diff options
Diffstat (limited to 'sys/glsink/regcomb_yuvrgb.c')
| -rw-r--r-- | sys/glsink/regcomb_yuvrgb.c | 583 |
1 files changed, 326 insertions, 257 deletions
diff --git a/sys/glsink/regcomb_yuvrgb.c b/sys/glsink/regcomb_yuvrgb.c index d06427f4..54727d1e 100644 --- a/sys/glsink/regcomb_yuvrgb.c +++ b/sys/glsink/regcomb_yuvrgb.c @@ -23,313 +23,378 @@ unsigned char *UPlane; unsigned char *VPlane; // YUV 4:2:2 example -unsigned int Ywidth=512, Yheight=512; -unsigned int UVwidth=256, UVheight=512; +unsigned int Ywidth = 512, Yheight = 512; +unsigned int UVwidth = 256, UVheight = 512; int tex_xsize, tex_ysize; -void GenerateRGBTables(unsigned char *Ytable, // Y-palette - unsigned char *Utable, // U-palette - unsigned char *Vtable, // V-palette - float *bias, // bias (fourth vector to be added) - float *Uscale, // scaling color for U - float *Vscale) // scaling color for V +void +GenerateRGBTables (unsigned char *Ytable, // Y-palette + unsigned char *Utable, // U-palette + unsigned char *Vtable, // V-palette + float *bias, // bias (fourth vector to be added) + float *Uscale, // scaling color for U + float *Vscale) // scaling color for V { - int i; - const float mat[9]= { // the modified YUV->RGB matrix - +1.130469478f,-0.058755723f,+1.596026304f, - +1.130469478f,-0.450515935f,-0.812967512f, - +1.130469478f,+1.958477882f, 0.0f - }; - #define COMPRESS(a)(0.5f*(a)+128.0f) // counter-piece to EXPAND_NORMAL - #define fCOMPRESS(a) (0.5f*(a)+0.5f); - #define XCLAMP(a) ((a)<0.0f ? 0.0f : ((a)>255.0f ? 255.0f : (a))) // should not be necessary, but what do you know. - bias[0]=fCOMPRESS(-0.842580964f); - bias[1]=fCOMPRESS(+0.563287723f); - bias[2]=fCOMPRESS(-1.0f); - bias[3]=0.0f; - Uscale[0]=8.0f/255.0f; - Uscale[1]=60.0f/255.0f; - Uscale[2]=250.0f/255.0f; - Uscale[3]=0.0f; - Vscale[0]=204.0f/255.0f; - Vscale[1]=105.0f/255.0f; - Vscale[2]=0.5f; - Vscale[3]=0.0f; - for (i=0; i<256; i++) { - // Y-table holds unsigned values - Ytable[3*i ]=(unsigned char)XCLAMP(mat[0]*(float)i); // R - Ytable[3*i+1]=(unsigned char)XCLAMP(mat[3]*(float)i); // G - Ytable[3*i+2]=(unsigned char)XCLAMP(mat[6]*(float)i); // B - // U-table holds signed values - Utable[3*i ]=(unsigned char)XCLAMP(COMPRESS(255.0f/ 16.0f*mat[1]*(float)i)); // R - Utable[3*i+1]=(unsigned char)XCLAMP(COMPRESS(255.0f/120.0f*mat[4]*(float)i)); // G - Utable[3*i+2]=(unsigned char)XCLAMP(COMPRESS(255.0f/500.0f*mat[7]*(float)i)); // B - // V-table holds signed values - Vtable[3*i ]=(unsigned char)XCLAMP(COMPRESS(255.0f/408.0f*mat[2]*(float)i)); // R - Vtable[3*i+1]=(unsigned char)XCLAMP(COMPRESS(255.0f/210.0f*mat[5]*(float)i)); // G - Vtable[3*i+2]=(unsigned char)(128.0f-14.0f); // G constant - } - #undef fCOMPRESS - #undef COMPRESS - #undef XCLAMP + int i; + const float mat[9] = { // the modified YUV->RGB matrix + +1.130469478f, -0.058755723f, +1.596026304f, + +1.130469478f, -0.450515935f, -0.812967512f, + +1.130469478f, +1.958477882f, 0.0f + }; +#define COMPRESS(a)(0.5f*(a)+128.0f) // counter-piece to EXPAND_NORMAL +#define fCOMPRESS(a) (0.5f*(a)+0.5f); +#define XCLAMP(a) ((a)<0.0f ? 0.0f : ((a)>255.0f ? 