1 files changed, 304 insertions, 0 deletions
diff --git a/xbmc/guilib/GUITextureGLES.cpp b/xbmc/guilib/GUITextureGLES.cpp
new file mode 100644
index 0000000..d92201a
--- /dev/null
+++ b/xbmc/guilib/GUITextureGLES.cpp
@@ -0,0 +1,304 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "GUITextureGLES.h"
+
+#include "ServiceBroker.h"
+#include "Texture.h"
+#include "rendering/gles/RenderSystemGLES.h"
+#include "utils/GLUtils.h"
+#include "utils/MathUtils.h"
+#include "utils/log.h"
+#include "windowing/GraphicContext.h"
+#include "windowing/WinSystem.h"
+
+#include <cstddef>
+
+void CGUITextureGLES::Register()
+{
+  CGUITexture::Register(CGUITextureGLES::CreateTexture, CGUITextureGLES::DrawQuad);
+}
+
+CGUITexture* CGUITextureGLES::CreateTexture(
+    float posX, float posY, float width, float height, const CTextureInfo& texture)
+{
+  return new CGUITextureGLES(posX, posY, width, height, texture);
+}
+
+CGUITextureGLES::CGUITextureGLES(
+    float posX, float posY, float width, float height, const CTextureInfo& texture)
+  : CGUITexture(posX, posY, width, height, texture)
+{
+  m_renderSystem = dynamic_cast<CRenderSystemGLES*>(CServiceBroker::GetRenderSystem());
+}
+
+CGUITextureGLES* CGUITextureGLES::Clone() const
+{
+  return new CGUITextureGLES(*this);
+}
+
+void CGUITextureGLES::Begin(UTILS::COLOR::Color color)
+{
+  CTexture* texture = m_texture.m_textures[m_currentFrame].get();
+  texture->LoadToGPU();
+  if (m_diffuse.size())
+    m_diffuse.m_textures[0]->LoadToGPU();
+
+  texture->BindToUnit(0);
+
+  // Setup Colors
+  m_col[0] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::R, color);
+  m_col[1] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::G, color);
+  m_col[2] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::B, color);
+  m_col[3] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::A, color);
+
+  if (CServiceBroker::GetWinSystem()->UseLimitedColor())
+  {
+    m_col[0] = (235 - 16) * m_col[0] / 255 + 16;
+    m_col[1] = (235 - 16) * m_col[1] / 255 + 16;
+    m_col[2] = (235 - 16) * m_col[2] / 255 + 16;
+  }
+
+  bool hasAlpha = m_texture.m_textures[m_currentFrame]->HasAlpha() || m_col[3] < 255;
+
+  if (m_diffuse.size())
+  {
+    if (m_col[0] == 255 && m_col[1] == 255 && m_col[2] == 255 && m_col[3] == 255 )
+    {
+      m_renderSystem->EnableGUIShader(ShaderMethodGLES::SM_MULTI);
+    }
+    else
+    {
+      m_renderSystem->EnableGUIShader(ShaderMethodGLES::SM_MULTI_BLENDCOLOR);
+    }
+
+    hasAlpha |= m_diffuse.m_textures[0]->HasAlpha();
+
+    m_diffuse.m_textures[0]->BindToUnit(1);
+
+  }
+  else
+  {
+    if (m_col[0] == 255 && m_col[1] == 255 && m_col[2] == 255 && m_col[3] == 255)
+    {
+      m_renderSystem->EnableGUIShader(ShaderMethodGLES::SM_TEXTURE_NOBLEND);
+    }
+    else
+    {
+      m_renderSystem->EnableGUIShader(ShaderMethodGLES::SM_TEXTURE);
+    }
+  }
+
+  if ( hasAlpha )
+  {
