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xenia-canary/src/xenia/ui/microprofile_drawer.cc

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/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2015 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include "xenia/ui/microprofile_drawer.h"
#include <algorithm>
#include "xenia/base/math.h"
#include "xenia/ui/window.h"
namespace xe {
namespace ui {
const int kMaxVertices = 16 << 10;
const int kFontTextureWidth = 1024;
const int kFontTextureHeight = 9;
const int kFontCharWidth = 5;
const int kFontCharHeight = 8;
const uint8_t kFontData[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x78, 0x38, 0x78,
0x7c, 0x7c, 0x3c, 0x44, 0x38, 0x04, 0x44, 0x40, 0x44, 0x44, 0x38, 0x78,
0x38, 0x78, 0x38, 0x7c, 0x44, 0x44, 0x44, 0x44, 0x44, 0x7c, 0x00, 0x00,
0x40, 0x00, 0x04, 0x00, 0x18, 0x00, 0x40, 0x10, 0x08, 0x40, 0x30, 0x00,
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0x04, 0x38, 0x10, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x10, 0x7c, 0x08,
0x08, 0x54, 0x40, 0x20, 0x04, 0x44, 0x00, 0x30, 0x10, 0x18, 0x00, 0x00,
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0x44, 0x78, 0x38, 0x10, 0x44, 0x44, 0x54, 0x10, 0x10, 0x10, 0x00, 0x04,
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0x10, 0x00, 0x28, 0x38, 0x10, 0x20, 0x00, 0x20, 0x04, 0x10, 0x7c, 0x00,
0x7c, 0x00, 0x10, 0x00, 0x00, 0x20, 0x00, 0x04, 0x10, 0x5c, 0x40, 0x10,
0x04, 0x00, 0x00, 0x60, 0x10, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x7c, 0x44, 0x40, 0x44, 0x40, 0x40, 0x4c, 0x44,
0x10, 0x04, 0x50, 0x40, 0x44, 0x4c, 0x44, 0x40, 0x54, 0x50, 0x04, 0x10,
0x44, 0x44, 0x54, 0x28, 0x10, 0x20, 0x00, 0x3c, 0x44, 0x40, 0x44, 0x7c,
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0x78, 0x3c, 0x3c, 0x3c, 0x20, 0x04, 0x44, 0x38, 0x48, 0x44, 0x38, 0x44,
0x44, 0x38, 0x78, 0x3c, 0x40, 0x78, 0x0c, 0x34, 0x10, 0x6c, 0x44, 0x04,
0x7c, 0x00, 0x38, 0x38, 0x7c, 0x38, 0x08, 0x38, 0x38, 0x20, 0x38, 0x70,
0x10, 0x00, 0x28, 0x10, 0x00, 0x34, 0x00, 0x08, 0x10, 0x10, 0x00, 0x20,
0x00, 0x10, 0x00, 0x00, 0x20, 0x04, 0x00, 0x20, 0x10, 0x3c, 0x70, 0x00,
0x1c, 0x00, 0x7c, 0x1c, 0x10, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
MicroprofileDrawer::MicroprofileDrawer(xe::ui::Window* window)
: window_(window),
graphics_context_(window->context()),
vertices_(kMaxVertices) {
SetupFont();
}
void MicroprofileDrawer::SetupFont() {
// Setup font lookup table.
for (uint32_t i = 0; i < xe::countof(font_description_.char_offsets); ++i) {
font_description_.char_offsets[i] = 206;
}
for (uint32_t i = 'A'; i <= 'Z'; ++i) {
font_description_.char_offsets[i] = (i - 'A') * 8 + 1;
}
for (uint32_t i = 'a'; i <= 'z'; ++i) {
font_description_.char_offsets[i] = (i - 'a') * 8 + 217;
}
for (uint32_t i = '0'; i <= '9'; ++i) {
font_description_.char_offsets[i] = (i - '0') * 8 + 433;
}
for (uint32_t i = '!'; i <= '/'; ++i) {
font_description_.char_offsets[i] = (i - '!') * 8 + 513;
}
for (uint32_t i = ':'; i <= '@'; ++i) {
font_description_.char_offsets[i] = (i - ':') * 8 + 625 + 8;
}
for (uint32_t i = '['; i <= '_'; ++i) {
font_description_.char_offsets[i] = (i - '[') * 8 + 681 + 8;
}
for (uint32_t i = '{'; i <= '~'; ++i) {
font_description_.char_offsets[i] = (i - '{') * 8 + 721 + 8;
}
// Unpack font bitmap into an RGBA texture.