255.0f : (a))) // should not be necessary, but what do you know. + bias[0] = fCOMPRESS (-0.842580964f); + bias[1] = fCOMPRESS (+0.563287723f); + bias[2] = fCOMPRESS (-1.0f); + bias[3] = 0.0f; + Uscale[0] = 8.0f / 255.0f; + Uscale[1] = 60.0f / 255.0f; + Uscale[2] = 250.0f / 255.0f; + Uscale[3] = 0.0f; + Vscale[0] = 204.0f / 255.0f; + Vscale[1] = 105.0f / 255.0f; + Vscale[2] = 0.5f; + Vscale[3] = 0.0f; + for (i = 0; i < 256; i++) { + // Y-table holds unsigned values + Ytable[3 * i] = (unsigned char) XCLAMP (mat[0] * (float) i); // R + Ytable[3 * i + 1] = (unsigned char) XCLAMP (mat[3] * (float) i); // G + Ytable[3 * i + 2] = (unsigned char) XCLAMP (mat[6] * (float) i); // B + // U-table holds signed values + Utable[3 * i] = (unsigned char) XCLAMP (COMPRESS (255.0f / 16.0f * mat[1] * (float) i)); // R + Utable[3 * i + 1] = (unsigned char) XCLAMP (COMPRESS (255.0f / 120.0f * mat[4] * (float) i)); // G + Utable[3 * i + 2] = (unsigned char) XCLAMP (COMPRESS (255.0f / 500.0f * mat[7] * (float) i)); // B + // V-table holds signed values + Vtable[3 * i] = (unsigned char) XCLAMP (COMPRESS (255.0f / 408.0f * mat[2] * (float) i)); // R + Vtable[3 * i + 1] = (unsigned char) XCLAMP (COMPRESS (255.0f / 210.0f * mat[5] * (float) i)); // G + Vtable[3 * i + 2] = (unsigned char) (128.0f - 14.0f); // G constant + } +#undef fCOMPRESS +#undef COMPRESS +#undef XCLAMP } // Sets the constants. Call once prior to rendering. -void SetConsts(float *bias, float *Uscale, float *Vscale) { - glEnable(GL_REGISTER_COMBINERS_NV); - glColor3fv(bias); - //printf("%f %f %f\n",bias[0],bias[1],bias[2]); - glCombinerParameterfvNV(GL_CONSTANT_COLOR0_NV,Uscale); - glCombinerParameterfvNV(GL_CONSTANT_COLOR1_NV,Vscale); +void +SetConsts (float *bias, float *Uscale, float *Vscale) +{ + glEnable (GL_REGISTER_COMBINERS_NV); + glColor3fv (bias); + //printf("%f %f %f\n",bias[0],bias[1],bias[2]); + glCombinerParameterfvNV (GL_CONSTANT_COLOR0_NV, Uscale); + glCombinerParameterfvNV (GL_CONSTANT_COLOR1_NV, Vscale); } /* * SOFTWARE PATH - */ + */ -inline void map_EXPAND_NORMAL(float *v) { - v[0]=2.0f*v[0]-1.0f; - v[1]=2.0f*v[1]-1.0f; - v[2]=2.0f*v[2]-1.0f; +inline void +map_EXPAND_NORMAL (float *v) +{ + v[0] = 2.0f * v[0] - 1.0f; + v[1] = 2.0f * v[1] - 1.0f; + v[2] = 2.0f * v[2] - 1.0f; } -inline void map_UNSIGNED_INVERT(float *v) { - v[0]=1.0f-v[0]; - v[1]=1.0f-v[1]; - v[2]=1.0f-v[2]; +inline void +map_UNSIGNED_INVERT (float *v) +{ + v[0] = 1.0f - v[0]; + v[1] = 1.0f - v[1]; + v[2] = 1.0f - v[2]; } -inline void map_UNSIGNED_IDENTITY(float *v) { - v[0]=(v[0]<0.0f ? 0.0f : v[0]); - v[1]=(v[1]<0.0f ? 0.0f : v[1]); - v[2]=(v[2]<0.0f ? 0.0f : v[2]); +inline void +map_UNSIGNED_IDENTITY (float *v) +{ + v[0] = (v[0] < 0.0f ? 0.0f : v[0]); + v[1] = (v[1] < 0.0f ? 0.0f : v[1]); + v[2] = (v[2] < 0.0f ? 0.0f : v[2]); } -inline void map_SIGNED_IDENTITY(float *v) { +inline void +map_SIGNED_IDENTITY (float *v) +{ } -inline void omap_SCALE_BY_TWO(float *v) { - v[0]*=2.0f; - v[1]*=2.0f; - v[2]*=2.0f; +inline void +omap_SCALE_BY_TWO (float *v) +{ + v[0] *= 2.0f; + v[1] *= 2.0f; + v[2] *= 2.0f; } -inline void omap_SCALE_BY_ONE_HALF(float *v) { - v[0]*=0.5f; - v[1]*=0.5f; - v[2]*=0.5f; +inline void +omap_SCALE_BY_ONE_HALF (float *v) +{ + v[0] *= 0.5f; + v[1] *= 0.5f; + v[2] *= 0.5f; } -inline void omap_RANGE(float *v) { - v[0]=(v[0]<-1.0f ? -1.0f : (v[0]>1.0f ? 