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More lighting work

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This commit is contained in:
Luke Benstead 2018-05-12 21:01:51 +01:00
parent 4b8991e45f
commit a09e05b01a
3 changed files with 20 additions and 7 deletions
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17
experimental/draw.c
View File

@ -144,6 +144,7 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
// Compile
pvr_poly_cxt_t cxt = *getPVRContext();
cxt.list_type = activePolyList()->list_type;
updatePVRTextureContext(&cxt, getTexture0());
pvr_poly_compile(hdr, &cxt);
@ -167,7 +168,7 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
for(GLuint i = first; i < count; ++i) {
pvr_vertex_t* vertex = (pvr_vertex_t*) dst;
vertex->u = vertex->v = 0.0f;
vertex->argb = PVR_PACK_COLOR(0.0f, 0.0f, 0.0f, 0.0f);
vertex->argb = 0;
vertex->oargb = 0;
vertex->flags = PVR_CMD_VERTEX;
@ -202,9 +203,19 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
for(GLubyte i = 0; i < MAX_LIGHTS; ++i) {
if(isLightEnabled(i)) {
calculateLightingContribution(i, &vertex->x, normal, contribution);
to_add = PVR_PACK_COLOR(contribution[0], contribution[1], contribution[2], contribution[3]);
to_add = PVR_PACK_COLOR(contribution[3], contribution[0], contribution[1], contribution[2]);
/* FIXME: Add the colour to argb */
GLubyte a = ((vertex->argb & 0xFF000000) >> 24) + ((to_add & 0xFF000000) >> 24);
GLubyte r = ((vertex->argb & 0x00FF0000) >> 16) + ((to_add & 0x00FF0000) >> 16);
GLubyte g = ((vertex->argb & 0x0000FF00) >> 8) + ((to_add & 0x0000FF00) >> 8);
GLubyte b = ((vertex->argb & 0x000000FF) >> 0) + ((to_add & 0x000000FF) >> 0);
a = (a > 255) ? 255 : a;
r = (r > 255) ? 255 : r;
g = (g > 255) ? 255 : g;
b = (b > 255) ? 255 : b;
vertex->argb = a << 24 | r << 16 | g << 8 | b;
}
}
}

3
experimental/lighting.c
View File

@ -135,5 +135,6 @@ void APIENTRY glMaterialfv(GLenum face, GLenum pname, const GLfloat *params) {
}
void calculateLightingContribution(const GLint light, const GLfloat* pos, const GLfloat* normal, GLfloat* colour) {
colour[0] = colour[3] = 0.0f;
colour[1] = colour[2] = 0.0f;
}

7
experimental/state.c
View File

@ -78,7 +78,6 @@ static int _calcPVRBlendFactor(GLenum factor) {
case GL_ZERO:
return PVR_BLEND_ZERO;
case GL_SRC_ALPHA:
case GL_SRC_COLOR:
return PVR_BLEND_SRCALPHA;
case GL_DST_COLOR:
return PVR_BLEND_DESTCOLOR;
@ -86,13 +85,14 @@ static int _calcPVRBlendFactor(GLenum factor) {
return PVR_BLEND_DESTALPHA;
case GL_ONE_MINUS_DST_COLOR:
return PVR_BLEND_INVDESTCOLOR;
case GL_ONE_MINUS_SRC_COLOR:
case GL_ONE_MINUS_SRC_ALPHA:
return PVR_BLEND_INVSRCALPHA;
case GL_ONE_MINUS_DST_ALPHA:
return PVR_BLEND_INVDESTALPHA;
case GL_ONE:
return PVR_BLEND_ONE;
default:
fprintf(stderr, "Invalid blend mode: %d\n", factor);
return PVR_BLEND_ONE;
}
}
@ -132,7 +132,7 @@ void updatePVRTextureContext(pvr_poly_cxt_t* context, TextureObject *tx1) {
}
context->txr2.enable = PVR_TEXTURE_DISABLE;
context->txr2.alpha = PVR_ALPHA_DISABLE;
context->txr2.alpha = PVR_TXRALPHA_DISABLE;
if(tx1) {
context->txr.enable = PVR_TEXTURE_ENABLE;
@ -145,6 +145,7 @@ void updatePVRTextureContext(pvr_poly_cxt_t* context, TextureObject *tx1) {
context->txr.env = tx1->env;
context->txr.uv_flip = PVR_UVFLIP_NONE;
context->txr.uv_clamp = tx1->uv_clamp;
context->txr.alpha = PVR_TXRALPHA_ENABLE;
} else {
context->txr.enable = PVR_TEXTURE_DISABLE;
}