From 704e9573dc4a4480edbf855ecd5ab7838398843d Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Wed, 20 Sep 2017 23:22:20 +0200
Subject: [PATCH] Use WIDTH and HEIGHT some places instead of 1280 and 720.
 narabu is still not ready for anything but 1280px wide, though.

---
 narabu.cpp | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/narabu.cpp b/narabu.cpp
index 2eb29dc..49afa9a 100644
--- a/narabu.cpp
+++ b/narabu.cpp
@@ -179,7 +179,7 @@ int main(int argc, char **argv)
 	check_error();
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 	check_error();
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_R16I, 1280, 720, 0, GL_RED_INTEGER, GL_SHORT, nullptr);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_R16I, WIDTH, HEIGHT, 0, GL_RED_INTEGER, GL_SHORT, nullptr);
 	check_error();
 
 	GLuint out_tex;
@@ -189,8 +189,8 @@ int main(int argc, char **argv)
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, 1280, 720, 0, GL_RED, GL_UNSIGNED_BYTE, nullptr);
-        //glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, 1280, 720, 0, GL_RED, GL_FLOAT, nullptr);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, WIDTH, HEIGHT, 0, GL_RED, GL_UNSIGNED_BYTE, nullptr);
+        //glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, WIDTH, HEIGHT, 0, GL_RED, GL_FLOAT, nullptr);
 	check_error();
 
 	GLint cum2sym_tex_pos = glGetUniformLocation(glsl_program_num, "cum2sym_tex");
@@ -262,8 +262,10 @@ int main(int argc, char **argv)
 
 #define PARALLEL_SLICES 1
 	steady_clock::time_point start = steady_clock::now();
-	for (int i = 0; i < 1000; ++i)
-		glDispatchCompute(1, (45+PARALLEL_SLICES-1)/PARALLEL_SLICES, 1);
+	for (int i = 0; i < 1000; ++i) {
+		unsigned num_slices = (WIDTH/8)*(HEIGHT/8)/320;
+		glDispatchCompute(1, (num_slices+PARALLEL_SLICES-1)/PARALLEL_SLICES, 1);
+	}
 	check_error();
 	glFinish();
 	steady_clock::time_point now = steady_clock::now();
@@ -299,7 +301,7 @@ int main(int argc, char **argv)
 	}
 	printf("\n");
 
-	unsigned char *data = new unsigned char[1280 * 720];
+	unsigned char *data = new unsigned char[WIDTH * HEIGHT];
 	glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, data);
 	check_error();
 	printf("%d err=0x%x bufsize=%zu\n", __LINE__, glGetError(), coded.size());
@@ -308,7 +310,7 @@ int main(int argc, char **argv)
 	for (int k = 0; k < 4; ++k) {
 		for (int y = 0; y < 8; ++y) {
 			for (int x = 0; x < 8; ++x) {
-				printf("%3d ", data[y * 1280 + x + k*8]);
+				printf("%3d ", data[y * WIDTH + x + k*8]);
 			}
 			printf("\n");
 		}
@@ -319,8 +321,8 @@ int main(int argc, char **argv)
 	for (int k = 0; k < 4; ++k) {
 		for (int y = 0; y < 8; ++y) {
 			for (int x = 0; x < 8; ++x) {
-				//printf("%5.2f ", data[(y+8) * 1280 + x + (1272-k*8)]);
-				printf("%3d ", data[y * 1280 + x + k*8]);
+				//printf("%5.2f ", data[(y+8) * WIDTH + x + (1272-k*8)]);
+				printf("%3d ", data[y * WIDTH + x + k*8]);
 			}
 			printf("\n");
 		}
@@ -330,10 +332,10 @@ int main(int argc, char **argv)
 #endif
 
 	FILE *fp = fopen("narabu.pgm", "wb");
-	fprintf(fp, "P5\n1280 720\n255\n");
-	for (int y = 0; y < 720; ++y) {
-		for (int x = 0; x < 1280; ++x) {
-			int k = lrintf(data[y * 1280 + x]);
+	fprintf(fp, "P5\n%d %d\n255\n", WIDTH, HEIGHT);
+	for (int y = 0; y < HEIGHT; ++y) {
+		for (int x = 0; x < WIDTH; ++x) {
+			int k = lrintf(data[y * WIDTH + x]);
 			if (k < 0) k = 0;
 			if (k > 255) k = 255;
 			putc(k, fp);
@@ -341,7 +343,7 @@ int main(int argc, char **argv)
 	}
 	fclose(fp);
 
-	int16_t *coeff_data = new int16_t[1280 * 720];
+	int16_t *coeff_data = new int16_t[WIDTH * HEIGHT];
         glBindTexture(GL_TEXTURE_2D, coeff_tex);
 	check_error();
 	glGetTexImage(GL_TEXTURE_2D, 0, GL_RED_INTEGER, GL_SHORT, coeff_data);
@@ -349,7 +351,7 @@ int main(int argc, char **argv)
 	for (int k = 0; k < 4; ++k) {
 		for (int y = 0; y < 8; ++y) {
 			for (int x = 0; x < 8; ++x) {
-				printf("%3d ", coeff_data[y * 1280 + x + k*8]);
+				printf("%3d ", coeff_data[y * WIDTH + x + k*8]);
 			}
 			printf("\n");
 		}
-- 
2.39.2