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WINTERMUTE: Permanently store texture data in main memory

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This commit is contained in:
Gunnar Birke 2020-10-17 23:18:09 +02:00 committed by Paweł Kołodziejski
parent b0c8870a00
commit 8eacf532c9
2 changed files with 20 additions and 29 deletions
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47
engines/wintermute/base/gfx/opengl/base_surface_opengl3d.cpp
View File

@ -66,6 +66,7 @@ BaseSurfaceOpenGL3D::~BaseSurfaceOpenGL3D() {
bool BaseSurfaceOpenGL3D::invalidate() {
glDeleteTextures(1, &_tex);
_imageData->free();
delete[] _imageData;
_imageData = nullptr;
@ -81,16 +82,7 @@ bool BaseSurfaceOpenGL3D::displayHalfTrans(int x, int y, Rect32 rect) {
bool BaseSurfaceOpenGL3D::isTransparentAt(int x, int y) {
prepareToDraw();
uint8 *imageData = new uint8[4 * _texWidth * _texHeight]();
// assume 32 bit rgba for now
glBindTexture(GL_TEXTURE_2D, _tex);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, imageData);
glBindTexture(GL_TEXTURE_2D, 0);
uint8 alpha = imageData[y * _texWidth * 4 + x * 4 + 3];
delete[] imageData;
uint8 alpha = reinterpret_cast<uint8 *>(_imageData->getPixels())[y * _width * 4 + x * 4 + 3];
return alpha < 128;
}
@ -179,7 +171,12 @@ bool BaseSurfaceOpenGL3D::create(const Common::String &filename, bool defaultCK,
bool needsColorKey = false;
bool replaceAlpha = true;
Graphics::Surface *surf = img.getSurface()->convertTo(OpenGL::TextureGL::getRGBAPixelFormat(), img.getPalette());
if (_imageData) {
_imageData->free();
delete _imageData;
}
_imageData = img.getSurface()->convertTo(OpenGL::TextureGL::getRGBAPixelFormat(), img.getPalette());
if (_filename.hasSuffix(".bmp") && img.getSurface()->format.bytesPerPixel == 4) {
// 32 bpp BMPs have nothing useful in their alpha-channel -> color-key
@ -190,13 +187,10 @@ bool BaseSurfaceOpenGL3D::create(const Common::String &filename, bool defaultCK,
}
if (needsColorKey) {
applyColorKey(*surf, ckRed, ckGreen, ckBlue, replaceAlpha);
applyColorKey(*_imageData, ckRed, ckGreen, ckBlue, replaceAlpha);
}
putSurface(*surf);
surf->free();
delete surf;
putSurface(*_imageData);
if (_lifeTime == 0 || lifeTime == -1 || lifeTime > _lifeTime) {
_lifeTime = lifeTime;
@ -227,6 +221,14 @@ bool BaseSurfaceOpenGL3D::create(int width, int height) {
}
bool BaseSurfaceOpenGL3D::putSurface(const Graphics::Surface &surface, bool hasAlpha) {
if (!_imageData) {
_imageData = new Graphics::Surface();
}
if (_imageData && _imageData != &surface) {
_imageData->copyFrom(surface);
}
_width = surface.w;
_height = surface.h;
_texWidth = Common::nextHigher2(_width);
@ -266,22 +268,11 @@ bool BaseSurfaceOpenGL3D::comparePixel(int x, int y, byte r, byte g, byte b, int
}
bool BaseSurfaceOpenGL3D::startPixelOp() {
if (_imageData) {
return true;
}
prepareToDraw();
_imageData = new uint8[4 * _texWidth * _texHeight]();
glBindTexture(GL_TEXTURE_2D, _tex);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, _imageData);
return true;
}
bool BaseSurfaceOpenGL3D::endPixelOp() {
glBindTexture(GL_TEXTURE_2D, 0);
delete[] _imageData;
_imageData = nullptr;
return true;
}
@ -295,7 +286,7 @@ bool BaseSurfaceOpenGL3D::isTransparentAtLite(int x, int y) {
}
//TODO: Check for endianness issues
uint8 alpha = _imageData[y * _texWidth * 4 + x * 4 + 3];
uint8 alpha = reinterpret_cast<uint8 *>(_imageData->getPixels())[y * _width * 4 + x * 4 + 3];
return alpha == 0;
}

2
engines/wintermute/base/gfx/opengl/base_surface_opengl3d.h
View File

@ -69,7 +69,7 @@ public:
private:
GLuint _tex;
BaseRenderer3D *_renderer;
uint8 *_imageData;
Graphics::Surface *_imageData;
uint _texWidth;
uint _texHeight;
};