const int kUnpackedSize = kFontTextureWidth * kFontTextureHeight * 4;
uint32_t unpacked[kUnpackedSize];
int idx = 0;
int end = kFontTextureWidth * kFontTextureHeight / 8;
for (int i = 0; i < end; i++) {
uint8_t b = kFontData[i];
for (int j = 0; j < 8; ++j) {
unpacked[idx++] = b & 0x80 ? 0xFFFFFFFFu : 0;
b <<= 1;
}
}
font_texture_ = graphics_context_->immediate_drawer()->CreateTexture(
kFontTextureWidth, kFontTextureHeight, ImmediateTextureFilter::kNearest,
false, reinterpret_cast<uint8_t*>(unpacked));
}
MicroprofileDrawer::~MicroprofileDrawer() = default;
void MicroprofileDrawer::Begin() {
graphics_context_->immediate_drawer()->Begin(window_->scaled_width(),
window_->scaled_height());
}
void MicroprofileDrawer::End() {
Flush();
graphics_context_->immediate_drawer()->End();
}
ImmediateVertex* MicroprofileDrawer::BeginVertices(
ImmediatePrimitiveType primitive_type, int count) {
if (vertex_count_ + count > vertices_.size() ||
primitive_type != current_primitive_type_) {
Flush();
}
current_primitive_type_ = primitive_type;
auto ptr = vertices_.data() + vertex_count_;
vertex_count_ += count;
return ptr;
}
void MicroprofileDrawer::EndVertices() {}
void MicroprofileDrawer::Flush() {
auto drawer = graphics_context_->immediate_drawer();
if (!vertex_count_) {
return;
}
ImmediateDrawBatch batch;
batch.vertices = vertices_.data();
batch.vertex_count = vertex_count_;
drawer->BeginDrawBatch(batch);
ImmediateDraw draw;
draw.primitive_type = current_primitive_type_;
draw.count = vertex_count_;
draw.texture_handle = font_texture_->handle;
draw.restrict_texture_samples = true;
drawer->Draw(draw);
drawer->EndDrawBatch();
vertex_count_ = 0;
}
#define Q0(d, member, v) d[0].member = v
#define Q1(d, member, v) \
d[1].member = v; \
d[3].member = v
#define Q2(d, member, v) d[4].member = v
#define Q3(d, member, v) \
d[2].member = v; \
d[5].member = v
void MicroprofileDrawer::DrawBox(int x0, int y0, int x1, int y1, uint32_t color,
BoxType type) {
auto v = BeginVertices(ImmediatePrimitiveType::kTriangles, 6);
if (type == BoxType::kFlat) {
color =
((color & 0xff) << 16) | ((color >> 16) & 0xff) | (0xff00ff00 & color);
Q0(v, x, static_cast<float>(x0));
Q0(v, y, static_cast<float>(y0));
Q0(v, color, color);
Q0(v, u, 2.0f);
Q0(v, v, 2.0f);
Q1(v, x, static_cast<float>(x1));
Q1(v, y, static_cast<float>(y0));
Q1(v, color, color);
Q1(v, u, 2.0f);
Q1(v, v, 2.0f);
Q2(v, x, static_cast<float>(x1));
Q2(v, y, static_cast<float>(y1));
Q2(v, color, color);
Q2(v, u, 2.0f);
Q2(v, v, 2.0f);
Q3(v, x, static_cast<float>(x0));
Q3(v, y, static_cast<float>(y1));
Q3(v, color, color);
Q3(v, u, 2.0f);
Q3(v, v, 2.0f);
} else {
uint32_t r = 0xff & (color >> 16);
uint32_t g = 0xff & (color >> 8);
uint32_t b = 0xff & color;
uint32_t nMax = std::max(std::max(std::max(r, g), b), 30u);
