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-rw-r--r--sys/glsink/regcomb_yuvrgb.c424
1 files changed, 0 insertions, 424 deletions
diff --git a/sys/glsink/regcomb_yuvrgb.c b/sys/glsink/regcomb_yuvrgb.c
deleted file mode 100644
index 151b8e18..00000000
--- a/sys/glsink/regcomb_yuvrgb.c
+++ /dev/null
@@ -1,424 +0,0 @@
-// these includes don't do a lot in Linux, they are more needed in Win32 (for the OpenGL function call pointers)
-// but they are used at least for checking if the necessary extensions are present
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "ARB_multitexture.h"
-#include "NV_register_combiners.h"
-#include "EXT_paletted_texture.h"
-
-/***********************************************************************************************
- INTERESTING PART: *
- handles initialization of the Nvidia register combiners for YUV->RGB conversion.
- This code was created by Jens Schneider <schneider@glhint.de>
- ***********************************************************************************************/
-
-GLuint Yhandle;
-GLuint Uhandle;
-GLuint Vhandle;
-unsigned char *YPlane;
-unsigned char *UPlane;
-unsigned char *VPlane;
-
-// YUV 4:2:2 example
-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
-{
- 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);
-}
-
-/*
- * 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_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_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_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_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)
-{
- 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)
-{
- 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);
-}
-
-
-// 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)
-{
- 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);
-#else // Hopefully Linux
- 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));
-#ifdef _WIN32
- 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);
-#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));
-#ifdef _WIN32
- 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);
-#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);
-}
-
-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);
-}
-
-
-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);
- //if (!GL_ARB_multitexture_Init()) exit(0);
- //if (!GL_EXT_paletted_texture_Init()) exit(0);
- //if (!GL_NV_register_combiners_Init()) exit(0);
- unsigned char Ypal[768];
- unsigned char Upal[768];
- unsigned char Vpal[768];
- 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);
-}
-
-
-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);
-}
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