
scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2];
scan.c[0][1] = b->Color[0];
#endif
#ifdef IPOL_T0
scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2];
scan.t[0][1] = b->Tex[0];
#endif
#ifdef IPOL_T1
scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2];
scan.t[1][1] = b->Tex[1];
#endif
// apply top-left fill convention, top part
yStart = fill_convention_left(b->Pos.y);
yEnd = fill_convention_right(c->Pos.y);
#ifdef SUBTEXEL
subPixel = ((f32)yStart) - b->Pos.y;
// correct to pixel center
scan.x[0] += scan.slopeX[0] * subPixel;
scan.x[1] += scan.slopeX[1] * subPixel;
#ifdef IPOL_Z
scan.z[0] += scan.slopeZ[0] * subPixel;
scan.z[1] += scan.slopeZ[1] * subPixel;
#endif
#ifdef IPOL_W
scan.w[0] += scan.slopeW[0] * subPixel;
scan.w[1] += scan.slopeW[1] * subPixel;
#endif
#ifdef IPOL_C0
scan.c[0][0] += scan.slopeC[0][0] * subPixel;
scan.c[0][1] += scan.slopeC[0][1] * subPixel;
#endif
#ifdef IPOL_T0
scan.t[0][0] += scan.slopeT[0][0] * subPixel;
scan.t[0][1] += scan.slopeT[0][1] * subPixel;
#endif
#ifdef IPOL_T1
scan.t[1][0] += scan.slopeT[1][0] * subPixel;
scan.t[1][1] += scan.slopeT[1][1] * subPixel;
#endif
#endif
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
line.x_edgetest = fill_convention_edge(scan.slopeX[scan.left]);
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
// rasterize the edge scanlines
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
for (line.y = yStart; line.y <= yEnd; line.y += SOFTWARE_DRIVER_2_STEP_Y)
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
{
line.x[scan.left] = scan.x[0];
line.x[scan.right] = scan.x[1];
#ifdef IPOL_Z
line.z[scan.left] = scan.z[0];
line.z[scan.right] = scan.z[1];
#endif
#ifdef IPOL_W
line.w[scan.left] = scan.w[0];
line.w[scan.right] = scan.w[1];
#endif
#ifdef IPOL_C0
line.c[0][scan.left] = scan.c[0][0];
line.c[0][scan.right] = scan.c[0][1];
#endif
#ifdef IPOL_T0
line.t[0][scan.left] = scan.t[0][0];
line.t[0][scan.right] = scan.t[0][1];
#endif
#ifdef IPOL_T1
line.t[1][scan.left] = scan.t[1][0];
line.t[1][scan.right] = scan.t[1][1];
#endif
// render a scanline
Burningsvideo 0.52 - scissor for 2D - downscaled internal rendertargets,interlaced drawing - supertuxkart gui ok git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6154 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-11-10 19:49:39 +01:00
interlace_scanline
- BurningVideo: 0.50 - 10 year anniversary update - Lighting model reworked. moved to eyespace like openGL. [Specular Highlights, Fog, Sphere/Reflection Map] - increased internal s4DVertex to support 4 Textures and 4 Colors [switchable] - Textures are handled as sRGB during Mipmap Generation. More accurate, less visual disruption - 2D is drawn as 3D like hardware drivers. [switchable]. enables viewport scaling, material2D - Texture Spatial Resolution Limiting working. [lower memory consumption,SOFTWARE_DRIVER_2_TEXTURE_MAXSIZE] - SuperTuxKart 8.0.1 playable git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6086 dfc29bdd-3216-0410-991c-e03cc46cb475
2020-02-22 21:48:12 +01:00
(this->*fragmentShader) ();
if (EdgeTestPass & edge_test_first_line) break;
scan.x[0] += scan.slopeX[0];
scan.x[1] += scan.slopeX[1];
#ifdef IPOL_Z
scan.z[0] += scan.slopeZ[0];
scan.z[1] += scan.slopeZ[1];
#endif
#ifdef IPOL_W
scan.w[0] += scan.slopeW[0];
scan.w[1] += scan.slopeW[1];
#endif
#ifdef IPOL_C0
scan.c[0][0] += scan.slopeC[0][0];
scan.c[0][1] += scan.slopeC[0][1];
#endif
#ifdef IPOL_T0
scan.t[0][0] += scan.slopeT[0][0];
scan.t[0][1] += scan.slopeT[0][1];
#endif
#ifdef IPOL_T1
scan.t[1][0] += scan.slopeT[1][0];
scan.t[1][1] += scan.slopeT[1][1];
#endif
}
}
}
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