diff options
Diffstat (limited to 'src/render.c')
| -rw-r--r-- | src/render.c | 465 |
1 files changed, 0 insertions, 465 deletions
diff --git a/src/render.c b/src/render.c deleted file mode 100644 index 666b2f9..0000000 --- a/src/render.c +++ /dev/null @@ -1,465 +0,0 @@ -/* -* BSD 2-Clause “Simplified” License -* Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com -* All rights reserved. -*/ - -inline void render_clear() -{ - glClearColor(255/255.0, 255/255.0, 255/255.0, 1.0); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); -} - -inline void render_set_rotation(float32 rotation, float32 x, float32 y, s32 depth) -{ - glRotatef(rotation, x, y, depth); -} - -inline void set_render_depth(s32 depth) -{ - render_depth = depth; -} - -void render_image(image *image, s32 x, s32 y, s32 width, s32 height) -{ - assert(image); - if (image->loaded) - { - glBindTexture(GL_TEXTURE_2D, image->textureID); - glEnable(GL_TEXTURE_2D); - glBegin(GL_QUADS); - glColor4f(1., 1., 1., 1.); - glTexCoord2i(0, 0); glVertex3i(x, y, render_depth); - glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth); - glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth); - glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth); - glEnd(); - - glDisable(GL_TEXTURE_2D); - } -} - -void render_image_tint(image *image, s32 x, s32 y, s32 width, s32 height, color tint) -{ - assert(image); - if (image->loaded) - { - glBindTexture(GL_TEXTURE_2D, image->textureID); - glEnable(GL_TEXTURE_2D); - glBegin(GL_QUADS); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - glTexCoord2i(0, 0); glVertex3i(x, y, render_depth); - glTexCoord2i(0, 1); glVertex3i(x, y+height, render_depth); - glTexCoord2i(1, 1); glVertex3i(x+width, y+height, render_depth); - glTexCoord2i(1, 0); glVertex3i(x+width, y, render_depth); - glEnd(); - - glDisable(GL_TEXTURE_2D); - } -} - -s32 render_text_ellipsed(font *font, s32 x, s32 y, s32 maxw, char *text, color tint) -{ - if (!font->loaded) - return 0; - - glEnable(GL_TEXTURE_2D); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - - char *ellipse = "..."; - bool in_ellipse = false; - - s32 x_ = x; - utf8_int32_t ch; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - glyph g = font->glyphs[ch]; - - glBindTexture(GL_TEXTURE_2D, g.textureID); - glBegin(GL_QUADS); - - s32 width = g.width; - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - s32 y_ = y + font->px_h + g.yoff; - s32 x_to_render = x_ + (lsb*font->scale); - - glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth); - glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth); - glTexCoord2i(1, 1); glVertex3i(x_to_render+g.width,y_+g.height, render_depth); - glTexCoord2i(1, 0); glVertex3i(x_to_render+g.width,y_, render_depth); - - glEnd(); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x_ += (advance*font->scale)+(kern*font->scale); - - if (!in_ellipse && (x_-x) > maxw-(font->glyphs['.'].width*3)) - { - in_ellipse = true; - text = ellipse; - } - } - - glDisable(GL_TEXTURE_2D); - - return maxw; -} - -s32 render_text(font *font, s32 x, s32 y, char *text, color tint) -{ - if (!font->loaded) - return 0; - - glEnable(GL_TEXTURE_2D); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - - s32 x_ = x; - utf8_int32_t ch; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - glyph g = font->glyphs[ch]; - - glBindTexture(GL_TEXTURE_2D, g.textureID); - glBegin(GL_QUADS); - - s32 width = g.width; - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - s32 y_ = y + font->px_h + g.yoff; - s32 x_to_render = x_ + (lsb*font->scale); - - glTexCoord2i(0, 0); glVertex3i(x_to_render,y_, render_depth); - glTexCoord2i(0, 1); glVertex3i(x_to_render,y_+g.height, render_depth); - glTexCoord2i(1, 1); glVertex3i(x_to_render+g.width,y_+g.height, render_depth); - glTexCoord2i(1, 0); glVertex3i(x_to_render+g.width,y_, render_depth); - - glEnd(); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x_ += (advance*font->scale)+(kern*font->scale); - } - - glDisable(GL_TEXTURE_2D); - - return x_ - x; -} - -s32 render_text_cutoff(font *font, s32 x, s32 y, char *text, color tint, u16 cutoff_width) -{ - if (!font->loaded) - return 0; - - glEnable(GL_TEXTURE_2D); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - - s32 x_ = x; - s32 y_ = y; - bool is_new_line = false; - utf8_int32_t ch; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - if (ch == '\n') - { - x_ = x; - y_ += font->size; - is_new_line = true; - continue; - } - - if (is_new_line && ch == ' ') - { - is_new_line = false; - continue; - } - else if (is_new_line && ch != ' ') - { - is_new_line = false; - } - - - glyph g = font->glyphs[ch]; - - glBindTexture(GL_TEXTURE_2D, g.textureID); - glBegin(GL_QUADS); - - s32 width = g.width; - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - s32 y__ = y_ + font->px_h + g.yoff; - s32 x_to_render = x_ + (lsb*font->scale); - - glTexCoord2i(0, 0); glVertex3i(x_to_render,y__, render_depth); - glTexCoord2i(0, 1); glVertex3i(x_to_render,y__+g.height, render_depth); - glTexCoord2i(1, 1); glVertex3i(x_to_render+g.width,y__+g.height, render_depth); - glTexCoord2i(1, 0); glVertex3i(x_to_render+g.width,y__, render_depth); - - glEnd(); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x_ += (advance*font->scale)+(kern*font->scale); - - if (x_ > x+cutoff_width) - { - x_ = x; - y_ += font->size; - is_new_line = true; - } - } - - glDisable(GL_TEXTURE_2D); - - return (y_ - y) + font->size; - -} - -s32 calculate_cursor_position(font *font, char *text, s32 click_x) -{ - if (!font->loaded) - return 0; - - s32 x = 0; - s32 index = 0; - utf8_int32_t ch; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - - glyph g = font->glyphs[ch]; - - s32 width = g.width; - s32 width_next = font->glyphs[ch_next].width; - - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x += (advance*font->scale)+(kern*font->scale); - - if (x - (width_next/5) > click_x) - { - return index; - } - - ++index; - } - - return index; -} - -s32 calculate_text_width_from_upto(font *font, char *text, s32 from, s32 index) -{ - if (!font->loaded) - return 0; - - s32 x = 0; - utf8_int32_t ch; - s32 i = 0; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (index == i) return x; - - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - glyph g = font->glyphs[ch]; - s32 width = g.width; - - if (i >= from) - { - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x += (advance*font->scale)+(kern*font->scale); - } - - i++; - } - - return x; -} - -s32 calculate_text_width_upto(font *font, char *text, s32 index) -{ - if (!font->loaded) - return 0; - - s32 x = 0; - utf8_int32_t ch; - s32 i = 0; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (index == i) return x; - - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - glyph g = font->glyphs[ch]; - s32 width = g.width; - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x += (advance*font->scale)+(kern*font->scale); - - i++; - } - - return x; -} - -s32 calculate_text_width(font *font, char *text) -{ - if (!font->loaded) - return 0; - - s32 x = 0; - utf8_int32_t ch; - while((text = utf8codepoint(text, &ch)) && ch) - { - if (ch == 9) ch = 32; - utf8_int32_t ch_next; - utf8codepoint(text, &ch_next); - if (ch < TEXT_CHARSET_START || ch > TEXT_CHARSET_END) - { - ch = 0x3f; - } - - glyph g = font->glyphs[ch]; - s32 width = g.width; - - int advance, lsb, kern; - stbtt_GetCodepointHMetrics(&font->info, ch, &advance, &lsb); - - /* add kerning */ - kern = stbtt_GetCodepointKernAdvance(&font->info, ch, ch_next); - x += (advance*font->scale)+(kern*font->scale); - } - - return x; -} - -void render_triangle(s32 x, s32 y, s32 w, s32 h, color tint) -{ - glBegin(GL_TRIANGLES); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - glVertex3i(x+(w/2), y+h, render_depth); - glVertex3i(x, y, render_depth); - glVertex3i(x+w, y, render_depth); - glEnd(); -} - -void render_rectangle(s32 x, s32 y, s32 width, s32 height, color tint) -{ - glBegin(GL_QUADS); - glColor4f(tint.r/255.0f, tint.g/255.0f, tint.b/255.0f, tint.a/255.0f); - glVertex3i(x, y, render_depth); - glVertex3i(x, y+height, render_depth); - glVertex3i(x+width, y+height, render_depth); - glVertex3i(x+width, y, render_depth); - glEnd(); -} - -void render_rectangle_tint(s32 x, s32 y, s32 width, s32 height, color tint[4]) -{ - glBegin(GL_QUADS); - glColor4f(tint[0].r/255.0f, tint[0].g/255.0f, tint[0].b/255.0f, tint[0].a/255.0f); - glVertex3i(x, y, render_depth); - glColor4f(tint[1].r/255.0f, tint[1].g/255.0f, tint[1].b/255.0f, tint[1].a/255.0f); - glVertex3i(x, y+height, render_depth); - glColor4f(tint[2].r/255.0f, tint[2].g/255.0f, tint[2].b/255.0f, tint[2].a/255.0f); - glVertex3i(x+width, y+height, render_depth); - glColor4f(tint[3].r/255.0f, tint[3].g/255.0f, tint[3].b/255.0f, tint[3].a/255.0f); - glVertex3i(x+width, y, render_depth); - glEnd(); -} - -void render_rectangle_outline(s32 x, s32 y, s32 width, s32 height, u16 outline_w, color tint) -{ - // left - render_rectangle(x, y, outline_w, height, tint); - // right - render_rectangle(x+width-outline_w, y, outline_w, height, tint); - // top - render_rectangle(x+outline_w, y, width-(outline_w*2), outline_w, tint); - // bottom - render_rectangle(x+outline_w, y+height-outline_w, width-(outline_w*2), outline_w, tint); -} - -void render_set_scissor(platform_window *window, s32 x, s32 y, s32 w, s32 h) -{ - glEnable(GL_SCISSOR_TEST); - glScissor(x-1, window->height-h-y-1, w+1, h+1); -} - -vec4 render_get_scissor() -{ - vec4 vec; - glGetIntegerv(GL_SCISSOR_BOX, (GLint*)(&vec)); - vec.x += 1; - vec.y += 1; - vec.w -= 1; - vec.h -= 1; - return vec; -} - -void render_reset_scissor() -{ - glDisable(GL_SCISSOR_TEST); -}
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