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https://github.com/KolibriOS/kolibrios.git
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add function 'glDrawElements' and example
git-svn-id: svn://kolibrios.org@5380 a494cfbc-eb01-0410-851d-a64ba20cac60
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IgorA
parent
448f7a59d1
commit
adb3b5e234
@ -306,68 +306,169 @@ endl
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endp
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align 4
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proc glopDrawElements uses eax ebx edx, context:dword, param:dword
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proc glopDrawElements, context:dword, param:dword
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locals
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ii dd ?
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idx dd ?
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states dd ?
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type dd ?
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size dd ?
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indices dd ? ;указатель на 16 или 32 битные индексы
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p rd 8
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endl
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pushad
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mov edx,[context]
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mov ebx,[param]
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;int i;
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;int idx;
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;int states = c->client_states;
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;int count = param[2].i;
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;int type = param[3].i;
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;unsigned int *indices_u32 = (unsigned int*)param[4].p;
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;unsigned short *indices_u16 = (unsigned short*)indices_u32;
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mov eax,[edx+offs_cont_client_states]
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mov [states],eax
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mov eax,[ebx+4]
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mov [p+4],eax ;p[1].i = param[1].i
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mov ecx,[ebx+8] ;count = param[2].i
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mov eax,[ebx+12]
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mov [type],eax ;type = param[3].i
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mov eax,[ebx+16]
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mov [indices],eax ;*indices = param[4].p
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mov eax,ebp
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sub eax,32 ;=sizeof(dd)*8
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stdcall glopBegin, edx,eax
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; for (int ii=0; ii<count; ii++) {
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; idx = (type == GL_UNSIGNED_INT) ? indices_u32[ii] : indices_u16[ii];
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; if (states & COLOR_ARRAY) {
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; GLParam p[5];
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; int size = c->color_array_size;
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; i = idx * (size + c->color_array_stride);
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; p[1].f = c->color_array[i];
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; p[2].f = c->color_array[i+1];
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; p[3].f = c->color_array[i+2];
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; p[4].f = size > 3 ? c->color_array[i+3] : 1.0f;
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; glopColor(c, p);
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; }
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; if (states & NORMAL_ARRAY) {
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; i = idx * (3 + c->normal_array_stride);
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; c->current_normal.X = c->normal_array[i];
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; c->current_normal.Y = c->normal_array[i+1];
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; c->current_normal.Z = c->normal_array[i+2];
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; c->current_normal.W = 0.0f;
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; }
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; if (states & TEXCOORD_ARRAY) {
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; int size = c->texcoord_array_size;
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; i = idx * (size + c->texcoord_array_stride);
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; c->current_tex_coord.X = c->texcoord_array[i];
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; c->current_tex_coord.Y = c->texcoord_array[i+1];
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; c->current_tex_coord.Z = size > 2 ? c->texcoord_array[i+2] : 0.0f;
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; c->current_tex_coord.W = size > 3 ? c->texcoord_array[i+3] : 1.0f;
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; }
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; if (states & VERTEX_ARRAY) {
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; GLParam p[5];
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; int size = c->vertex_array_size;
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; i = idx * (size + c->vertex_array_stride);
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; p[1].f = c->vertex_array[i];
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; p[2].f = c->vertex_array[i+1];
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; p[3].f = size > 2 ? c->vertex_array[i+2] : 0.0f;
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; p[4].f = size > 3 ? c->vertex_array[i+3] : 1.0f;
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; glopVertex(c, p);
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; }
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; }
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mov dword[ii],0
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align 4
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.cycle_0: ;for (int ii=0; ii<count; ii++)
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cmp dword[ii],ecx
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jge .cycle_0_end
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mov esi,[ii]
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cmp dword[type],GL_UNSIGNED_INT
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jne @f
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shl esi,2
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add esi,[indices]
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mov esi,[esi]
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jmp .end_0
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@@:
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shl esi,1
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add esi,[indices]
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movzx esi,word[esi]
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.end_0:
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mov [idx],esi
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bt dword[states],1 ;2^1=COLOR_ARRAY
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jnc @f
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mov esi,[edx+offs_cont_color_array_size]
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mov [size],esi
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add esi,[edx+offs_cont_color_array_stride]
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imul esi,[idx] ;esi = i
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shl esi,2
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add esi,[edx+offs_cont_color_array] ;esi = &context.color_array[i]
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mov edi,ebp
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sub edi,28 ;edi = &p[1]
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mov ebx,[esi+8]
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mov [edi],ebx ;p[1].f = context.color_array[i+2]
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mov ebx,[esi+4]
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mov [edi+4],ebx ;p[2].f = context.color_array[i+1]
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mov ebx,[esi]
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mov [edi+8],ebx ;p[3].f = context.color_array[i]
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add edi,12
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cmp dword[size],3
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jle .e1
