thirdparty/scummvm
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Improve overlays

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This commit is contained in:
Joel Teichroeb 2015-01-31 13:36:01 -08:00
parent 28fbf84855
commit 875c4b09a5
6 changed files with 77 additions and 24 deletions
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24
engines/grim/gfx_opengl.cpp
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@ -949,23 +949,23 @@ void GfxOpenGL::drawOverlay(const Overlay *overlay) {
glDisable(GL_DEPTH_TEST);
float height = overlay->getHeight();
float width = overlay->getWidth();
float x = overlay->_x;
float y = overlay->_y;
// In Grim, the bottom edge of the sprite is at y=0 and
// the texture is flipped along the X-axis.
float height = overlay->_material->getData()->_textures[0]->_height;
float width = overlay->_material->getData()->_textures[0]->_width;
glBegin(GL_POLYGON);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(0, height, 0.0f);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0, 0, 0.0f);
glVertex2f(x, y);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(width, +0, 0.0f);
glVertex2f((x + width), y);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(width, height, 0.0f);
glVertex2f((x + width), (y + height));
glTexCoord2f(0.0f, 1.0f);
glVertex2f(x, (y + height));
glEnd();
glEnable(GL_LIGHTING);
glDisable(GL_ALPHA_TEST);