+    glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE_MINUS_DST_ALPHA, GL_ONE);
+    glEnable( GL_BLEND );
+  }
+  else
+  {
+    glDisable(GL_BLEND);
+  }
+  m_packedVertices.clear();
+}
+
+void CGUITextureGLES::End()
+{
+  if (m_packedVertices.size())
+  {
+    GLint posLoc  = m_renderSystem->GUIShaderGetPos();
+    GLint tex0Loc = m_renderSystem->GUIShaderGetCoord0();
+    GLint tex1Loc = m_renderSystem->GUIShaderGetCoord1();
+    GLint uniColLoc = m_renderSystem->GUIShaderGetUniCol();
+
+    if(uniColLoc >= 0)
+    {
+      glUniform4f(uniColLoc,(m_col[0] / 255.0f), (m_col[1] / 255.0f), (m_col[2] / 255.0f), (m_col[3] / 255.0f));
+    }
+
+    if(m_diffuse.size())
+    {
+      glVertexAttribPointer(tex1Loc, 2, GL_FLOAT, 0, sizeof(PackedVertex), (char*)&m_packedVertices[0] + offsetof(PackedVertex, u2));
+      glEnableVertexAttribArray(tex1Loc);
+    }
+    glVertexAttribPointer(posLoc, 3, GL_FLOAT, 0, sizeof(PackedVertex), (char*)&m_packedVertices[0] + offsetof(PackedVertex, x));
+    glEnableVertexAttribArray(posLoc);
+    glVertexAttribPointer(tex0Loc, 2, GL_FLOAT, 0, sizeof(PackedVertex), (char*)&m_packedVertices[0] + offsetof(PackedVertex, u1));
+    glEnableVertexAttribArray(tex0Loc);
+
+    glDrawElements(GL_TRIANGLES, m_packedVertices.size()*6 / 4, GL_UNSIGNED_SHORT, m_idx.data());
+
+    if (m_diffuse.size())
+      glDisableVertexAttribArray(tex1Loc);
+
+    glDisableVertexAttribArray(posLoc);
+    glDisableVertexAttribArray(tex0Loc);
+  }
+
+  if (m_diffuse.size())
+    glActiveTexture(GL_TEXTURE0);
+  glEnable(GL_BLEND);
+  m_renderSystem->DisableGUIShader();
+}
+
+void CGUITextureGLES::Draw(float *x, float *y, float *z, const CRect &texture, const CRect &diffuse, int orientation)
+{
+  PackedVertex vertices[4];
+
+  // Setup texture coordinates
+  //TopLeft
+  vertices[0].u1 = texture.x1;
+  vertices[0].v1 = texture.y1;
+  //TopRight
+  if (orientation & 4)
+  {
+    vertices[1].u1 = texture.x1;
+    vertices[1].v1 = texture.y2;
+  }
+  else
+  {
+    vertices[1].u1 = texture.x2;
+    vertices[1].v1 = texture.y1;
+  }
+  //BottomRight
+  vertices[2].u1 = texture.x2;
+  vertices[2].v1 = texture.y2;
+  //BottomLeft
+  if (orientation & 4)
+  {
+    vertices[3].u1 = texture.x2;
+    vertices[3].v1 = texture.y1;
+  }
+  else
+  {
+    vertices[3].u1 = texture.x1;
+    vertices[3].v1 = texture.y2;
+  }
+
+  if (m_diffuse.size())
+  {
+    //TopLeft
+    vertices[0].u2 = diffuse.x1;
+    vertices[0].v2 = diffuse.y1;
+    //TopRight
+    if (m_info.orientation & 4)
+    {
+      vertices[1].u2 = diffuse.x1;
+      vertices[1].v2 = diffuse.y2;
+    }
+    else
+    {
+      vertices[1].u2 = diffuse.x2;
+      vertices[1].v2 = diffuse.y1;
+    }
+    //BottomRight
+    vertices[2].u2 = diffuse.x2;
+    vertices[2].v2 = diffuse.y2;
+    //BottomLeft
+    if (m_info.orientation & 4)
+    {
+      vertices[3].u2 = diffuse.x2;
+      vertices[3].v2 = diffuse.y1;
+    }
+    else
+    {