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add esi,12
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movsd
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jmp .e2
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.e1:
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mov dword[edi],1.0 ;если задано 3 параметра, то 4-й ставим по умолчанию 1.0
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.e2:
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mov edi,ebp
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sub edi,32 ;edi = &p[0]
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mov ebx,ebp
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sub ebx,12 ;ebp-12 = &p[5]
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push ebx
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add ebx,4 ;ebp-8 = &p[6]
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push ebx
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add ebx,4 ;ebp-4 = &p[7]
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push ebx
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stdcall RGBFtoRGBI,[edi+12],[edi+8],[edi+4] ;call: r,g,b,&p[7],&p[6],&p[5]
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stdcall glopColor, edx,edi ;(context, p(op,rf,gf,bf,af,ri,gi,bi))
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@@:
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bt dword[states],2 ;2^2=NORMAL_ARRAY
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jnc @f
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mov esi,[edx+offs_cont_normal_array_stride]
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add esi,3
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imul esi,[idx] ;esi = idx * (3 + context.normal_array_stride)
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shl esi,2
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add esi,[edx+offs_cont_normal_array]
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mov edi,edx
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add edi,offs_cont_current_normal
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movsd ;context.current_normal.X = context.normal_array[i]
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movsd
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movsd
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mov dword[edi],0.0 ;context.current_normal.W = 0.0f
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@@:
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bt dword[states],3 ;2^3=TEXCOORD_ARRAY
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jnc @f
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mov esi,[edx+offs_cont_texcoord_array_size]
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mov [size],esi
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add esi,[edx+offs_cont_texcoord_array_stride]
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imul esi,[idx] ;esi = i
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shl esi,2
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add esi,[edx+offs_cont_texcoord_array] ;esi = &context.texcoord_array[i]
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mov edi,edx
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add edi,offs_cont_current_tex_coord
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movsd ;context.current_tex_coord.X = ccontext.texcoord_array[i]
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movsd
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cmp dword[size],2
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jle .e3
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movsd
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jmp .e4
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.e3:
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mov dword[edi],0.0 ;если задано 2 параметра, то 3-й ставим по умолчанию 0.0
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add edi,4
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.e4:
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cmp dword[size],3
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jle .e5
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movsd
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jmp @f
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.e5:
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mov dword[edi],1.0 ;если задано 3 параметра, то 4-й ставим по умолчанию 1.0
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@@:
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bt dword[states],0 ;2^0=VERTEX_ARRAY
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jnc @f
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mov esi,[edx+offs_cont_vertex_array_size]
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mov [size],esi
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add esi,[edx+offs_cont_vertex_array_stride]
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imul esi,[idx] ;esi = i
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shl esi,2
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add esi,[edx+offs_cont_vertex_array] ;esi = &context.vertex_array[i]
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mov edi,ebp
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sub edi,28 ;edi = &p[1]
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movsd ;p[1].f = context.vertex_array[i]
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movsd
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cmp dword[size],2
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jle .e6
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movsd
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jmp .e7
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.e6:
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mov dword[edi],0.0 ;если задано 2 параметра, то 3-й ставим по умолчанию 0.0
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add edi,4
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jmp .e8 ;и 4-й тоже ставим по умолчанию
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.e7:
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cmp dword[size],3
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jle .e8
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movsd
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sub edi,20 ;edi=&p[0]
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jmp .e9
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.e8:
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mov dword[edi],1.0 ;если задано 3 параметра, то 4-й ставим по умолчанию 1.0
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sub edi,16 ;edi=&p[0]
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.e9:
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stdcall glopVertex, edx,edi
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@@:
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inc dword[ii]
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jmp .cycle_0
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.cycle_0_end:
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mov eax,ebp
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sub eax,32 ;=sizeof(dd)*8
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stdcall glopEnd, edx,eax
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popad
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ret
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endp
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@ -167,8 +167,8 @@ SetLight:
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stdcall [glLightfv], GL_LIGHT0, GL_POSITION, light_position
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stdcall [glLightfv], GL_LIGHT0, GL_SPOT_DIRECTION, light_dir
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stdcall [glLightfv], GL_LIGHT0, GL_DIFFUSE, white_light
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stdcall [glLightfv], GL_LIGHT0, GL_SPECULAR, white_light
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; stdcall [glLightfv], GL_LIGHT0, GL_DIFFUSE, white_light
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; stdcall [glLightfv], GL_LIGHT0, GL_SPECULAR, white_light
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stdcall [glEnable], GL_COLOR_MATERIAL
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stdcall [glColorMaterial], GL_FRONT, GL_AMBIENT_AND_DIFFUSE
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@ -177,7 +177,7 @@ SetLight:
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stdcall [glLightModelfv], GL_LIGHT_MODEL_AMBIENT, lmodel_ambient
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stdcall [glEnable],GL_LIGHTING
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stdcall [glEnable],GL_LIGHT0
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; stdcall [glEnable],GL_LIGHT0
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ret
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qObj dd 0
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