uint32_t nMin = std::min(std::min(std::min(r, g), b), 180u);
uint32_t r0 = 0xff & ((r + nMax) / 2);
uint32_t g0 = 0xff & ((g + nMax) / 2);
uint32_t b0 = 0xff & ((b + nMax) / 2);
uint32_t r1 = 0xff & ((r + nMin) / 2);
uint32_t g1 = 0xff & ((g + nMin) / 2);
uint32_t b1 = 0xff & ((b + nMin) / 2);
uint32_t color0 = (r0 << 0) | (g0 << 8) | (b0 << 16) | (0xff000000 & color);
uint32_t color1 = (r1 << 0) | (g1 << 8) | (b1 << 16) | (0xff000000 & color);
Q0(v, x, static_cast<float>(x0));
Q0(v, y, static_cast<float>(y0));
Q0(v, color, color0);
Q0(v, u, 2.0f);
Q0(v, v, 2.0f);
Q1(v, x, static_cast<float>(x1));
Q1(v, y, static_cast<float>(y0));
Q1(v, color, color0);
Q1(v, u, 3.0f);
Q1(v, v, 2.0f);
Q2(v, x, static_cast<float>(x1));
Q2(v, y, static_cast<float>(y1));
Q2(v, color, color1);
Q2(v, u, 3.0f);
Q2(v, v, 3.0f);
Q3(v, x, static_cast<float>(x0));
Q3(v, y, static_cast<float>(y1));
Q3(v, color, color1);
Q3(v, u, 2.0f);
Q3(v, v, 3.0f);
}
EndVertices();
}
void MicroprofileDrawer::DrawLine2D(uint32_t count, float* vertices,
uint32_t color) {
if (!count || !vertices) {
return;
}
auto v = BeginVertices(ImmediatePrimitiveType::kLines, 2 * (count - 1));
color = 0xff000000 | ((color & 0xff) << 16) | (color & 0xff00ff00) |
((color >> 16) & 0xff);
for (uint32_t i = 0; i < count - 1; ++i) {
v[0].x = vertices[i * 2];
v[0].y = vertices[i * 2 + 1];
v[0].color = color;
v[0].u = 2.0f;
v[0].v = 2.0f;
v[1].x = vertices[(i + 1) * 2];
v[1].y = vertices[(i + 1) * 2 + 1];
v[1].color = color;
v[1].u = 2.0f;
v[1].v = 2.0f;
v += 2;
}
EndVertices();
}
void MicroprofileDrawer::DrawText(int x, int y, uint32_t color,
const char* text, int text_length) {
if (!text_length) {
return;
}
const float fOffsetU = kFontCharWidth / static_cast<float>(kFontTextureWidth);
float fX = static_cast<float>(x);
float fY = static_cast<float>(y);
float fY2 = fY + (kFontCharHeight + 1);
auto v = BeginVertices(ImmediatePrimitiveType::kTriangles, 6 * text_length);
const char* pStr = text;
color = 0xff000000 | ((color & 0xff) << 16) | (color & 0xff00) |
((color >> 16) & 0xff);
for (size_t j = 0; j < text_length; ++j) {
int16_t char_offset = font_description_.char_offsets[*pStr++];
float fOffset = char_offset / 1024.0f;
Q0(v, x, fX);
Q0(v, y, fY);
Q0(v, color, color);
Q0(v, u, fOffset);
Q0(v, v, 0.0f);
Q1(v, x, fX + kFontCharWidth);
Q1(v, y, fY);
Q1(v, color, color);
Q1(v, u, fOffset + fOffsetU);
Q1(v, v, 0.0f);
Q2(v, x, fX + kFontCharWidth);
Q2(v, y, fY2);
Q2(v, color, color);
Q2(v, u, fOffset + fOffsetU);
Q2(v, v, 1.0f);
Q3(v, x, fX);
Q3(v, y, fY2);
Q3(v, color, color);
Q3(v, u, fOffset);
Q3(v, v, 1.0f);
fX += kFontCharWidth + 1;
v += 6;
}
EndVertices();
}
} // namespace ui
} // namespace xe
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