91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include <cstdlib>
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#include <cmath>
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#include <pugl/pugl.h>
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#include "pui.h"
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#include "textures/slider1-vert.c"
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#include "textures/slider1-vert-prelight.c"
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#include "textures/trough1-vertical.c"
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#include "textures/slider2-vert.c"
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#include "textures/slider2-vert-prelight.c"
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#include "textures/trough2-vertical.c"
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#include "textures/knob4.c"
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void PTextures::BindTexture(int texture, int width, int height, const unsigned char *data, int format)
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{
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glBindTexture(GL_TEXTURE_2D, tex[texture]);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, format, GL_UNSIGNED_BYTE, data);
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w[texture] = width;
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h[texture] = height;
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}
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void PTextures::InitTextures()
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{
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if (initialised) return;
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initialised = true;
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glGenTextures(TEX_END, this->tex);
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/* Texture buffer for generated textures */
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int size = 128;
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w[TEX_BACKTILE] = h[TEX_BACKTILE] = size;
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uint8_t *buffer = new uint8_t[size * size];
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/* Create background tile */
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for (int i = 0; i < size * size; i++) {
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/* Normalised noise */
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int r = 0;
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for (int j = 0; j < 4; j++) r += (rand() & 0x1F);
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buffer[i] = (r >> 2) + 0x30;
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}
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BindTexture(TEX_BACKTILE, size, size, buffer, GL_LUMINANCE);
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/* Create glow, focused at 1/3 down the window */
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int cx = size / 2;
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int cy = size / 3;
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for (int y = 0; y < size; y++) {
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for (int x = 0; x < size; x++) {
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float b = 196 - sqrtf((cx - x) * (cx - x) + (cy - y) * (cy - y)) * 256 / size;
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if (b < 0) b = 0;
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buffer[x + y * size] = b;
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}
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}
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BindTexture(TEX_BACKGLOW, size, size, buffer, GL_LUMINANCE);
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delete buffer;
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BindTexture(TEX_SLIDER1,
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slider1_vert.width,
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slider1_vert.height,
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slider1_vert.pixel_data);
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BindTexture(TEX_SLIDER1_PRE,
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slider1_vert_prelight.width,
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slider1_vert_prelight.height,
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slider1_vert_prelight.pixel_data);
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BindTexture(TEX_TROUGH1,
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trough1_vertical.width,
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trough1_vertical.height,
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trough1_vertical.pixel_data);
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BindTexture(TEX_SLIDER2,
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slider2_vert.width,
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slider2_vert.height,
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slider2_vert.pixel_data);
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BindTexture(TEX_SLIDER2_PRE,
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slider2_vert_prelight.width,
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slider2_vert_prelight.height,
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slider2_vert_prelight.pixel_data);
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BindTexture(TEX_TROUGH2,
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trough2_vertical.width,
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trough2_vertical.height,
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trough2_vertical.pixel_data);
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BindTexture(TEX_KNOB,
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knob4.width,
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knob4.height,
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knob4.pixel_data);
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}
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