+      vertices[3].u2 = diffuse.x1;
+      vertices[3].v2 = diffuse.y2;
+    }
+  }
+
+  for (int i=0; i<4; i++)
+  {
+    vertices[i].x = x[i];
+    vertices[i].y = y[i];
+    vertices[i].z = z[i];
+    m_packedVertices.push_back(vertices[i]);
+  }
+
+  if ((m_packedVertices.size() / 4) > (m_idx.size() / 6))
+  {
+    size_t i = m_packedVertices.size() - 4;
+    m_idx.push_back(i+0);
+    m_idx.push_back(i+1);
+    m_idx.push_back(i+2);
+    m_idx.push_back(i+2);
+    m_idx.push_back(i+3);
+    m_idx.push_back(i+0);
+  }
+}
+
+void CGUITextureGLES::DrawQuad(const CRect& rect,
+                               UTILS::COLOR::Color color,
+                               CTexture* texture,
+                               const CRect* texCoords)
+{
+  CRenderSystemGLES *renderSystem = dynamic_cast<CRenderSystemGLES*>(CServiceBroker::GetRenderSystem());
+  if (texture)
+  {
+    texture->LoadToGPU();
+    texture->BindToUnit(0);
+  }
+
+  glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
+  glEnable(GL_BLEND);          // Turn Blending On
+
+  VerifyGLState();
+
+  GLubyte col[4];
+  GLfloat ver[4][3];
+  GLfloat tex[4][2];
+  GLubyte idx[4] = {0, 1, 3, 2};        //determines order of triangle strip
+
+  if (texture)
+    renderSystem->EnableGUIShader(ShaderMethodGLES::SM_TEXTURE);
+  else
+    renderSystem->EnableGUIShader(ShaderMethodGLES::SM_DEFAULT);
+
+  GLint posLoc   = renderSystem->GUIShaderGetPos();
+  GLint tex0Loc  = renderSystem->GUIShaderGetCoord0();
+  GLint uniColLoc= renderSystem->GUIShaderGetUniCol();
+
+  glVertexAttribPointer(posLoc,  3, GL_FLOAT, 0, 0, ver);
+  if (texture)
+    glVertexAttribPointer(tex0Loc, 2, GL_FLOAT, 0, 0, tex);
+
+  glEnableVertexAttribArray(posLoc);
+  if (texture)
+    glEnableVertexAttribArray(tex0Loc);
+
+  // Setup Colors
+  col[0] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::R, color);
+  col[1] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::G, color);
+  col[2] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::B, color);
+  col[3] = KODI::UTILS::GL::GetChannelFromARGB(KODI::UTILS::GL::ColorChannel::A, color);
+
+  glUniform4f(uniColLoc, col[0] / 255.0f, col[1] / 255.0f, col[2] / 255.0f, col[3] / 255.0f);
+
+  ver[0][0] = ver[3][0] = rect.x1;
+  ver[0][1] = ver[1][1] = rect.y1;
+  ver[1][0] = ver[2][0] = rect.x2;
+  ver[2][1] = ver[3][1] = rect.y2;
+  ver[0][2] = ver[1][2] = ver[2][2] = ver[3][2]= 0;
+
+  if (texture)
+  {
+    // Setup texture coordinates
+    CRect coords = texCoords ? *texCoords : CRect(0.0f, 0.0f, 1.0f, 1.0f);
+    tex[0][0] = tex[3][0] = coords.x1;
+    tex[0][1] = tex[1][1] = coords.y1;
+    tex[1][0] = tex[2][0] = coords.x2;
+    tex[2][1] = tex[3][1] = coords.y2;
+  }
+  glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_BYTE, idx);
+
+  glDisableVertexAttribArray(posLoc);
+  if (texture)
+    glDisableVertexAttribArray(tex0Loc);
+
+  renderSystem->DisableGUIShader();
+}
+