void SDLRenderer::impl::drawTexture(TextureID tid, int x, int y) { validateTexture(tid); SDL_Rect dst; dst.x = x; dst.y = y; SDL_QueryTexture(textures[tid], NULL, NULL, &dst.w, &dst.h); SDL_RenderCopy(ren, textures[tid], NULL, &dst); }
void SDLRenderer::impl::drawTextureCentered(TextureID tid, int x, int y, int w, int h, double scale) { validateTexture(tid); int textureWidth, textureHeight; SDL_QueryTexture(textures[tid], NULL, NULL, &textureWidth, &textureHeight); textureWidth = (int)(textureWidth * scale); textureHeight = (int)(textureHeight * scale); SDL_Rect dst; dst.x = x + (w - textureWidth) / 2; dst.y = y + (h - textureHeight) / 2; dst.w = textureWidth; dst.h = textureHeight; SDL_RenderCopy(ren, textures[tid], NULL, &dst); }
void SDLRenderer::impl::drawBackground(TextureID tid) { validateTexture(tid); SDL_RenderCopy(ren, textures[tid], NULL, NULL); }
void LayerBase::drawWithOpenGL(const Region& clip, GLint textureName, const GGLSurface& t) const { const DisplayHardware& hw(graphicPlane(0).displayHardware()); const uint32_t fbHeight = hw.getHeight(); const State& s(drawingState()); // bind our texture validateTexture(textureName); glEnable(GL_TEXTURE_2D); // Dithering... if (s.flags & ISurfaceComposer::eLayerDither) { glEnable(GL_DITHER); } else { glDisable(GL_DITHER); } if (UNLIKELY(s.alpha < 0xFF)) { // We have an alpha-modulation. We need to modulate all // texture components by alpha because we're always using // premultiplied alpha. // If the texture doesn't have an alpha channel we can // use REPLACE and switch to non premultiplied alpha // blending (SRCA/ONE_MINUS_SRCA). GLenum env, src; if (needsBlending()) { env = GL_MODULATE; src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA; } else { env = GL_REPLACE; src = GL_SRC_ALPHA; } const GGLfixed alpha = (s.alpha << 16)/255; glColor4x(alpha, alpha, alpha, alpha); glEnable(GL_BLEND); glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA); glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, env); } else { glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glColor4x(0x10000, 0x10000, 0x10000, 0x10000); if (needsBlending()) { GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA; glEnable(GL_BLEND); glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA); } else { glDisable(GL_BLEND); } } if (UNLIKELY(transformed() || !(mFlags & DisplayHardware::DRAW_TEXTURE_EXTENSION) )) { //StopWatch watch("GL transformed"); Region::iterator iterator(clip); if (iterator) { // always use high-quality filtering with fast configurations bool fast = !(mFlags & DisplayHardware::SLOW_CONFIG); if (!fast && s.flags & ISurfaceComposer::eLayerFilter) { glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); } const GLfixed texCoords[4][2] = { { 0, 0 }, { 0, 0x10000 }, { 0x10000, 0x10000 }, { 0x10000, 0 } }; glMatrixMode(GL_TEXTURE); glLoadIdentity(); if (!(mFlags & DisplayHardware::NPOT_EXTENSION)) { // find the smallest power-of-two that will accommodate our surface GLuint tw = 1 << (31 - clz(t.width)); GLuint th = 1 << (31 - clz(t.height)); if (tw < t.width) tw <<= 1; if (th < t.height) th <<= 1; // this divide should be relatively fast because it's // a power-of-two (optimized path in libgcc) GLfloat ws = GLfloat(t.width) /tw; GLfloat hs = GLfloat(t.height)/th; glScalef(ws, hs, 1.0f); } glEnableClientState(GL_TEXTURE_COORD_ARRAY); glVertexPointer(2, GL_FIXED, 0, mVertices); glTexCoordPointer(2, GL_FIXED, 0, texCoords); Rect r; while (iterator.iterate(&r)) { const GLint sy = fbHeight - (r.top + r.height()); glScissor(r.left, sy, r.width(), r.height()); glDrawArrays(GL_TRIANGLE_FAN, 0, 4); } if (!fast && s.flags & ISurfaceComposer::eLayerFilter) { glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); } glDisableClientState(GL_TEXTURE_COORD_ARRAY); } } else { Region::iterator iterator(clip); if (iterator) { Rect r; GLint crop[4] = { 0, t.height, t.width, -t.height }; glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); int x = tx(); int y = ty(); y = fbHeight - (y + t.height); while (iterator.iterate(&r)) { const GLint sy = fbHeight - (r.top + r.height()); glScissor(r.left, sy, r.width(), r.height()); glDrawTexiOES(x, y, 0, t.width, t.height); } } } }