29 files changed, 1185 insertions, 0 deletions
diff --git a/src/model/exp004base.c b/src/model/exp004base.c new file mode 100644 index 0000000..56a20e5 --- a/dev/null +++ b/src/model/exp004base.c @@ -0,0 +1,107 @@ +/* I seem to need this for glGenBuffers as per + http://www.gamedev.net/community/forums/topic.asp?topic_id=422358 */ +#define GL_GLEXT_PROTOTYPES + +#include "exp004base.h" +#include "../view/exp004state0.h" +#include <GL/glut.h> +#include <stdio.h> +#include <string.h> + +void +exp004base (void) +{ + /* + * A simple alias to make the code more readable. + */ + EXP004STATE* S = &exp004state0; + + /* + * This implementation can be improved by mapping the video memory + * directly rather than loading into system memory and then copying + * into video memory. + */ + + FILE* coords = + fopen ("/home/don/exp004/test/run20090514/run20090514.coords", "r"); + int i = 0; + + /* + * Initialize the bounding box of the points. + */ + S->bb.min_x = 0.0; + S->bb.max_x = 0.0; + S->bb.min_y = 0.0; + S->bb.max_y = 0.0; + + for (i = 0; i < ROWS; i++) + { + fscanf (coords, "%s %f %f\n", + S->gi_data[i], + &S->base_vertices_data[i][0], + &S->base_vertices_data[i][1]); + + if (S->base_vertices_data[i][0] < S->bb.min_x) + S->bb.min_x = S->base_vertices_data[i][0]; + if (S->base_vertices_data[i][0] > S->bb.max_x) + S->bb.max_x = S->base_vertices_data[i][0]; + if (S->base_vertices_data[i][1] < S->bb.min_y) + S->bb.min_y = S->base_vertices_data[i][1]; + if (S->base_vertices_data[i][1] > S->bb.max_y) + S->bb.max_y = S->base_vertices_data[i][1]; + + /* + * Deselected by default. + */ + S->selection[i] = false; + + S->base_colors_data[i][0] = DEFAULT_COLOR_R; + S->base_colors_data[i][1] = DEFAULT_COLOR_G; + S->base_colors_data[i][2] = DEFAULT_COLOR_B; + } + fclose (coords); + + /* + * Find the largest axis and use it to setup the projection. This + * is done to preserve the aspect ratio. The aspect ratio should be + * preserved since relative distance is a meaningful indicator in + * the map. + */ + + // Min of min x or min y. + if (S->bb.min_x <= S->bb.min_y) + S->ortho_min = S->bb.min_x; + else + S->ortho_min = S->bb.min_y; + S->ortho_min--; + + // Max of max x or max y. + if (S->bb.max_x >= S->bb.max_y) + S->ortho_max = S->bb.max_x; + else + S->ortho_max = S->bb.max_y; + S->ortho_max++; + + // Invert the y coordinate to match up with the LGL Java viewer. + for (i = 0; i < ROWS; i++) + S->base_vertices_data[i][1] = + S->ortho_max - S->base_vertices_data[i][1]; + + S->points = i; + + glGenBuffers (2, S->buffers); + + glBindBuffer (GL_ARRAY_BUFFER, S->buffers[BASE_VERTICES]); + glVertexPointer (2, GL_FLOAT, 0, 0); + glBufferData (GL_ARRAY_BUFFER, + sizeof (S->base_vertices_data), S->base_vertices_data, + GL_STATIC_DRAW); + + glBindBuffer (GL_ARRAY_BUFFER, S->buffers[BASE_COLORS]); + glColorPointer (3, GL_FLOAT, 0, 0); + glBufferData (GL_ARRAY_BUFFER, + sizeof (S->base_colors_data), S->base_colors_data, + GL_STATIC_DRAW); + + return; +} |