1.0f : v[0])); - v[1]=(v[1]<-1.0f ? -1.0f : (v[1]>1.0f ? 1.0f : v[1])); - v[2]=(v[2]<-1.0f ? -1.0f : (v[2]>1.0f ? 1.0f : v[2])); +inline void +omap_RANGE (float *v) +{ + v[0] = (v[0] < -1.0f ? -1.0f : (v[0] > 1.0f ? 1.0f : v[0])); + v[1] = (v[1] < -1.0f ? -1.0f : (v[1] > 1.0f ? 1.0f : v[1])); + v[2] = (v[2] < -1.0f ? -1.0f : (v[2] > 1.0f ? 1.0f : v[2])); } -inline void omap_CLAMP_01(float *v) { - v[0]=(v[0]<0.0f ? 0.0f : (v[0]>1.0f ? 1.0f : v[0])); - v[1]=(v[1]<0.0f ? 0.0f : (v[1]>1.0f ? 1.0f : v[1])); - v[2]=(v[2]<0.0f ? 0.0f : (v[2]>1.0f ? 1.0f : v[2])); +inline void +omap_CLAMP_01 (float *v) +{ + v[0] = (v[0] < 0.0f ? 0.0f : (v[0] > 1.0f ? 1.0f : v[0])); + v[1] = (v[1] < 0.0f ? 0.0f : (v[1] > 1.0f ? 1.0f : v[1])); + v[2] = (v[2] < 0.0f ? 0.0f : (v[2] > 1.0f ? 1.0f : v[2])); } -void PerformSWCombiner(unsigned char *Result, - unsigned char *tex0, - unsigned char *tex1, - unsigned char *tex2, - float *COLOR0, - float *CONST0, - float *CONST1 - ) +void +PerformSWCombiner (unsigned char *Result, + unsigned char *tex0, + unsigned char *tex1, + unsigned char *tex2, float *COLOR0, float *CONST0, float *CONST1) { - float SPARE0[3]; - float SPARE1[3]; - float A[3],B[3],C[3],D[3]; - float TEX0[3],TEX1[3],TEX2[3]; - float ZERO[3]={0.0f,0.0f,0.0f}; - - TEX0[0]=(float)tex0[0]/255.0f; - TEX0[1]=(float)tex0[1]/255.0f; - TEX0[2]=(float)tex0[2]/255.0f; - - TEX1[0]=(float)tex1[0]/255.0f; - TEX1[1]=(float)tex1[1]/255.0f; - TEX1[2]=(float)tex1[2]/255.0f; - - TEX2[0]=(float)tex2[0]/255.0f; - TEX2[1]=(float)tex2[1]/255.0f; - TEX2[2]=(float)tex2[2]/255.0f; - - // Combiner Stage 0: - memcpy(A,TEX0,3*sizeof(float)); map_UNSIGNED_IDENTITY(A); - memcpy(B,ZERO,3*sizeof(float)); map_UNSIGNED_INVERT(B); - memcpy(C,COLOR0,3*sizeof(float)); map_EXPAND_NORMAL(C); - memcpy(D,ZERO,3*sizeof(float)); map_UNSIGNED_INVERT(D); - SPARE0[0]=A[0]*B[0]+C[0]*D[0]; - SPARE0[1]=A[1]*B[1]+C[1]*D[1]; - SPARE0[2]=A[2]*B[2]+C[2]*D[2]; - omap_SCALE_BY_ONE_HALF(SPARE0); - omap_RANGE(SPARE0); - - // Combiner Stage 1: - memcpy(A,TEX1,3*sizeof(float)); map_EXPAND_NORMAL(A); - memcpy(B,CONST0,3*sizeof(float)); map_UNSIGNED_IDENTITY(B); - memcpy(C,TEX2,3*sizeof(float)); map_EXPAND_NORMAL(C); - memcpy(D,CONST1,3*sizeof(float)); map_UNSIGNED_IDENTITY(D); - SPARE1[0]=A[0]*B[0]+C[0]*D[0]; - SPARE1[1]=A[1]*B[1]+C[1]*D[1]; - SPARE1[2]=A[2]*B[2]+C[2]*D[2]; - omap_RANGE(SPARE1); - - // Combiner Stage 2: - memcpy(A,SPARE0,3*sizeof(float)); map_SIGNED_IDENTITY(A); - memcpy(B,ZERO,3*sizeof(float)); map_UNSIGNED_INVERT(B); - memcpy(C,SPARE1,3*sizeof(float)); map_SIGNED_IDENTITY(C); - memcpy(D,ZERO,3*sizeof(float)); map_UNSIGNED_INVERT(D); - SPARE0[0]=A[0]*B[0]+C[0]*D[0]; - SPARE0[1]=A[1]*B[1]+C[1]*D[1]; - SPARE0[2]=A[2]*B[2]+C[2]*D[2]; - omap_SCALE_BY_TWO(SPARE0); - omap_RANGE(SPARE0); - - // Final Combiner Stage: - memcpy(A,ZERO,3*sizeof(float)); map_UNSIGNED_INVERT(A); - memcpy(B,SPARE0,3*sizeof(float)); map_UNSIGNED_IDENTITY(B); - memcpy(C,ZERO,3*sizeof(float)); map_UNSIGNED_IDENTITY(C); - memcpy(D,ZERO,3*sizeof(float)); map_UNSIGNED_IDENTITY(D); - SPARE0[0]=A[0]*B[0]+(1.0f-A[0])*C[0]+D[0]; - SPARE0[1]=A[1]*B[1]+(1.0f-A[1])*C[1]+D[1]; - SPARE0[2]=A[2]*B[2]+(1.0f-A[2])*C[2]+D[2]; - omap_CLAMP_01(SPARE0); - Result[0]=(unsigned char)(SPARE0[0]*255.0f); - Result[1]=(unsigned char)(SPARE0[1]*255.0f); - Result[2]=(unsigned char)(SPARE0[2]*255.0f); + float SPARE0[3]; + float SPARE1[3]; + float A[3], B[3], C[3], D[3]; + float TEX0[3], TEX1[3], TEX2[3]; + float ZERO[3] = { 0.0f, 0.0f, 0.0f }; + + TEX0[0] = (float) tex0[0] / 255.0f; + TEX0[1] = (float) tex0[1] / 255.0f; + TEX0[2] = (float) tex0[2] / 255.0f; + + TEX1[0] = (float) tex1[0] / 255.0f; + TEX1[1] = (float) tex1[1] / 255.0f; + TEX1[2] = (float) tex1[2] / 255.0f; + + TEX2[0] = (float) tex2[0] / 255.0f; + TEX2[1] = (float) tex2[1] / 255.0f; + TEX2[2] = (float) tex2[2] / 255.0f; + + // Combiner Stage 0: + memcpy (A, TEX0, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (A); + memcpy (B, ZERO, 3 * sizeof (float)); + map_UNSIGNED_INVERT (B); + memcpy (C, COLOR0, 3 * sizeof (float)); + map_EXPAND_NORMAL (C); + memcpy (D, ZERO, 3 * sizeof (float)); + map_UNSIGNED_INVERT (D); + SPARE0[0] = A[0] * B[0] + C[0] * D[0]; + SPARE0[1] = A[1] * B[1] + C[1] * D[1]; + SPARE0[2] = A[2] * B[2] + C[2] * D[2]; + omap_SCALE_BY_ONE_HALF (SPARE0); + omap_RANGE (SPARE0); + + // Combiner Stage 1: + memcpy (A, TEX1, 3 * sizeof (float)); + map_EXPAND_NORMAL (A); + memcpy (B, CONST0, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (B); + memcpy (C, TEX2, 3 * sizeof (float)); + map_EXPAND_NORMAL (C); + memcpy (D, CONST1, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (D); + SPARE1[0] = A[0] * B[0] + C[0] * D[0]; + SPARE1[1] = A[1] * B[1] + C[1] * D[1]; + SPARE1[2] = A[2] * B[2] + C[2] * D[2]; + omap_RANGE (SPARE1); + + // Combiner Stage 2: + memcpy (A, SPARE0, 3 * sizeof (float)); + map_SIGNED_IDENTITY (A); + memcpy (B, ZERO, 3 * sizeof (float)); + map_UNSIGNED_INVERT (B); + memcpy (C, SPARE1, 3 * sizeof (float)); + map_SIGNED_IDENTITY (C); + memcpy (D, ZERO, 3 * sizeof (float)); + map_UNSIGNED_INVERT (D); + SPARE0[0] = A[0] * B[0] + C[0] * D[0]; + SPARE0[1] = A[1] * B[1] + C[1] * D[1]; + SPARE0[2] = A[2] * B[2] + C[2] * D[2]; + omap_SCALE_BY_TWO (SPARE0); + omap_RANGE (SPARE0); + + // Final Combiner Stage: + memcpy (A, ZERO, 3 * sizeof (float)); + map_UNSIGNED_INVERT (A); + memcpy (B, SPARE0, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (B); + memcpy (C, ZERO, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (C); + memcpy (D, ZERO, 3 * sizeof (float)); + map_UNSIGNED_IDENTITY (D); + SPARE0[0] = A[0] * B[0] + (1.0f - A[0]) * C[0] + D[0]; + SPARE0[1] = A[1] * B[1] + (1.0f - A[1]) * C[1] + D[1]; + SPARE0[2] = A[2] * B[2] + (1.0f - A[2]) * C[2] + D[2]; + omap_CLAMP_01 (SPARE0); + Result[0] = (unsigned char) (SPARE0[0] * 255.0f); + Result[1] = (unsigned char) (SPARE0[1] * 255.0f); + Result[2] = (unsigned char) (SPARE0[2] * 255.0f); } // Sets up the register combiners. Call once prior to rendering -void SetupCombiners(void) +void +SetupCombiners (void) { - glCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV,3); - // Combiner Stage 0: th. OK - glCombinerInputNV (GL_COMBINER0_NV,GL_RGB,GL_VARIABLE_A_NV,GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glCombinerInputNV (GL_COMBINER0_NV,GL_RGB,GL_VARIABLE_B_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER0_NV,GL_RGB,GL_VARIABLE_C_NV,GL_PRIMARY_COLOR_NV,GL_EXPAND_NORMAL_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER0_NV,GL_RGB,GL_VARIABLE_D_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB); - glCombinerOutputNV(GL_COMBINER0_NV,GL_RGB,GL_DISCARD_NV,GL_DISCARD_NV,GL_SPARE0_NV,GL_SCALE_BY_ONE_HALF_NV,GL_NONE,GL_FALSE,GL_FALSE,GL_FALSE); - // Combiner Stage 1: th. OK - glCombinerInputNV (GL_COMBINER1_NV,GL_RGB,GL_VARIABLE_A_NV,GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER1_NV,GL_RGB,GL_VARIABLE_B_NV,GL_CONSTANT_COLOR0_NV,GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glCombinerInputNV (GL_COMBINER1_NV,GL_RGB,GL_VARIABLE_C_NV,GL_TEXTURE2_ARB, GL_EXPAND_NORMAL_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER1_NV,GL_RGB,GL_VARIABLE_D_NV,GL_CONSTANT_COLOR1_NV,GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glCombinerOutputNV(GL_COMBINER1_NV,GL_RGB,GL_DISCARD_NV,GL_DISCARD_NV,GL_SPARE1_NV,GL_NONE,GL_NONE,GL_FALSE,GL_FALSE,GL_FALSE); - // Combiner Stage 2: th. OK - glCombinerInputNV (GL_COMBINER2_NV,GL_RGB,GL_VARIABLE_A_NV,GL_SPARE0_NV, GL_SIGNED_IDENTITY_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER2_NV,GL_RGB,GL_VARIABLE_B_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER2_NV,GL_RGB,GL_VARIABLE_C_NV,GL_SPARE1_NV, GL_SIGNED_IDENTITY_NV, GL_RGB); - glCombinerInputNV (GL_COMBINER2_NV,GL_RGB,GL_VARIABLE_D_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB); - glCombinerOutputNV(GL_COMBINER2_NV,GL_RGB,GL_DISCARD_NV,GL_DISCARD_NV,GL_SPARE0_NV,GL_SCALE_BY_TWO_NV,GL_NONE,GL_FALSE,GL_FALSE,GL_FALSE); - // Final Sage: th. OK - glFinalCombinerInputNV(GL_VARIABLE_A_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB); - glFinalCombinerInputNV(GL_VARIABLE_B_NV,GL_SPARE0_NV,GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glFinalCombinerInputNV(GL_VARIABLE_C_NV,GL_ZERO, GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glFinalCombinerInputNV(GL_VARIABLE_D_NV,GL_ZERO, GL_UNSIGNED_IDENTITY_NV,GL_RGB); - glFinalCombinerInputNV(GL_VARIABLE_G_NV,GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA); + glCombinerParameteriNV (GL_NUM_GENERAL_COMBINERS_NV, 3); + // Combiner Stage 0: th. OK + glCombinerInputNV (GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB, + GL_UNSIGNED_IDENTITY_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_ZERO, + GL_UNSIGNED_INVERT_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV, + GL_PRIMARY_COLOR_NV, GL_EXPAND_NORMAL_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO, + GL_UNSIGNED_INVERT_NV, GL_RGB); + glCombinerOutputNV (GL_COMBINER0_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, + GL_SPARE0_NV, GL_SCALE_BY_ONE_HALF_NV, GL_NONE, GL_FALSE, GL_FALSE, + GL_FALSE); + // Combiner Stage 1: th. OK + glCombinerInputNV (GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE1_ARB, + GL_EXPAND_NORMAL_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV, + GL_CONSTANT_COLOR0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE2_ARB, + GL_EXPAND_NORMAL_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_D_NV, + GL_CONSTANT_COLOR1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB); + glCombinerOutputNV (GL_COMBINER1_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, + GL_SPARE1_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE); + // Combiner Stage 2: th. OK + glCombinerInputNV (GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE0_NV, + GL_SIGNED_IDENTITY_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_B_NV, GL_ZERO, + GL_UNSIGNED_INVERT_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_C_NV, GL_SPARE1_NV, + GL_SIGNED_IDENTITY_NV, GL_RGB); + glCombinerInputNV (GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO, + GL_UNSIGNED_INVERT_NV, GL_RGB); + glCombinerOutputNV (GL_COMBINER2_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, + GL_SPARE0_NV, GL_SCALE_BY_TWO_NV, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE); + // Final Sage: th. OK + glFinalCombinerInputNV (GL_VARIABLE_A_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, + GL_RGB); + glFinalCombinerInputNV (GL_VARIABLE_B_NV, GL_SPARE0_NV, + GL_UNSIGNED_IDENTITY_NV, GL_RGB); + glFinalCombinerInputNV (GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, + GL_RGB); + glFinalCombinerInputNV (GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, + GL_RGB); + glFinalCombinerInputNV (GL_VARIABLE_G_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, + GL_ALPHA); } -unsigned int PowerOfTwo(unsigned int i) { - unsigned int bitsum=0; - unsigned int shifts=0; - unsigned int j=(unsigned int)i; - // Check wether i is a power of two - may contain at most one set bit - do { - bitsum+=j&1; - j=j>>1; - ++shifts; - } while (j>0); - if (bitsum==1) return i; - else return (1<<shifts); +unsigned int +PowerOfTwo (unsigned int i) +{ + unsigned int bitsum = 0; + unsigned int shifts = 0; + unsigned int j = (unsigned int) i; + + // Check wether i is a power of two - may contain at most one set bit + do { + bitsum += j & 1; + j = j >> 1; + ++shifts; + } while (j > 0); + if (bitsum == 1) + return i; + else + return (1 << shifts); } // Initializes textures. Call once prior to rendering -void InitYUVPlanes(GLuint *Yhandle, GLuint *Uhandle, GLuint *Vhandle, - unsigned int Ywidth, unsigned int Yheight, - unsigned int UVwidth, unsigned int UVheight, - GLenum filter, // filter should be either GL_NEAREST or GL_LINEAR. Test this! - unsigned char* Ypal, unsigned char *Upal, unsigned char *Vpal) +void +InitYUVPlanes (GLuint * Yhandle, GLuint * Uhandle, GLuint * Vhandle, unsigned int Ywidth, unsigned int Yheight, unsigned int UVwidth, unsigned int UVheight, GLenum filter, // filter should be either GL_NEAREST or GL_LINEAR. Test this! + unsigned char *Ypal, unsigned char *Upal, unsigned char *Vpal) { - glGenTextures(1,Yhandle); - glGenTextures(1,Uhandle); - glGenTextures(1,Vhandle); - glBindTexture(GL_TEXTURE_2D,(*Yhandle)); + glGenTextures (1, Yhandle); + glGenTextures (1, Uhandle); + glGenTextures (1, Vhandle); + glBindTexture (GL_TEXTURE_2D, (*Yhandle)); #ifdef _WIN32 - glColorTableEXT(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Ypal); + glColorTableEXT (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Ypal); #else // Hopefully Linux - glColorTable(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Ypal); + glColorTable (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Ypal); #endif - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP); - tex_xsize = PowerOfTwo(Ywidth); - tex_ysize = PowerOfTwo(Yheight); - glTexImage2D(GL_TEXTURE_2D,0,GL_COLOR_INDEX8_EXT,PowerOfTwo(Ywidth),PowerOfTwo(Yheight),0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,NULL); - - glBindTexture(GL_TEXTURE_2D,(*Uhandle)); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + tex_xsize = PowerOfTwo (Ywidth); + tex_ysize = PowerOfTwo (Yheight); + glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, PowerOfTwo (Ywidth), + PowerOfTwo (Yheight), 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, NULL); + + glBindTexture (GL_TEXTURE_2D, (*Uhandle)); #ifdef _WIN32 - glColorTableEXT(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Upal); + glColorTableEXT (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Upal); #else // Hopefully Linux - glColorTable(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Upal); + glColorTable (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Upal); #endif - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP); - glTexImage2D(GL_TEXTURE_2D,0,GL_COLOR_INDEX8_EXT,PowerOfTwo(UVwidth),PowerOfTwo(UVheight),0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,NULL); - - glBindTexture(GL_TEXTURE_2D,(*Vhandle)); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, PowerOfTwo (UVwidth), + PowerOfTwo (UVheight), 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, NULL); + + glBindTexture (GL_TEXTURE_2D, (*Vhandle)); #ifdef _WIN32 - glColorTableEXT(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Vpal); + glColorTableEXT (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Vpal); #else // Hopefully Linux - glColorTable(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,Vpal); + glColorTable (GL_TEXTURE_2D, GL_RGB8, 256, GL_RGB, GL_UNSIGNED_BYTE, Vpal); #endif - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,filter); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP); - glTexImage2D(GL_TEXTURE_2D,0,GL_COLOR_INDEX8_EXT,PowerOfTwo(UVwidth),PowerOfTwo(UVheight),0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,NULL); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, PowerOfTwo (UVwidth), + PowerOfTwo (UVheight), 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, NULL); } -void LoadYUVPlanes(GLuint Yhandle, GLuint Uhandle, GLuint Vhandle, - unsigned int Ywidth, unsigned int Yheight, - unsigned int UVwidth, unsigned int UVheight, - unsigned char *Ydata, - unsigned char *Udata, - unsigned char *Vdata) +void +LoadYUVPlanes (GLuint Yhandle, GLuint Uhandle, GLuint Vhandle, + unsigned int Ywidth, unsigned int Yheight, + unsigned