263 lines
6.9 KiB
C
263 lines
6.9 KiB
C
#include "pch.c"
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#pragma hdrstop
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#define WWIDTH (2*TWIDTH+GAP)
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#define WHEIGHT (4*THEIGHT+3*GAP)
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#define TWIDTH 128
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#define THEIGHT 128
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#define GAP 16
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static int wwidth = WWIDTH;
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static int wheight = WHEIGHT;
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static int twidth = TWIDTH;
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static int theight = THEIGHT;
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static int gap = GAP;
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static char *tex1_file = "1.rgb";
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static char *tex2_file = "2.rgb";
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static AUX_RGBImageRec *tex1, *tex2;
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static BYTE tex1d1[TWIDTH*3], tex1d2[TWIDTH*3];
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#define NTEXID 3
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static GLuint texids[NTEXID+1];
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static GLboolean texres[NTEXID];
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static GLfloat texpri[NTEXID];
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static void TexPoly(int x, int y)
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{
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glBegin(GL_POLYGON);
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glTexCoord2i(0, 0);
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glVertex2i(x, y);
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glTexCoord2i(1, 0);
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glVertex2i(x+twidth-1, y);
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glTexCoord2i(1, 1);
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glVertex2i(x+twidth-1, y+theight-1);
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glTexCoord2i(0, 1);
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glVertex2i(x, y+theight-1);
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glEnd();
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}
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static void Test(void)
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{
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int i;
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GLint res;
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GLfloat pri;
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GLboolean retval;
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int x1, x2, y;
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x2 = 0;
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x1 = x2+twidth+gap;
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y = 0;
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glGenTextures(NTEXID, texids);
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for (i = 0; i < NTEXID; i++)
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{
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// printf("Texture id %d is %d\n", i, texids[i]);
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}
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// Should fail for last
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for (i = 0; i < NTEXID+1; i++)
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{
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// printf("IsTexture %d is %d\n", i, glIsTexture(texids[i]));
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}
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glDeleteTextures(1, &texids[NTEXID-1]);
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// Should fail for last two
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for (i = 0; i < NTEXID+1; i++)
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{
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// printf("IsTexture %d is %d\n", i, glIsTexture(texids[i]));
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}
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// Should fail because these are all unbound right now
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retval = glAreTexturesResident(NTEXID, texids, texres);
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// printf("AreTexturesResident %d\n", retval);
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glBindTexture(GL_TEXTURE_2D, texids[0]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, 3, tex1->sizeX, tex1->sizeY, 0, GL_RGB,
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GL_UNSIGNED_BYTE, tex1->data);
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glEnable(GL_TEXTURE_2D);
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glGetTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, &pri);
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// printf("2D Priority is %f\n", pri);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.5f);
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glGetTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, &pri);
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// printf("2D Priority is %f\n", pri);
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glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_RESIDENT, &res);
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// printf("2D Residency is %d\n", res);
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retval = glAreTexturesResident(1, texids, texres);
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// printf("AreTexturesResident %d\n", retval);
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for (i = 0; i < 1; i++)
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{
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// printf("Residency %d is %d\n", i, texres[i]);
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}
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glClear(GL_COLOR_BUFFER_BIT);
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TexPoly(x2, y);
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glDisable(GL_TEXTURE_2D);
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glBindTexture(GL_TEXTURE_1D, texids[1]);
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glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexImage1D(GL_TEXTURE_1D, 0, 3, TWIDTH, 0, GL_RGB,
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GL_UNSIGNED_BYTE, tex1d1);
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glEnable(GL_TEXTURE_1D);
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glGetTexParameterfv(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, &pri);
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// printf("1D Priority is %f\n", pri);
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glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, 0.5f);
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glGetTexParameterfv(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, &pri);
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// printf("1D Priority is %f\n", pri);
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glGetTexParameteriv(GL_TEXTURE_1D, GL_TEXTURE_RESIDENT, &res);
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// printf("1D Residency is %d\n", res);
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TexPoly(x1, y);
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retval = glAreTexturesResident(2, texids, texres);
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// printf("AreTexturesResident %d\n", retval);
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for (i = 0; i < 2; i++)
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{