int UVwidth, unsigned int UVheight, + unsigned char *Ydata, unsigned char *Udata, unsigned char *Vdata) { - glActiveTextureARB(GL_TEXTURE0_ARB); - glBindTexture(GL_TEXTURE_2D,Yhandle); - glTexSubImage2D(GL_TEXTURE_2D,0,0,0,Ywidth,Yheight,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,Ydata); - glEnable(GL_TEXTURE_2D); - - glActiveTextureARB(GL_TEXTURE1_ARB); - glBindTexture(GL_TEXTURE_2D,Uhandle); - glTexSubImage2D(GL_TEXTURE_2D,0,0,0,UVwidth,UVheight,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,Udata); - glEnable(GL_TEXTURE_2D); - - glActiveTextureARB(GL_TEXTURE2_ARB); - glBindTexture(GL_TEXTURE_2D,Vhandle); - glTexSubImage2D(GL_TEXTURE_2D,0,0,0,UVwidth,UVheight,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,Vdata); - glEnable(GL_TEXTURE_2D); + glActiveTextureARB (GL_TEXTURE0_ARB); + glBindTexture (GL_TEXTURE_2D, Yhandle); + glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, Ywidth, Yheight, GL_COLOR_INDEX, + GL_UNSIGNED_BYTE, Ydata); + glEnable (GL_TEXTURE_2D); + + glActiveTextureARB (GL_TEXTURE1_ARB); + glBindTexture (GL_TEXTURE_2D, Uhandle); + glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, UVwidth, UVheight, GL_COLOR_INDEX, + GL_UNSIGNED_BYTE, Udata); + glEnable (GL_TEXTURE_2D); + + glActiveTextureARB (GL_TEXTURE2_ARB); + glBindTexture (GL_TEXTURE_2D, Vhandle); + glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, UVwidth, UVheight, GL_COLOR_INDEX, + GL_UNSIGNED_BYTE, Vdata); + glEnable (GL_TEXTURE_2D); } -void Initialize_Backend(unsigned int Ywidth, unsigned int Yheight, unsigned int UVwidth, unsigned int UVheight, GLenum filter) +void +Initialize_Backend (unsigned int Ywidth, unsigned int Yheight, + unsigned int UVwidth, unsigned int UVheight, GLenum filter) { - printf("Reinitializing register combiner backend with res %d x %d!\n", Ywidth, Yheight); + printf ("Reinitializing register combiner backend with res %d x %d!\n", + Ywidth, Yheight); //if (!GL_ARB_multitexture_Init()) exit(0); //if (!GL_EXT_paletted_texture_Init()) exit(0); //if (!GL_NV_register_combiners_Init()) exit(0); @@ -339,16 +404,20 @@ void Initialize_Backend(unsigned int Ywidth, unsigned int Yheight, unsigned int float bias[4]; float Uscale[4]; float Vscale[4]; - GenerateRGBTables(Ypal,Upal,Vpal,bias,Uscale,Vscale); - InitYUVPlanes(&Yhandle,&Uhandle,&Vhandle,Ywidth,Yheight,UVwidth,UVheight,filter,Ypal,Upal,Vpal); - SetupCombiners(); - SetConsts(bias,Uscale,Vscale); + + GenerateRGBTables (Ypal, Upal, Vpal, bias, Uscale, Vscale); + InitYUVPlanes (&Yhandle, &Uhandle, &Vhandle, Ywidth, Yheight, UVwidth, + UVheight, filter, Ypal, Upal, Vpal); + SetupCombiners (); + SetConsts (bias, Uscale, Vscale); } -void initialize(GLenum filter) { - glShadeModel(GL_SMOOTH); - glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST); - glClearColor(0.0f,0.0f,0.2f,1.0f); - Initialize_Backend(Ywidth,Yheight,UVwidth,UVheight,filter); +void +initialize (GLenum filter) +{ + glShadeModel (GL_SMOOTH); + glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); + glClearColor (0.0f, 0.0f, 0.2f, 1.0f); + Initialize_Backend (Ywidth, Yheight, UVwidth, UVheight, filter); } |