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// printf("Residency %d is %d\n", i, texres[i]);
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}
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glBindTexture(GL_TEXTURE_2D, texids[2]);
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texpri[0] = 0.25f;
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texpri[1] = 0.4f;
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texpri[2] = 0.7f;
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glPrioritizeTextures(NTEXID, texids, texpri);
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glGetTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, &pri);
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// printf("2D Priority is %f\n", pri);
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glGetTexParameterfv(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, &pri);
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// printf("1D Priority is %f\n", pri);
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retval = glAreTexturesResident(NTEXID, texids, texres);
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// printf("AreTexturesResident %d\n", retval);
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for (i = 0; i < NTEXID; i++)
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{
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// printf("Residency %d is %d\n", i, texres[i]);
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}
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glBindTexture(GL_TEXTURE_2D, texids[0]);
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y += theight+gap;
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glPixelStorei(GL_UNPACK_ROW_LENGTH, tex2->sizeX);
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glDisable(GL_TEXTURE_1D);
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glEnable(GL_TEXTURE_2D);
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glTexSubImage2D(GL_TEXTURE_2D, 0, tex1->sizeX/4, tex1->sizeY/4,
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tex1->sizeX/2, tex1->sizeY/2, GL_RGB, GL_UNSIGNED_BYTE,
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tex2->data);
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TexPoly(x2, y);
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_TEXTURE_1D);
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glTexSubImage1D(GL_TEXTURE_1D, 0, TWIDTH/4, TWIDTH/2,
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GL_RGB, GL_UNSIGNED_BYTE, tex1d2);
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TexPoly(x1, y);
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y += theight+gap;
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glDisable(GL_TEXTURE_1D);
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glEnable(GL_TEXTURE_2D);
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glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, x2, 0,
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tex1->sizeX, tex1->sizeY, 0);
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TexPoly(x2, y);
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_TEXTURE_1D);
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glCopyTexImage1D(GL_TEXTURE_1D, 0, GL_RGB, x1, 0,
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TWIDTH, 0);
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TexPoly(x1, y);
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y += theight+gap;
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glDisable(GL_TEXTURE_1D);
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glEnable(GL_TEXTURE_2D);
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glCopyTexSubImage2D(GL_TEXTURE_2D, 0, tex1->sizeX/4, tex1->sizeY/4,
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x2+twidth/4, theight+theight/4+gap,
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tex1->sizeX/2, tex1->sizeY/2);
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TexPoly(x2, y);
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_TEXTURE_1D);
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glCopyTexSubImage1D(GL_TEXTURE_1D, 0, TWIDTH/4,
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x1+TWIDTH/4, theight+gap,
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TWIDTH/2);
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TexPoly(x1, y);
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glFlush();
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glDeleteTextures(NTEXID-1, texids);
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}
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static void Reshape(GLsizei w, GLsizei h)
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{
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glViewport(0, 0, w, h);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0, w, 0, h, -1, 1);
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glMatrixMode(GL_MODELVIEW);
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wwidth = w;
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wheight = h;
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}
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static void Init(void)
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{
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int i;
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tex1 = auxRGBImageLoad(tex1_file);
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if (tex1 == NULL)
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{
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printf("Unable to load '%s'\n", tex1_file);
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exit(1);
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}
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// printf("tex1 %d,%d\n", tex1->sizeX, tex1->sizeY);
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tex2 = auxRGBImageLoad(tex2_file);
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if (tex2 == NULL)
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{
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printf("Unable to load '%s'\n", tex2_file);
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exit(1);
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}
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// printf("tex2 %d,%d\n", tex2->sizeX, tex2->sizeY);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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for (i = 0; i < TWIDTH; i++)
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{
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tex1d1[i*3+2] = (i*256/TWIDTH);
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tex1d2[i*3] = (i*256/TWIDTH);
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}
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// glDisable(GL_DITHER);
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}
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static void OglBounds(int *w, int *h)
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{
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*w = wwidth;
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*h = wheight;
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}
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static void OglDraw(int w, int h)
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{
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Init();
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Reshape(w, h);
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Test();
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}
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OglModule oglmod_etex =
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{
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"etex",
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NULL,
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OglBounds,
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NULL,
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OglDraw
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};
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